MINI EYESAFE LASER INFRARED OBSERVATION SET (MELIOS) AN/PVS-6 (NSN ) (EIC: N/A)

Transcription

1 TECHNICAL MANUAL UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST) FOR MINI EYESAFE LASER INFRARED OBSERVATION SET (MELIOS) AN/PVS-6 (NSN ) (EIC: N/A) This publication is required for official use or for administrative or operational purposes on!y. Distribution is limited to U.S. Government Agencies. Other requests for this document must be referred to Commander, U.S. Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LM-LT, Fort Monmouth, New Jersey DESTRUCTION NOTICE Destroy by any method that will prevent disclosure of contents or reconstruction of the document. HEADQUARTERS, DEPARTMENT OF THE ARMY 15 DECEMBER 1993

2 TM 1l &P C1 Change No. 1 HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC 15 Febuary 1996 Unit and Direct Support Maintenance Manual Including Repair Parts And Special Tools List For Mini Eyesafe Laser Infrared Observation Set (MELIOS) AN/PVS-6 (NSN ) (EIC: N/A) TM &P, 15 December 1993, is changed as follows: 1. Remove old pages and insert new pages as indicated below. New or changed material is indicated by a vertical bar in the margin of the page. Added or revised illustrations are indicated by a miniature pointing hand. Remove pages Insert pages A and B A and B i and ii i and ii 1-1 through 1-9( 1-10 Mark) 1-1 through 1-9(1-10 blank) 2-1 through through (2-10 blank) 2-9 and through 3-15(3-16 blank) 3-1 through 3-18 A-l(A-2 blank) A- l(a-2 blank) B-3 through B-6 B-3 through B-6 Figure 1 through 7-1 Figure 1 through 7-1 I-1 through I-3 I-1 through I-3 D-1 and D-2 D-1 and D-2 Index 1 and Index 2 Index 1 and Index 2 2. File this change sheet in front of manual for reference purposes. This publication is required for official use or for administrative or operational purposes only. Distribution is limited to U.S. Government Agencies. other requests for this document must be referred to Commander, US Army Communications--Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LM-LP, Fort Monmouth, NJ DESTRUCTION NOTICE - Destroy by any method that will prevent disclosure of contents or reconstruction of the document.

3 By Order of the Secretary of the Army: DENNIS J. REIMER General, United States Army Chief of Staff Acting Administrative Assistant to the Secretary of the Army DISTRIBUTION: To be distributed in accordance with DA Form E, block 9683 requirements for TM &P.

4 TM 1l &P SAFETY STEPS TO FOLLOW IF SOMEONE IS THE VICTIM OF ELECTRICAL SHOCK DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL IF POSSIBLE, TURN OFF THE ELECTRICAL POWER IF YOU CANNOT TURN OFF THE ELECTRICAL POWER, PULL, PUSH, OR LIFT THE PERSON TO SAFETY USING A DRY WOODEN POLE OR A DRY ROPE OR SOME OTHER INSULATING MATERIAL SEND FOR HELP AS SOON AS POSSIBLE AFTER THE INJURED PERSON IS FREE OF CONTACT WITH THE SOURCE OF ELECTRICAL SHOCK, MOVE THE PERSON A SHORT DISTANCE AWAY AND IMMEDIATELY START ARTIFICIAL RESUSCITATION A

5 THE MELIOS, AN/PVS-6, is a restricted, eyesafe, laser system. It may be safely operated in the classroom and on uncleared training ranges. It may be used safely during force-on-force training, including being viewed directly through magnifying optics of opposing force systems. DO NOT CHECK TO DETERMINE IF THE MELIOS IS OPERATIONAL BY LOOKING INTO THE LASER UNIT AND FIRING THE LASER. CAUTION: Although the MELIOS is a restricted eye-safe device, other Army lasers may pose a serious hazard to personnel if used improperly. Always consult the applicable technical manual prior to using any laser system. WARNING Lithium Batteries BA-6516/U These batteries, BA-5516/U and BA-6516/U, contain a gas under pressure. DO NOT heat, puncture, disassemble, short circuit or attempt to recharge, or otherwise tarnper with battery. Turn off equipment if battery compartment becomes hot. Wait until batteries have cooled before removing them. Lithium Batteries have safety vents to prevent explosion. When they are venting gas, you will smell gas, your eyes may become irritated, or you may hear the sound of gas escaping. When safety vents have operated, batteries must still be handled with care. Return batteries to Defense Reutilization and Marketing Office for disposal in accordance with DOD Handbook Ml. Nickel Cadmium Battery BB-516/U Battery BB-516/U should be handled in the following manner: 1) Do NOT dispose of in fire. 2) Do NOT short circuit. 3) Return batteries to Defense Reutilization and Marketing office for disposal in accordance with DOD Handbook M1. B Change 1

6 WARNING Acetone Keep away from heat sparks and flames. Use with adequate ventilation. Avoid prolonged or repeated contact with skin to prevent personal injury. Keep container closed when not in use. High Voltage Capacitors used in the operation of this equipment are discharged at high voltages during the operation of the equipment. Do not be misled by the term low voltage. Potentials as low as 50 volts may cause death under adverse conditions. Be careful not to contact high voltage connections during the operation or maintenance of this equipment. Be sure that all capacitors are discharged and all batteries removed before disassembling the AN\PVS-6. C

7 Technical Manual No. 1l &P HEADQUARTERS DEPARTMENT OF THE ARMY Washington, DC 15 December 1993 Unit and Direct Support Maintenance Manual Including Repair Parts And Special Tools List For Mini Eyesafe Laser Inbred Observation Set (MELIOS) AN/PVS-6 (NSN ) (EIC: N/A) REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form located in back of this manual direct to: Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LM-LT Fort Monmouth, New Jersey In either case a reply will be furnished directly to you. Page How to Use This Manual ii Chapter 1 INTRODUCTION Section I General Information II Equipment Description anddata Principles of Operation Chapter 2 UNIT MAINTENANCE Section I Repair Parts, Special Tools and TMDE Requirements II Service Upon Receipt III Preventive Maintenance Checks and Services IV Maintenance Instructions i

8 Chapter 3 Section I II III IV Appendix A Appendix B Appendix C Section I Section II DIRECT SUPPORT MAINTENANCE General Repair Parts, Special Tools and TMDE Troubleshooting Maintenance Instructions References Maintenance Allocation Chart Repair Parts and Special Tools List Introduction Repair Parts List A-1 B-1 C-1 C Group 00 MELIOS AN/PVS Group 01 Laser Rangefinder - MELIOS Optics Module Laser Module Electronics Module C/VAM Module Group 02 Carrying Case Section IV Cross-Reference Indexes National Stock Number Index I-1 Part Number Index I-2 Figure and Item Number Index I-3 Appendix D Expendable/Durable Supplies and Materials List D-1 Glossary GLOSSARY Index INDEX- 1 HOW TO USE THIS MANUAL This manual is divided in Chapters for the Unit Level maintainer and the Direct Support repairer. Refer to the Maintenance Allocation Chart (MAC) in Appendix B for authorized maintenance tasks. The Unit Level maintainer should refer to the index for the Remove and Replace procedure page number for the item to be replaced. The Direct Support repairer should refer to the symptom index for the appropriate troubleshooting procedure. The troubleshooting chart is used to determine the module to be replaced. The index will give the Remove and Replace procedure page number. ii Change 1

9 Chapter 1 INTRODUCTION Section I. General Information 1-1 Scope. This manual covers the unit and direct support maintenance for the AN/PVS-6 Mini Eyesafe Laser Infrared Observation Set (MELIOS). 1-2 Consolidated index of Army publications and blank forms. Refer to the latest issue of DA Pam to determine whether there are new editions, changes or additional publications pertaining to the equipment. 1-3 Maintenance forms, records, and reports. a. Reports of Maintenance and Unsatisfactory Equipment. Department of the Army forms and procedures used for equipment maintenance will be those prescribed by DA Pam , as contained in Maintenance Management Update. b. Reporting of item and Packaging Discrepancies. Fill out and forward SF 364 (Report of Discrepancy (ROD)) as prescribed in AR 735-1l-2/DLAR /SECNAVINST /AFR /MCO J. c. Transportation Discrepancy Report (TDR) (SF361). Fill out and forward Transportation Discrepancy Report (TDR) (SF 361) as prescribed in AR 55-38/NAVSUPINST C/AFR75-18/MCO P D/DLAR Destruction of Army materiel to prevent enemy use. Destruction of Army electronics materiel to prevent enemy use shall be in accordance with TM Preparation for storage or shipment. Administrative storage of equipment issued to and used by Army activities will have preventive maintenance performed in accordance with the Preventive Maintenance Checks and Services (PMCS) charts before storing. When removing the equipment from administrative storage the PMCS should be performed to assure operational readiness. 1-6 Reporting equipment improvement recommendations (EIR). If your equipment needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don t like about the design. Put it on an SF 368 (Quality Deficiency Report). Mail it to Commander, US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-ED-TC, Fort Monmouth, New Jersey We ll send you a reply. 1-1

10 1-7 Warranty. The equipment should be checked for warranty label restrictions to ensure warranty is not voided by maintenance action. Section II. Equipment Description and Data 1-8 Purpose and use. The AN/PVS-6, MELIOS, is used to determine the range to a target selected by the operator. 1-9 Description. (Figure 1-1) a. Mini Eyesafe Laser Observation Set (MELIOS). The MELIOS is made up of the following components: MELIOS Laser Rangefinder (MLRF), carrying case, shipping case, tripod, lens cleaning tissue, lens cleaning compound, and operator s manual. b. MELIOS Laser Rangefinder (MLRF). The MLRF is the major component of the MELIOS. The MLRF is powered by one of two 24 volt batteries; a BA-6516/U, non-rechargeable Lithium Thionyl Chloride battery, or a BB-516/U, rechargeable sealed Nickel Cadmium battery. The MLRF is made up of four modules: the Laser Module, the Optics Module, the Electronics Module, and the Compass /Vertical Angle Measurement Module. c. Carrying Case. The Carrying Case is used to carry the MLRF, two batteries, lens cleaning tissue, lens cleaning compound, the tripod, and an operator s manual. It has fasteners to attach to web gear. It is constructed of a woven nylon fabric. The cover will protect the unit from dust and rain. d. Tripod. The Tripod is used to provide a stable support for the MLRF while holding the MLRF to a height of 7.38 inches (18.7 cm). The head mechanism permits the mounted MLRF to swivel, rotate, and/or turn. e. Lens Cleaning Compound and Tissue. A plastic dropper bottle with lens cleaning compound and a package of lens cleaning tissue is provided to be used in cleaning the lens surfaces. f. Shipping Case. The Shipping Case is used to protect the MELIOS system in storage and during transportation. 1-2 Change 1

11 Figure 1-1. Mini Eyesafe Laser Infrared Observation Set (MELIOS) AN/PVS-6. Change 1 1-3

12 1-10 Equipment Data Table 1-1 lists the electrical, environmental, and physical specifications of the AN/PVS-6 MELIOS. Table 1-1. Equipment Data Characteristic Specification Magnification 7X Field of View 70 System Weight 6.5 lbs. Batteries BA-6516/U, non-rechargeable Lithium Thionyl Chloride, (two each) or BB-516/U, rechargeable sealed Nickel Cadmium Operating Temperature -26 F to F Range (-32 C to 49 C) Range Accuracy ±5 meters Azimuth Accuracy Vertical Angle Accuracy ±10 mils ±10 mils 1-4 Change 1

13 Section III. Principles of Operation 1-11 MLRF Functional Description. (Figure 1-2 and Figure 1-3) Figure 1-2. MELIOS Laser Rangefinder (MLRF) Change 1 1-5

14 a. Laser Module (1) The Laser Module consists of: Laser Cavity Assembly Q-Switch Assembly Output Collimator Telescope Pulse Forming Network (PFN) Fire Switch Mirror Assembly Housing Assembly Motor Driver Assembly Flex Circuit, Laser Module Baseplate Assembly Electrical Connector (2) The Pulse Forming Network (PFN) receives high voltage from the Power Supply Module (in the Electronics Module) and charges the storage capacitor when the Charge Switch is pressed. The PFN uses a capacitor to store energy during the charge cycle. When the capacitor is fully charged, the Ready Indicator illuminates. When the flashlamp trigger signal is given, a high voltage pulse is generated across the Flashlamp. (3) When the Mode Switch (on the Electronics Module) is in the FIRST RTN or LAST RTN position and the Ready indicator is visible, the signal from the Fire Switch commands the Range Counter Module (in the Optics Module) to provide a Q-motor start signal. This start signal is connected to the Motor Driver Assembly to start the Q-Switch motor. When the motor reaches the proper speed and position, a flashlamp trigger signal is produced that discharges the stored energy of the capacitor in the PFN through the Flashlamp. Part of the laser beam output, used as an initiating pulse designated T. is shunted to the Prism Cluster Assembly (in the Optics Module). (4) When the Flashlamp triggers, it pumps the laser rod and the laser fires. The Laser, consisting of the flashlamp, laser rod Q-switch assembly and partial mirror assembly, produces an output beam. This beam travels through the Output Collimating Telescope, which is made up of a comer cube prism, telescope objective lenses, and the (visible light filter) output window. b. Optics Module 1-6 (1) The Optics Module consists of: Range Counter Module Prism Cluster Assembly Eyepiece Assembly Objective Lens Assembly Receiver Module Reticle LED Flex Circuit Assembly, Optics Module Housing Assembly, Optics Module Electrical Connector (2 ea) Test Connector

15 (2) The Optics Module receives visible light and the reflected laser energy from the target into the Objective Lens Assembly. The Objective Lens Assembly focuses the incoming visible light and reflected laser energy on the Prism Cluster Assembly. (3) At the Prism Cluster Assembly, the laser energy is diverted to the Receiver Module which provides a signal to the Range Counter Module to stop timing and convert the time into a distance for display in the Eyepiece Assembly. (4) The visible light is directed to the Eyepiece Assembly with the Reticle imposed over the target image. The Reticle, attached directly to the Prism Cluster Assembly, can be illuminated by pressing the Charge Switch, pulling the Reticle Control (on the Electronics Module) and rotating the control to obtain the desired illumination. The reticle illumination will be automatically cutoff after 8 seconds. (5) When the laser fires, the To pulse, received from the Laser Module, is used by the Receiver Module to signal the Range Counter Module to reset and start the timing circuits. (6) The Range Counter Module will provide a Q-motor start signal to the Laser Module when the Fire Switch (on the Laser Module) is pressed. If the Mode Switch position on the Electronics Module is FIRST RTN, the Range Counter Module will stop with the first return signal. If the position is LAST RTN, the Range Counter Module will display the value of the last return signal. (7) The display for range is mounted on the Range Counter Module in such a way as to be in the focal plane of the Eyepiece Assembly and will be observed at the bottom of the view in the Eyepiece Assembly. The Range Counter Module display is four digits corresponding to meters, with the last digit displayed as a zero or five only. A Ready indicator, to the left of the range digits, will be illuminated when the charge cycle is complete and until a Fire signal is given or eight seconds have elapsed. If a range is not taken within eight seconds after a Charge command, the unit will power down. A Low Battery condition is indicated by the display flashing all zeroes after the Charge Switch is pressed and until the Fire Switch is pressed. When the range value is displayed, the flashing stops. If more than one return signal is sensed by the Receiver Module during the timing cycle, a Multiple Target Indicator is illuminated to the right of the range digits in the display. (8) The Test Connector is used during repair. Two test points at the Test Connector are accessed. The ready test point is from the high voltage circuit and indicates a ready status as 5 Vdc. The reticle test point is the 5 Vdc to the reticle illuminating LED. This test point should be approximately 5 Vdc until the Reticle Control is pulled, at which time the voltage should drop to less than 2 Vdc. c. Compass/Vertical Angle Measurement Module (1) The C/VAM Module consists of: C/VAM Mode Switch C/VAM Module Housing Declination Angle Adjust pushbuttons (2) The C/VAM Mode switch has four positons: C/VAM, ZERO, DEC, and OFF. C/VAM contains the circuitry to provide target azimuth and vertical angle displays. The azimuth and vertical angle display, as well as the range display, are controlled by the Charge and Fire switches located on the Electronic Module and Laser Module. DEC. ADJ. pushbuttons allow for the correct selection of roils or degrees display and for correct Change 1 1-7

16 magnetic declination angles, when known, to be entered into the system. Vertical angle and azimuth sensors are contained in the C/VAM module while the 24 VDC power for the module is applied through the Mode Switch from the Power Supply module in the Electronics Module. d. Electronics Module (1) The Electronics Module consists of: Power Supply Module Housing, Electronics Module Flex Circuit, Electronics Module Charge Switch Mode Switch Reticle Control Electrical Connector (2) The Power Supply Module, depending on the position of the Mode Switch, supplies: 5 Vdc to the specified circuits in the Optics and Laser Modules. The 5 Vdc circuit is a precision voltage regulator using a monolithic switching regulator integrated circuit to obtain a positive 5 Vdc output. 12 Vdc to the Receiver Module circuits in the Optics Module. The 12 Vdc circuit is a precision voltage regulator using a monolithic switching regulator integrated circuit to obtain a regulated +12 Vdc output. The 12 Vdc circuit is a separate circuit from the 5 Vdc circuit. Switched 24 Vdc, battery voltage, to power the Q-motot in the Laser Module when the Charge Switch is pressed and a Q-motor start signal-is given when the Fire Switch is pressed. High Voltage for the Laser Module. The High Voltage output is produced from a flyback DC-to-DC converter circuit. The output is between 700 to 850 Vdc, adjusted by by a potentiometer located in the Laser Module. The potentiometer is used to determine the voltage level of the energy storage capacitor. The High Voltage circuit is held off until the Charge Switch is pressed. When the circu it reaches the regulation level, a Ready signal is sent to the Range Counter Module to illuminate the Ready Indicator in the Display. (3) The Mode Switch connects battery power to the Power Supply Module circuits. The Mode Switch has four positions: OFF, FIRST RTN. LAST RTN, TEST (PULL). OFF disconnects battery power from all circuits except the compass connector. FIRST RTN connects battery to all circuits (after the Charge Switch is pressed) and to the range counter to stop timing at the first return pulse, LAST RTN comects power to all circuits (after the Charge Switch is pressed) and will permit the timing to complete the full cycle and then display the value for the last return pulse, TEST (PULL) connects power to illuminate all elements and indicators in the dispkiy (after the Charge Switch is pressed). (4) With the Mode Switch in FIRST RTN or LAST RTN, the Charge Switch will initiate the charging of the PFN capacitor (in the Laser Module) and, when the capacitor reaches the set voltage level, the Ready indicator will illuminate in the display to the left of the range digits. (5) With the Mode Switch in any position except OFF. The Reticle Control will illuminate the Reticle in the Optics Module s eyepiece display when the Charge Switch is pressed. 1-8 Change 1

17 TM 1l &P. Figure 1-3. Functional Block Diagram Change 1 1-9(1-10 blank)

18 Chapter 2 UNIT MAINTENANCE Section I. Repair Parts, Special Tools and TMDE Requirements. 2-1 Repair Parts, Special Tools and TMDE Requirements. Tools required for unit maintenance are contained in the MAC, Section III. Lubrication materials are not required. Repair parts are listed in Appendix C, Repair Parts and Special Tools List (RPSTL). 2-2 Checking unpacked equipment. Section II. Service Upon Receipt a. Inspect the equipment for darnage incurred during shipment. If the equipment has been damaged, report the damage on DD Form 6, Packaging Improvement Report. b. Check the equipment against the packing slip to see if the shipment is complete. Report all discrepancies in accordance with the instructions of DA PAM c. Check to see whether the equipment has been modified or if covered under warranty. Section III. Preventive Maintenance Checks And Services 2-3 Preventive Maintenance Checks and Services. a. Preventive maintenance checks and services are limited to cleaning of the MELIOS components. Refer to the Operator s Manual. b. Lubrication Instructions. There are no lubrication requirements for the AN/PVS-6, MELIOS. 2-1

19 Section IV. Maintenance Instructions INITIAL SETUP Tools Tool Kit TK 101 Personnel Required: Maintenance Procedures. Unit maintenance is limited to the replacement of the lens cap, eyeshield plug, eyeshield assembly, mode switch knob, reticle control knob, battery cap assembly, battery cap, and charge switch and fire switch dust boots. a. Replacement of the Lens Cap. (Figure 2-1) NOTE Refer to TM for replacement of battery and neck strap. 1. Remove. Remove screw (2) from lens cap pivot. Remove and inspect screw (2), washer (3), spacer (1). Replace lens cap (4). If damaged, replace spacer (l), washer (3), screw (2). Figure 2-1. Lens Cap Replacement 2-2 Change 1

20 2. Install. Insert spacer (1) in lens cap (4) hole, apply adhesive (Item 1, App. D) to screw threads. Insert screw (2) through washer (3) and spacer (1) into MLRF. b. Replacement of the Eyeshield Plug. (Figure 2-2) 1. Remove. Remove eyeshield plug (6) from eyeshield assy. Remove screw (7), washers (5), and nut (4) from eyeshield plug. Inspect and replace screw (7), washers (5), nut (4), if damaged. 2. Remove lanyard (3): remove screw (2), washer (l), from MLRF. 3. Install. Apply sealing compound (Item 2, App. D) to screw (7) threads. Place screw (7) through a washer (5), lanyard (3) loop, eyeshield plug (6), the second washer (5), and nut (4). 4. Install lanyard (3): apply sealing compound (Item 2, App. D) to screw (2) threads. Insert screw (2) through washer (l), lanyard (3) loop (flat side of loop to MLRF), screw into hole on MLRF (lanyard will be loose). Figure 2-2. Eyeshield Plug Replacement 2-3

21 TM 1l &P c. Replacement of the Eyeshield Assembly. (Figure 2-3) 1. Remove. Remove eyeshield plug (2) from eyeshield assembly (3). Remove eyeshield assembly (3) from eyepiece assembly (1) by unscrewing eyeshield assembly (3) from eyepiece assembly (l). 2. Install. Screw eyeshield assembly (3) into eyepiece assembly (1). Place eyeshield plug (2) in eyeshield assembly (3). NOTE C/VAM Module need not be removed as shown in illustration. Figure 2-3. Eyeshield Assembly Replacement 2-4 Change 1

22 d. Replacement of Mode Switch Knob. (Figure 2-4) 1. Remove. Remove battery. Turn knob (2) for access to set screws (1). Loosen set screws (1). Pull knob (2) off shaft. 2. Install. Loosen set screws (1) in knob (2), position knob on shaft with flat of shaft to align with set screw opposite knob pointer. Tighten set screws (1) so that knob (2) cannot be pulled from shaft. Figure 2-4. Mode Switch Knob Replacement 2-5

23 e. Replacement of Reticle Control Knob. (Figure 2-5) 1. Remove. Remove battery. Turn knob (2) for access to set screws (1). Loosen set screws (1). Full knob (2) off shaft. 2. Install. Loosen set screws (1) in knob (2), position knob on shaft with flat of shaft to align with either set screw. Tighten set screws (1) so that knob (2) cannot be pulled from shaft. Figure 2-5. Reticle Control Knob Replacement 2-6

24 f. Replacement of Battery Cap Assembly. (Figure 2-6) 1. Remove. Turn Mode Switch to OFF. Remove screw (1) and detach end of lanyard (3) from the battery cap (2). Unscrew the battery cap (2) horn Electronics Module. Remove screw (4), flat washer (5), and lock washer (6). Remove lanyard (3) from Electronics Module. 2. Install. Ensure O-ring is positioned inside the battery compartment and screw battery cap (2) into Electronics Module. Apply sealing compound (Item 9, Appendix D) to threads of screw (1) and attach end of lanyard (3) to battery cap. Tighten screw until it contacts lanyard lug then loosen approximately one-half turn. Attach end of lanyard (3) to Electronics Module using screw (4), flat washer (5), and new lock washer (6). Figure 2-6. Battery Cap Assembly Replacement 2-7

25 g. Replacement of Battey Cap O-ring. (Figure 2-7) 1. Remove. Turn Mode Switch to OFF. Unscrew battery cap (1) from the Electronics Module. Remove O-ring (2). 2. Install. Apply grease (Item 7, App. D) to O-ring (2) and wipe off excess. Reposition O-ring (2) in battery compartment of Electronic Module. Carefully screw battery cap (1) into Electronics Module housing until tight. Figure 2-7. Battery Cap O-ring Replacement 2-8

26 h. Replacement of Charge and Fire Switch Dust Boots (Figure 2-8) 1. Remove. Unscrew Charge S witch black dust boot (1) or Fire Switch red dust boot (2) from their respective modules. 2. Install. Screw Charge Switch black dust boot (1) on to Electronics Module charge switch and tighten securely. Screw Fire Switch red dust boot (2) on to Laser Module fire switch and tighten securely. NOTE C/VAM Module need not be removed as shown in illustration Figure 2-8. Charge and Fire Switch Dust Boot Replacement Change 1 2-9

27 i. Replacement of C/VAM Mode Switch Knob (Figure 2-9) 1. Remove. Remove battery. Turn knob (2) for access to set screws (l). Loosen set screws (l). Full knob (2) off shaft. 2. Install. Loosen set screws (1) in knob (2), position knob on shaft to align with set screw opposite knob pointer. Tighten set screws (1) so that knob (2) cannot be pulled from the shaft. Figure 2-9. C/VAM Module Mode Switch Replacement 2-10 Change 1

28 TM ll &p Chapter 3 DIRECT SUPPORT MAINTENANCE 3-1 Scope of Direct Support Maintenance. Section I. General Direct support maintenance consists of troubleshooting, replacement of major modules (Laser, Optics, Electronics and C/VAM), and module gaskets on the MLRF. 3-2 Authorized Maintenance. Authorized direct support maintenance is listed in the Maintenance Allocation Chart (MAC) Appendix B. Section II. Repair Parts, Special Tools and TMDE Requirements. 3-3 Tool Requirements. Tools required for direct support maintenance are contained in the MAC, Section III. Lubrication materials are not required. Repair parts are listed in Appendix C, Repair Parts and Special Tools List (RPSTL). 3-4 Troubleshooting. Section III. Troubleshooting a. This section provides troubleshooting procedures as a guide for locating and correcting malfunctions. Use of these procedures will reduce delays and maintenance downtime and will minimize unnecessary replacement of Modules. After locating a specific problem in the Symptom Index, complete identified procedure to correct the problem. When a replacement is performed, you must demonstrate that the original problem has been corrected by performing an operational check. b. Troubleshooting of the MLRF is done while observing the display and attempting to range to a target at a distance of 50 meters or greater. Follow the test steps in the Symptom Index Table 3-1 to determine the symptoms. Match the number in the procedure column with the procedure in the Troubleshooting Procedures, Table 3-2, for probable cause and corrective action. Change 1 3-1

29 TM 1l &P TEST STEP 1) Insert known good battery. 2) Pull and turn Mode Switch to TEST (PULL) position. 3) Press the Charge Switch. TABLE 3-1 SYMPTOM INDEX SYMPTOM INDEX SYMPTOM TROUBLESHOOTING PROCEDURE NO. 4) Observe that Range Display elements NO DISPLAY 1 and indicators are lit. SOME BUT NOT ALL 2 ELEMENTS LIT (If display goes out, press Charge DISPLAY BLINKS 3 Switch.) CONTINUOUSLY 5) Press the Fire Switch (To insure Laser discharges) 6) Pull and turn Mode Switch to FIRST RTN position. 7) Press Charge Switch. 8) Wait three seconds, observe Ready READY INDICATOR 4 Indicator lights in eyepiece display. DOES NOT LIGHT 9) When Ready Indicator lights, select target at a distance 50 meters or greater. 10) Place aiming circle on target, press and hold Fire Switch. 11) Observe display for range value while RANGE VALUE 5 keeping the Fire Switch pressed. REMAINS ZEROES 12) Observe that the display does not go DISPLAY GOES OUT 6 out immediately when Fire Switch is IMMEDIATELY AND pressed. UNIT SHUTS DOWN 13) Release Fire Switch and observe that DISPLAY DOES NOT GO 7 display goes out after five seconds and OUT AND UNIT DOES unit shuts down. NOT SHUT DOWN 14) Press Charge Switch. Pull Reticle NO RETICLE ILLUMI- 8 Control and rotate to check the NATION OR RETICLE illumination variabilty (if area is BRIGHTNESS CANNOT brightly lit, illuminated reticle may be BE CONTROLLED difficult to see; press lens cap over the objective lens and laser window). 3-2 Change 1

30 TM 1l &P TEST STEP SYMPTON INDEX SYMPTOM TROUBLESHOOTING PROCEDURE NO. 15) Push Reticle Control Knob to off RETICLE 9 ILLUMINATION DOES NOT TURN OFF 16) Set the C/VAM Mode Switch to C/VAM 17) Press Charge Switch NO STANDBY DISPLAY 10 FAIL IS DISPLAYED 11 18) Press Fire Switch NO AZ OR VAM 12 DISPLAY 19) Set C/VAM Mode Switch to ZERO 20) Perform C/VAM Mode zeroing CONTINUOUS LEFT TO 13 procedure. RIGHT TO LEFT (TM ) DASHES DISPLAYED 21) When operating C/VAM in ZERO or CONSISTENT FAIL 14 DEC mode and a FAIL is displayed, INDICATION repeat the applicable operating procedure. 22) When operating the C/VAM in DEC DECLINATION ADJUST 15 mode and the declination cannot be MODE DOES NOT entered or you cannot toggle between OPERATE OR CANNOT degrees and roils TOGGLE BETWEEN DEGREES AND MILS 23) FOllOW shutdown procedure. (TM ) Change 1 3-3

31 TM 1l &P SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE (1) NO DISPLAY a. Mode Switch in OFF a. PULL and Turn Mode position Switch to TEST b. Battery installed improperly b. Install battery correctly c. Optics Module defective c. Test at Ready test point (between pin 3, common, and pin 14, see Figure 3-l), press Charge Switch with probes connected IF 5 Vdc at test point - Replace Optics Module (para 3-5c) d. Electronics Module d. NO 5 Vdc at test point - defective Replace Electronics Module (para 3-5a) (2) SOME BUT NOT ALL a. Optics Module defective a. Replace Optics Module RANGE DISPLAY (para 3-5c) ELEMENTS AND INDICATORS LIT (3) DISPLAY BLINKS a. Low battery a. Replace with known good CONTINUOUSLY battery b. Electronics Module b. Replace Electronics Module defective (para 3-5a) (4) READY INDICATOR a. Charge Switch not pressed a. Press Charge Switch DOES NOT LIGHT b. Three seconds have not b. Wait three seconds after elapsed pressing Charge Switch c. Laser Module defective c. Test at Ready test point (between pin 3, common, and pin 14, see Figure 3-1), press Charge Switch with probes connected NO 5 Vdc at test point - Replace Laser Module (para 3-5b) 3-4 Change 1

32 SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE (5) RANGE VALUE REMAINS a. Laser Module defective a. Hold IR Sensor Card (white - ZEROES side) about one inch away from laser window and press Charge Switch When ready indicator lights, observe IR Sensor Card, press Fire Switch If fluorescent spot does not appear on IR Sensor Card - Replace Laser Module (para 3-5b) b. Optics Module defective b. If fluorescent spot appears on IR Sensor Card - Replace Optics Module (para 3-5c) (6) DISPLAY GOES OUT a. Optics Module defective a. Replace Optics Module IMMEDIATELY AND UNIT (para 3-5c) SHUTS DOWN (7) DISPLAY DOES NOT GO a. Electronics Module a. Replace Electronics Module OUT AND UNIT DOES defective (para 3-5a) NOT SHUT DOWN (8) NO RETICLE a. Charge Switch not pressed a. Ress Charge Switch before ILLUMINATION OR pulling Reticle Control RETICLE BRIGHTNESS Knob and turning CANNOT BE CONTROLLED b. Reticle Control not pulled b. Pull Reticle Control and and turned to light reticle turn to illuminate reticle c. Reticle Illuminate timed out c. Press Charge Switch to after eight seconds reilluminate reticle 3-5 Change 1

33 SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE d. Electronics Module d. Remove Electronics defective Module - (para 3-5a) Test the resistance from P1, pin 13 to Chassis (see Figure 3-2) With the Reticle Switch pushed in, the resistance should be infinite; if not, replace Electronics Module - (para 3-5a) With Reticle Switch pulled out and turned fully clockwise, the resistance should measure 350 to 430 ohms and with the Reticle Control turned fully counterclockwise, the resistance should be 4850 to 5930 ohms; if not, replace Electronics Module (para 3-5a) e. Optics Module defective e. Replace Optics Module (para 3-5c) 9) RETICLE ILLUMINATION a. Electronics Module a. Replace Electronics Module DOES NOT TURN OFF defective (para 3-5c) 3-6 Change 1

34 SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE 10) NO STANDBY DISPLAY a. C/VAM Mode Switch in a. Turn C/VAM Mode Switch OFF position to C/VAM b. Charge Switch not pressed b. Press Charge Switch c. C/VAM Module defective c. Test at Compass 24 Vdc test point (between J4, pin 14 and pin 15, common see Figure 3-2a) if 24 Vdc is present, replace C/VAM Module (para 3-5f) d. Electronics Module d. If 0 Vdc at Compass 24 defective Vdc test point, remove Electronic Module and test for continuity (between J4 pin 14 and Jl, pin 8), if continuity is present, replace Electronic Module (para 3-5a) e. Optic Module defective e. If open, replace Optics Module (para 3-5c) 11) FAIL IS DISPLAYED a. C/VAM Module defective a. Remove C/VAM Module (para 3-5f) Test for continuity (between J4, pin 18 and pin 15 common see Figure 3-2a) when Charege switch is pressed. If continuity changes replace C/VAM Module (para 3-5f) b. Electronics Module b. If no Change, remove defective Electronics Module (para 3-5a) Test for continuity (between J4, pin 18 and Jl, pin 11) IF continuity is present, replace Electronics Module (para 3-5a) Change 1 3-7

35 SYMPTOM PROBABLE CAUSE CORRECTIVE MEASURE c. Optics Module defective c. If open,, replace Optics Module (para 3-5c) 12) NO AZ/VAM DISPLAY a. C/VAM Module defective a. Remove C/VAM Module (para 3-5f) Test for ground or open (between J4, pin 16 and pin 15, common) when Fire Switch is pressed and held If continuity changes, replace C/VAM Module (para 3-5f) b. Laser Module defective b. IF no change, remove Laser Module (para 3-5b) Test for continuity (between J4, pin 16 and J2, pin 21) IF continuity is present, replace Laser Module (para 3-5b) c. Optics Module defective c. If dashes continue longer than 5 minutes, replace (13) CONTINUOUS LEFT TO a. C/VAM Module defective a. C/VAM Module (para 3-5f) RIGHT TO LEFT DASHES DISPLAYED Replace C/VAM Module (para 3-5f) (14) CONSISTENT FAIL a. C/VAM Module defective a. Replace C/VAM Module INDICATION ( para 3-5f) (15) DECLINATION ADJUST a. C/VAM Module defective a. Replace C/VAM Module MODE DOES NOT (para 3-5f) OPERATE OR CANNOT TOGGLE BETWEEN DEGREES AND MILS 3-8 Change 1

36 Figure 3-1. Front View of Test Connector. 3-9 Change 1

37 Figure 3-2. Electronics Module Test Locations Change 1

38 Figure 3-2A C/VAM Test Locations. Change l 3-11

39 Section IV. Maintenance Instructions INITIAL SETUP Tools Personnel Required: 1 Tool Kit, Electronic System Maintenance 3-5 Maintenance Procedures. Direct support maintenance of the MLRF consists of removing and replacing the major Modules (Electronics, Optics, Laser, and C/VAM Modules) and replacing the gasket between the Electronics Module and the Optics Module. Refer to TM for replacement of battery and neck strap. a. Replace Electronics Module (Figure 3-3) CAUTION Pull Electronics Module straight away from Optics Module to avoid damage to connector pins. 1. Remove Electronics Module. Turn Mode Switch to OFF. Unscrew battery cap, remove battery, and replace battery cap. Remove neck strap from Electronics Module. Remove six socket head screws (1) and six flat washers (2). Inspect screws, replace if damaged. Pull the Electronics Module (3) away from the Optics Module (5) until connector disengages. 2. Inspect gasket. Inspect gasket (4) and replace if damaged (para 3-5d). NOTE C/VAM Module need not be removed as shown in illustration. Figure 3-3. Electronics Module Replacement Change 1

40 3. Install Electronics Module. Replace Electronics Module (3). Align connectors and press Electronics Module (3) until connector is properly seated. Install six socket head screws (1) and six flat washers (2). Apply chemical agent resistant coating (Item 8, App. D) to thoroughly coat heads of six socket head screws (1). Install neck strap. Replace battery. b. Replace Laser Module (Figure 3-4) WARNING Do not remove eight Phillips head screws securing housing of Laser Module to base plate because dangerous voltages can exist on high voltage capacitor in this module, even after battery is disconnected which could cause personal injury. 1. Remove Laser Module. Turn Mode Switch to OFF. Unscrew battery cap and remove battery. Temporarily replace battery cap. Rotate lens cap away from objective lens and laser window. Remove neck strap from Laser Module. Remove six socket head screws (1) and six flat washers (2). Inspect screws, replace if damaged. Pull Laser Module (3) away from Optics Module (6) until connector disengages. 2. Inspect Safety Switch. Inspect Safety Switch (4) of replacement Laser Module, if plunger does not extend above top surface, replace Laser Module. 3. Clean To Windows. Inspect To windows (5) and clean if necessary by dampening a folded lens cleaning tissue with lens cleaning compound (Item 3 and 4, App. D). Lightly and slowly wipe To windows (5), after one stroke discard tissue, repeat this procedure until both windows are clean. NOTE C/VAM Module need not be removed as shown in illustration. Figure 3-4. Laser Module Replacement Change 1

41 4. Install Laser Module. Replace Laser Module (3). Align connectors and pin, press modules together carefully. Install six socket head screws (1) and six washers (2). Apply chemical agent resistant coating (Item 8, App. D) to heads of six socket head screws (l). Replace battery. Install neck strap. Rotate lens cap. c. Replace Optics Module (Figure 3-5) 1. Remove Optics Module. Turn Mode Switch to off. Unscrew battery cap, remove battery, and replace battery cap. Do not remove neck strap. Remove Electronics Module (1) (para 3-5a). Remove Laser Module (4) (para 3-5b). Remove C/VAM Module (para 3-5f) 2. Inspect gasket. Inspect gasket (2). Replace if damaged (para 3-5d). 3. Install Optics Module. Replace Optics Module (3). Install Electronics Module (1) (para 3-5a). Install Laser Module (4) (para 3-5b). Install C/VAM Module (para 3-5f). Figure 3-5. Optics Module Replacement Change 1

42 d. Inspect and Replace Gasket (Figure 3-6) WARNING Acetone Keep away from heat, sparks and flames. Use with adequate ventilation. Avoid prolonged or repeated contact with skin to prevent personal injury. Keep container closed when not in use. 1. Inspect Gasket. When Electronics Module (1) is removed from Optics Module (3), inspect gasket (2) for damage. Replace if damaged. 2. Remove. Remove old gasket off housing. Clean surface of housing using a clean cloth and acetone (Item 5, App. D). 3. Install Electronics Module Gasket. Apply a thin layer of grease (item 7, App. D) to both surfaces of gasket (2). Align gasket even with outside edge of Optics Module housing. Press gasket (2) firmly into place on the Optics Module housing. NOTE C/VAM Module need not be removed as shown in illustration Figure 3-6. Inspect/Replace Gasket. Change

43 TM 1l &P e. Replacement of Test Connector Cover and Gasket. (Figure 3-7) 1. Remove. Remove two screws (3) from test connector cover (2). Lift cover from connector. Remove gasket (l). Inspect and replace screws (3) and gasket (1) if damaged. 2. Install. Apply grease (Item 7, App. D) to smooth surface of gasket (1) and mating surface of housing. Install gasket with smooth surface adjacent to housing. Align test connector cover (2), countersink up, over screw holes in gasket (1) and connector. Insert screws (3) through test connector cover (2) and gasket (l), screw into MLRF. NOTE C/VAM Module need not be removed as shown in illustration OPTICS MODULE Figure 3-7. Test Connector Cover Replacement Change 1

44 f. Replace C/VAM Module. (Figure 3-8) 1. Remove. Turn Mode Switch to off. Unscrew battery cap, remove battery, replace battery cap. Do not remove neck strap. Remove four captive screws (1) that attach C/VAM Module (2) to Optics Module (3). Lift C/VAM Module from Optics Module. Inspect gasket and screws, replace if damaged. 2. Install. Use a clean cloth to clean mounting surface of the Optics Module. Position C/VAM Module (2) on top of Optics Module (3), ensuring that module connector mates properly. Tighten four screws (l). Figure 3-8. C/VAM Module Replacement Change 1

45 3-6 Purging Procedures - Deleted 3-18 Change 1

46 TM 1l &P Appendix A REFERENCES The technical manuals listed below are for the Unit and Direct Support maintenance of the AN/PVS-6, MELIOS. DA Pam DA Pam DOD Handbook M TM TM TM Consolidated Index of Army Publications and Blank Forms The Army Maintenance Management System (TAMMS) Defense Demilitarization Manual Operator s Manual for the AN/PVS-6 MELIOS Operator And Organizational Maintenance Manual, Battery Charger PP-7286/U Procedures for Destruction of Materiel to Prevent Enemy Use Change 1 A-l(A-2 blank)

47 Appendix B MAINTENANCE ALLOCATION CHART Section I. Introduction B-1. General. This section provides a summary of the maintenance operations for the AN/PVS-6. It authorizes levels of maintenance for specific maintenance functions on repairable items and components and the tools and equipment required to perform each function. This appendix may be used as an aid in planning maintenance operations. B-2. Maintenance Function. Maintenance functions will be limited to and defined as follows: a. Inspect. To determine the serviceability of an item by comparing its physical, mechanical and/or electrical characteristics with established standards through examination. b. Test. To verify serviceability and detect incipient failure by measuring the mechanical or electrical characteristics of an item and comparing those characteristics with prescribed standards. c. Service. Operations required periodically to keep an item in proper operating condition, i.e., to clean (decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic fluids, or compressed air supplies. d. Adjust. To maintain, within prescribed limits, by bringing into proper or exact positiong or by setting the operating characteristics to the specified parameters. e. Align. To adjust specified variable elements of an item to bring about optimum or desired performance. f. Calibrate. To determine and cause connections to be made or to be adjusted on instruments or test measuring and diagnostic equipments used in precision measurement. Consists of comparisons of two instruments, one of which is a certified standard of known accuracy, to detect and adjust any discrepancy in the accuracy of the instrument being compared. g. Install. The act of emplacing, seating, or fixing into position an item, part or module (component or assembly) in a manner to allow the proper functioning of the equipment or system. h. Replace. The act of substituting a serviceable like type part subassembly, or module (component or assembly) for an unserviceable counterpart. i. Repair. The application of maintenance services (inspect test service, adjust, align, calibrate, replace) or other maintenance actions (welding, grinding, riveting, straightening, facing, remachining, or resurfacing) to restore serviceability to an item by correcting specific damage, fault, malfunction or failure in a part, subassembly, module (component or assembly), end item, or system. B-1

48 j. Overhaul. That maintenance effort (service/action) necessary to restore an item to a completely serviceable/operational condition as prescribed by maintenance standards (i.e., DMWR) in appropriate technical publications. Overhaul is normally the highest degree of maintenance performed by the Army. Overhaul does not normally return an item to like new condition. k. Rebuild. Consists of those services/actions necessary for the restoration of unserviceable equipment to a like new condition in accordance with original manufacturing standards. Rebuild is the highest degree of material maintenance applied to Army equipment. The rebuild option includes the set of returning to zero those age measurements (hours, miles, etc.) considered in classifying Army equipments/components. B-3. Column Entries. a. Column 1, Group Number. Column 1 lists group numbers, the purpose of which is to identify components, assemblies, subassemblies, and modules with the next higher assembly. b. Column 2, Component/Assembly. Column 2 contains the noun names of components, assemblies, subassemblies, and modules for which maintenance is authorized. c. Column 3, Maintenance Functions. Column 3 lists the functions to be performed on the item listed in column 2. When items are listed without maintenance functions, it is solely for purpose of having the group numbers in the MAC and RPSTL coincide. d. Column 4, Maintenance Level. Column 4 specifies, by the listing of a work time figure in the appropriate subcolumm(s), the lowest level of maintenance authorized to perform the function listed in column 3. This figure represents the active time required to perform that maintenance function at the indicated level of maintenance. If the number or complexity of the tasks within the listed maintenance function vary at different maintenance levels, appropriate work time figures will be shown for each level. The number of task-hours specified by the work time figure represents the average time required to restore an item (assembly, subassembly, component module, end item or system) to a serviceable condition under typical field operating conditions. This time includes preparation time, troubleshooting time, and quality assurance/quality control time in addition to the time required to perform the specific tasks identified for the maintenance functions authorized in the maintenance allocation chart. Subcolumns of column 4 are as follows: Unit C - Operator/Crew 0 - Organizational F - Direct Support H - General Support D - Depot e. Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not individual tools) and special tools, test, and support equipment required to perform the designated function. f. Column 6, Remarks. Column 6 contains an alphabetic code which leads to the remark in section IV, Remarks, which is pertinent to the item opposite the particular code. B-2

49 TM 1l &P B-4. Tool and Test Equipment Requirements (Sect. III). a. Tool or Test Equipment Reference Code. The numbers in this column coincide with the numbers used in the tools and equipment column of the MAC. The numbers indicate the applicable tool or test equipment for the maintenance functions. b. Maintenance Level. The codes in this column indicate the maintenance level allocated the tool or test equipment. c. Nomenclature. This column lists the noun name and nomenclature of the tools and test equipment required to perform the maintenance functions. d. National/NATO Stock Number. This column lists the National/NATO stock number of the specific tool or test equipment. e. Tool Number. This column lists the manufacturers part number of the tool followed by the Federal Supply Code for manufacturers (5-digit) in parentheses. B-5. Remarks (Sect. IV). a. Reference Code. This code refers to the appropriate item in section II, column 6. b. Remarks. This column provides the required explanatory information necessary to clarify items appearing in section II. B-3

50 TM 1l &P Section II. Maintenance Allocation Chart for AN/PVS-6 (1) GROUP NUMBER (2) COMPONENT ASSEMBLY (3) MAINTENANCE FUNCTION ~ (4) (5) MAINTENANCE LEVEL TCQL s AND EQPT. REF. CODE unit [)s (is DEPo T () F H D (6) REMARK s CODE MELIOS AN/Pvs-6 MELIOS Laser Rangefinder Optics Module Inspect Service Service Repair Replace Repair Test Repair Repair ,3, ,3, ,6 A B c A,D D E 0102 Laser Module Repair Repair 0.4 2,3, ,6 D F 0103 Electronic Module Repair 0.4 2,3,4 D 0104 C/VAM Module Repair 0.4 2,3,4 D 02 Carrying Case Repair 0.1 G I I I I 1 I B-4 Change 1

51 TM &P SECTION III. TOOL AND TEST EQUIPMENT FOR AN/PVS-6 (1) (2) (3) (4) (5) TOOL OR MAINTENANCE NOMENCLATURE NATIONAL TOOL TEST CATEGORY STOCK NUMBER NO. EQUIPME NT REF. CODE 1 O TOOL KIT,ELECTRONIC EQUIPMENT TK-101/G 2 F TOOL KIT,ELECTRONIC: SYSTEM MAINTENANCE 3 F MULTIMETER,AN/PSM-45A F IR SENSOR D PURGING KIT,FIRE CONTROL 6 D DEPOT FACILITIES (TO BE DETERMINED) CHANGE 1 B-5

52 Section IV. Remarks for AN/PVS-6 REFEREN CE CODE A B C D REMARKS Service to include purging after module replacement and periodically thereafter every 180 days has been deleted, all purging will be performed at depot. Repair by replacing: MLRF, A TRIPOD ASSY, A CARRYING CASE, A SHIPPING CASE, A Repair by replacing: BATTERY, BA-6516/U, or BA-516/U NECK STRAP, A CAP, LENS A PLUG, EYESHIELD A EYESHIELD ASSY, A RETAINER, LANYARD ASSY A CAP, BATTERY A O-RING, BATTERY MS KNOB, MODE SWITCH MS91528-OP3P KNOB, RETICLE CONTROL MS91528-ON3B BOOT, DUST, BLACK (CHARGE SWITCH) M5423/10-02BLK BOOT, DUST, RED (FIRE SWITCH) M5423/10-02RED Repair by replacing: OPTICS MODULE, A LASER MODULE, A ELECTRONICS MODULE, A GASKET, ELECTRONIC, A COVER, TEST CONNECTOR A GASKET, TEST CONNECTOR A C/VAM MODULE, A B-6 Change 1

53 REFERENCE CODE REMARKS E F G Repair by replacing: EYEPIECE ASSY, A PRISM CLUSTER ASSY, A OBJECTIVE LENS ASSY, A RANGE COUNTER ASSY, A FLEX CIRCUIT, OPTICS MODULE, ASSY. A GASKET, TEST A GASKET, LASER A GASKET, E BOX A GASKET, COMPASS A COVER, SIDE A GASKET, SIDE COVER A COVERq PROTECITVE A GASKET, PROTECTIVE COVER A Repair by replacing HOUSING ASSY, A LASER CAVITY ASSY, A MIRROR ASSY, A OBJECTIVE ASSY, A PORRO PRISM ASSY, A FLEX CIRCUIT, LASER MODULE, ASSY. A GASKET, LASER MODULE A SEAL, O-RING A Repair by replacing SHOULDER STRAP, A B-7(B-8 blank)

54 Appendix C UNIT AND DIRECT SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST SECTION I. INTRODUCTION 1. Scope. This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement, and diagnostic equipment (TMDE); and other special support equipment required for performance of unit and direct support maintenance of the AN/PVS-6 Mini Eyesafe Laser Infrared Observation Set (MELIOS). It authorizes the requisitioning, issue, and disposition of spare, repair parts and special tools as indicated by the source, maintenance and recoverability (SMR) codes. 2. General. In addition to Section I, Introduction, this Repair Parts and Special Tools List is divided into the following sections: a. Section II. Repair Parts List. A list of spares and repair parts authorized by this RPSTL for use in the performance of maintenance. The list also includes parts which must be removed for replacement of the authorized parts. Parts lists are composed of functional groups in ascending alphanumeric sequence, with the parts in each group listed in ascending figure and item number sequence. Bulk materials are listed in item name sequence. Repair parts kits are listed separately in their own functional group within Section II. Repair parts for repairable special tools are also listed in this section. Items listed are shown on the associated illustration(s)/figure(s). b. Section III. Special Tools List. A list of special tools, special TMDE, and other special support equipment authorized by this RPSTL (as indicated by Basis of Issue (BOI) information in DESCRIPTION AND USABLE ON CODE column) for the performance of maintenance. c. Section IV. Cross-reference index. A list, in National Item Identification Number (NIIN) sequence, of all National stock numbered items appearing in the listing, followed by a list in alphanumeric sequence of all part numbers appearing in the listings. National stock numbers and part numbers are cross-referenced to each illustration figure and item number appearance. The figure and item number index lists figure and item numbers in alphanumeric sequence and cross-references NSN, CAGE and part numbers. 3. Explanation of Columns (Sections II and II). a. ITEM NO. (Column (1)). Indicates the number used to identify items called out in the illustration. C-1

55 b. SMR CODE (Column (2)). The Source, Maintenance, and Recoverability (SMR) code is a 5-position code containing supply/requisitioning information, maintenance category authorization criteria, and disposition instruction, as shown in the following breakout: * Complete repair: Maintenance capacity, capability, and authority to perform all corrective maintenance tasks of the "Repair" function in a use/user environment in order to restore serviceability to a failed item. (1) Source Code. The source code tells you how to get an item needed for maintenance, repair, or overhaul of an end item/equipment. Explanations of source codes follows: Code PA PB PC** PD PE PF PG > Explanation Stocked items; use the applicable NSN to request/ requisition items with these source codes. They are authorized to the category indicated by the code entered in the 3d position of the SMR code. ** NOTE: Items coded PC are subject to deterioration. KD KF KB Items with these codes are not to be requested/ requisitioned > individually. They are part of a kit which is authorized to the maintenance category indicated in the 3d position of the SMR code. The complete kit must be requisitioned and applied. C-2

56 Code Explanation MO- (Made at org/ AVUM Level) MF- (Made at DS/ AVUM Level) MH- (Made at GS Level) ML- (Made at Specialized Repair Act (SRA)) MD- (Made at Depot) > Items with these codes are not to be requested/requisitioned individually. They must be made from bulk material which is identified by the part number in the DESCRIPTION AND USABLE ON CODE (UOC) column and listed in the Bulk Material group of the repair parts list in this RPSTL. If the item is authorized to you by the 3d position code of the SMR code, but the source code indicates it is made at a higher level, order the item from the higher level of maintenance.. AO- (Assembled by org/avum Level) AF- (Assembled by DS/AVUM Level) AH- (Assembled by GS Category) AL- (Assembled by SRA) AD- (Assembled by Depot) > Items with these codes are not to be requested/requisitioned individually. The parts that make up the assembled item must be requisitioned or fabricated and assembled at the level of maintenance indicated by the source code. If the 3d position code of the SMR code authorizes you to replace the item, but the source code indicates the item is assembled at a higher level, order the item from the higher level of maintenance. XA - XB - XC - XD - Do not requisition an "XA"-coded item. Order its next higher assembly. (Also, refer to the NOTE below.) If an XB item is not available fimm salvage, order it using the CAGE and part number given. Installation drawing, diagram instruction sheet, field service drawing, that is identified by manufacturer s part number. Item is not stocked. Order an XD -coded item through normal supply channels using the CAGE and part number given, if no NSN is available. NOTE: Cannibalization or controlled exchange, when authorized maybe used as a source of supply for items with the above source codes, except for those source coded XA or those aircraft support items restricted by requirements of AR (2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and REPAIR auppmt items. The maintenance codes are entered in the third and fourth positions of the SMR code as follows: (a) The maintenance code entered in the third position tells you the lowest maintenance level authorized to remove, replace, and usc an item. The maintenance code entered in the third position will indicate authorization to one of tbe following levels of maintenance. C-3

57 Code C O F H L D Application/Explanation -Crew or operator maintenance done within organizational or aviation unit maintenance. -Organizational or aviation unit category can remove, replace, and use the item. -Direct support or aviation intermediate level can remove, replace, and use the item. -General support level can remove, replace, and use the item. -Specialized level can remove, replace, and use the item. -Depot level can remove, replace, and use the item. (b) The maintenance code entered in the fourth position tells whether or not the item is to be repaired and identifies the lowest maintenance level with the capability to do complete repair (i.e., perform all authorized repair functions). (NOTE: Some limited repair may be done on the item at a lower level of maintenance, if authorized by the Maintenance Allocation Chart (MAC) and SMR codes.) This position will contain one of the following maintenance codes. Code O F H L D Z Application/Explanation -Organizational or (aviation unit) is the lowest level that can do complete repair of the item. -Direct support or aviation intermediate is the lowest level that can do complete repair of the item. -General support is the lowest level that can do complete repair of the item. -Specialized repair activity (designate the specialized repair activity) is the lowest level that can do complete repair of the item. -Depot is the lowest level that can do complete repair of the item. -Nonreparable. No repair is authorized. C-4

58 B -No repair is authorized. (No parts or special tools are authorized for the maintenance of a B coded item.) However, the item may be reconditioned by adjusting, lubricating, etc., at the user level. (3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action on unserviceable items. The recoverability code is entered in the fifth position of the SMR Code as follows: Recoverability Code Z O F H D L A Application/Explanation -Nonreparable item. When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3d position of SMR Code. -Reparable item. When uneconomically reparable, condemn and dispose of the item at organizational or aviation unit level. -Reparable item. When uneconomically reparable, condemn and dispose of the item at the direct support or aviation intermediate level. -Reparable item When uneconomically reparable, condemn and dispose of the item at the general support level. -Reparable item. When beyond lower level repair capability, return to depot. Condemnation and disposal of item not authorized below depot level. -Reparable item. Condemnation and disposal not authorized below specialized repair activity (SRA). -Item requires special handling or condemnation procedures because of specific reasons (e.g., precious metal content high dollar value, critical material, or hazardous material). Refer to appropriate manuals/directives for specific instructions. c. CAGE (Column (3)). The Contractor and Government Entity (CAGE) is a 5-digit numeric code which is used to identify the manufacturer, distributor, or Govermnent agency, etc., that supplies the item. d. PART NUMBER (Column (4)). Indicates the primary number used by the manufacturer which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of items. C-5

59 NOTE: When you use a NSN to requisition an item, the item you receive may have a different part number from the part ordered. e. DESCRIPTION AND USABLE ON CODE (UOC) (Column (5)). This column includes the following information: (1) The Federal item name and, when required a minimum description to identify the item. (2) The statement END OF FIGURE appears just below the last item description in Column 5 for a given figure in both Section II and Section III. f. QTY (Column (6)). The QTY (quantity per figure column) indicates the quantity of the item used in the breakout shown on the illustration figure, which is prepared for a fictional group, subfimctionrd group, or an assembly. A V appearing in this column in lieu of a quantity indicates that the quantity is variable and the quantity may vary from application to application. 4. Explanation of Columns (Section IV). a. NATIONAL STOCK NUMBER (NSN) INDEX (1) STOCK NUMBER column. This column lists the NSN by National Item Identification Number (NIIN) sequence. The NIIN consists of the last nine digits of the NSN NSN (i.e., ). When using this column to locate an item ignore the first NIIN 4 digits of the NSN. However, the complete NSN should be used when ordering items by stock number. (2) FIG. column. This column lists the number of the figure where the item is identified located. The figures are in numerical order in Section II and Section III. (3) ITEM column. The item number identifies the item associated with the figure listed in the adjacent FIG. column. This item is also identified by the NSN listed on the same line. b. PART NUMBER INDEX. Part numbers in this index are listed by part number in ascending alphanumeric sequence (i.e., vertical arrangement of letter and number combination which places the fit letter or digit of each group in order A through Z, followed by the numbers 0 through 9 and each following letter or digit in like order). (1) CAGE column. The Contractor And Government Entity (CAGE) is a 5-digit numeric code used to identify the manufacturer, distributor, or Government agency, etc., that supplies the item. C-6

60 (2) PART NUMBER column. Indicates the primary number used by the manufacturer which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of items. (3) STOCK NUMBER column. This column lists the NSN for the associated part number and manufacturer identified in the PART NUMBER and CAGE columns to the left. (4) FIG. column. This column lists the number of the figure where the item is identified located in Section II and III. (5) ITEM column. The item number identifies the item associated with the figure listed in the adjacent FIG. column. This item is also identified by the NSN listed on the same line. c. FIGURE AND ITEM NUMBER INDEX (1) FIG. column. This column lists the number of the figure where the item is identified located. The figures are in numerical order in Section II and XII. (2) ITEM column. The item number is that number assigned to the item as it appears in the figure referenced in the adjacent FIG. column. (3) CAGE column. The Contractor And Government Entity (CAGE) is a 5-digit numeric code used to identify the manufacturer, distributor, or Government agency, etc., that supplies the item. (4) PART NUMBER column. Indicates the primary number used by tie manufacturer which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of items. 5. Special Information. a. USABLE ON CODE. The usable on code appears in the lower left comer of the Description column heading. Usable on codes are shown as UOC:..." in the Description column (justified left) on the first line applicable to the item description/nomenclature. Uncoded items are applicable to all models. Identification of the usable on codes in the RPSTL are: Code JEH Used on AN/PVS-6 C-7

61 b. ASSOCIATED PUBLICATIONS. The publication(s) listed below pemain to the MELIOS AN/PVS-6 and its components. Publication TM Short Title Operator s Manual 6. How to Locate Repair Parts a. When National Stock Number or Part Number is Not Known. (1) (First). Using the table of contents, determine the assembly group or subassembly group to which the item belongs. This is necessary since figures are prepared for assembly groups and subassembly groups, and listings are divided into the same groups. (2) (Second). Find the figure covering the assembly group or subassembly group to which the item belongs. (3) (Third). Identify the item on the figure and note item number. (4) (Fourth). Refer to the Repair Parts List for the figure to find the part number for the item number noted on the figure. (5) (Fifth). Refer to the Part Number Index to find the NSN, if assigned. b. When National Stock Number or Part Number is Known: (1) (First). Using the Index of National Stock Numbers and Part Numbers, find the pertinent National Stock Number or Part Number. The NSN index is in National Item Identification Number (NIIN) sequence (see 4a). The part numbers in the Part Number index are listed in ascending alphanumeric sequence (see 4.b). Both indexes cross-reference you to the illustration figure and item number of the item you are looking for. (2) (Second). After finding the figure and item number, verify that the item is the one you re looking for, then locate the item number in the repair parts list for the figure. C-8(C-9 blank)

62 TM 1l &P SECTION II Figure 1. Mini Eyesafe Infrared Observation Set (MELIOS) AN/PVS-6

63 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 00 MINI EYESAFE LASER INFRARED OBSERVATION SET (MELIOS) AN/PVS-6 FIGURE 1 1 XBODD A LASER RANGEFINDER (SEE FIGURE 2 1 FOR PARTS BREAKDOWN) 2 PAOZZ A TRIPOD,LASER-INFRAR 1 3 PAOOO A CASE,LASER RANGE (SEE FIGURE 7 FOR 1 PARTS BREAKDOWN) 4 PAOZZ A SHIPPING AND STORAG 1 END OF FIGURE 1-1

64 TM &P SECTION II Figure 2. Laser Rangefinder - MELOIS

65 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 01 LASER RANGEFINDER-MELIOS FIGURE 2 1 PAFDD A LASER MODULE (SEE FIGURE 4 FOR 1 PARTS BREAKDOWN) 2 PAFZZ NAS620C6 WASHER,FLAT 6 3 PAOZZ MS B SCREW,CAP,SOCKET HE 6 4 PACZZ A STRAP,WEBBING 1 5 PAFDD A OPTICS MODULE (SEE FIGURE 3 FOR 1 PARTS BREAKDOWN) 6 PCFZZ A SHIELDING GASKET,EL 1 7 PAFFF A ELECTRONIC MODULE (SEE FIGURE 5 1 FOR PARTS BREAKDOWN) 8 PAFZZ MS B SCREW,CAP,SOCKET HE 6 9 PAFZZ WASHER,FLAT 6 10 PAFFF A MODULE ASSY, C/VAM (SEE FIGURE 6 1 FOR PARTS BREAKDOWN) END OF FIGURE 2-1

66 SECTION II Figure 3. Optics Module

67 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 0101 OPTICS MODULE FIGURE 3 1 PAFZZ GASKET 1 2 PAFZZ A COVER,ACCESS 1 3 PAFZZ MS B SCREW,MACHINE 2 4 PAFZZ MS SCREW,MACHINE 1 5 PAFZZ MS SCREW,MACHINE 1 6 XBOZZ A FIBER ROPE ASSEMBLY 1 7 PAOZZ MS B WASHER,FLAT 1 8 PAOZZ MS B SCREW,MACHINE 1 9 PAOZZ MS NUT,PLAIN,HEXAGON 1 10 PAOZZ AN960C4 WASHER,FLAT 2 11 PAOZZ A CAP,LENS MOUNTING 1 12 PAOZZ MS SCREW,MACHINE 1 13 PAOZZ A EYESHIELD,OPTICAL 1 END OF FIGURE 3-1

68 SECTION II Figure 4. Laser Module

69 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 0102 LASER MODULE FIGURE 4 1 PAFZZ MS SCREW,MACHINE 1 2 PAFZZ NAS1515D08L WASHER,FLAT 1 3 PAOZZ A CAP,LENS 1 4 PAOZZ NAS43DD0-16FC SPACER,SLEEVE 1 5 PAOZZ AN960XC4 WASHER,FLAT 1 6 PAOZZ MS B SCREW,MACHINE 1 7 PAFZZ MS SCREW,MACHINE 1 8 PAFZZ NAS1515D06L WASHER,FLAT 1 9 XBOZZ A BOOT 1 END OF FIGURE 4-1

70 SECTION II Figure 5. Electronics Module

71 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 0103 ELECTRONICS MODULE FIGURE 5 1 PAOZZ MS N3B KNOB 1 2 PAOZZ MS P3B KNOB 1 3 PAOZZ MS B WASHER,LOCK 2 4 PAOZZ MS B WASHER,FLAT 2 5 PAOZZ MS B SCREW,MACHINE 1 6 XBOZZ A FIBER ROPE ASSEMBLY 1 7 PAOZZ MS B SCREW,MACHINE 1 8 PAOZZ A FILLER CAP,BATTERY 1 9 PAOZZ MS PACKING,PREFORMED 1 10 XBOZZ A BOOT 1 END OF FIGURE 5-1

72 SECTION II Figure 6. C/VAM Module

73 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 0104 MODULE ASSY, C/VAM FIGURE 6 1 PAOZZ MS P3B KNOB 1 END OF FIGURE 6-1

74 SECTION II Figure 7. Carrying Case

75 SECTION II TM &P (1) (2) (3) (4) (5) (6) ITEM SMR PART NO CODE CAGEC NUMBER DESCRIPTION AND USABLE ON CODES (UOC) QTY GROUP 02 CASE,LASER RANGE FIGURE 7 1 PAOZZ A STRAP,WEBBING 1 END OF FIGURE 7-1

76 SECTION IV TM &P CROSS-REFERENCE INDEXES NATIONAL STOCK NUMBER INDEX STOCK NUMBER FIG ITEM STOCK NUMBER FIG ITEM I-1

77 SECTION IV TM &P CROSS-REFERENCE INDEXES PART NUMBER INDEX CAGEC PART NUMBER STOCK NUMBER FIG ITEM AN960C AN960XC A A A A A A A A A A A A A A A A A A A MS B MS B MS B MS MS MS B MS MS MS B MS B MS MS B MS MS B MS MS N3B MS P3B NAS1515D06L NAS1515D08L NAS43DD0-16FC NAS620C I-2

78 SECTION IV TM &P CROSS-REFERENCE INDEXES FIGURE AND ITEM NUMBER INDEX FIG ITEM STOCK NUMBER CAGEC PART NUMBER A A A A A NAS620C MS B A A A A MS B A A MS B MS MS A MS B MS B MS AN960C A MS A MS NAS1515D08L A NAS43DD0-16FC AN960XC MS B MS NAS1515D06L A MS N3B MS P3B MS B MS B MS B A MS B A MS A MS P3B A I-3

79 Appendix D EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST Section I. Introduction D-1 Scope. This appendix lists Expendable/Durable Supplies and Materials you will need to operate and maintain the Mini Eyesafe Laser Infrared Observation Set (MELIOS) AN/PVS-6. These items are authorized by CTA , Expendable/Durable Items (except Medical, Class V, Repair Parts, and Heraldic Items). D-2 Explanation of Columns. a. Item Number. This number is assigned to the entry in the listing and is referenced in the narrative instructions to identify the material (e.g. Use cleaning compound, Item 5, App. D ). b. Level. This column identifies the lowest level of maintenance that requires the item. C. National Stock Number. This is the National Stock Number assigned to the item; use it to request or requisition the item. d. Description. Indicates the Federal Item Name and, if required, minimum description to identify and locate the item. The last line of each item indicates the part number followed by the Commercial And Government Entity (CAGE) in parentheses, if applicable. e. Unit of Measure (U/M). Indicates the measure used in performing the actual operational/maintenance function. This measure is expressed by a two-character alphabetical abbreviation (e.g., ea., in., pr.). If the unit of measure differs from the unit of issue, requisition the lowest unit of issue that will satisfy your requirements. D-1

80 TM &P SECTION II. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST (1) (2) (3) (4) (5) PART NUMBER ITEM OR NO. LEVEL NATIONAL DESCRIPTION U/M STOCK NUMBER 1 0 A COMPOUND,STAKING OZ AND POTTING SEALING COMPOUND, OZ MIL-S TYPE II 3 C PAPER,LENS EA NNNP40 (81348) 4 C CLEANING COMPOUND OZ SM-B (80063) 5 F ACETONE,TECHNICAL OZ OA51 (81348) 6 O ADHESIVE,MIL-A OZ TYPE II,CLASS 3 7 O GREASE,LOW OZ VOLATILITY (19200) 8 F CHEMICAL AGENT GAL RESISTANT COATING, MIL-C FOREST GREEN SEALING COMPOUND, OZ MIL-S TYPE III GRADE R 10 C BATTERY, EA RECHARGABLE, BB-516/U D-2 CHANGE 1

81 GLOSSARY Charge Switch The Charge Switch connects the battery to the charging circuit. When the charging is completed, the Ready indicator displays (four) 8 s) in the eyepiece. The unit will shut down, if the Fire Switch is not pressed, eight seconds after the Charge Switch is pressed. Pressing the Charge Switch while in the TEST position will display four eights in the range display. Eyepiece Assembly Fire Switch Laser Assembly Objective Lens Assembly Output Collimator Optics Assembly Partial Mirror Assembly Prism Cluster Assembly Pulse Forming Network A set of lenses that images the target scene for the user s eye. When the Fire Switch is depressed, the laser fires and starts the timing circuit which stops when a return signal is received (either the fit return signal or the last return signal). The timing value is converted to a range in meters which is displayed in the eyepiece. The Fire Switch will keep the value displayed until it is released then the display will go out after five seconds. The Laser Assembly is made up of the Flashlamp, Laser Rod, Output Collimator and Optics Assembly. The Objective Lens Assembly focuses the visible and infrared light into the Optics Assembly. A set of lenses that expands the laser rod output to a larger diameter. The complete optical train in the laser beam path. Part of the optical train in the laser beam path. A set of prisms that divert the infrared energy from the visible light received. An electronic circuit that provides the high voltage pulse to the flashlamp. Glossary-1

82 Q-Switch Assembly Range Counter Module Receiver Module T 0 Pulse T 0 Window An optical shutter used for increasing the peak power of the laser pulse with extremely short pulsewidth. An electronic circuit that will time the signal return and provide a readout for the display. An electronic detector for the laser energy used to initiate timing by resetting the range counter circuit to zero. A portion of the laser output energy used to initiate timing by resetting the range counter circuit to zero. A glass filter that permits a portion of the laser beam (T O Pulse) to pass from the Laser Module to the Optics Module. Glossary-2

83 INDEX Description C/VAM Carrying Case Electronics Module Flashlamp Laser Module Lens Cleaning Compound Lens Cleaning Tissue MELIOS MLRF Optics Module Output Collimating Assembly Prism Cluster Pulse Forming Network (PFN) Range Counter Reticle Shipping Case Test Connector Tripod Gaskets Electronics Module Connector Cover Lubrication Maintenance Procedures Direct Support Unit PMCS Page Change 1 Index-1

84 Remove and replace Battery Cap Assembly Battery Cap O-Ring C/VAM Module Electronics Module Eyeshield Assembly Eyeshield Plug Gasket Laser Module Lens Cap Mode Switch Knob Optics Module Test Connector Cover and Gasket Service upon receipt S ymtom Index Troubleshooting Index-2 Change 1

85 By Order of the Secretary of the Army: GORDON R. SULLIVAN General, United States Amy Chief of Staff Official: MILTON H. HAMILTON Administrative Assistant to the Secretary of the Army Distribution: To be distributed in accordance with DA Form 12-36, block 9683, requirements for TM &P. U.S. GOVERNMENT PRINTING OFFICE: /00224

86