Technical Manual Canta 730/ /230 VC & Canta 730-OC/430-OC 730-D ITC
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1 Technical Manual Canta 730/ /230 VC & Canta 730-OC/430-OC 730-D ITC GN ReSound as Global Technical Operations gto.gnresound.com Lautrupbjerg 9 DK-2750 Ballerup Denmark Phone: Service@gnresound.dk
2 Subject Page Description... 3 Typical performance data ANSI/IEC Part No. lists Diagram Programming cable...11 Microphone and receiver complete Microphone 730-D Blank faceplates Prepare the faceplates Hybrid connections Faceplates fi nal assembly Telecoil Wiring of the VC Prepare the faceplate for VC Service tool Faceplates 730-D D Final device test Page 2 of 25
3 Description Key Features 730 : 14-band Fast-Syllabic Noise Reduction. 64-band Spectral Enchancement. 14-band Cochlea Dynamics Compression. Adaptive Digital Feedback Suppression (FDS). In-Situ Loudness scaling. Up to 4 environmentstal programmes, easily accessed by push-button. Key Features 730-OC : The comfort Tec package: WarpOpen Wide Dynamic Range Compression. Fast Acting Noise Reduction with low level expansion. Stabilizer DFS, Digital Feedback Suppression. Super- fast signal processing. Multi-band, fast-syllabic noise reduction. Up to 4 environmentstal programmes, easily accessed by push-button. Step vent design for improved comfort. Key Features 430 : 14-band Noise Reduction. 14-band Cochlea Dynamics Compression. Slow Adaptive Digital Feedback Suppression (FDS). In-Situ Loudness scaling. Up to 3 environmentstal programmes, easily accessed by push-button. Key Features 430-OC : The comfort Tec package: WarpOpen Wide Dynamic Range Compression. Fast Acting Noise Reduction with low level expansion. Stabilizer DFS, Digital Feedback Suppression. Super- fast signal processing. Multi-band, fast-syllabic noise reduction. Up to 3 environmentstal programmes, easily accessed by push-button. Step vent design for improved comfort. Key Features 230 : Cochlea Dynamics sound processing. 6-band full Dynamic range Compression. 1 programme and an additional Comfort Mode (230 only). Audiogram + fi tting rule. Feedback manager. Canta 230 and 230 VC available in size 312 only. Note that Canta 230 VC FP assembled is always delivered with fl oating VC and no push-button. Key Features 730-D : Adaptive Digital Feedback Suppression (DFS) Adaptive Directionality. 14-band Fast-Syllabic Noise Reduction. 14-band Cochlea Dynamics Compression. In-Situ Loudness scaling. Up to 4 environmentstal programmes, easily accessed by push-button. 64-band Spectral Enchancement. Options (all models except 230 VC): Programmable telecoil with T and MT For Stepped Vent please refer to doc. no for Step-Vent procedure. Typical Battery Life: Battery type 312: hours Battery type 10: Up to 78 hours Page 3 of 25
4 Typical performance data - IEC , 2cc coupler Data in accordance with IEC All sound pressure levels (db SPL) refer to 20 μpa. Unless otherwise is stated, data are based on a battery voltage of 1.35 V and internal impedance of 5 Ω. Reference test frequency is 1600 Hz Tolerance Unit Max. output (OSPL 90) 108 ± 4 db SPL Max. output (OSPL 90) at reference test frequency 102 ± 4 db SPL Full-on gain (Input 50 db ) 44 ± 5 db Full-on gain at reference test frequency 36 ± 5 db Full-on telecoil sensitivity (1mA/m ) 73 ± 6 db Full-on telecoil sensitivity (10mA/m ) 93 ± 5 db Reference test gain 25 ± 5 db Typical harmonic distortion at 800 Hz % % at 1600 Hz % % Typical equivalent input noise (Broadband method) 27 max. 35 db SPL Battery current % ma G[80] G[50] Full-on gain parameter settings 250 Hz Hz 22 1 khz 22 2 khz 22 4 khz 22 6 khz Page 4 of 25
5 Typical performance data - ANSI 2cc coupler Data in accordance with ANSI S All sound pressure levels (db SPL) refer to 20 μpa. Unless otherwise is stated, data are based on a battery voltage of 1.35 V and internal impedance of 5 Ω. Tolerance Unit Max. output (OSPL 90) 108 ± 4 db SPL HFA-SSPL ± 4 db SPL Full-on gain (Input 50 db ) 44 ± 5 db HFA Full-on gain 38 ± 5 db Full-on telecoil sensitivity (10mA/m ) 93 ± 6 db Reference test gain 25 ± 5 db Typical harmonic distortion at 500 Hz % % at 800 Hz % % at 1600 Hz % % Typical equivalent input noise 27 max. 35 db SPL Battery current % ma G[80] G[50] Full-on gain parameter settings 250 Hz Hz 22 1 khz 22 2 khz 22 4 khz 22 6 khz Page 5 of 25
6 Typical performance data 2cc coupler 130 Max. output (OSPL90) 60 Full on gain and Response gain Full on gain 50 db SPL input Reference test gain 60 db SPL input Page 6 of 25
7 Part List Item Part No. Item Part No. Receiver Wire, ESW, 7x50μ, red, 18 mm Tubing Q-fl ex Wire, ESW, 7x50μ, green, 18 mm Silicone tubing, uncut Wire, ESW, 7x50μ, green 20mm Microphone 9267 / EM-6392CX Wire, ESW, 7x50μ, blue 16mm Double face tape Wire, ESW, 7x50μ, red 20mm Wrap Wire, ESW, 7x50μ, amber 20mm Silicone tubing, uncut (sleve for mic wires) Wire, ESW, 7x50μ, green 20mm Wrap, 0.9 x 3mm (for hybrid) Wire, ESW, 7x50μ, red 26mm Wrap, 2.2 x 3mm (for hybrid) Wire, ESW, 7x50μ, green 26mm Disk insulation (when soldering on contact pads) Wire, ESW, 7x50μ, green 32mm Hybrid, fl ex C Wire, ESW, 7x50μ, blue 25mm Silicone tubing, uncut Wire, ESW, 7x50μ, amber, 18 mm Silicone tubing, uncut (for PB wires) EGC-1700 coating, 100ml Resistor 56K Loctite 401 LOC 05MF1 Push-button, Light RTV 734 silicone glue Push-button, Medium Clear windscreen, small Push-button, Dark Clear windscreen, medium Telecoil Windhood VC Fles-strips 10 pcs VC cap, Light Flex-strips 25 pcs VC cap, Medium Programming cable (R) VC cap. Dark Programming cable (L) Wire, ESW, 7x50μ, green 16mm Clothing clip Wire, ESW, 7x50μ, red 14mm Kit, progr. cable w/flex (R) Wire, ESW, 7x50μ, green 14mm Kit, progr. cable w/flex (L) Wire, ESW, 7x50μ, amber 16mm Drill for VC, ø 4mm D Microphone, single FG3824-C36 1 pcs Service tool/jig Silicone tube, Orange, uncut Soldering material/tin Sn62 ø 0.32mm Silicone tube, Blue, uncut Soldering material/tin Sn62 ø 0.46mm Wire, ESW, 7x50μ, amber 25mm Final Device Test Tool Wire, ESW, 7x50μ, red 25mm Page 7 of 25
8 Part List - Blank Faceplates Blank Faceplates FP Size 10A/Right Part No. Light Medium Dark FP Size 10A/Left Part No. Light Medium Dark FP/FXD Dual Mic Size 312/Right Part No. Light Medium Dark FP/FXD Dual Mic Size 312/Left Part No. Light Medium Dark FP/ Fixed PB Size 10A/Right Part No. Light Medium Dark FP/Fixed PB Size 312/Right Part No. Light Medium Dark FP/No PB Size 312/Right Part No. Light Medium Dark FP/Fixed PB Size 10A/Left Part No. Light Medium Dark FP/Fixed PB Size 312/Left Part No. Light Medium Dark FP/No PB Size 312/Left Part No. Light Medium Dark Battery Doors Battery doors Battery doors Size 10A/Right Part No. Size 10A/Left Part No. Light Light Medium Medium Dark Dark Battery doors Battry doors Size 312/Right Part No. Size 312/Left Part No. Light Light Medium Medium Dark Dark Page 8 of 25
9 Part List - FP assembled Model 730: Size 312/Fixed PB Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Floating PB - Size 10A Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Fixed PB - Size 10A Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Model 730-D, FXD-Size 312 Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Model 430: Size 312/Fixed PB Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Floating PB - Size 10A Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Fixed PB - Size 10A Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Model 230: Size 312/Fixed PB Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Model 230 VC Size 312/Floating VC/ No-PB Part No. Light, right Medium, right Dark, right Light, Left Medium, Left Dark, Left Page 9 of 25
10 Diagram - Dual Microphone (C2.0 flex hybrid) Page 10 of 25
11 Programming cable Insert the programming cable with the flex strip contacts away from the battery door Page 11 of 25
12 Receiver and microphone complete Mic wires: Wire stranded red, p/n Wire stranded amber, p/n Wire stranded green, p/n Place the double face tape - p/n and bend the wires towards it as shown in the picture + IN - Place wrap p/n Mount a sleeve before soldering the wires to the hybrid Sleeve p/n (cut to 3.5 mm) Solder the wires as shown Receiver wires: Wire stranded, red 26 mm p/n Silicone tubing p/n Cut the Qflex tubing to 6mm and place it as shown. Bend the wires. Cut the silicone tubing to 1.3mm and place it over the wires Note: Coating EGC-1700 must be added after soldering. Wire stranded, green 26 mm p/n Qflex tubing p/n Page 12 of 25
13 Microphone 730-D Microphone, left side : Front mic. Green 18 mm p/n Amber 18 mm p/n Red 18 mm p/n Back mic. Green 25 mm p/n Amber 25 mm p/n Red 25 mm p/n Microphone, right side : Front mic. Green 25 mm p/n Amber 25 mm p/n Red 25 mm p/n Back mic. Green 18 mm p/n Amber 18 mm p/n Red 18 mm p/n Page 13 of 25
14 Blank faceplates FP 10A Fixed PB FP 312 Fixed PB Left Right Left Right FP 10A Floating PB FP 312 No PB (for 230 VC only) Left Right Left Right Page 14 of 25
15 Prepare the faceplate - left side Left - size 10A Wire stranded, 14 mm, red p/n Wire stranded, 20 mm, red (to VBAT hybrid) p/n SCL GND SDA VBAT Wire stranded, 16 mm, blue (to SCL hybrid) p/n Wire stranded, 16 mm, amber (to SDA hybrid) p/n C4 Left - size 312 Wire stranded, m14 mm,green p/n Cut the terminals of the push-button to 1.7mm. Glue round the push-button with Loctite 401 and place it in the faceplate Wire stranded, 20 mm, green (to BAT GND hybrid) p/n Note: All wires must be handled/bent gently in order to avoid any damaging to the insulation. When connecting/soldering the wires they must be held gently with tweezers to avoid pinching and unraveling. Page 15 of 25
16 Prepare the faceplate - right side Right - size 10A Wire stranded, m14 mm,green p/n Wire stranded, 20 mm, green (to BAT GND hybrid) p/n Wire stranded, 16 mm, blue (to SCL hybrid) p/n SCL GND SDA VBAT Wire stranded, 16 mm, amber (to SDA hybrid) p/n C4 Right - size 312 Wire stranded, 14 mm, red p/n Wire stranded, 20 mm, red (to VBAT hybrid) p/n Note: All wires must be handled/bent gently in order to avoid any damaging to the insulation. When connecting/soldering the wires they must be held gently with tweezers to avoid pinching and unraveling. Page 16 of 25
17 Hybrid connections T-coil (red) (FRONT MIC) MIC+ REAR MIC REAR MIC (FRONT MIC) MIC IN (FRONT MIC) MIC- VC up T-coil (green) REAR MIC SDA VC down PB PB SCL BAT GND VBAT Danmark C2.0 p/n Note: Coating EGC-1700 must be added the hybrid after soldering. REC B REC A Page 17 of 25
18 K C Hybrid connections Green wires for push-button, 16mm p/n Tubing silicone, cut from p/n to a length of approx. 2.5mm Tubing, cut from p/n to a length of 4mm Cut to approx 7 mm 1 2 Silicone tubing Before placing the silicone tubing over the hybrid dip the hybrid in EGC-1700 coating for 5 Sec. Air dry for 15 Sec. Repeat these two steps. Note: All wires must be handled/bent gently in order to avoid any damaging to the insulation. When connecting/soldering the wires they must be held gently with tweezers to avoid pinching and unraveling. Silicone tube for hybrid p/n , uncut Cut silicone tube to 7 mm and place it over the hybrid. Two pcs. of wrap to be placed as shown: Place wrap No. 1 (p/n ) underneath the mic wires. Place wrap No. 2 (p/n ) underneath the amber and red mic wire but covering the green mic wire. Page 18 of 25
19 K K K K FP final assembly Size Fixed PB Size 10 - Floating PB OPERATOR I.D. # PART # CIRCUIT # OPERATOR I.D. # PART # CIRCUIT # OPERATOR OPERATOR I.D. I.D. # PART PART # CIRCUIT CIRCUIT # OPERATOR I.D. # PART # CIRCUIT # Left Right Size No PB (floating VC, see pages wiring VC ) Left Size 10 - Fixed push-button Right PART # SERIAL # PART # SERIAL # OPERATOR I.D. # PART # CIRCUIT # OPERATOR I.D. # PART # CIRCUIT # Left Right Left Right Page 19 of 25
20 Telecoil Tape Push-button Hybrid Telecoil Dress wires Care must be taken to minimize noise and interference pick-up with the telecoil option. The following steps should be followed: Add tape to the battery contact (on the push-button side) to prevent shorting. Connect the telecoil wires to the hybrid and twist the wires at least 5 times. Locate the hybrid behind/next to the push-button. Dress all wires on the opposite side of the battery door. Glue the telecoil to the shell (not to the faceplate) near the tragus. If the telecoil is for telephone use, mount it perpendicular to the plane of the faceplate (as shown in the picture). If the telecoil is for loop use, mount it parallel to the plane of the faceplate, in an up-down orientation, if possible. Page 20 of 25
21 Wiring of the VC - (230 VC only) Glue the VC with Loctite 416 to fi x it to the faceplate. Add Humiseal round the VC to prevent moisture from seeping the gaps between the VC and faceplate (see also instructions next page). Note: 230 VC FP assembled is delivered with fl oating VC Left side - Floating VC Right B D A C E MIC IN MIC- VC up VC down PB MIC+ TC IN SDA SCL BAT GND PB REC B REC A VBAT To battery spring (-) Left Right side - Floating VC B C A To VC up To battery spring (-) VC wires: Wire red, 25mm p/n Wire green, 32mm p/n Wire blue, 25mm p/n E D To VC down Note: Coating EGC-1700 must be added the hybrid after soldering. Page 21 of 25
22 Prepare the faceplate for VC Mark the VC hole location with a pencil. Drill the hole into the faceplate using a drill ø 4mm. Place the VC using tweezers Apply Loctite 416 around edge of VC. Add Humiseal p/n round the VC by using syringe Drill ø 4mm, p/n Page 22 of 25
23 Service Tool The tool can be used on both sides. One side to be used for sizes 312 and 10, the other side to be used for size 13 only. Only Size 13 Size 10 and 312 Page 23 of 25
24 Faceplates D Left Right Page 24 of 25
25 730-D - Final Device Test To insure a perfect microphone matching the steps below must be followed. The Final Device Test Tool accurate positions the microphones at equal distance from the speaker in the test chamber during calibration. 1. Detatch instrument from coupler and remove battery door. 2. Mount the instrument a long with flex strip on to the test tool as shown on the pictures. There will be a slight click when instrument gets to the correct position. 3. Place the test tool in the test chamber as shown on the picture. 4. Continue the testing using the 2 Microphone Equilization... program to correctly calibrate the rear microphone. 5. Remove tool from chamber and instrument from test tool - Finish. Notes and other explanations : The Final Device Test Tool is not stable enough to support the 2cc coupler if you wanted to take acoustic measurements using this tool. For this reason, the repair process needs to be taken in two steps. Page 25 of 25
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