Technical Manual Canta 770-D/470-D & 270/270-D

Transcription

1 Technical Manual Canta 770-D/470-D & 270/270-D (including 770-D & 470-D Open BTE features) GN ReSound as Global Technical Operations gto.gnresound.com Lautrupbjerg 9 DK-2750 Ballerup Denmark Phone: Service@gnresound.dk

2 Table of contents Description D & 470-D Open Fitting Considerations...4 Typical performance data IEC 118-7/ANSI Part lists Accessories for FlexVent...14 Diagram...15 Amplifi er with DC test points...16 Programming cable...17 Microphone complete...18 Receiver complete...19 Amplifi er transducer solder points...20 Coating instructions - amplifi er...21 Instrument complete in housing...22 Battery door assembling...23 Housing screws and battery door w/colour marker...24 Replacement of the hook filter stick...25 Service tools...26 Service & Repair notes...27 Page 2 of 27

3 Description Key Features 770-D: Adaptive Digital Feedback Suppression (DFS). Adaptive Directionality. Active Microphone matching. 14-band Fast-Syllabic Noise Reduction. 14-band Cochlea Dynamics compression. In-Situ Loudness scaling. Up to 4 environmental programmes. easily accessed by push-button. 64-band Spectral Enhancement. Key Features 470-D: Fast Adaptive Digita Feedback Suppression (DFS). Fixed Directionality. Active Microphone Matching. 14-band Fast-Syllabic Noise (one setting only). 14-band Cochlea Dynamics compression. In-Situ Loudness scaling. Up to 3 environmental programmes, easily accessed by push-button. Key Features 270: Cochlea Dynamics sound processing. 6-band full dynamic range compression. 1 programme and an additional comfort mode. Audiogram + fitting rule. Feedback manager. Key Features 770-D Open: Software based digital signal procesor. Key Features 470-D Open: Dual microphone. Software based digital signal procesor. Digital Dynamic Directionality: Dual microphone. - Fast acting Adaptive Directionality. ComforTec Open Fitting Technology ComforTec Open Fitting Technology - WarpOpen Wide Dynamic Range Compression - WarpOpen Wide Dynamic Range for open fitting. Compression for open fi tting. - Fast Acting Noise reduction with low level expansion. - Fast Acting Noise reduction with low - Super fast signal processing to avoid echoing effect. level expansion. - Stabilizer DFS, Digital Feedback Suppression - Super fast signal processing to avoid for open fitting. echoing effect. - Stabilizer DFS, Digital Feedback Suppression for open fi tting. Key Features 270-D: Cochlea Dynamics sound processing. 6-band full dynamic range compression. Slow adaptive DFS Audiogram + fitting rule. Programmable multi-memory Test software for Fonix system: Make sure that Fonix II Canta or higher is installed as this software has all models included. Typical Battery Life Up to 257 hours. Page 3 of 27

4 770-D Open Fitting Considerations As a new feature Canta 770-D & 470-D can be fi tted as an open fi tting. This option is applied by installing the ComforTec TM algorithm into a standard Canta 770-D or 470-D. This new algorithm is optimized to enable Hearing Instruments with less occlusion and feedback. The ComforTec TM package can only be installed with Aventa fi tting software, NOT by any version of Fonix II Final Device Test software. When installed it will replace the traditional software in Canta 770-D & 470-D. By testing a Canta 770-D or 470-D on a Final Device Test system, FONIX or DSA 5000, the original software package will be re-installed regardless if a ComforTec package previously has been installed. A ComforTec TM fi tting will be stored and can be re-installed during a repair of a Canta 770-D or 470-D by reading the user settings with Aventa and re-program the instrument after the fi nal device test. Canta Open and ComforTec TM technology requires Aventa 2.0 or higher. It is advisable to use a Fonix II Canta ver or higher. Page 4 of 27

5 Typical performance data - IEC , 2cc coupler - 270/270-D Data in accordance with IEC Supply by Voltage 1.3V. Unless otherwise is stated, all measurements made without Directionality, Noise Reduction, Spectral Enhancement or DFS active. Tolerance Unit Max. output (90 db SPL input) 123 ± 4 db SPL Max. output (90 db SPL input) at 1600 Hz 114 ± 4 db SPL Full-on gain (Input 50 db SPL ) 47 ± 5 db Full-on gain (Input 50 db SPL ) at 1600 Hz 38 ± 5 db Telecoil sensitivity (1 ma/m ) 77 ± 5 db Telecoil sensitivity (10 ma/m) 97 ± 6 db Reference test gain 1600 Hz (60 db SPL input) 31 ± 6 db Total harmonic distortion at 800 Hz 1.0 max. 5.0 % at 1600 Hz 1.0 max. 5.0 % Equivalent input noise 26 max. 32 db SPL Current drain 1.1 max. 1.8 ma Note: The above data is measured on the basis of C 2.0 amp. If the C 1.5 amp is mounted the current drain is a bit higher. G[80] G[50] 270/270-D: Full-on Gain Parameter Settings Page 5 of 27

6 Typical performance data - ANSI 2cc coupler - 270/270-D Data in accordance with ANSI S Supply by Voltage 1.3V. Unless otherwise is stated, all measurements made without Directionality, Noise Reduction, Spectral Enhancement or DFS active. Tolerance Unit Max. output (90 db SPL input) 123 ± 4 db SPL HFA SSPL ± 4 db SPL Full-on gain (Input 50 db SPL ) 47 ± 5 db HFA Full-on gain 41 ± 5 db Full-on telecoil sensitivity (1 ma/m ) 77 ± 6 db Full-on telecoil sensitivity (10 ma/m ) 97 ± 6 db Reference test gain HFA 34 ± 6 db Total harmonic distortion at 500 Hz 0.5 max. 5.0 % at 800 Hz 1.0 max. 5.0 % at 1600 Hz 1.0 Max. 5.0 % Equivalent input noise 26 max. 31 db SPL Current drain 1.2 max. 1.8 ma Note: The above data is measured on the basis of C 2.0 amp. If the C 1.5 amp is mounted the current drain is a bit higher. G[80] G[50] 270/270-D: Full-on Gain Parameter Settings Page 6 of 27

7 Typical performance data - IEC , 2cc coupler D/470-D Data in accordance with IEC Supply by Voltage 1.3V. Unless otherwise is stated, all measurements made without Directionality, Noise Reduction, Spectral Enhancement or DFS active. Tolerance Unit Max. output (90 db SPL input) 124 ± 4 db SPL Max. output (90 db SPL input) at 1600 Hz 114 ± 4 db SPL Full-on gain (Input 50 db SPL ) 50 ± 5 db Full-on gain (Input 50 db SPL ) at 1600 Hz 40 ± 5 db Telecoil sensitivity (1 ma/m ) 80 ± 5 db Telecoil sensitivity (10 ma/m) 100 ± 6 db Reference test gain 1600 Hz (60 db SPL input) 30 ± 6 db Total harmonic distortion at 800 Hz 0.7 max. 5.0 % at 1600 Hz 0.8 max. 5.0 % Equivalent input noise 27 max. 32 db SPL Current drain 1.1 max. 1.8 ma Note: The above data is measured on the basis of C 2.0 amp. If the C 1.5 amp is mounted the current drain is a bit higher. G[80] G[50] 770-D/470-D: Full-on Gain Parameter Settings Page 7 of 27

8 Typical performance data - ANSI, 2cc coupler D/470-D Data in accordance with ANSI S Supply by Voltage 1.3V. Unless otherwise is stated, all measurements made without Directionality, Noise Reduction, Spectral Enhancement or DFS active. Tolerance Unit Max. output (90 db SPL input) 123 ± 4 db SPL HFA SSPL ± 4 db SPL Full-on gain (Input 50 db SPL ) 50 ± 5 db HFA Full-on gain 42 ± 5 db Full-on telecoil sensitivity (1 ma/m ) 80 ± 6 db Full-on telecoil sensitivity (10 ma/m ) 100 ± 6 db Reference test gain HFA 34 ± 6 db Total harmonic distortion at 500 Hz at 800 Hz max. 5.0 max. 5.0 % % at 1600 Hz 1.0 max. 5.0 % Equivalent input noise 26 max. 31 db SPL Current drain 1.5 max. 1.8 ma Note: The above data is measured on the basis of C 2.0 amp. If the C 1.5 amp is mounted the current drain is a bit higher. G[80] G[50] 770-D/470-D: Full-on Gain Parameter Settings Page 8 of 27

9 Typical performance data 2cc coupler Max. output (OSPL90) Full-on gain Input 50dB SPL and reference test gain input 60 db SPL Full-on gain 50 db SPL input Reference test gain 60 db SPL input Page 9 of 27

10 Part list Item Part No. Item Part No. Screw, self-cutting 1x6 mm Colour marker, red 25 pcs Screw, self-cutting 1x4 mm Colour marker, blue 25 pcs Screw sleeve Silicone coating KR112, 10ml Screw 1x3 mm Coating EGC-1700, 100ml Hook filter stick ( 4 pcs) Coating Molykote Screen receiver Wire, ESW, 7x32μ, green 12mm Foam rubber pad Wire, ESW, 7x32μ, amber 12mm Foam rubber pad small Wire, ESW, 7x32μ, red 13mm Axle, ON/OFF Wire, ESW, 7x32μ, green 9mm Contact spring for ON/OFF button Wire, ESW, 7x32μ, amber 10mm Locking pin, ON/OFF Wire, ESW, 7x32μ, red 9mm Receiver 23x97/ED Wire, ESW, 7x32μ, green 13mm Nipple receiver Wire, ESW, 7x32μ, red 14mm Suspension receiver Programming cable (R) Receiver complete (incl. nipple + wires) Programming cable (L) Microphone 9667GX1 / EM4368-C Flex-strip, 4 terminal (package of 10 ) Nipple microphone (front) Flex-strip, 4 terminal (package of 25 ) Nipple microphone (rear) Kit, progr. cable w/flex (R) Tube silicone (feet), uncut Kit, progr. cable w/flex (L) Front microphone complete (incl. nipple + wires) Soldering material/tin Sn62 ø 0.32mm Rear microphone complete (incl. nipple + wires) Soldering material/tin Sn62 ø 0.46mm Glue, Loctite 420 LOC 02MF1 Service tool, Amplifier Rubber glue Service tool, HI Primer, Loctite Ventplate, 40 pcs red & 40 pcs blue Amplifier complete C FlexVent box (complete kit in box) Switch with flange PB 95, pre-cut Insert vent, large 40 pcs Telecoil, Y07-32-FFN, 6 mm wires Insert vent, medium 40 pcs PCB - contact board, asm Flex tool 5 pcs PCB - contact compl (w/pb and contact module) Tube ø3 x ø2, bended 80 o (PVC) 40 pcs Contact module FlexVent kit package CH Page 10 of 27

11 Part list colours/housings for CANTA 770-D Item Part No. Item Part No. Platinum: Housing complete w/serial No Dark brown: Housing complete w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Light blonde: Housing complete w/serial No Anthracite: Housing complete w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Medium blonde: Housing complete w/serial No Marble grey:: Housing complete w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Dark blonde: Housing complete w/serial No Hook Battery door w/serial No.# Battery door blank Button ON/OFF Microphone filter Cover push-button Housing complete includes: Hook, Battery door, cover for push-button, pads, receiver screen. Page 11 of 27

12 Part list colours/housings for CANTA 470-D Item Part No. Item Part No. Light blonde: Housing complete w/serial No Dark brown: Housing complete w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Medium blonde: Housing complete w/serial No Marble grey: Housing complete w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Housing complete includes: Hook, Battery door, cover for push-button, pads, receiver screen. Part list colours/housings for CANTA 270 & 270-D Item Part No. Item Part No. Medium blonde: 270: Housing compl. w/serial No Dark brown: 270: Housing compl. w/serial No D:Housing compl.w/serial No D: Housing compl. w/serial No Hook Hook Battery door w/serial No.# Battery door w/serial No.# Battery door blank Battery door blank Button ON/OFF Button ON/OFF Microphone filter Microphone filter Cover push-button Cover push-button Housing complete includes: Hook, Battery door, cover for push-button, pads, receiver screen. Page 12 of 27

13 Part list hearing instrument complete and replica Replica HI compl 770-D*, all colours Item Part No. Platinum Light blonde Medium blonde Dark blonde Dark brown Anthracite Marble grey HI compl 770-D, all colours Item Part No. Platinum Light blonde Medium blonde Dark blonde Dark brown Anthracite Marble grey HI compl 470-D, all colours Item Part No. Light blonde Medium blonde Dark brown Marble grey HI compl 270, all colours Item Part No. Medium blonde Dark brown HI compl 270-D, all colours Item Part No. Medium blonde Dark brown Page 13 of 27

14 Accessories for FlexVent The flexvent system should only be used with Canta 770-D or 470-D configured as an open canal product using Aventa ver. 1.4 or higher fitting software. See also our Marketing Product Information for more details. Flex tool, 5 pcs p/n Vent plates, 40 pcs red and 40 pcs blue p/n PVC tube, bended, 40pcs p/n Insert vent, large 40 pcs p/n Insert vent, medium 40 pcs p/n FlexVent box (complete kit) p/n FlexVent kit package p/n Page 14 of 27

15 Diagram - 2 mic version DC voltages are measured relative to the negative battery spring Page 15 of 27

16 Amplifier with DC test points DC voltages are measured relative to the negative battery spring. Page 16 of 27

17 Programming cables Programming cable with fl ex strip. Insert the programming cable with the fl ex strip contacts turned towards the push-button. Page 17 of 27

18 Microphones complete Rear microphone complete for Canta 770-D/470-D, 770/470 Open p/n Green wire, 13 mm p/n Amber wire, 10 mm p/n Red wire, 13 mm p/n Nipple p/n Add Primer 770 round the nipple before gluing with Loctite 420. Rear mic wire lengths used on hearing instrument complete with amp C 2.0 received from stock: Green wire, 9 mm p/n Amber wire, 10 mm p/n Red wire, 9 mm p/n see also page 27 Service & Repair Notes Add EGC-1700 coating onto the soldering points after soldering - let dry for 15 Sec - add another layer of EGC Nipple p/n Front microphone complete for all models - p/n Add CH-74 on Mic to avoid shorting between Mic and wires. Amber wire, 18 mm p/n Red wire, 13 mm p/n Green wire, 12 mm p/n Add Primer 770 to the nipple before gluing with Loctite 420. Silicone tube p/n uncut (kept on stock in feet: 30.5cm/foot) The tube is cut to 1 mm. Front mic wire lengths used on hearing instrument complete with amp C 2.0 received from stock: Green wire, 12 mm p/n Amber wire, 12 mm p/n Red wire, 13 mm p/n see also page 27 Service & Repair Notes Page 18 of 27

19 Receiver complete Green wire, 13 mm p/n Nipple p/n Add Primer 770 to the nipple before gluing with Loctite 420. Add EGC-1700 coating onto the soldering points after soldering. Be sure to keep the coating onto the soldering points only. Let dry for 15 Sec. and add another layer of EGC Red wire, 14 mm p/n Rubber glue p/n to keep the wires in place. Suspension p/n Make sure to fi t the receiver tube correctly to the hook (no glue). The receiver must not be twisted. 1. Insert receiver with hook using the screw sleeve as fixture (here shown in a 770-D/470-D housing). 2. Fit the suspension to the pin. Make sure that the receiver is not touching the pads and the screen. Page 19 of 27

20 Amplifier with transducer solder points Green - telecoil Red - telecoil Green - rear mic Red - front mic Red - rear mic Green line Amber, front mic Green, front mic Amber - rear mic Placement of the transducer wires, 770-D/470-D Green - rec Red - rec Canta 270 Placement of the mics and the telecoil Note: Regarding lengths of mic wires please also see page 27 Service & Repair Notes. The telecoil is placed parallel to the front mic. chamber and the green line on the amplifier. It is kept in place by the subsequent coating with KR112 Page 20 of 27

21 Coating instructions - amplifier Add Molykote to the contact module by using a syringe. 4 5 The Molykote must fill up the space between contact module and board. Turn around the amplifier and fill from this side. 6 The indicated areas are covered with coating KR112. The indicated area is covered with Molykote. Cover the corner in the opposite side. Cover the corner where the contact module is fitted. Remove any excess Molykote as shown in the picture. Carefully clean the pins. There must be Molykote left in the area between the yellow arrows. Page 21 of 27

22 Instrument complete in housing Picture 1 Picture 2 Cover for push-button - p/n must be placed correctly as shown in pictures 1 and 2. The 2 locking pins p/n , must be turned differently. The 2 locking pins p/n , must be turned differently. See picture 3. Picture 3 Page 22 of 27

23 Battery door assembling Contact spring Axle ON/OFF ON/OFF button Contact spring p/n Axle ON/OFF p/n ON/OFF button p/n x9 Attach the contact spring to the ON/OFF button. Make sure it is placed correctly. Push ON/OFF button and the battery door together and mount the axle to keep the parts fi xed. Make sure the axle is pressed down to the bottom. Battery door complete assembled with ON/OFF button, contact spring. Page 23 of 27

24 Housing screws and battery door w/ colour marker Colour markers (25 pcs in a bag): Red p/n Blue p/n Screw p/n Colour markers red (Right),or blue (Left) are to be inserted into the slot in the battery door. Screw p/n Screw p/n Page 24 of 27

25 Replacement of the hook filter stick Replacement of the filter: Place the hook wth filterstick into the hole. Press until a small click sound appears and slide the HI towards the new filters until the used filter is off. 2. Mount the new filter: Press the HI over a new filter. Pull the instrument straight up and a new filter will be placed into the hook. 3. Fit the filter: Press the hook with the new filter firmly down in the hole to ensure that the filter is securely fitted into the hook. The hook filter sticks are delivered with 4 pcs. in a frame - p/n No Page 25 of 27

26 Service Tools Tool for amp p/n Amp is fixed in the tool for replacement of the push-button and other work The service tools must always be used when working on either amp or HI as the tools are working as a heat sink. Tool for HI p/n HI is fixed when working on it Holes to fix the mic and rec Page 26 of 27

27 Service & Repair Notes Amplifier complete C2.0 : Mic complete : On this new layout the soldering points for mics have changed. The points for front mic are placed more appropriate as they are no longer underneath the telecoil. Install the Fonix II Canta test software ver as this software have all models included. Old version spare amplifier can be used up and should only be replaced in a repair situation if any faults is found. Canta 270 will be mounted with C2.0 amplifier on introduction. When ordering the mics complete they will be mounted with wires with suitable lengths for both amplifier C1.5 and C2.0. It means that some of the lengths are a bit longer on mic complete than on the hearing instrument complete C2.0 when receiving a new on stock. On page mic complete all lengths are mentioned. Amplifi er C 1.5 Amplifier C 2.0 Page 27 of 27