ACS75, ACS75D, ACS85 & ACS85D BTE Overview. GTO September 2006 / May 2007

Transcription

1 ACS75, ACS75D, ACS85 & ACS85D BTE Overview GTO September 2006 / May 2007

2 ACS75 & ACS75D ACS75 ACS75D

3 Disassembly Pull out the soundhook from the BTE housing.

4 Disassembly Squeeze to grip Open the battery door about halfway. Hold and grip the door tight on both sides and lift off door from the device.

5 Disassembly Push the small plastic part as shown. This will release the housing from its locked position. Slowly separate the housing.

6 Disassembly Battery door lock When separating the housing the battery door lock may come off. Be careful not to loose this plastic part.

7 Disassembly Carefully separate the housing apart.

8 Receiver Replacement De-solder the Receiver connection as shown and replace with whole Receiver assembly. Receiver assembly Note: Always apply EGC-1700 after soldering.

9 Microphone(s) Replacement Remove mic(s) and the amplifier assembly from top housing.

10 Microphone(s) Replacement Front mic Rear mic De-solder mic connections as shown. Remember to connect the mic wiring to its designated PCB location. See picture as reference. Front mic assembly Rear mic assembly Use microphone complete assembly (with boot) for replacement. Note: Always apply EGC-1700 after soldering.

11 VC Replacement Disassemble the device and remove the PCB. Remove solder from VC contact pins as shown, to exchange the VC. Apply lacquer p/n on the nut, and coating p/n on the solder joints after replacing the Volume Control.

12 Telecoil Replacement Disassemble the device and remove the PCB. Remove defective tele-coil and replace new coil onto white frame as shown. Use silicon RTV734 to keep it in place. Solder wires onto the PCB Apply coating p/n on the solder joints after replacing Telecoil.

13 ACS85 & ACS85D ACS85 ACS85D

14 Key Features High Power BTE C.3.0 Hybrid Single Microphone or Dual Microphone Direct Audio Input (DAI) shoe Telecoil Program selector (push-button) Analogue Volume Control with visible cues Colored side indicator ON/OFF through battery door Baby tone tube Spectacle adaptor Colors available: - beige - grey and - dark brown

15 Exploded view

16 Disassembly instructions

17 Amplifier Single Mic

18 Amplifier complete Amplifier complete includes: PCB hybrid C.3.0 Push-button Volume control Telecoil AI-module Battery spring module Chassis complete Programming pins On/off lock

19 Replace Microphone(s) Disassemble device Remove coating material and replace Microphone. (use mic. complete as spare part) Ensure wires a routed properly and fixated to the chassis. Wire lengths: - Red 20mm - Green 18mm - Amber 20mm Note: Always apply EGC-1700 after soldering.

20 Replace Receiver Disassemble the device and remove the PCB. Remove the Receiver unit to access wires for Receiver unit. Apply silicone glue on the Receiver stud before attaching nose block. Wire lengths: - Red 11mm - Green 11mm - Amber 11mm Note: Always apply EGC-1700 after soldering.

21 Replace AI-module Disassemble the device and remove the PCB. Remove solder from PCB as shown, to exchange the AI-module. Note: Always apply EGC-1700 after soldering.

22 Replace Volume Control Disassemble the device and remove the PCB. Remove solder from VC contact pins as shown, to exchange the VC. Apply lacquer p/n on the nut, and coating p/n on the solder joints after replacing the Volume Control.

23 Replace Telecoil Disassemble the device and remove the PCB. Remove the Receiver unit to access the wires for Telecoil. Add double faced tape to fixate the Telecoil. Apply coating p/n on the solder joints after replacing Telecoil. Wire lengths - Red 9mm - Green 12mm

24 Other repair instructions Use spare part Chassis Complete to replace, on/off spring and programming pins. No service tool, therefore its recommended to replace amplifier if the push-button is defect. Not a standard push-button To replace battery springs use Battery contact module. Apply molycote on the springs

25 Test equipment Use standard test equipment for AUDIOmaster test systems: 2cc coupler CS44 programming cable

26 Test instructions Place device in test chamber as shown on the picture. Ensure correct positioning T-coil Run the AUDIOmaster test script.