Operation CHARM: Car repair manuals for everyone.

Installing Optical Waveguide (PCM to Loudspeaker Amplifier to TV Tuner to Reversing Camera)



Installing Optical Waveguide (PCM To Loudspeaker Amplifier To TV Tuner To Reversing Camera)

Tools







MOST control units A - B - C - D







Preliminary work
1. Remove trim panel for luggage compartment at the right.
2. Remove TV tuner.
3. Remove dashboard.
4. Remove carpet at the right.
5. Remove loudspeaker amplifier.
6. Remove right C-pillar trim.
7. Remove control unit for reversing camera.

Installing optical waveguide (PCM to loudspeaker amplifier to TV tuner to reversing camera)

Disconnecting optical waveguide

NOTE:
Voltage peaks
- Risk of damage to load or to the control unit

- Remove the ignition key and switch off load before disconnecting or removing load.

INFORMATION: Observe the general information on optical waveguides.

INFORMATION:
Before routing a new optical waveguide:
- Visually check the locks, connector housing and contacts for damage.
- Replace damaged parts if necessary.

1. Release and unplug the optical waveguide connector at the loudspeaker amplifier.







2. Release and unplug the optical waveguide connector at the TV tuner.







3. Release and unplug the optical waveguide connector at the PCM system.







4. Release and unplug the optical waveguide connector at the reversing camera control unit.







Removing and installing optical contacts on connector side
1. Open the secondary locking mechanism using the press-out and unlocking tools for tab and round plug connectors of all sizes Nr.155. Insert the tool into the opening provided and lift the locking mechanism. The locking mechanism engages in the upper position.







2. Press-out and unlocking tools for tab and round plug connectors of all sizes Nr.155 must be positioned on the primary locking mechanism. Then lift the locking mechanism.







3. Carefully pull on the optical waveguide -A and B- in -direction of arrow-. If it is not possible to pull out the optical waveguide, check again if the secondary locking mechanism is completely released and if the primary locking mechanism is raised sufficiently.

Perform visual inspection of locking mechanisms, connector housings and contacts for possible damage, and exchange the damaged parts, if necessary.

Installing optical contacts on connector side

Remove the dust boot right before plugging.

Check the proper condition of the contacts.

1. Insert the optical contact -A and B- into the connector until it engages audibly.







2. Lock the secondary locking and check the optical contacts for tightness.







Installing optical waveguide (PCM to loudspeaker amplifier to TV tuner and reversing camera)

NOTE:
Voltage peaks
- Risk of damage to load or to the control unit

- Remove the ignition key and switch off load before disconnecting or removing load.

INFORMATION:
- The new lines will be secured to the fastening points for the old lines.
- The old wire harness remains installed in the vehicle.
- The old wire harness will only be disconnected/unplugged directly at the connected components.

INFORMATION: When installing the wire harness, make sure the insulation of the line is not damaged.

INFORMATION:
The range of spare parts available for optical waveguides depends on the vehicle equipment. Depending on the vehicle equipment, there is a specific set containing the individual optical waveguides.

Select the required optical waveguide and remove it from the set.

INFORMATION:
Before routing a new optical waveguide:
- Visually check the locks, connector housing and contacts for damage.
- Replace damaged parts if necessary.

1. Cut off the optical contacts of the damaged optical waveguide, isolate it and tie it to the main wire harness.
2. Route the new optical waveguide along the main wire harness, guide it through the existing cable ducts and tie it to the main wire harness using tie-wraps (shown as an example).







3. Plug in the optical waveguide connector at the loudspeaker amplifier and make sure that the locking mechanism engages securely.







4. Plug in the optical waveguide connector at the TV tuner and make sure that the locking mechanism engages securely.







5. Plug in the optical waveguide connector at the PCM system and make sure that the locking mechanism engages securely.







6. Plug in the optical waveguide connector at the reversing camera control unit and make sure that the locking mechanism engages securely.







Subsequent work
1. Install control unit for reversing camera.
2. Install TV tuner.
3. Install loudspeaker amplifier.
4. Install right C-pillar trim.
5. Fit carpet at the right.
6. Install dashboard.
7. Install trim panel for luggage compartment at the right.