Checking Remote Control, Rear Seat Entertainment, Generation 4.1-4.3
Checking the remote control
Fault-tracing information
The remote control uses infrared signals (IR) to transmit commands to the system. The signals are received by the screen's infrared receiver. If the remote control does not work, , the problem may be due to:
- Discharged batteries.
- Damaged remote control.
- Damaged cable for infrared (IR) signals.
Continue - Checking the remote control signal
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Fault-tracing information
Attempt New Test - Fault-tracing information
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Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Restore components and connectors.
- Switch on the ignition. Lighting in the DVD-player's buttons is activated. If the TV receiver is installed, the receiver's LED lights up.
- When start-up is performed the lighting in the DVD-player's buttons goes off, does not apply to POWER-button. If the TV receiver is installed, the receiver's LED goes out.
Note! A long start-up time indicates a fault in communication with the screens. For further information, see VIDA Design and function.
- Start the system using the POWER button on the DVD player or the remote control. Use the buttons, on both DVD-player and remote control, to operate the system.
Check that:
- The screens show a picture.
- DVD-disc can be played.
- Sound is heard in wireless headphones.
- Sound can be heard in the vehicle's speakers.
- Menus can be accessed with the remote control in both screens.
- TV picture appears (if TV receiver is installed) and it is possible to change channels.
- If possible, connect an external source to the AV input and test the function.
Is the function OK?
Yes - FAULT FOUND
No - Fault-tracing information
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Checking the remote control signal
Hint: Activation of the infrared IR-receivers in the head restraints can be checked by the IR-lights in the screen's lower edge being on dimly after the system has been turned on.
Checking IR-signal, left screen
To check the voltage level on the signal cable for IR-signal, proceed as follows:
- Connect all cables and connectors.
- Measure the voltage between the signal cable for the Infra Red (IR) signal to the left-hand display screen and ground. The measured voltage is reference value.
Note! Do not press any of the buttons on the remote control during this measurement.
- Measure from the rear side of a suitable connector. Do not damage the terminals in the connector.
- Aim the remote control at the left screen and press in a button on the remote control. The voltage on the signal cable must fall slightly for as long as the button on the remote control is pressed in. Test all remote control buttons.
Note! Important in this measurement are not the absolute voltage levels, instead you get a voltage difference downward.
Checking IR-signal, right screen
Compare the latest reading as above with the signal for the infra red (IR) signal from the right-hand infra red (IR) receiver for the display screen.
Conclusion
- If the result of the above checks is that no malfunction was found, this means that the receivers in both screens work and that the remote control is OK.
- If voltages on the cables are OK but a lower voltage cannot be measured when a button on the remote control is pressed down, try with replacing the remote control.
If there signal cable fault for the IR signal to the screen, check the IR signal cable between the screen and rear seat entertainment module (RSE) for short circuit to ground, short circuit to voltage and open circuit.
Remedy as necessary.
Other information
- Signal specification, rear seat entertainment module (RSE), generation 4.3 Signal Specification, Rear Seat Entertainment Module (RSE), Generation 4.3
- Checking wiring and terminals Checking Wiring and Terminals. Permanent Faults
Continue - Verification
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