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Jaguar XJ (X350). Service manual - part 1314

-> Yes

The AUX1 audio test has passed.

-> No

INSTALL a new control panel,

Rear Passenger Entertainment Control Panel TEST the system for normal operation.

PINPOINT TEST G240121p9 : CHECK
THE NTSC SIGNAL AT THE REAR
SCREENS (AUX2)

G240121t48 : CHECK THE SCREENS AND CIRCUITS USING THE
VIDEO/AUDIO TESTER (NTSC)

1. Turn the ignition switch to the ACC position. 2. Set the rear entertainment control panel to AUX2

for both screens (refer to Selecting AUX1; AUX2 and audio functions in this section). 3. Set the rear

screens to AUTO (refer to Selecting AUTO/PAL/NTSC in this section). 4. Connect the video/audio

tester to AUX2, video (yellow). 5. Select NTSC on the video/audio tester, make sure the blue LED is

illuminated.

•

Is the NTSC test image displayed on both screens?

-> Yes

The AUX2 signal test has passed.

-> No

If the test image is displayed on the left-hand screen only, GO to Pinpoint Test G240121p2.

If the test image is displayed on the right-hand screen only, GO to Pinpoint Test G240121p3.

If the test image is displayed on neither screen, GO to Pinpoint Test G240121t49.

G240121t49 : CHECK THE SCREENS AND CIRCUITS USING THE
VIDEO/AUDIO TESTER (PAL)

1. Select PAL on the video/audio tester, make sure the blue LED is illuminated.

•

Is the PAL test image displayed on both screens?

-> Yes

Neither screen can decode a NTSC signal. INSTALL two new screens,

Video Display

-> No

If the test image is displayed on the left-hand screen only, install a new left-hand screen, as it cannot

decode a NTSC signal,

Video Display TEST the system for normal operation.

If the test image is displayed on the right-hand screen only, install a new right-hand screen, as it

cannot decode a NTSC signal,

Video Display TEST the system for normal operation.

If the test image is displayed on neither screen, GO to Pinpoint Test G240121t50.

G240121t50 : CHECK THE TEST SIGNAL OUTPUT FROM THE CONTROL
PANEL

1. Turn the ignition switch to the OFF position. 2. Make sure the video/audio tester is switched OFF.

3. Disconnect the control panel electrical connector, RC03. 4. Turn the ignition switch to the ACC

position. 5. Set the rear entertainment control panel to AUX2 for both screens (refer to Selecting

AUX1; AUX2 and audio functions in this section). 6. Connect the oscilloscope. Refer to Oscilloscope

set-up procedure in this section. 7. Using suitable adaptors, and an assistant if necessary, connect

the red oscilloscope probe to RC03, pin 16 (probing INTO the control panel). 8. Using suitable

adaptors, and an assistant if necessary, connect the black oscilloscope probe to RC03, pin 17 (probing

INTO the control panel). 9. Turn the video/audio tester ON, and to the TEST position by holding in

the TEST button while selecting PAL or NTSC. The blue and red LEDs will illuminate.

•

Is the waveform similar to the example in Waveforms in this section?

-> Yes

GO to Pinpoint Test G240121t51.

-> No

For further control panel tests, GO to Pinpoint Test G240121p5.

, GO to Pinpoint Test G240121p6.

, and GO to Pinpoint Test G240121p7.

G240121t51 : CHECK THE TEST SIGNAL AT INTERMEDIATE CONNECTOR,
RC04

1. Turn the ignition switch to the OFF position. 2. Make sure the video/audio tester is switched OFF.

3. Reconnect the control panel electrical connector, RC03. 4. Disconnect intermediate connector,

RC04. 5. Turn the ignition switch to the ACC position. 6. Connect the oscilloscope. Refer to

Oscilloscope set-up procedure in this section. 7. Using suitable adaptors, and an assistant if

necessary, connect the red oscilloscope probe to RC04, pin 16 (Y). 8. Using suitable adaptors, and an

assistant if necessary, connect the black oscilloscope probe to RC04, pin 17 (B). 9. Turn the

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video/audio tester ON, and to the TEST position by holding in the TEST button while selecting PAL or

NTSC. The blue and red LEDs will illuminate.

•

Is the waveform similar to the example in Waveforms in this section?

-> Yes

GO to Pinpoint Test G240121t53.

-> No

GO to Pinpoint Test G240121t52.

G240121t52 : CHECK THE CIRCUIT BETWEEN RC03 AND RC04 FOR
CONTINUITY

1. Turn the ignition switch to the OFF position. 2. Make sure the video/audio tester is switched OFF.

3. Measure the resistance between RC03, pin 16 (Y) and RC04, pin 16 (Y). 4. Measure the resistance

between RC03, pin 17 (B) and RC04, pin 17 (B).

•

Is either resistance greater than 5 ohms?

-> Yes

INSTALL a new harness between RC03 and RC04, TEST the system for normal operation.

-> No

RECHECK all connections and harness, as no fault has been confirmed.

G240121t53 : CHECK THE CIRCUIT BETWEEN RC04 AND TL86 FOR
CONTINUITY

1. Disconnect the audio/video selector module electrical connector, TL86. 2. Measure the resistance

between TL86, pin 16 (Y) and RC04, pin 16 (Y). 3. Measure the resistance between TL86, pin 17 (B)

and RC04, pin 17 (B).

•

Is either resistance greater than 5 ohms?

-> Yes

INSTALL a new harness between TL86 and RC04, TEST the system for normal operation.

-> No

GO to Pinpoint Test G240121t54.

G240121t54 : CHECK THE AC ON/OFF CONTROL TO THE AUDIO VIDEO
SELECTOR MODULE AT CONNECTOR TL86

1. Make sure the ignition switch is in the OFF position. 2. Reconnect intermediate connector, RC04. 3.

Measure the resistance between TL86, pin 06 (RG) and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G240121t56.

-> No

GO to Pinpoint Test G240121t55.

G240121t55 : CHECK THE AC ON/OFF CONTROL TO THE AUDIO VIDEO
SELECTOR MODULE AT CONNECTOR TL86 IGNITION ON

1. Turn the ignition switch to the ON position. 2. Measure the voltage between TL86, pin 06 (RG) and

GROUND.

•

Is the voltage battery voltage?

-> Yes

For further control panel tests, GO to Pinpoint Test G240121p5.

, GO to Pinpoint Test G240121p6.

and GO to Pinpoint Test G240121p7.

-> No

GO to Pinpoint Test G240121t58.

G240121t56 : CHECK THE AC ON/OFF CONTROL TO THE AUDIO VIDEO
SELECTOR MODULE AT CONNECTOR RC04

1. Make sure the ignition switch is in the OFF position. 2. Disconnect intermediate connector, RC04.

3. Measure the resistance between RC04, pin 06 (RG) and GROUND.

•

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G240121t57.

-> No

INSTALL a new harness between TL86 and RC04. TEST the system for normal operation.

G240121t57 : CHECK THE AC ON/OFF CONTROL TO THE AUDIO VIDEO
SELECTOR MODULE AT CONNECTOR RC03

1. Make sure the ignition switch is in the OFF position. 2. Disconnect the control panel electrical

connector, RC03. 3. Measure the resistance between RC03, pin 06 (probing INTO the control panel)

and GROUND.

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