Jaguar XJ (X350). Manual — part 1311

and GO to Pinpoint Test G240121p6.

.

PINPOINT TEST G240121p4 : CHECK
THE PAL SIGNAL AT BOTH REAR
SCREENS

G240121t14 : CHECK THE SCREENS AND CIRCUITS USING THE
VIDEO/AUDIO TESTER (PAL)

1. Turn the ignition switch to the ACC position. 2. Set the rear entertainment control panel to AUX1

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 AUX1, video (yellow). 5. Select PAL on the video/audio tester, make sure the blue LED is

illuminated. 6. Observe the rear screen images.

•

Is the PAL test image displayed on both screens?

-> Yes

The signal from the AUX1 system has passed.

-> No

If the test image is only on the left-hand screen, INSTALL a new right-hand screen,

Rear Passenger Entertainment Control Panel (The screen cannot decode a NTSC signal).

If the test image is only on the right-hand screen, INSTALL a new left-hand screen,

Rear Passenger Entertainment Control Panel (The screen cannot decode a NTSC signal).

If the test image is on neither screen, INSTALL two new screens,

Rear Passenger Entertainment Control Panel (The screens cannot decode a NTSC signal).

PINPOINT TEST G240121p5 : CHECK
THE SIGNAL/CIRCUIT THROUGH THE
REAR ENTERTAINMENT CONTROL
PANEL

G240121t15 : CHECK THE SIGNAL THROUGH 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 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. 5. Connect the oscilloscope. Refer to Oscilloscope set-up procedure in this section. 6.

Turn the ignition switch to the ON position. 7. Using suitable adaptors, and an assistant if necessary,

connect the red oscilloscope probe to RC03, pin 18 (probing INTO the control panel). 8. Using

suitable adaptors, and an assistant if necessary, connect the red oscilloscope probe to RC03, pin 20

(probing INTO the control panel).

•

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

-> Yes

GO to Pinpoint Test G240121t16.

-> No

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

, GO to Pinpoint Test G240121p6.

and GO to Pinpoint Test G240121p7.

.

G240121t16 : CHECK THE SIGNAL THROUGH THE REAR ENTERTAINMENT
CONTROL PANEL TO 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 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. 6. Connect the oscilloscope. Refer

to Oscilloscope set-up procedure in this section. 7. Turn the ignition switch to the ON position. 8.

Using suitable adaptors, and an assistant if necessary, connect the red oscilloscope probe to RC04,

pin 18 (YB). 9. Using suitable adaptors, and an assistant if necessary, connect the red oscilloscope

probe to RC04, pin 20 (B).

•

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

-> Yes

GO to Pinpoint Test G240121t18.

-> No

GO to Pinpoint Test G240121t17.

G240121t17 : CHECK THE HARNESS 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. Disconnect the control panel electrical connector, RC03. 4. Measure the resistance between RC03,

pin 18 (YB) and RC04, pin 18 (YB). 5. Measure the resistance between RC03, pin 20 (B) and RC04, pin

20 (B).

•

Is either resistance greater than 5 ohms?

www.

-> Yes

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

-> No

RECHECK all connections and harnesses, as no fault has been confirmed. TEST the system for normal

operation.

G240121t18 : CHECK THE HARNESS BETWEEN TL86 AND RC04 FOR
CONTINUITY

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

3. Disconnect the audio video selector electrical connector, TL86. 4. Measure the resistance between

RC04, pin 18 (YB) and TL86, pin 18 (YB). 5. Measure the resistance between RC04, pin 20 (B) and

TL86, pin 20 (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 G240121t19.

G240121t19 : 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 the control panel electrical

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 G240121t20.

-> No

GO to Pinpoint Test G240121t25.

G240121t20 : 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 the 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 G240121t21.

-> No

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

G240121t21 : CHECK THE AC ON/OFF CONTROL TO THE AUDIO VIDEO
SELECTOR MODULE AT THE CONTROL PANEL

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.

•

Is the resistance greater than 5 ohms?

-> Yes

GO to Pinpoint Test G240121t22.

-> No

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

G240121t22 : CHECK THE ACCESSORY POWER SUPPLY TO THE CONTROL
PANEL

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

connector, RC01. 3. Turn the ignition switch to the ACC position. 4. Measure the voltage between

RC01, pin 07 (YU) and GROUND.

•

Is the voltage less than 10 volts?

-> Yes

REPAIR the circuit between RC01, pin 07 and battery. This circuit includes the primary junction box

(fuse 20). For additional information, refer to the wiring diagrams.

-> No

GO to Pinpoint Test G240121t23.

G240121t23 : CHECK THE PERMANENT POWER SUPPLY TO THE CONTROL
PANEL

1. Turn the ignition switch to the OFF position. 2. Measure the voltage between RC01, pin 04 (RW)

and GROUND.

•

Is the voltage less than 10 volts?

www.