Infiniti G37 Coupe. Manual — part 104
AV
RGB SYNCHRONIZING SIGNAL CIRCUIT
AV-169
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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RGB SYNCHRONIZING SIGNAL CIRCUIT
Description
INFOID:0000000001559030
Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.
Diagnosis Procedure
INFOID:0000000001559031
1.
CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector terminal 19 and AV control unit harness connec-
tor terminal 41.
4.
Check continuity between display unit harness connector terminal 19 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB SYNCHRONIZING SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal 19 and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
19 - 41
: Continuity should exist.
19 - Ground
: Continuity should not exist.
19 - Ground
SKIB3603E
AV-170
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
RGB AREA (YS) SIGNAL CIRCUIT
RGB AREA (YS) SIGNAL CIRCUIT
Description
INFOID:0000000001559032
Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display
unit.
Diagnosis Procedure
INFOID:0000000001559033
1.
CHECK CONTINUITY RGB AREA (YS) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector terminal 9 and AV control unit harness connec-
tor terminal 43.
4.
Check continuity between display unit harness connector terminal 9 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK RGB AREA (YS) SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal 9 and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
9 - 43
: Continuity should exist.
9 - Ground
: Continuity should not exist.
Terminal
Condition
Reference value
9 - Ground
Ignition
switch
ON
At RGB image is displayed
: Approx. 5 V
At AUX image is displayed
PKIB4948J
AV
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
AV-171
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
D
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F
G
H
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M
B
A
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HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
Description
INFOID:0000000001559034
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images dis-
played with AV control unit such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000001559035
1.
CHECK CONTINUITY HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector terminal 8 and AV control unit harness connec-
tor terminal 45.
4.
Check continuity between display unit harness connector terminal 8 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK HORIZONTAL SYNCHRONIZING (HP) SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal 8 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace display unit.
8 - 45
: Continuity should exist.
8 - Ground
: Continuity should not exist.
8 - Ground
SKIB3601E
AV-172
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
Description
INFOID:0000000001559036
In composite image (AUX image, camera image), transmit the vertical synchronizing (VP) signal and horizon-
tal synchronizing (HP) signal from display unit to AV control unit so as to synchronize the RGB images dis-
played with AV control unit such as the image quality adjusting menu, etc.
Diagnosis Procedure
INFOID:0000000001559037
1.
CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect display unit connector and AV control unit connector.
3.
Check continuity between display unit harness connector terminal 20 and AV control unit harness connec-
tor terminal 57.
4.
Check continuity between display unit harness connector terminal 20 and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector terminal 20 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace display unit.
20 - 57
: Continuity should exist.
20 - Ground
: Continuity should not exist.
20 - Ground
SKIB3598E
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