Infiniti EX35. Manual — part 112
AV
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
AV-229
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
C
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HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
Description
INFOID:0000000003544775
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:0000000003544776
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 and AV control unit harness connector.
4.
Check continuity between display unit harness connector 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 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace display unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
8
M83
45
Existed
Display unit
Ground
Continuity
Connector
Terminal
M71
8
Not existed
(+)
(
−
)
Reference value
Display unit
Connector
Terminal
M71
8
Ground
SKIB3601E
AV-230
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT
Description
INFOID:0000000003544777
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:0000000003544778
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 and AV control unit harness connector.
4.
Check continuity between display unit harness connector 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 and ground.
Is the inspection result normal?
YES
>> Replace AV control unit.
NO
>> Replace display unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
20
M83
57
Existed
Display unit
Ground
Continuity
Connector
Terminal
M71
20
Not existed
(+)
(
−
)
Reference value
Display unit
Connector
Terminal
M71
20
Ground
SKIB3598E
AV
AUX IMAGE SIGNAL CIRCUIT
AV-231
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
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AUX IMAGE SIGNAL CIRCUIT
Description
INFOID:0000000003544779
• Transmits the image signal of AUX device from auxiliary input jacks to AV control unit.
• AV control unit transmits the image signal that is inputted to the display unit.
Diagnosis Procedure
INFOID:0000000003544780
1.
CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT (AUX INPUT JACKS AND AV CONTROL UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect auxiliary input jacks connector and AV control unit connector.
3.
Check continuity between auxiliary input jacks harness connector and AV control unit harness connector.
4.
Check continuity between auxiliary input jacks harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair harness or connector.
2.
CHECK AUX IMAGE SIGNAL (AUX INPUT JACKS TO AV CONTROL UNIT)
1.
Connect display unit connector and AV control unit connector.
2.
Turn ignition switch ON.
3.
Check signal between auxiliary input jacks harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check that there is no malfunction in the external device.
3.
CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT AND DISPLAY UNIT)
1.
Turn ignition switch OFF.
2.
Disconnect auxiliary input jacks connector and AV control unit connector.
3.
Check continuity between display unit harness connector and AV control unit harness connector.
Auxiliary input jacks
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M154
7
M84
66
Existed
Auxiliary input jacks
Ground
Continuity
Connector
Terminal
M154
7
Not existed
(+)
(
−
)
Condition
Reference value
Auxiliary input jacks
Connector
Terminal
M154
7
Ground
At AUX image is displayed.
SKIB2251J
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
15
M83
36
Existed
AV-232
< COMPONENT DIAGNOSIS >
[BOSE AUDIO WITHOUT NAVIGATION]
AUX IMAGE SIGNAL CIRCUIT
4.
Check continuity between display unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK COMPOSITE IMAGE SIGNAL
1.
Connect AV control unit connector and display unit connector.
2.
Turn ignition switch ON.
3.
Check signal between display unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
Display unit
Ground
Continuity
Connector
Terminal
M71
15
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M71
15
Ground
At AUX image is displayed.
SKIB2251J
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