Infiniti EX35. Manual — part 69
AV
RGB (B: BLUE) SIGNAL CIRCUIT
AV-57
< COMPONENT DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
RGB (B: BLUE) SIGNAL CIRCUIT
Description
INFOID:0000000003508400
Transmit the image displayed with AV control unit with RGB signal to the display unit.
Diagnosis Procedure
INFOID:0000000003508401
1.
CHECK CONTINUITY RGB (B: BLUE) 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 RGB (B: BLUE) 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 display unit.
NO
>> Replace AV control unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
18
M83
38
Existed
Display unit
Ground
Continuity
Connector
Terminal
M71
18
Not existed
(+)
(
−
)
Condition
Reference value
Display unit
Connector
Terminal
M71
18
Ground
Start confirmation/adjustment
mode, and then display color bar by
selecting “Color Spectrum Bar” on
DISPLAY DIAGNOSIS screen.
SKIB2237J
AV-58
< COMPONENT DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
RGB SYNCHRONIZING SIGNAL CIRCUIT
RGB SYNCHRONIZING SIGNAL CIRCUIT
Description
INFOID:0000000003508402
Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.
Diagnosis Procedure
INFOID:0000000003508403
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 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 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 and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
19
M83
41
Existed
Display unit
Ground
Continuity
Connector
Terminal
M71
19
Not existed
(+)
(
−
)
Reference value
Display unit
Connector
Terminal
M71
19
Ground
SKIB3603E
AV
RGB AREA (YS) SIGNAL CIRCUIT
AV-59
< COMPONENT DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
C
D
E
F
G
H
I
J
K
L
M
B
A
O
P
RGB AREA (YS) SIGNAL CIRCUIT
Description
INFOID:0000000003508404
Transmits the display area of RGB image displayed by AV control unit with RGB area (YS) signal to display
unit.
Diagnosis Procedure
INFOID:0000000003508405
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 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 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 and ground.
Is the inspection result normal?
YES
>> Replace display unit.
NO
>> Replace AV control unit.
Display unit
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
M71
9
M83
43
Existed
Display unit
Ground
Continuity
Connector
Terminal
M71
9
Not existed
(+)
(
−
)
Condition
Reference value
(Approx.)
Display unit
Connector
Terminal
M71
9
Ground
At RGB image is displayed
5.0 V
At AUX image is displayed
PKIB4948J
AV-60
< COMPONENT DIAGNOSIS >
[BASE AUDIO WITHOUT NAVIGATION]
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
HORIZONTAL SYNCHRONIZING (HP) SIGNAL CIRCUIT
Description
INFOID:0000000003508406
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:0000000003508407
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
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