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TROUBLE SHOOTING
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26
NAVI
DVD
MODE?
D
F
VIDEO
C
B
A
NAVI
E
DVD
VIDEO
Confirm the signal at pin 3 of IC053.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Then check around IC053.
No
No
No
No
No
No
No
No
Then check around JK310.
Confirm the signal at pin 1,9,14 of
IC051 and pin 5 of IC054.
Then check around
IC051 and ICO54.
NAVI BLOCK
Confirm the signal at pin 8,11,16 of
IC051 and pin 3 of IC054.
Then check around IC051 and ICO54.
DVD BLOCK
Then check around IC
751,
NO SOUND
Confirm connecti on of SP is correct.
Then connect correctly.
Confirm CS051and CS402 are
inserted correctly.
Then insert CS051and CS402
correctly.
Confirm the signal at pin 13,24 of IC270.
Then check around IC270 and JK270.
Confirm t he signal at pin 5,8 of IC270.
Then check around IC270.
Confirm pin 9,10 of IC250 is changed
correctly by mode.
Then check around IC501 and 250.
pin10 pin9 MODE
H L NAVI
L H VIDE
O
H H DVD
IC701,Q754,Q755 and Q756.