Sanyo NV-E7500 - Navigation System With DVD Player Service Manual page 24

TROUBLE SHOOTING
NAVI
Confirm the signal at pin 1,9,14 of IC8
and pin 5 of IC11.
NO
NAVI BLOCK
DVD
Confirm the signal at pin 8,11,16 of IC8
and pin 3 of IC11
NO
DVD BLOCK
Then check around IC2010.
Confirm connect on of SP is correnct.
YES
Confirm CN4 and CN1001 are
insert correctly.
YES
Confirm the signal at pin 13,24 of IC14.
NO
Confirm the signal at pin 5,8 of IC14.
NO
Confirm pin 9,10 of IC13 is changed
correctly by mode.
YES
VIDEO
Then check around
IC8 and IC11.
Then check around
IC8 and IC11.
Then connect correctly.
Then insert CN4 and CN1001
correctly.
Then check around IC14 and JK4.
Then check around IC14.
Then check around IC1 and IC13.
pin10 pin9 MODE
H L NAVI
L H VIDEO
H H DVD
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