Aiwa xc-rw700 Service Manual page 82

TROUBLESHOOTING - 19/26
QQ
3 7 63 1515 0
TE
L 13942296513
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.
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LD CHECK (Not Read)
E
YES
Execute E.LD On of How to use
Test Tool(Dragon) : VRDC Loop
[Read Mode]
YES
CN401 Pin 32(ENBL)=H?
YES
IC401
Pin 12(RREF):
0.8+/-0.3V?
YES
IC401 Pin 16(FPDO) :
2.9+/-0.3V?
YES
CN401
Pin 25(VRDC):
0.9+/-0.5V?
YES YES
Check the P/U connector and
then replace the P/U
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y
i
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8
NO
Check the connection of IC601 pin 20.
Check and replace the IC601(CPLD).
NO
Check the connection of IC409 pin 18.
Check and replace the IC409(DAC).
Check the connection of CN401 pin 19.
NO
Check and replace the CN401, PICK
UP.
Q Q
3 6 7 1 3
NO
Check the connection of IC401 pin 13.
Check and replace the IC401.
Execute C.LD Inspection of
How to use Test Tool(Dragon)
YES
YES
VRDC NG?
u163
.
-82-
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
Normal
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co
9 9
2 8 9 9