Check The Connection Of Ic310 Pin - NAD C660 Service Manual

LD CHECK (Not Reading)
E
YES
Execute 'E.LD On' of 'How to use
Test Tool(Dragon) : 'VRDC Lop
[Read Mode]'
YES
PN101 Pin 32 (ENBL)=H?
YES
IC108
Pin 12 (RREF):
(0.8+/-0.3V)?
YES
IC108 Pin 16 (FPDO) :
2.9±0.3V?
YES
PN101
Pin 25 (VRDC):
(0.9±0.5V)?
YES YES
Check the P/U connector and
then replace the P/U
NO

•Check the connection of IC310 pin 20.

•Check and replace the IC310 (CPLD).
NO
•Check the connection of IC110 pin 18.
•Check and replace the IC110 (DAC).
•Check the connection of PN101 pin 19.
NO
•Check and replace the PN101, PICK
UP.
NO
•Check the connection of IC108 pin 13.
•Check and replace the IC108.
Execute 'D.LD Inspection' of
'How to use Test Tool (Dragon)'
YES
YES
VRDC NG?
Normal
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