Hitachi DV-DS163E Service Manual page 39

Details of Servicing and Troubleshooting > Troubleshooting
C
NO
IC901 Pin34
on I/O P.C.B
Or R999 (RESET) :
YES
NO
X901 (24.576MHz)
clock oscillated?
YES
NO
2
R962,R978 (I C) :
YES
IC901 Pin108
on I/O P.C.B NO
and R930 :
(VIN_CLK)
Is there a signal?
YES
See "When playing disc, no RGB / COMPONENT video signal"
and "When playing disc, no COMPOSITE video signal"
Check MAIN P.C.B, and
replace if necessary.
Check X901, and
replace if necessary.
Check MAIN P.C.B, and
replace if necessary.
3 - 19
NO
IC901 Pin3,31 : 1.8V
on I/O P .C.B
IC901 Pin4,9 : 3.3V
on I/O P .C.B
YES
Replace I/O P.C.B.
Check 1.8V and 3.3V
power supply.