Hitachi DV-DS163E Service Manual page 40

Details of Servicing and Troubleshooting > Troubleshooting
No DV(IEEE 1394)
INPUT (video/audio) signal
NO
PVM02 Pin22,24,25,27 :
Is there a signal?
YES
NO
DV-mode switching?
YES
Is Vcc (3.3V)
NO
supplied to
PVM02 Pin19,21?
YES
Is Vcc (1.25V)
NO
supplied to
PVM02 Pin28,30?
YES
NO
Is Vcc (2.5V)
supplied to PVM02 Pin6?
YES
NO
Is Vcc (1.8V)
supplied to PVM02 Pin10?
YES
NO
Is Vcc (5V)
supplied to PVM02 Pin23?
YES
Check MAIN P.C.B, and
replace if necessary.
Check JK808,
Cable connections
& Input signal.
Change to DV-mode.
Using Remote Control
Check 3.3V
power supply.
Check 1.25V
power supply.
Check 2.5V
power supply.
Check 1.8V
power supply.
Check 5V
power supply.
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