Hitachi DV-DS163E Service Manual page 37

Details of Servicing and Troubleshooting > Troubleshooting
(6) VIDEO Circuit
When playing disc,
no RGB / COMPONENT video signal.
NO
PVM01 Pin2,6,10 :
Is there a signal?
YES
NO
IC802 Pin18,21,24 :
Is there a signal?
YES
Check SW801 statue &
SW801 pin2(RGB_SEL).
When playing disc,
no COMPOSITE video signal.
NO
PVM01 Pin14,18,22 :
Is there a signal?
YES
< AV1/AV2 >
< AV3 >
Check MAIN P.C.B, and
replace if necessary.
NO
IC802 Pin1,16 : 5.3V
YES
Check IC802, and
replace if necessary.
Check MAIN P.C.B, and
replace if necessary.
NO
IC802 Pin30 :
Is there a signal?
YES
NO
IC803 Pin29,30 :
Is there a signal?
YES
Check JK801, and
Cable connections.
NO
IC802 Pin29 :
Is there a signal?
YES
Check JK802, and
Cable connections.
3 - 17
Check SMPS Circuit.
NO
IC802 Pin1,16 : 5.3V
YES
Check IC802, and
replace if necessary.
IC803 Pin2,4(VCC) : 12V
NO
IC803 Pin32,33
(SCL/SDA) :
YES
Check IC803, and
replace if necessary.
NO
IC802 Pin1,16 : 5.3V
YES
Check IC802, and
replace if necessary.
Check SMPS Circuit.
Check IC707 and
SW_12VG power supply.
Check SMPS Circuit.