Hitachi P50T01E - RF, Composite & S-Video Troubleshooting

18
P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E
[Picture: RF (analog) troubleshooting]
RF (analog tuner)
e
Yes
Yes
Are waveforms at
pin10 (SCL) /11(SDA) of UT01 (tuner) of
Terminal PCB normal?
No
Change UT01 of Terminal PCB
Are waveforms at
pin17 (VIDEO_OUT) of UT01(tuner) of
Terminal PCB normal?
Yes
No
Change UT01 of Terminal PCB
No
Are voltages of pin3(+5V)/15(30.7) of
UT01(tuner) of Terminal PCB normal?
Change MAIN PCB
No
Are waveforms at
Pin6(CV output) of IM06 of MAIN PCB
normal?
Yes
Change MAIN PCB
If no improvement,
change Terminal PCB
Change Terminal PCB
If no improvement,
change MAIN PCB