Hitachi P50T01E Service Manual page 19

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