Hitachi P50T01E Service Manual page 20

[Picture: Composite & S-video troubleshooting]
[Picture: RGB & Component troubleshooting]
g
RGB
Does a phenomenon appear
if you change a SCART
cable?
Yes
Are waveforms at
Pin5(R output), 6(G output),
3(B output) of IM04 of MAIN
PCB normal?
Yes
Change MAIN PCB
P50T01U/E P50TP01U/E P42T01U/E P42TP01U/E
f
Composite and S-video
Does a phenomenon appear
if you change a RCA or Mini
DIN cable?
Yes
Are waveforms at
Pin6(CV output) of IM06 of MAIN PCB
normal?
Yes
Change MAIN PCB
No
Change SCART cable
No
Change MAIN PCB
If no improvement,
change Terminal PCB
No
Change RCA or Mini DIN cable
No Change MAIN PCB
change Terminal PCB
h
Component
Does a phenomenon appear
if you change a RCA cable?
Yes
Are waveforms at
Q002 (Pb output)/Q003 (Pr
output)/Q005 (Y output) of MAIN
PCB normal?
Yes
Change MAIN PCB
19
If no improvement,
No
Change RCA cable
No
Change MAIN PCB
If no improvement,
change Terminal PCB