Hitachi PJ-TX100 Service Manual page 15

PJ-TX100(C11H)
Picture is not displayed only
when the RGB signal is input
Check at operating mode
Are
voltage input
at pins , , ,
1 3 5 7
E800 on the PWB
assembly
Main?
YES
PWB assembly Main
Picture is not displayed only when the
VIDEO, S-VIDEO, Component Signal is input
Check at operating mode
Are
voltage input at
pins , , , 7 of
1 3 5
E800 on the PWB
assembly Main?
YES
Is the
signal waveform
observed on the output
pins of IV03 ?
YES
At Video selected :
At S-video selected :
At Component video selected :
PWB assembly Main
of
NO
1 : +12V
3 : +17V
5
:+6.6V
7 :+4.1V
LCD panel
NO
: +12V
1
3 : +17V Power unit (circuit)
5 : +6.6V
7 : +4.1V
NO
SM5301BS (IC)
17
,
11 14
,
11
LCD module assembly
15
Power unit
(circuit)
,
14 17
TE 8200 PF (IC)