Hitachi CP-S335W, Service Manual

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CP-S335(C9SM)/CP-X340, PJ552 (C9X)/CP-X345, PJ562 (C9XM)
Picture is not displayed only
when the RGB signal is input
PWB assembly MAIN
LCD/LENS PRISM
assembly
Check at operating mode
Power unit
(circuit)
NO
NO
NO
YES
YES
YES
Are
voltage input
at pins(1)(3)(5)(7) of
E800 on the PWB
assembly
MAIN?
(1):+13.2V
(3):+17V
(5):+6.6V
(7):+4.1V
Are the
proper waveform
observed at the pins (4)
and (5) of the IS02?
Are the
proper waveforms
observed at the pins
(10),(13) and (15) of
the IT02?
IS02
EL83021U(IC)
IT02 or IT03
SN74F157(IC)
Power unit (circuit)
NO
YES
Are
voltage input at
pins(1)(3)(5)(7) of E800
on the PWB assembly
MAIN?
(1): +13.2V
(3): +17V
(5): +6.6V
(7): +4.1V
PWB assembly MAIN
LCD/LENS PRISM
assembly
Check at operating mode
Picture is not displayed only when the
VIDEO, S-VIDEO, Component Signal is input