Sharp XG-PH70X - XGA DLP Projector, Service Manual

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XG-PH70X/XG-PH70X-N (1st. Edition)
4 – 7
Checking the Terminal unit.
Check input signal of INPUT1.
Check RGB input signal circuits.
Are there signal at C3031(B), C3038(G) and C3041(R) output?
NO Check C3031(B), C3038(G), C3041(R) and its peripheral circuits.
YES
Are there any sync signal at pin (16) to "B", pin (18) to "G", pin
(20) to "R" of IC3007 output? NO Check IC3007 and its peripheral circuits.
YES
CN3001 is not stable or breakdown.
PC board check
Is the user menu displayed? YES Checking the RGB input.
NO
OSD check Checking the component input.
Checking of VIDEO input.
DVI digital input check.
End.
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