Sharp XG-C40XU Anleitung Seite 36

XG-C40XU/XE
TROUBLE SHOOTING TABLE
No or unusual Y signal
Is there Y signal input at pin (21) of
IC801?
Is there Y signal output at pin (40) of
IC801?
Is there Y signal output at pin (17) of
IC803?
Check IC803 and its peripheral
circuits.
No or unusual horizontal sync
Is there horizontal sync pulse output
at pin (56) of IC801?
Is there horizontal sync pulse output
at pin (9) of IC603?
Check
circuits, and go to "Trouble shooting
table for PC I/F unit".
No or unusual vertical sync
Is there vertical sync pulse output at
pin (4) of IC801?
Check
circuits, and go to "Trouble shooting
table for PC I/F unit".
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
IC604 and its peripheral
No
Yes
IC604 and its peripheral
(Continued)
Go back to the signal processing
block.
Check IC801 and its peripheral
circuits.
Check IC803 and its peripheral
circuits as well as IC805 (AGC).
Check IC801 and its peripheral
circuits.
Check the pulse shaping circuit of
IC602 and IC603.
Check IC801 and its peripheral
circuits.
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