Sharp XG-NV2SB Service Manual page 36

XG-NV2SB
TROUBLE SHOOTING TABLE
No or unusual horizontal sync
Is there horizontal sync pulse output
at pin (56) of IC801?
Yes
Is there horizontal sync pulse output
at pin (9) of IC603?
Yes
Check IC604 and its peripheral
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?
Yes
Check IC604 and its peripheral
circuits, and go to "Trouble shooting
table for PC I/F unit".
No
Check IC801 and its peripheral
circuits.
No
Check the pulse shaping circuit of
IC602 and IC603.
No
Check IC801 and its peripheral
circuits.
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