Read Sharp XG-V10WE (serv.man8) Service Manual online
42
XG-V10WE
AN-SD1E/S422E
TROUBLE SHOOTING TABLE
(Continued)
No or unusual Y signal
Yes
No
Go back to the signal processing
block.
block.
No
Check IC803 and its peripheral
circuits.
circuits.
Yes
No
Check IC804 and its peripheral
circuits as well as IC806 (AGC).
circuits as well as IC806 (AGC).
Yes
Check IC804 and its peripheral
circuits.
circuits.
Is there Y signal output at pin (17) of
IC804?
IC804?
Is there Y signal output at pin (40) of
IC803?
IC803?
Is there Y signal input at pin (21) of
IC803?
IC803?
No or unusual horizontal sync
Yes
No
Check IC803 and its peripheral
circuits.
circuits.
Yes
No
Is there horizontal sync pulse output
at pin (9) of IC802?
at pin (9) of IC802?
Check the pulse shaping circuit of
IC801 and IC802.
IC801 and IC802.
Go to "Trouble shooting table for PC
I/F unit".
I/F unit".
Is there horizontal sync pulse output
at pin (56) of IC803?
at pin (56) of IC803?
No or unusual vertical sync
No
Check IC803 and its peripheral
circuits.
circuits.
Yes
Go to "Trouble shooting table for
PC I/F unit".
PC I/F unit".
Is there vertical sync pulse output at
pin (4) of IC803?
pin (4) of IC803?
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