Read Sharp XG-XV2E (serv.man2) Service Manual online
43
XG-XV2E/M/A
TROUBLE SHOOTING TABLE
(Continued)
No or unusual horizontal sync
Yes
No
Check IC801 and its peripheral
circuits.
circuits.
Yes
No
Is there horizontal sync pulse output
at pin (9) of IC603?
at pin (9) of IC603?
Check the pulse shaping circuit of
IC601, IC602 and IC603.
IC601, IC602 and IC603.
Check IC604 and its peripheral
circuits, and go to "Checking the clock
circuit and its peripheral circuits".
circuits, and go to "Checking the clock
circuit and its peripheral circuits".
Is there horizontal sync pulse output
at pin (56) of IC801?
at pin (56) of IC801?
No or unusual vertical sync
No
Check IC801 and its peripheral
circuits.
circuits.
Yes
Check IC604 and its peripheral
circuits, and go to "Checking the clock
circuit and its peripheral circuits".
circuits, and go to "Checking the clock
circuit and its peripheral circuits".
Is there vertical sync pulse output at
pin (4) of IC801?
pin (4) of IC801?
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