Sharp XG-NV1E, Руководство по обслуживанию

Страница: 29 / 66

XG-NV1E
XG-NV1EA
TROUBLE SHOOTING TABLE
(Continued)
29
Checking synchronization
No
No
Yes
Yes
Yes
No
Are there signal outputs at pins
(3)(IN+) of IC2003 and IC2004?
Are there signal outputs at pins
(15)(H) and (217)(V) of IC1201?
Do horizontal and vertical sync
signals (at pins (13) and (14) of RGB
connector) come out of PC?
Are there signal outputs at pins
(6)(X1/EXT) and (22)(EXFBK) of
IC1013?
Connector or nearby circuit in trouble.
Go to "Checking the PLL circuit".
IC2003, IC2004 or nearby circuit in
trouble.
No
Yes
Yes
No
Is there signal output at pin (3)(IN+)
of IC2005?
Is there signal output at pin (216)(C)
of IC1201?
Connector or nearby circuit in trouble.
Go to "Checking the PLL circuit".
IC2005 or nearby circuit in trouble.
No
Yes
Yes
No
Is there signal output at pin
(15)(DOTCLK) of IC1013?
Check the sync circuit and its
peripheral parts.
IC1201 or nearby circuit in trouble.
IC1013, IC1201 or nearby circuit in
trouble.
Checking the PLL circuit