Compaq MV-920 Service Manual page 90

5-1-18 OSD Failure
Check CN102 and connector Ass'y.
IC103 (17": IC04) Pin 17 input is
right?
IC103 (17": IC04) Pin 6 input is
right?
IC103 (17": IC04) Pins 7 and 8
inputs are right?
IC103 (17": IC04) Pins 20, 21 and
22 outputs are right?
(17" only)
IC101 (17": IC104) Pins 4, 9 and 13
inputs are right?
Check and replace IC101 (17": IC104) .
Done
PG17**/PG19**/PG21**
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Check and replace D302 and Q301.
Check and replace Q104 (17": Q103) .
Check IC201 Pins 41 and 42.
Check and replace IC103 (17": IC04) .
Check and replace QB51,
QG51 and QR51.
5 Troubleshooting
5-11