Compaq MV-920 User Manual

5 Troubleshooting
PG17**/PG19**/PG21** 5-7
5-1-12 V Size or Pos. Variation Failure
IC261 Pin 23 output varies with
different DAC values?
Yes
Check some parts around IC301.
Check bias voltage.
Check and replace IC261 and IC301.
No
5-1-13 High Voltage Failure
Q524 gate driving pulse exist?
Check +12 V line.
Check and replace Q521, Q522, Q523,
Q524 and IC501.
Yes
No
Done

Compaq MV-920 Specifications

General

Brand	Compaq
Model	MV-920
Category	Monitor
Language	English