Q7C3 LCD Monitor Service Guide
Circuit Operation Theory
8
A-3.) Control board introduction:
The main parts of the control board are a push button, and a LED.
(a) Push button:
It’s a simple switch function, pressing it for “ON” to do the auto adjustment
function, releasing it for “OFF” to do nothing.
(c) LED:
It indicates the DPMS status of this LCD monitor; green light means DPMS on
(Normal operating condition). Amber light means DPMS off (Power off condition).
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