Question about ViewSonic VX924 19" LCD Monitor
This is a generic symptom that could happen to any LCD
The following is a generic answer applicable to most.
The most possible causes are bad capacitors or a bad semi-conductor.
Open the unit and check to see if any of the capacitors in the power supply or other boards look domed or vented on the top.
Replace any capacitors accordingly. Use the same value capacitors. Most often, 1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
If this doesn’t solve the problem, try checking the surface-mount transistors on the inverter board that run the lights. Some times these transistors go bad and can cause the power to cycle up and down. Check the area for any cracked or overheated ceramic or mylar capacitors.
Don’t forget to check for caps on the main board. Some times these boards are overly simple and only have a couple of caps, but other times they are teaming with them.
Posted on Feb 14, 2008
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Posted on Jan 02, 2017
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