Question about Mag Innovision LT982s 19" Flat Panel LCD Monitor
I see my wall paper for a second then screen goes white, it also makes a wierd high pitch sound kinda like when you turn a TV on, it even does this when it is completely unpluged from CPU.?
Based on your post/description, I can only suspect the SMPS (Switch Mode Power Supply) is acting up. This is also possible if something in its load side is drawing too high a current. Alternately, it can be a capacitor(s) in the same SMPS which causes malfunction.
I will initially rule out the inverter and/or the CCF Lamps since as you posted the screen goes white indicating that there is a backlight(s) and it is receiving power from the inverter.
If the unit is relatively new and under warranty, it may be to your advantage to have it replaced or seek the services of their Service Center. Should you want to do a DIY, it would be required that you be familiar with electronic circuitry and components, use of a DVM and a soldering iron and access to a service manual or at least a schematic diagram.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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Posted on Mar 10, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
Feb 05, 2011 | ViewSonic OptiQuest Monitor
Basic LCD monitor troubleshooting guide:
Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague Replacement board: http://www.lcdrepair.us
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Replacement board: http://www.lcdrepair.us
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