A great deal of possibilities can go incorrect with your damage Lcd Monitor. The faulty keep track of might endure power reduction, the display monitor might shutdown intermittent, there may probably be Lcd lifeless pixels, CCFL inverter circuit or Lcd CCFL inverter might possibly split down or the display display may not turn on or irregular CCFL inverter voltage. There are lots of issues that can arrive about that can cause you a headache.
Blame it on defective Lcd panel. That’s correct! Bad Lcd panel is usually the aspect of this issue. There’s very little you can do about it. You can read all the Dell Liquid crystal display restore manuals in the globe, and it won’t make any distinction.
You see, I came across this downloadable restore guide and it assisted me solve tons of Liquid crystal display صيانة شاشات سامسونج problems. What’s great about it is that it contains a ton of step-by-step pictures so a hardcore visual learner like yours really can follow along effortlessly.
A defective primary board may cause no display issue in Liquid crystal display Monitor. If there is a problem in the primary board, it would not deliver a “on” (allow) signal to the soft begin circuit and no voltage will flow to the inverter IC therefore no waveform create by the higher voltage transformer.
After opened up the include, I check the on/off sign from the mainboard to the inverter board. With sign cable in, there was no on/off signal to the inverter board but when the signal cable was disconnected, you could see clearly from your meter there is a on/off signal going into the inverter board thus the show appeared with the verify sign OSD present at the show. From this test, it is extremely apparent is the primary board issue.
The first step is to check the main or main segment. Test all components in that region, especially the power FET, ampere primary fuse and PWM IC. I’ve encountered this problem many times prior to and more often than not, the issue lies with these components.
If there’s completely no voltage present, then the problem lies with the power supply. On the other hand, if voltages flow to the main board however the LED indicator does not seem, then you have a problematic main board in your hands.