My monitor shows only for about 2 seconds display, but is not switched off. When i press off/on it switches back on, but again only for about 2 seconds. The other monitor shows only red display.
There are two problems, screen goes black after 2 seconds, red only. The problem is in the video processing board located on the back of the picture tube, it is well shielded against outside interference.
SOURCE: BenQ FP51g LCD monitor
Dear Friend:
There is a Switch transistor to power on -off the hi voltaje for lights. Check 15V from power source go to this transistor colector, Using soldering Iron, make a juntion between colector and emiter, to short 15V to Hi voltaje power. I´m fixing 10 monitor the same trouble. I will remove a liter transistor.
Late I will post here the driver transistor number, and the replace number transistor I will use.
Pictures , etc. Best Regard
SOURCE: problem with samtron 56v 15" monitor
IT IS REULATION COMPLIANT PLEASE CHANGE THE 7805REGULATOR IC NEAR THE MEMORY IC
SOURCE: IC POWER CM2017 LCD MONITOR
Normally when this type of problem happens, the first suspect would be the inverter board, then the filter capacitors and lastly the mainboard.
A defect in one of the lamps and faulty inverter IC may cause the display to shutdown as well. If the lamp is defective, it will send a feedback and cause it to stop producing output signal thus the display just shut off once you switch in ON.
SOURCE: Monitor displays desktop for a short while
this kind of trouble is very common to all LCD monitors. your inverter is shutting down. please check all capacitors at the power supply some are badged or blown on top due to hot pressure inside.
SOURCE: Samsung 931B
possible you have a loose connection in the cables.
try disconnecting and reconnecting a few times.
if there are smokers near the pc they can get pretty dirty with nicotine
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