My samsung 56 v monitor does not turn on when I power on my computer . I have to press ON/OFF switch repeatedly for several times to turn it on about 25-30 or more time. But sometimes it turns on in just second attempt. please suggest the solution. it is 4 yrs old.
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It sounds like your monitor has bad capacitors in the power supply that are slow to charge up. Repeatedly turning the power on as you do eventually charges them to the point where the monitor comes on. It isn't clear from your description if the monitor works properly when it finally comes on, so I don't know if it has other problems as well.
The shop you took it to probably didn't want to be bothered trying to diagnose the bad parts, because it's not economical to repair. They would need to charge you more for the repair parts and labor than the monitor is worth, and it's impossible to tell what other parts are ready to fail because of their age. I don't blame them. New LCD monitors are inexpensive, and it would probably cost less to buy a new one than to fix your CRT monitor.
Please check that all the cables are plugged in firmly on the back of the monitor and on the back of the computer.
It sounds like the back light on the screen is faulty. If this is the case it is definitely a return for repair problem. You should be able to find the warrantly procedure for your area on the samsung website.
Dude u knows the repairing part of the monitor or u knows the basic electronics… You need to do one thing that is open the CRT i.e. Monitor and after that remove the On/OFF switch u can open the switch and clean it …. Or Replace the switch by new one….