SOURCE: Sony SDM-HS74P/S 17 - Monitor won't stay on the right picture
When the screen turns black again take a flashlight and shine it in the bottom left hand corner where the Windows Start button is located. If you can see a faint image then your back light is failing. If that?s not the case the next step would be to attach another monitor to your computer to see if the problem disappears. If it does that points to the monitor, if it doesn?t then we need to take a look at the computer itself. Let us know what you find out and please don?t forget to rate this posting.
SOURCE: MY SONY SDM-HS74P
You open the inverter unit and check any dry soldering is there. Some times dry joints inside the inverter unit cause this type of problems.
SOURCE: Sony SDM HS74P Screen Stays on for approx 15 seconds then shuts off but power light is still on?
PWI17LS285A, ACTUALLY THE CAPACITORS DOES NOT KEEP ENOUGH CHARGE TO KEEP THE LCD WORK...
so the big capicitor needs to replaced? 100µF 450V
SOURCE: black screen with message about no input signal
might be something wrong with your monitor's data cable
SOURCE: no input signal
Make sure that the correct cable is used vga to vga or dvi to dvi..... try some different cable.... try a monitor slf test you cannot access it by just removing the monitor cable..... if do get the test the monitor is bad
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