Re: Samsung SyncMaster 2493HM black screen with power
Hi. I am having blank screen problem with the same monitor. Had to replace a power supply cap recently, and now no screen. Also, I had an arc sound with a flickering from back light. Had to resolder one of those inductor things in the inverter board. If you turned the olights off you could even see the arc. Whats happening with the quality control from samsung?
I tested the voltage in the on/off line, my cheapo non exact multimeter read 0.28 volts on that line. The 24v rails all of them have power. The first and second (EX-PWM and A-DIM) read 0 volts.
Any word on this??? Could not see anything with a flashlight on the screen...
I am attaching some pics of the inverter board.
Hi. I am having blank screen problem with the same monitor. Had to replace a power supply cap recently, and now no screen. Also, I had an arc sound with a flickering from back light. Had to resolder one of those inductor things in the inverter board. If you turned the olights off you could even see the arc. Whats happening with the quality control from samsung?
I tested the voltage in the on/off line, my cheapo non exact multimeter read 0.28 volts on that line. The 24v rails all of them have power. The first and second (EX-PWM and A-DIM) read 0 volts.
Any word on this??? Could not see anything with a flashlight on the screen...
I am attaching some pics of the inverter board.
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