Hello to all,
I have a problem with monitor that is delivered together with CCTV system.
The monitor appears to be completely dead, there is no LED power diode and it doesn't react to pressed power button.
I have disconnect display and check many components on the power supply part of the board. There is no anything obvious and monitor is about 3 years old. There are no bulged caps. When measuring voltages on the output connector to VGA board I can measure stable 14.5 V on 12V pins and stable 5.07V on 5V pins. So I assumed that this part of the board is OK.
I have found that on the power LED I have only about 1.4V and this voltage is not stable, it seems to fluctuate between 1 and 1.4V.
I guess problem is somewhere on the VGA/HDMI board.
Is there anything else I can check?
I have attached the picture of the boards.
Thank you.
I have a problem with monitor that is delivered together with CCTV system.
The monitor appears to be completely dead, there is no LED power diode and it doesn't react to pressed power button.
I have disconnect display and check many components on the power supply part of the board. There is no anything obvious and monitor is about 3 years old. There are no bulged caps. When measuring voltages on the output connector to VGA board I can measure stable 14.5 V on 12V pins and stable 5.07V on 5V pins. So I assumed that this part of the board is OK.
I have found that on the power LED I have only about 1.4V and this voltage is not stable, it seems to fluctuate between 1 and 1.4V.
I guess problem is somewhere on the VGA/HDMI board.
Is there anything else I can check?
I have attached the picture of the boards.
Thank you.
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