Hi Guys, I've been looking at this repair for a number of days and hope to use it to further my knowledge. However I've reached my current knowledge limit and would be grateful of any help offered.
This fault in a Dell U2410 monitor presents itself as a no power fault. No lights on power button and no change to the screen. I tested the connector and ribbon on the bottom right of the power board and found 3.70 volts on the first four wires from the left and 0.05 volts on the red wire far right. All other wires show 0 volts.
Not knowing if it was the voltage being pulled down by a faulty main board or a low power output from the power supply board I disconnected the main board and retested.
With the main board disconnected from the power board the voltages rise to 5.15 on the left four and 4.68 on the red wire. To me this suggested the power board was running low outputs and 4.68 is still not right. I have tested the caps with an ESR meter in circuit and a couple which gave poor readings removed and tested out of circuit. The highest reading on the cold side was 0.46. The big ‘Elite' on the hot side shows 0.61 when tested in circuit.
I've done a visual inspection of joints and components with nothing unusual noted.
Unfortunately this is where my knowledge ends. Any help much appreciated.
Rodger
This fault in a Dell U2410 monitor presents itself as a no power fault. No lights on power button and no change to the screen. I tested the connector and ribbon on the bottom right of the power board and found 3.70 volts on the first four wires from the left and 0.05 volts on the red wire far right. All other wires show 0 volts.
Not knowing if it was the voltage being pulled down by a faulty main board or a low power output from the power supply board I disconnected the main board and retested.
With the main board disconnected from the power board the voltages rise to 5.15 on the left four and 4.68 on the red wire. To me this suggested the power board was running low outputs and 4.68 is still not right. I have tested the caps with an ESR meter in circuit and a couple which gave poor readings removed and tested out of circuit. The highest reading on the cold side was 0.46. The big ‘Elite' on the hot side shows 0.61 when tested in circuit.
I've done a visual inspection of joints and components with nothing unusual noted.
Unfortunately this is where my knowledge ends. Any help much appreciated.
Rodger
Attached Files
what values has your c932 marked on it and do you have the same voltage on the connecter as Forensic Fixer.
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