I have a pair of Samsung 215TW monitors. They both had bad caps. I replaced the caps on power board 1 in monitor 1 and tested it. Turned on and then back light shut off right away.
I replaced the caps in power board 2 and tested it in monitor 1, same problem, back light turns off.
I then put repaired power board 1 into monitor 2 and tested it, monitor 2 works flawlessly with power board 1. I then swapped repaired power board 1 with repaired power board 2 and tested monitor 2, still works flawlessly.
Tried testing both of the power boards back into monitor 1 and still had light shut off within a second.
Now I am trying to get monitor 1 running.
Putting either repaired power board into the monitor does nothing. Blue light comes on and screen flickers but then goes dark with image showing if you hold a light to it.
I then tore apart a Samsung 24 inch monitor that had a smashed screen and known good backlights. I then tried swapping out the backlights on the 215tw with the known good lights and the lights turn on but turn off within a second. However the known good lights on the 24" samsung are MUCH bigger than the 21" samsungs. Is that an issue?
I'm just not sure where to go now. I have 2 known good powerboards and the same symptoms on the bad monitor with either board.
I'm just thinking that maybe the 24" bulbs are too big and the driver circuit can't drive them. I can go back to the recycling center and look for a smaller smashed monitor to rob some backlights from, should I or would that not make any difference?
I replaced the caps in power board 2 and tested it in monitor 1, same problem, back light turns off.
I then put repaired power board 1 into monitor 2 and tested it, monitor 2 works flawlessly with power board 1. I then swapped repaired power board 1 with repaired power board 2 and tested monitor 2, still works flawlessly.
Tried testing both of the power boards back into monitor 1 and still had light shut off within a second.
Now I am trying to get monitor 1 running.
Putting either repaired power board into the monitor does nothing. Blue light comes on and screen flickers but then goes dark with image showing if you hold a light to it.
I then tore apart a Samsung 24 inch monitor that had a smashed screen and known good backlights. I then tried swapping out the backlights on the 215tw with the known good lights and the lights turn on but turn off within a second. However the known good lights on the 24" samsung are MUCH bigger than the 21" samsungs. Is that an issue?
I'm just not sure where to go now. I have 2 known good powerboards and the same symptoms on the bad monitor with either board.
I'm just thinking that maybe the 24" bulbs are too big and the driver circuit can't drive them. I can go back to the recycling center and look for a smaller smashed monitor to rob some backlights from, should I or would that not make any difference?
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