Hello, I have thi DP50747-03 found open fuse and shorted diode in power supply. Replaced them but still will not come on suspect U8301 but cannot find the part, identification on iut is 80382 MR4030. Would anyone have this part? or the service manual I would like to repai the board before replacing it.
Thank you
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repairgal, I do have the one for the DP50747-00 not sure what the differences are between the 00 and the 03 I know the difference between the 00 and the 0-1 is the display panel. Anyhow, you may download it from here and see if it helps you out while I continue to look for it. Good Luck
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5 Comments
Thank you OldTurkey0 for your service manual, I hope this will be the same as the one I have. Keep you posted.
by repairgal
Sounds good hope it will work for you. Still looking for the 03 manual
by oldturkey03
repairgal, I did find out that at least these two items are identical
1-J4DJ Main Board DP50747-03
2-Main Logic Control Board Part Number LJ92-01517E
by oldturkey03
Does this look close to what you need?
by oldturkey03
I have the same issue with mine. Diode D8302 was shorted causing fuse F8201 to fail. I have repaired the diode and now the fuse no longer blows but it goes into protection mode. I also suspect U8301 as I have checked surrounding components and all check out fine. I have ordered a replacement MR4030. I feel that should fix the issue but since you are having the same problems I would love to hear the outcome.
by xgenmods