Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Power supply i am trying to fix the same problem..would you tell me exactly where the power supply is located..i have ordered the caps and a diagram... is it part of the chassis? thanks...steve

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Good day, husker_shoe;
Good question, I will try to help anyway. The boards are on the left side TV looking from the back. It has a shield around it, remove. The caps are big and black, they look the replacements(only ones on board). Here's what says about this issue:

If the LED keeps blinking with connector FC removed suspect a problem on the DM PCB (part # 934C116002). (LED does not stop blinking after plug in) On the DM
Good Luck, big IRISH. ps hope this helpful!
PCB (part # 934C116002) check C81A2, C81A3, C81B3 and C81B4 (1000 uFD, 16V, 105C), if any are bad, replace all of them with part # 181P734030 (680 uFD, 16V, 105C). (LED does not stop blinking after plug in) On the FMT PCB (part # 930B924002) check C8F19, C8F21, C8F22, and C8F27 (16V 1000 uFD 105C), if any are bad, replace all of them with part # 181P734030 (680 uFD, 16V, 105C).
It is not an easy job, it will take some time but since you have it apart there is another problem that will accure so might as well do this too:
Tile or block pattern with no video or OSD. Check D8F00 and D8F01 part # 264P828010, also check C8F26 and C8F29 part # 141P148000 (1 uFD, 25 V) on the FMT PCB (part # 930B924002).
All the parts have location numbers like C8F29 that will tell you what and where these parts are.
Good luk, big IRISH.

Posted on Jul 19, 2008

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Posted on Jan 02, 2017

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I did find six of the fourteen known-problem caps to be visibly bulging -- both 3300s and two of the four 1000s on the PWR PWB plus two of the four 1000s on the FMT PWB (see photos below). Ironically of the four 1000s on the DM PWB, which I have heard are the most common to go bad, were bulging and I considered skipping these as the DM it is the toughest board to extricate from the chassis, however I figured I had come this far and I would just as soon replace all twelve 1000 uFs as the parts cost $0.23 and I really never want to have to do this again.

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Here is the POWER PWB with the known-problem caps (C9A37, C9A38, C9A51, C9A52, C9A61 and C9A62) highlighted:
a99678f.jpg
here's the FMT PWB with the known-problem caps (C8F19, C8F21, C8F22 and C8F27) highlighted:
7826ab5.jpg

and the DM PWB with the known-problem caps (C81A2, C81A3, C81B3 and C81B4) highlighted:
a158dce.jpg
Here are close-ups of the bulging caps (C9A37, C9A38, C9A52 and C9A62) on the POWER PWB:
bb3e69c.jpg
76dcd23.jpg
9e2c246.jpg
And here are close-ups of the bulging caps (C8F19 and C8F27) on the FMT PWB:
55cd11f.jpg
1a03490.jpg

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