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If this is a DLP, you may have problems on the FMT/DM boards in the sealed electrical chassis.
That's a big problem, because Mits doesn't make the DM/FMT boards available anymore. They are only available for rebuild from Mitsubishi and other qualified places.
There is a chance that there are some vented capacitors on the DM and FMT boards you might be able to replace, but it's for someone really comfortable with completely disassembling a set, soldering in 8 new caps and rebuilding the chassis.
Rebuilds will run you $400-$500 in rebuild costs and an additional $200-$400 in labor, depending on the joint.
Your main boards are bad. The FMT, DM, & Power Supply. They are no longer available, You have to
have the chasis rebuilt. Mitsubishi is rebuilding these chasis. You
have to pull it without any cut wires & ship to Georgia.
tvdoctor, T.O., Ca
#1. replaced capacitors on power board. DM board FMT board .
# 2 on power board you need to chek caps. 3300mf x 35 v.QTY 2.
# 3 12 capacitor 1000mf x 16 v.
If caps 1000mf x 16 v . looked good. replaced anyway......
That set is plaqued with bad capacitors on the PWB, FMT and DM doards. Usually all problems assosciated with that model can be attributed to those capacitors. You can purchase a service manual that they will email you at the following link, and they will provide free tech support to help you straighten it out. Heres the link. http://servicemanuals.vstore.ca/
if you have replaced the caps on the DM and the FMT and power supply. you can unplug the e2p. the set will run without it if it is the problem, however it will take 5 to 10 minutes to boot up so be patient. if it boots try turning it on. the picture should look terrible because no light engine data is getting to the dm. chances are it is not the e2p, in the over 300 of these chassis i have repaired maybe 10 had a bad e2p. most likely the chassis needs to be rebuilt. check out www.tv-techs.com
The DM board wont cause that symptom. The DM only directs power that is recieved from the PWB to the ballast fans and etc. That sounds like a problem with the FMT. capacitors 1000uf @16volts numbers C8F21, C8F22, C8F19, and C8F27. those will cause distortions in the video on the V26 chassis. Let me know if you need more info
The WD62825 has a Digital Module located on the left side of the chassis looking at it from the rear of the set. It's housed in a metal box that can slide out of its holder after removing the trim screws.
The module has its own power supply board and there are a group of 16v/1000uf caps on that board which commonly fail causing the constant flashing standby light. Further back on the module is a small board about the size of a matchbook called the E2P module. Its SMT (Surface Mount Technology) caps also commonly fail which can cause the same symptoms. Techs can tell whether the E2P has failed by simply removing it, hooking the DM back up and trying to power the set. If it powers on the picture won't be much good - but at least you can tell what's keeping it down...
Back to the caps on the pwr board. If they've failed they usually will buldge visibly on top. And ESR is almost not necessary. In any event that's the nuts and bolts on this model.
Is it a job for a layman? Yes and no - you might strongly consider a tech if you don't feel comfortable removing all the connections that the DM has with the signal board. There are about six - multi-pin - wired connections to unplug and then sliding the DM out of the unit and carefully removing the screws and latching to take the DM top cover off...
Hope this helps.