Mitsubishi wd-62628 freezes, then shuts off

Mitsubishi wd-62628 has random problem where the picture freezes and sound stops. There is no control at remote (can't change channels, etc). Then after 30 sec or so, the TV shuts itself off and the power/timer green LED blinks rapidly for 30-45 sec. Once that has stopped, the TV can be powered on again and works normally.
This may happen once a day, or once a week. It doesn't seem to have any preference of which TV channel it fails on (we only use over the air antenna signals). It has failed while watching analog or digital channels. It may happen after an hour of use or after several hours of use.  We first noticed the problem more than a year ago.
The TV is under an extended warranty. A local repair company contracted out by the extended warranty issuer came out a few months back and did a complete reset of the TV hoping that would take care of the issue. It did not. Now the same company just came out on Monday and replaced the E2P board (Mitsubishi part # 935d820001-v30, pwb-e2p v30). It had been 11 days since the last time the TV froze and shut off previous to them coming out. Now two days after the E2P board was replaced, it froze and shut off again.
The repair company is wanted to take the TV into their shop to try and reproduce the failure. But they haven't conveyed to me exactly what they plan on doing. I told them I am not allowing them to take the TV until they have discussed with Mitsubishi the problem and have determined EXACTLY what the next step will be.
Any help on what to tell them would be appreciated. I get the feeling they have no idea where to start, now that their two attempts have failed to resolve the problem.  And as long as the TV works (at this point the problem is more of an annoyance), I am reluctant to let them have it, just for them to have it powered up in hopes it will fail for them.
kfb
kfb's picture
Larry,

Larry,

I was hoping you might have a comment or advice to my post: Mitsubishi wd-62628 freezes, then shuts off  

I am wondering if you have the service manual for this Mitsubishi WD-62628 model that could be sent to me electronically, so I can do my own troubleshooting.

remay at asapreps dot com

Thanks.

Larry Dillon
Larry Dillon's picture
If you have an extended

If you have an extended warranty, contact the warranty company and tell them this company thgey sent out to service the set has not fixed the problem in two attempts. The longer you wait to have someone do something about this set the more of a chance it will go out of warranty and cost you big bucks to have it repaired. I do not have this service manual in stock. Like I said, start making phone calls before it is too late. Good luck

kfb
kfb's picture
re: start making phone calls

re: start making phone calls before it is too late

I agree! It has frozen and shut off 3 times now since Jan 28th. I was in hopes of getting suggestions as to where they should look or what they might try replacing next, since replacing the E2P board didn't help. I made a call to the repair facility on Jan 30 and the receptionist was going to have the main guy call me back. I am waiting for that call back. I would like to be "armed" with information...

Larry Dillon
Larry Dillon's picture
I would say you had a bad

I would say you had a bad light engine or the DM board is intermittant. Have them look at the four capacitors inside the DM and see if they are going bad. Also possibly a bad formater board, they call it an FMT board.

bobh
bobh's picture
I have this exact same issue!

I have this exact same issue!  It has gone on for some time, and still even after my 1st lamp replacement just a few months ago.  I have had the TV almost 3 years, still under extended warranty.  The service company will not come out unless there is an error code I can extract from the power indicatior light.  And when I test that it blinks back OK according to the service repair.  I am contacting Mitsubishi TV directly.

Menu

bobh
bobh's picture
It's the DM board!  I'm

It's the DM board!  I'm getting a new one next week!

kfb
kfb's picture
The lamp in the WD-62628 went

The lamp in the WD-62628 went out on Mar 14, and was replaced under extended warranty on Mar 25. Things were running fine until yesterday evening (Apr 8). After about 4 hours of use, the TV audio and video went off and the power LED indicator blinked on/off for about 30 sec and then the TV shut off completely.

So the suggestion now is that after having the E2P board replaced and the lamp replaced, now the DM board should be replaced, since the symptom still exists? 

Who is claiming that the problem is the DM board? Mitsubishi?

sanny651
sanny651's picture
I am trying to locate the E2P

I am trying to locate the E2P board and can't for the life of me find it. Where is it located, or how to I gain access to it?

Thanks!

sanny651
sanny651's picture
Todd

Todd
Member I am trying to locate the E2P board and can't for the life of me find it. Where is it located, or how to I gain access to it?

Thanks!

sanny651
sanny651's picture
I am trying to locate the E2P

I am trying to locate the E2P board and can't for the life of me find it. Where is it located, or how to I gain access to it?

Thanks!

sanny651
sanny651's picture
Todd

Todd
Member I am trying to locate the E2P board and can't for the life of me find it. Where is it located, or how to I gain access to it?

Thanks!

Rondog
Rondog's picture
I have a WS-73517 the EP2

I have a WS-73517 the EP2 board was zapped and now on its way to Georgia to be repaired it will take a month. In the past 4 years something has gone wrong with this TV. I have an extended warranty and the EP2 board is no longer available to order. I will have to purchase another warranty when this warranty ends.

azwbf
azwbf's picture
Larry, I have a Mitsubishi WD

Larry, I have a Mitsubishi WD-62628 that is about 4 years old. I have notorious blinking green status light. Sometimes after resetting I can get tv to turn on and I get a blue screen. Neither remote nor buttons on tv respond though. After 30 seconds, tv shuts itself off and starts over with blinking green status light. Can you send any information you have on trouble-shooting this? thanks in advance...please send to azwbf@yahoo.com

ironandsteel
ironandsteel's picture
I too have a WD-62628 that

I too have a WD-62628 that had the blinking light problem. Well, I did a "shotgun" approach on the DM board capacitors. I ordered new caps for all the electrolytics, and I went up a step in the voltage rating. I also ordered ones with at least 5000hrs rating at 105c. I replaced every electrolytic on the DM board. From digi-key, I think I paid less than $20 for all.

Because the lead-free solder seems to have a higher melting temp than I am used to, I was having a lot of trouble de-soldering with either wick or a solder sucker. So, I just clipped the old caps off while leaving as much lead as possible. Then I soldered the new caps in from the top, attaching to the old leads. This is ugly, but if done right, totally effective.

The tv (which I got for free) is working great so far since my repair.

Meadojo
Meadojo's picture
I have a wd-73727 getting
I have a wd-73727 getting ready to attempt same thing. Unit comes on then shuts off producing no error codes. Once you completed that is the unit still working?
 

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