Mitsubishi WS55315 rear-projection has gone dark

Hi this is the user manual for ur Tv , Hope that can Help u , Good Luck
http://www.audiolabga.com/pdf/WS55315.pdf

i believe that code21 on that model is vertical deflection shutdown. the repair would be very involved i suggest calling a serviceman.

The Main issues with the Mitsubishi HDTVs that size are the projection bulbs in the rear. A large TV like the Mitsubishi can allow dust build up on the lamps and the mirror in the rear that projects the picture to the screen. An easy fix would be to clean off the dust off of the mirror and bulbs. You would need to go through a tough processto do this since the mirror can be quite heavy and is in an ackward place. The only other alternative would be the need to replace the projection lamps themselves which can cost any where fromm $150 - in some cases $300 a piece for the lamp itself. The Television is still a great set but can cost quite a bit right now to fix if the problem is with the Lamps. If you can afford the Lamp replacement if it is needed the set would last you another 10 years plus. If you wouldn't like to go through the hassle of repairing the set or finding a place to repair the set there are so many new sets out in the market that will give you an amazing picture and quality.

I can almost guarantee that the circuit board(s) have bad capacitors on them. I repaired one last week that had 20 bad capacitors on 4 boards.
Fixed one the week before with 15 bad caps on two boards.
A repair shop may be able to replace the boards, but it may be expensive.
- I hope my diagnosis is wrong-

Yes you will need to replace both of the STK392-570 Convergence ICs and the two 5 amp pico fuses. You can get the parts at the following link and they provide instructions with pictures that show how to do the repair. Heres the link'
http://servicemanuals.vstore.ca/

hello sorry but it sounds like the chip have gone again when you replace these chips you might have to change the resistors and the 2 capacitors as well

shaun

Yes this is the same as the others the voltage regulator is gone on your tv, replace it and take a good look at the power supply and horizontal ckt look for some cold solder


good luck


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Good Day,
Go into the 'menu' then advance area to the audio and turn speakers on. You must have TV's orig remote. Or go to menu:
OPTION MENU "MENU 1370" SERVICE MENU "MENU 2357". Choose reset.
Good Luck, big IRISH.

Get a ******* repair man

I have a 2 year old Mitsubishi Rear Projection 52" model WD-52525. I recently experienced the same problem as you. My TV quit without any warning and the red lamp light came on. I bought a replacement lamp just like you did, did everything you did too, but it still didn't work either. Since it's past the 1 yr warranty (of course), I took it in to an authorized service center for an estimate. They determined the light engine failed and it will cost me $816.35 to repair. I already shelled out $240+ for a lamp, $48 for the repair estimate and I said "hell" no, I'm not going to fix it for another $800+ and bought a new TV. I'm writing a letter to Mitsubishi expressing my deep dissatisfaction (to put it mildly) with this faulty product and will be requesting reimbursement, which I probably won't get. I sincerely hope this is not the same problem your TV has, but if it is be prepared for a costly fix.