I don't know how old this tv is, a friend gave it to us over a year ago for free (can't beat that). At the time it worked fine, it still looks great too! About a month ago the set started blinking until we turned it off. After waiting about 5 minutes we could turn it back on and it would work fine. Now the picture looks like a 3D picture without wearing the glasses. When I go to convergence to align the cross, the red won't align because it is bent. Any suggestions on how to fix, or has it reached the end of it's rope?
Thanks for your help!
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Re: 48"Mitsubishi projection TV
Blinking Problem http://www.chrisandnat.com/Projects/BlinkingTV/blink.htm http://www.jeremyburns.com/Mitsubishi-Green-Blinking-Light-Fix.pdf http://www.fixya.com/howto/h159332-mitsubishi_dm_board_repair http://hdtvoice.com/voice/showthread.php?t=32186 replace DM Convergence amp ic bad The STKs are common and if you have an experienced electronics tech around they can replace them for much less money but the tech must have advanced soldering and IC exchange experience.
The STK ics, two of them, can be purchased on line for around $20 to $40 each.
Partstore has two models available - one for around $40 and another for around $55.
The part number is STK392-110 and if you google you can find them for as little as $6/each but I don't recommend the cheap ones as they are not reliable.
It takes a good tech around 3 or 3 hours to take the old ones out and solder in the new ones. Also, it is likely one or two resistors are burnt and will need replacing as well.
Don not run the tv till you have it fix you will cause more damage!
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I thinks that you have its original remote handset with you now, and posts this solution. If you don't have it, either buy a new original remote handset or try to get it from any of your friends and relatives, who owns the same model of Mitsubishi Tv, you have now; only to unlock it. After unlock, you can use any other remote control. Mitsubishi sets use a four-digit code for a V-Chip locked program, view a locked TV, cancel the lock, or to enter the V-Chip lock menus. You can view the locked shows on the TV set by pressing the number 9 and QV buttons on the remote at the same time, whenever your code is requested. This process temporarily unlocks the TV and asks you to enter a new code. OK.
It depends on what the problem actually is; are the streaks colors like red or blue outlines around lettering etc?
The more you tell me the better I can help. I will post a photo or two of what convergence problems look like. This set is also prone to another problem, on a blank video input look at the screen: you should only see Video 1 (etc) and if you see faint curved lines (red, green or blue) and or the back ground is also wrong color you have the second problem.
let me know which it is.. If this information helped you rate this solution as very helpful as I do this here for free.
this is mostly in the eye of the one who thinks they need one!
12 months of age 60% its purchase price if it is in good working condition 24 months 50% 36 months 25-30% 48 months 10-15%
Beyond that it will be heritage listed and bring twice the price of its original outlay and be sought after by Mitsubishi who will be amazed that they actually made a TV that lasted that long. The average life of amy Mitsubishi and quite a few other modern Tv's is about 3 years before they require huge repair expenditure. Often better to update wvery 12 months if you can afford it as they are not built to last like the old CRT's that will still deliver on a set top box long after plasmas and rear projections have been retired.
DLP projection tvs are bulky and have a design flaw in the convergence board the 2 STK convergence ICS alway dies constinely require replacement,if u use about 4 or 5 hours day in and day out.If the old Mitsubishi tv several years since is was repair,u use it alot?If yes,it time to retire it,and buy the refurbish Plama tv.Not,than get the old tv repair.U Know how to solders?Tries Websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.U can go to You Tube type in Convergence problems will see a tutoring video in repairing 2 STK Convergence ICS.
you need to replace the 4 100uf capacitors on the DM board. You can get the service manual for your set at this link. They will email it to you after purchase and they will provide free instructions on how to do the repair with pictures plus free on line tech support . heres the link. http://servicemanuals.vstore.ca/
Sounds like you lost the High Voltage. The beating sound is the power supply trying to start up. After a predetermined time it will quit to protect the set. This is a very common problem and typically not that much to repair. If you are not an electronics repair technician you should find a reputable repair shop and enlist their services. I would not think the cost should exceed $150.00 to repair. Good luck.