Question about Mitsubishi WS-55905 55" Rear Projection Television

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No picture or sound

No picture, no sound. green light does come on on the front of tv when powered up. started going bad with no converge sometimes, then more frequent, now no picture at all then sound went

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  • JIM FITZPATRICK May 24, 2009

    IT DOES HAVE SOUND, MY MISTAKE AND IT HAS A BIT OF PICTURE (ALTHOUGH BADLY DISTORED, JUST LINES REALLY) WHEN I TURN IT ON BUT AFTER MAYBE 2 SECONDS IT SHUTS ITSELF OFF UNLESS I KEEP CHANGING THE CHANNELS. DOES THIS MAKE ANY SENSE TO ANYONE OUT THERE???

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  • Mitsubishi Master
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This would start with the power supply on up to the conv. board.. I have seen som many TV's like this wiht problems.

Posted on May 24, 2009

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1 Answer

Flashing green power light


If the model indicated here is right It could be in the power supply and this model sometimes fails where light just blinks--that could be also convergence issue--in this model there is a way to disconnect the power going to the convergence board to see if set will then turn on.

Jun 14, 2012 | JVC AV-65WP74 Rear Projection Television

1 Answer

My panasonic tv has started too have very bad picture problems colors of red blue green going thru the screen


Replace convergence ICs in tv by local tv repairman to fix tv problem as picture become very bad due to convergence chips failure.

Oct 13, 2010 | Panasonic Televison & Video

1 Answer

Blurry picture, some color is off


It sound like your tv needs convergence repair. There is a couple of possible causes to this problem on this particular model. One will be a missing voltage due to a loose conection on the fly back transformer, it may cause a fuse to open; it may also be a bad convergence power supply module, or a bad convergence module.

Oct 26, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

TV WAS WORKING FINE, TURNED IT OFF, THEN TURNED IT ONTHE NEXT DAY


Your tv might have a defective power supply, and/or convergence circuit. The initial cause of the problem, if it is the convergence circuit, is usualy a loose conection on one or two jumpers close to the convergence output circuits (STK392-1110), in with case this chips might need to be replaced and a pico fuse of 5A on the power supply too. I hope this help you.

Sep 24, 2009 | Toshiba 56H80 56" Rear Projection...

1 Answer

Hitachi 51UWX20B no sound, no picture, blinking green LED


The 392-150 is a higher current device then the 110---you can use either--this is normal in the hitachi sets---I usually replace both with 150's---check the led that does not light---should indicate which voltage source is bad---if it is one of the 2 voltages for the convergence ic's(one is a positive and the other a negative voltage) then the convergence Ic's may be bad---look for any discolored resistors around the ic's---one way to tell if it is a convergence ic is to de-solder both ic's and see if the set turns on(the convergence will be out the window) but if it comes on change both and do the alignments with the Hitachi remote. By the way----the led should have a location number printed on the top of the circuit board.

Aug 07, 2009 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

My LG 26" LCD tv has no picture. The power light comes on but no picture. Sometimes, after turning it on and off for a while it will come on.


Do you have sound? If you have neither, it is a bad power supply, if you have sound, it could be your video card/convergance board/DM board

Jul 19, 2009 | LG 26LG30 26 in. LCD TV

1 Answer

Green light flashing-tv will not reset-no picture no sound


When TV does not start, and sometimes you hear a clicking noise, that means that the TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Feb 17, 2009 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

No picture no sound


Could be a bad relay, or a bad power supply, or something else. Unplug the TV for a while (overnight perhaps) to see if it "resets
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Oct 10, 2007 | Hitachi 51SWX20B 51" Rear Projection...

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