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Mitsubishi VS 4543, Picture go out after a few minutes

My mitsubishi VS 4543 goes complete dark after a few minutes of watching, The sound stays on and is great what do I need to do to repair myself?

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Re: Mitsubishi VS 4543, Picture go out after a few...

I usually find that symptom you describe is caused by cracked solder joints on the power regulators or vertical output IC. I have also seen that symptom caused by loose solder joints on the vertical windings up inside one of the yokes. If you have experience in repairing TV's then you can disassemble the set and pull the main chassis, flip it over and resolder all of the parts mounted on heat sinks. If you do not have experience in repairing projection TV's then allow a qualified tech to handle it for you.

Posted on Aug 05, 2007

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Blank screen and no audio on Mitsubishi vs 4543 when ps3 is connected through rca cables. other electronics work fine.

Check and replace the main power regulator [SMPS] board to your TV. Contact any service technician, or the authorized service center for Mitsubishi. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.

Mar 12, 2014 | Mitsubishi VS-4543 45" TV

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I have a Mitsubishi vs-4543 tv that when powered

check the power supply section.. probably the electronic component got problem.

Jun 04, 2009 | Mitsubishi VS-4544 45" TV

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I have a vs-4543 picture only works part time sound always works

most likely bad solder connection or cold solder connection which is making contact after the set is moved or vibrated doe's this happen right away
or after the set is warmed up

May 07, 2009 | Mitsubishi VS-4543 45" TV

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VS-4543 Mitsubishi 45" TV

Replace red convergence IC,both IC's for solid fix

Jan 12, 2008 | Mitsubishi VS-4543 45" TV

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PVAT!!Look for bad connects--start w/easy first. Power supply,then vertical IC pins,then regulators.Take your time,be thorough.

Oct 01, 2007 | Mitsubishi VS-4543 45" TV

1 Answer

Mitsubishi vs-4543

Most likely the convergence output IC has shorted out and has overloaded the convergence power supply, which has stopped working. The computer senses that the convergence power supply is not running and shuts the set down. The convergence IC should be replaced, the power supply restored and the convergence circuits realigned by someone experienced in Mitsubishi projection sets. When I do a housecall for a set like that I charge $150, but shops in your area will vary so ask around.

Aug 04, 2007 | Mitsubishi VS-4543 45" TV

2 Answers

Picture goes out after a few hours.

coul'be overheat solder the cause of a loose connection , and or convergence ic 's almost ready to fail . the cost to repair will be around 250.00 to fix replacing the ic's depending of the tech. or 350.00 at repair shop if you may have more question , let me know Im here to help you. thanks

Jun 12, 2007 | Mitsubishi VS-60607 TV

1 Answer

TV turns off a second after turning on....

You have a high voltage shutdown problem, look at the threads here on Mitsubishi and you will find your answer.

Dec 09, 2006 | Mitsubishi VS-4543 45" TV

1 Answer

Black screen and have sound

find problem here in threads,

Nov 15, 2006 | Mitsubishi VS-4543 45" TV

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