Question about Mitsubishi VS-4543 45" TV

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PICTURE GOES OUT ON MY MITSUBISHI MODEL # VS-4543.

How doIget at the back of the circuit board to check for loose connection with soldering iron??

Ed,

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Disassemble the set.

Posted on Oct 14, 2008

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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.
http://electronicshelponline.blogspot.com/

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

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Mitsubishi vs-4543 45in.


Older set with very common issue--someone would have to get the chassis free and up so bottom of the boards face rear of set---look for bad solder connections--if you can get it up and know how to solder I can tell you where to look.

Apr 06, 2012 | Televison & Video

1 Answer

Mitsubishi vs-60607 60" screen is


when picture is getting smaller in size or goes away or moves towards one side then hit your TV lightly on left side or right side or on top & then observe ..........you will get normal picture or it comes & again it goes....if it is happening like that then following is the situation..........after 4 or 5 yrs in some TVs on main board at some soldering joints crack develops....then due to loose contact picture becomes small in size or disappears ...........when we hit that lightly then those loose contacts joins temporarly & again picture appears for some time............so solution is ......TV main board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting TV lightly if there is no response then main board has to be checked completely........in your case iam sure it is loose connection problem.........joints should be re - soldered ...100% it works again................this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good TV service engineer

Apr 22, 2011 | Mitsubishi VS-60607 TV

1 Answer

I turn it on with a remote and it turns right back off.


This is a older rear projection set. What I have seen and suspect is your problem is this set develops bad solder connections with age---this is a normal thing as the boards expand and contract when hot and then cool down.

Most likely some connection in the power supply has broken loose---I fixed several where it was a 20 minute job to get at the bottom of the circuit boards and resolder poor connections.

Let me know if you have questions as I am here to help.

SD TECH

Aug 10, 2010 | Mitsubishi VS-4543 45" TV

1 Answer

VS-5042 Sound but no picture


It is not bulb, are you talking about the tube ? At the neck of the tube you will see some connections.Carefully abserve if any cracks on the solderings(we call them DRY SOLDER), then connect them with soldering iron. Always make sure you have disconnected the TV from the mains. If the problem still persists, you will need to reffer to a qualified and Experienced person. He need to look for the LOT section(Auxiary power supply), video amplifier, CRT sections.

Aug 23, 2009 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

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

1 Answer

Mitsubishi model #VS-4543


2 THINGS CAUSES THIS PROBLEM ON THESE --- THE BLUE PICTURE TUBE HAS LEAKED FLUID ON THE CIRCUIT BOARDS ,,,THAT 'S BAD
AND SOMETIMES ,WHEN THE VERTICAL CIRCUIT GOES OFF ,,THE SCREEN WON'T LIGHT UP ,,,THAT NORMAL ,,,KEEPS FROM DAMANGING OTHER PARTS
U NEED A TECH TUNICA

Oct 29, 2008 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Sharp 36in tv


Your problem may well be a loose connection ( cold solder joint ) on the printed circuit board. A person would need to disassemble the set and remove the printed circuit board so that you can view the soldered side. Look for any connections that may be loose or discolored ( the color on all the soldered places should be a shiny silver color ). When you have located these area or places that seem to be different or loose, resolder them with a soldering iron, and electronic solder lead.You set should be fixed. Good luck and I hope this has helped.
AS A NORMAL PRE CAUTION, ALWAYS UNPLUG THE SET BEFORE OPENING OR REMOVING THE BACK

Ed
NC Electronic
Mills, Wyoming

Feb 18, 2008 | Televison & Video

1 Answer

MITSUBISHI VS-4543


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, Picture go out after a few minutes


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.

Aug 05, 2007 | Mitsubishi VS-60607 TV

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