Question about Toshiba 50HX81 50" Rear Projection Television

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No pic or sound with power on my Toshiba 50HX70 Tv

The tv will turn on but no sound or picture! does this tv use 2 or 3 prong plugs?

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The plug configuration shouldn't make a difference; the third (round) pin is only an earth/safety ground. The two primary plugs supply the AC. You probably have a failed power supply which may be a separate board. Check to see if this is the case, look for a part number and see if you get any hits on it on search. 

Posted on Jan 27, 2009

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Im having a convergence problem with my 50HX70. The tv was working fine until one day i turned it on and there was a blue shadow on the bottom half of the screen. I tried to adjust it and the horizontal...


Tv have a dead convergence board.The convergence board require replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the convergence board to fixed the tv picture convergence problems.U have all tools and can do soldering?Yes,tries websites like Tvrepairworld.com,Tvrepairkits.com to buy a convergence kit to repair it urself.Or the shop,will $300-350 for parts and labors.

Mar 18, 2011 | Toshiba 50HX70 50" Rear Projection...

1 Answer

I have a Toshiba 50HX70... I fixed the convergence issue around 6 months ago. Now the sound does not work... I turn it all the way up and you barely hear anything... I did move it recently, did I know...


Best best would be to try the following:

Start with taking the back cover off of the tv.

1) Verify if you can hear any sound whatsoever out of the speakers. If so, that would indicate that the speakers are still connected to the circuit board. If not, then trace the wires from the speakers to where they plug on to the board.

2) if you hear sound (hiss) in the speakers, but not the audio signal from your program you are watching, then look to ensure all connecters are fully seated around the RCA jacks in the back.

If those two do no produce results, then could be a solder joint on the board finally failed after moving the tv, or the amplifier for the speakers has failed. If you hear sound though as in step 1 above, i would doubt it is the amplifier IC.

Feb 20, 2011 | Toshiba 50HX70 50" Rear Projection...

1 Answer

Intermittent picture. Lights on circuit blink when starting up. Often sound, no pic. Blue and blinking yellow for 2 or 3 tries, then picture. Sometimes only blue with no sound or pic. Ballast?


Ballast Board! Go to Encompass Parts Distr online find out what your Part# is! or Call 1-800-638-3328 also try UED 1-800-648-6657 This TV has alot of fuses over 20 of them!You didnt say have you replaced Lamp thats what goes first 9/10 unless you get power surge or Bad capacitors on the power supply Board caps are bad if they are puffed up on top 1000uf25v caps!

Nov 23, 2009 | Toshiba 56HMX195 52" HDTV DLP Projection...

1 Answer

Toshiba 50hx70 sound but no picture


NORMALY SOUND BUT NO PICTURE IS THE LAMP YOU SHOULD CHECK THAT TO SEE IF ITS BLOWN

Mar 07, 2009 | Toshiba 50HX70 50" Rear Projection...

1 Answer

Toshiba projection tv


check for solder bridging between the IC pins. also make sure the wire connections are back in the proper locations

Feb 14, 2008 | Toshiba 50HX70 50" Rear Projection...

1 Answer

Picture & Color Distorted


Convergance IC replace.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Dec 11, 2007 | Toshiba 50HX70 50" Rear Projection...

1 Answer

Toshiba 50HX70 - red blinks but TV will not turn on...


Hi, you`ll need to call the tv guy then, you have a short in one of the power supplies, or possibly broken solder connections, either way the board has to come out and board repaired or parts changed, BMW Rider

Dec 02, 2007 | Toshiba 50HX70 50" Rear Projection...

3 Answers

Toshiba 62hm14 TV turns on with no picture but has sound then green light blinks and it shuts off


This isn't gonna help you, but I have the same problem on my 62HM15A, think we have about the same tv, widescreen DLP,?

My TV does the same thing powers with a blining lite then powers off. First it powered on with sound no pic, then would shut down and power up again with pic and sound , now i gots a nothing just powering on and off until i shut the thing off manually.

thanks, just posted here in case some answers bipea's question and it relates to mine.

Jul 23, 2007 | Toshiba TheaterWide 62HM94 62" Rear...

1 Answer

TV picture shaking!!!


It sounds like the Hyper board is begining to fail....Does the menu shake too?

May 16, 2007 | Toshiba 50HX70 50" Rear Projection...

2 Answers

Tv repair


This happened to mine. It was a fuse that cost $3.42 but the service call was $200! If I knew how to do the freaking work I'd be rich!

Apr 09, 2007 | Toshiba 50HX70 50" Rear Projection...

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