Question about Toshiba 42HP66 42 in. LCD Television

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Toshiba 42HP66 No Picture, Only Power Works

Toshiba 42HP66 plasma TV has no picture, no sound, none of the buttons except power work. TV was working fine, turned it off by accident and then it would not come back on. When it is powered on there is a green LED power light. and a message comes on the screen, Please Wait, Thank you for your patience.

None of the other buttons work, volume, channel or input. When the TV is powered off the LED turns red.There is no sound, only the black screen and the Please Wait message.

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  • Anonymous Mar 20, 2014

    I have a JVC flat screen it worked perfect till I put it in storage it was in other for a lil over a month and now I turn it on and the power light comes on but there is no picture Thought it might just be cold at first so waited an hour and tried again and same thing

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  • Master
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Try replaced z board Manufacturer Toshiba Part Number 75003032 Description ZSUS PCB ASSY

Posted on Oct 02, 2009

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Posted on Jan 02, 2017

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The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
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My new toshiba 32 inch regza turns on but thats all it does? no picture, sound even menu dosnt come up


First if a "new" set and if in warranty--have them deal with the problem.

If nothing on remote except on and off works--it is a micro problem (microprocessor) in the set.

I assume you did unplug the set---wait and plug it back as that could allow the micro to reset.

The key clue here is nothing on remote works except on/off?

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I have another model Toshiba LCD tv and have had the immediate turn off problem a few times before. What has worked every time for me so far is to repeatedly press the power button (on, off, on, off) about ten times or so. Then turn it on and see if it stays on this time.

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Hello, You may have a bad power supply! Its hard to say! I need more info! please feel free to call or message me if you would like more help with your TV!

Thank you!

Dave
1-503-432-9904
pleasefixitdave@yahoo.com

Apr 07, 2009 | Toshiba 42HP66 42 in. LCD Television

1 Answer

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I too have this problem with no help from hh Gregg, where I bought the tv, and no help from Toshiba. I resorted to calling the BBB and complaining about the defective workmanship. I took the tv, which is less than 2 years old, apart and found the y-sus board, behind the y-sus board is a foam rubber spacer to seperate the circut board from the backside of the screen. I think this pad is designed to prevent heat buildup in the y-sus board. The pad itself is held on by glue and that glue melted causing the y-sus board to short out. I noticed this after finding a tacky substance behind the board. The heat from the plasma screen melted this and also the pad itself. Toshiba claims no resposibility because the tv was out of warranty. Thanks Toshiba.

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42hp66


Hello, You most likely have a bad Y sustain board! Part #'s are:

6871QYH053A, 6871QYH053B, 6870QYH005B, 6871QYH953A, 6870QYH105B.

Here is a link to the part you need!

http://www.discount-merchant.com/Y-SUSTAIN-PN-6871QYH053A-6871QYH053B-6870QYH005B-p/vizio-sku9506.htm

I hope this help you! Please feel free to give me a call or message me if you have any questions! Ask for Dave!

Thank you! :-)

Dave
1-503-432-9904
pleasefixitdave@yahoo.com

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Artgirlny

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