Question about Toshiba REGZA 42WLG66 42 in. HD-Ready LCD Television
All of a sudden my plasma tv isn't showing any picture. all the sound etc. is working fine. This just happened all of a sudden.
the tv is now out of warranty..its been probably 3 years now?
My question is...before running around and paying to get quotes...does anyone know if its a common problem or have any idea what it could be?
It's a 42inch LG which i got for 3k back in the day but now I think they sell for around 1k...better ones..
any ideas are appreciated.
My experience with 42" plasma tv's with no picture or sound was a missing power supply voltage. On the power supply board check voltages on the plug. The voltages should be marked on the board,
Posted on Mar 02, 2008
SOURCE: toshiba 42dpc85 plasma monitor
I bought my Toshiba 50HP66 50" Plasma a little under 18
months ago and about four or five months ago it began to act strange. It would put a block of characters on the
screen that made no sense until I would unplug it and and restart it. Then it would act normal for awhile and would
just need a reset every so often. I was
out of the 12 month warranty so I just put up with it.....until yesterday. I was watching the TV when out of nowhere, I
heard a really loud POP....and then the screen went dark. I went ahead and bought a new Sony LCD screen
and was going to sell this for parts online.
I troubleshoot electronics daily so I thought I would purchase a digital
copy of the service manual and check it out.
After I downloaded it I noticed that this is very common with plasmas
(this exact failure) and only on the LG boards.
I scanned my handy dandy service manual and found out that Toshiba was
using these same boards along with Zenith and some others. The difference is all the other manufacturers
honor their product and replace these boards even when the warranty has expired
so I called Toshiba and tried my luck.
Even though I've found many postings of Toshibas failing and hundreds
and hundreds of the exact same board failure...Toshiba claims to have never heard
of it. I informed the "Customer
Support Supervisor" of Toshiba that I would be willing to post this on a
few websites and have other customers contact him to inform him of this issue. He was fine with it so here is his contact
information so feel free to let him know your Toshiba plasma went POP as well.
800-631-3811 ask for Dave Thompson and let him know.
Posted on May 13, 2008
Your info doesn't indicate if you have a good onscreen display or not. If you do the problem is highly likely to be on the IO board on the rear patch panel of the tv. Replace this board and it should take care of the problem.
If you don't have a good on screen display the two common problems are either on the power supply module or the digital control module. Samsung is known to have problems on both these modules and an electronics technician should be able to remove these modules to inspect for cracked solder joints, or out of tolerance electrolytic filters.
If these conditions do not exist on either board then the power supply board should be replaced first before replacing the digital control board. Search for a vendor that will offer you a full refund will a small restocking fee if the board does not take care of the problem.
Posted on Apr 28, 2009
SOURCE: I have a 32
i know your problem. its an inverter loose connection from CCFL to inverter output. back of your LCD inside the TV. try to remove and re-connect again. be sure no power and AC is unplugged. email@example.com
Posted on May 28, 2009
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