Question about Toshiba TP50H95 50" Rear Projection Television
The TV, when it plays, it is perfect. It will go for days with no problems, then just shut down. Sometimes just for an hour or two, and at times, for over a day. Does not seem to be temperature related, as it happens with room temps warm and cold (room temps in mid 60 deg F). I placed a fairly large fan blowing diagonally across the back of the unit just in case the heat was building up - made no difference. I understand there are two main logic/circuit boards, Could a board going bad cause this and if so how to determine which one and where to go to replace it - or whatever else might be causing the problem. There appears to be no pattern for how long it will run, or how long it stays shut down.
Thanks for any help - JL
SOURCE: Toshiba model 57H81
If you have zagged lines there are 10 small surface mounted capacitors you will need to change on the HYper Board. This is not an easy repair so alot of folks simply replace the hyper board. You will need a service manual to take this set apart and to get the proper part number. If you have no TV repair experience or do not know how to solder, as the hyper board has sheild arounfd it, you should play it safe and call out a pro to assist you in this repair. Good Luck
Posted on Mar 19, 2007
SOURCE: Toshiba TV repair
You say it's a DLP yet the model number shows as a standard projection, anyway what you seem to have is a Hyper board problem, many shops can repair this Fragile board but it's not for the weekend tv tech to try to do
Posted on Feb 13, 2008
You will need to trouble shoot the start up and shutdown circuits. Often this is a minor component failing causing the set to not power up or go into protective shutdown. Do you have the service manual for this TV?
Posted on Mar 02, 2008
Solved by resoldering some solder joints!!!!!!!
Toshiba Model 57H81 Rear Projection TV - Purchased 11-09-2001
Problem: Toshiba 57H81 Flashing Red Power Light, No Picture/Sound, Blown Fuses F850 + F852
Symptoms January, 2009:
Total Cost to Repair about $10
Posted on Jan 05, 2009
My experience has been that the resistors have fallen out of range. These aren't expensive and neither are the caps that surround this area. If you're pulling the board out to change the resistors, might as well change the caps, too. If you're strapped for cash, but have a multi-meter, you can test the caps and the resistors after they've been taken out of circuit to save a little green. Let me know if you need any help testing them; I'd be glad to help.
Posted on May 22, 2009
This is a model first sold 2002.
They have a history of the Hyper board failing. Usually noise or lines in the picture and the warmup time gradually gets longer and longer.
This board processes all signal from all inputs inside the set and is no longer available from Toshiba.
The only way to get one is from a national company called PTS Electronics who rebuilds or repairs them--cost for rebuilt board is about 220 plus shipping and part number for this model is:
I have a service bulletin with photos of the board on my computer.
It is a financial decision, not a job for the average do it yourself person to attempt.
Let me know if you have questions or need help.
Posted on May 03, 2010
Tips for a great answer:
Jan 12, 2015 | Toshiba 52hmx84 52"" Diagonal Cinema...
Apr 15, 2009 | Toshiba TP50H95 50" Rear Projection...
Jan 17, 2009 | Toshiba TP50H95 50" Rear Projection...
Mar 01, 2008 | Toshiba TP50H95 50" Rear Projection...
Aug 10, 2007 | Toshiba TN61X81 61" Rear Projection...
155 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: