Question about Toshiba 42H81 42" Rear Projection Television

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Power light blinking

I have a Toshiba 42H81 that has the power indicator light blinking and the TV will not turn on

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  • toferrall Oct 16, 2008

    power won't turn on and the light is blinking.

  • Anonymous Jan 17, 2009

    I have the same problem..

  • Oz10 Jan 19, 2009

    i have the same problem

  • stevelisa356 Feb 01, 2009

    toshiba tv power button blinking on and off. what do i do.

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I have a Toshiba 42H81 that has the power indicator light blinking and the TV will not turn on

Posted on Oct 15, 2008

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1 Answer

Red light blinks and black screen.


The blinking red light is a standby indicator. Make sure your remote is set to "tv" and not "cable" or "auxiliary".

Jul 25, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

TV turns off and power light blinks unpluged andd still does it.


Likely to be the STK convergence chips causing a protection circuit to switch the TV off. Have you got any onscreen convergence problems (i.e, colour fringes)?

May 27, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

My Toshiba Rear projection TV Has A blinking power light


The power supply is in protect mode. There is most likely a short on one of the boards, or the high voltage generator, or a scan amplifier, or the power supply itself has a failure. Without troubleshooting the set it is impossible to know.


Jerry G.

Feb 19, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

I have a Toshiba 42H81 that has the power indicator light blinking and the TV will not turn on


Replace the convergence amps and check the return resistors in path to the yoke from that circuit.
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Oct 14, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba 42h81


STK392-110 's = replace with Toshiba or Sanyo quality only..
What was the location & value of the resistor ?
An IC, if shorted internally,can prevent the tv from powering up..
Re-check soldered in 5 amp micro fuses F850,851,852,etc
Fix it ! ..............................T.

Aug 28, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba 42h81


have you try to switch it on using the contol on the tv..?

Jul 20, 2008 | Projection Televisions

1 Answer

Blinking red power indicator light


Pushing it back in place went it went out tells me that the problem is probably a poor solder connection. That arcing probably took out one of the fuses, but a fuse is NEVER the cause merely a symptom. I would begin by examining the black wire that feeds the +16v to the convergence IC's on the main board. The convergence circuit is the most thermal circuit in that unit. Next check for any jumpers and other component joints that appear to be ring cracked. Even the convergence amps themselves. Then check for open fuses after you've made a good inspection. Check for fuses: F850 & F851 5amp, F470 2amp, and F890 3.15amp and one of these are likely open. But if you replace them without correcting the problem that cause them to open it will simply happen again.. Good Luck Bill

Jun 10, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Blinking red power indicator light


This appears to be a duplicate post - - and I'm not sure which one you'll check for an answer so here goes: Pushing it back in place went it went out tells me that the problem is probably a poor solder connection. That arcing probably took out one of the fuses, but a fuse is NEVER the cause merely a symptom. I would begin by examining the black wire that feeds the +16v to the convergence IC's on the main board. The convergence circuit is the most thermal circuit in that unit. Next check for any jumpers and other component joints that appear to be ring cracked. Even the convergence amps themselves. Then check for open fuses after you've made a good inspection. Check for fuses: F850 & F851 5amp, F470 2amp, and F890 3.15amp and one of these are likely open. But if you replace them without correcting the problem that cause them to open it will simply happen again.. Good Luck Bill

Jun 10, 2007 | Toshiba 42H81 42" Rear Projection...

2 Answers

Toshiba 42H81 Blinking on and off light


Very common problems with this TV set. Toshiba even has a technical bulliten on this and several other models of tV set. The negitve terminal of C809 and C810 need to be soldered, as there are no eyeletes in the printed circuit board. This problem could also take out the fuse, F860. Replace if necassary. Good Luck

Mar 31, 2007 | Toshiba 42H81 42" Rear Projection...

8 Answers

TV auto shut off-power indicator light blinking-won't turn back on


You could have gotten an electrical surge that put your set into a shutdown condition and unplugging the set and letting the Microprocessor reset will fix this problem if it dosent blow out the main power regulator as you still or might I say have a regulator IC problem. IF THIS PROBLEM HAPPENS AGAIN MORE THEN A FEW TIMES WITHIN A SMALL TIME FRAME I WOULD HAVE THE SET LOOKED AT BEFORE THE REGULAOR BLOWS SOMETHING OUT!!!!

Jan 11, 2006 | Toshiba 43H70 43" Rear Projection...

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