Question about Toshiba TN55V71 55" Rear Projection Television

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I have a Toshiba TN55V71 and it will not come on. When you turn it on the power light comes on & stays red but the screen will be black and there is no sound. If I leave it on it will come on in about ten minutes.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

beachboy
  • 1 Answer

SOURCE: Toshiba Theaterview HD 52"

I have the same tv and had it fixed the problem is most likely the power supply a $50.00 part but I suggest you have a repairman do the fix. Total cost should be around $250.00 for labor and parts.Also unplug your tv for over 4 hours then plug it back in to see if it works they call this a hard reset.If this does not work after 4 hours try unplugging it overnight and then try it. That is what I did to use the tv until I got it fixed. The only thing it could be is the convergence circuitv if this is the case it should cost about $400.00

Posted on Dec 24, 2006

djnick989
  • 1067 Answers

SOURCE: my toshiba wont turn on but red light come on an green light flashing no picture or sounds

yes ill got remote link for u here give me one sec

Posted on Jan 29, 2008

ctf1800
  • 4402 Answers

SOURCE: toshiba 52Hmx94

How many times does it blink?
I replaced the ballast in my 62HM84 and it fixed it. The problem was TV would not turn On, Red light solid green light blinked 9 times then TV would try to restart. At first I thought it might of been the bulb, so I replaced it, same results. Next I replaced the ballast which is pretty easy, just take pictures before you remove the light engine so you can go back to the picture to verify the connections when reinstalling.

Posted on Feb 11, 2008

  • 7 Answers

SOURCE: TOSHIBA TV NO SOUND NO PICTURE, POWER LIGHT IS ON

the lamp in the projector might have went. try replaceing it. to do so try

ADTECH SYSTEMS they may help

there in mass.
call David Crepeau at 978 261 1087 tell him Ryan Bolduk sent you
depending where you live. They maybe able to send someone out from there sub company

Posted on Sep 18, 2008

  • 2 Answers

SOURCE: Toshiba 57H81 Flashing Red Power Light, Blown Fused F850+F852

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:

  • Upon turning on set I got flashing red power light and nothing else.
  • Removing plug for one minute and plugging in results in:
    • Audible click, steady red power light for 2 seconds then slow flashing red light
    • Pushing power button results in steady red for about 2 seconds then slow flashing red light, no other set activity
  • Removing power cord for several hours and plugging back in made no change
    • Audible click, steady red for about 2 seconds then slow flashing red light
  • Possible related note: Over past several months occasionally the entire screen would flicker momentarily and at other times be problem free for weeks.
  • Fuses F850 and F852 found blown

Repairs Made:
  • PD0074 DEF/CON Power Board
    • There are two main power supply capacitors in this set. They are C-809 and C-810. One their negative lead on the printed circuit board re-soldered leads and nearby contacts. I’m told that because the factory left out a printed circuit board eyelet, the connection will come loose over time. When I called Toshiba customer service they said there was a known solder joint problem causing blinking red light.
    • Replaced blown fuses F850 and F852.
      • I actually installed a fuse panel on the inside of the cabinet and routed the fuse connections here instead of ordering the special fuses and replacing them on the circuit board.
      • Had to use a 5 Amp SLO-BLOW for F850. Fast blow does not survive power up. Get the red blinking light.
      • Used a fast blow 2 Amp for F852.
  • PD0073 SIGNAL Board
    • Re-soldered Q751 + Q752 STK392-110 Convergence Amps
    • Re-soldered adjacent pads that looks suspicious

Total Cost to Repair about $10
  • Twelve hours of my time over three days to research issue, disassemble set, make repairs, add fuse panel.
  • Already owned Service Manual and Circuit diagrams from a different 2004 repair.
  • Less than ten dollars at Radio Shack for fuses and fuse panel. Already had wires, etc.
  • Some solder. Already owned de-soldering tools, etc.
  • Visited both local authorized Toshiba factory service repair facilities. One said repair would have to include replacing Q751 + Q752 STK392-110 Convergence Amps with ST392-180, and realigning set for a total of $500+ and it would be more if they had to order a power board. NO THANK YOU! Other shop said $65 for site visit and $30 to make an estimate that could be applied to repair.

Posted on Jan 05, 2009

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