Question about Toshiba 50H82 50" Rear Projection Television

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F850/F851/F852 Where can you recommend purchasing these fuses? They are labeled as SSTR type fuses by SOC but I cant seem to find anywhere to buy them. Thanks Jim

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Www.partstore.com will have the fuses you need F850 and F851 are part number 23144627 125V 5.0A axial and F852 is part number 23144624 125V 2.0A axial just enter those part numbers in the search box for part number and they will have your fuses.

Posted on May 08, 2008

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2 Answers

I have A toshiba 57HX81 tv red ligth blicking.i found (2)5 amp pico fuses at F850 & F851 & (1) pico fuse 2AMP at F852 would replacing these fuses bring the tv back to life.


Too many possibilities to predict if the fuse replacements will make the set function again but I suspect your main power supply has failed so if the fuses blow after replacement, you may have to have the supply repaired or replace it.
You might check, using your model number, at the site below to see if they have a power supply 'pull' available from their stock. They part out retired sets of all kinds.
Jimmy's Parts

Nov 27, 2010 | Toshiba 57HX81 57" Rear Projection...

2 Answers

Power light on front flashes continuously and TV won't turn on


unplug TV for 5+ minutes then plug back in ... might work but this usually is caused by some other internal problem that may require service.

Sep 28, 2009 | Toshiba 57H81 57" Rear Projection...

3 Answers

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.

Jan 04, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 42H81 Fuse Type


Speed rating is micro = any chemical micro fuse will work,5 amp, of course.Not necessary to use Mfr. part........T.

May 27, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba 50h81 has power but no picture or audio


is your high voltage still comming up?
ok turning up screen controls with tv on. what do you see?

Apr 11, 2008 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba TV 50HX81


Check fuses on Power Supply board (F850, F851, F852) and all other fuses. Replace blown fuses (will need an ohm meter to check fuses). I would also replace the two convergence amps (STK392-110's on the signal board, the big black ICs on the two heat sinks). This worked for me.

Mar 30, 2008 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Indentifying fuse type on tac0151 chassis


Are just regular fuses 5A/125V. You can replace them with anytype 5A fuses.

Jan 05, 2008 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba TZ50V51


First step is to use an ohmmeter and check all fuses including
small,soldered in kind called micro-fuses.....F850,F851,F852 etc
.................................T.

Oct 03, 2007 | Toshiba 50HX81 50" Rear Projection...

3 Answers

Flashing red light


You might want to check http://tacpservice.toshiba.com/TACP/subpages/pdfs/TechBulletinsTV2002.pdf the first Item talks about power LED lights Power supply does not start

Sep 27, 2006 | Toshiba 57H81 57" Rear Projection...

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