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The circuit board has a 25 Amp slow blow fuse is blown

The circuit board has a 25 Amp slow blow fuse on it and it appears to be broken (Blown). Can that fuse be fixed or can some one tell me how to get the new circuit board because the entire refrigerator is not working.

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If your circuit board has a 25 amp fuse that a lot of power, like running the compressor.. you need to have a model and serial number for the unit , there is no generic control board , each manufacture has it's own design

Posted on Nov 15, 2009

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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
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  • 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.
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      • Used a fast blow 2 Amp for F852.
  • PD0073 SIGNAL Board
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    • Re-soldered adjacent pads that looks suspicious

Total Cost to Repair about $10
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  • Already owned Service Manual and Circuit diagrams from a different 2004 repair.
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