Question about Samsung Televison & Video

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My rear projection 1080i..will not work..all of a sudden..the red power light in front flashes..like its going to work..but the remains a steady red light..with no lights in back and no pic whatsoever..if its convergence..unable to afford the fix..but if a bulb would consider..I just can't afford to waste on not the problem..question is, how's do I know?

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  • Samsung Master
  • 14,553 Answers

Sets that have convergence circuits do not have a lamp or bulb--for more help I need to know the brand and the MODEL number of this set.

Posted on Nov 03, 2012

  • denisefitz61
    denisefitz61 Nov 10, 2012

    It is a Samsung HDTV monitor 1080i model number HC-P4241W...the UL number is77HNE215927 if this makes any difference let me know..only had the tv for a short time..bought it used..I just can't afford to invest if not worth it..or wrong problem..Thank You so much for your help thus far..greatly appreciate you responding..

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Slinteriors
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SOURCE: sony bravia 50" rear projection hd 3lcd tv

3 blinks in sony sets means B+ over current protection shutdown. Problem in power supply Check Transistor T603 And Resistor R672. Hope this helps let me know if you need any further assistance.

Posted on Jan 08, 2008

scott201201
  • 170 Answers

SOURCE: Akai PT50DL24 50 in DLP Rear Projection TV-NO PIC OR SOUND

check for popped or raised tops on caps in power supply. also try unplugging set for 5 minutes and resetting it. How about does your color wheel spin up? if your color wheel don't startup then your tv will also shut down. also check all fans they all should be running at turn on. if all fails i would say its your light engine.

Posted on Apr 10, 2008

  • 213 Answers

SOURCE: My Samsung LCD LA32R7 won't

you have a bad power supply.

Posted on Jun 11, 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

Muzzi_123
  • 749 Answers

SOURCE: I try to power on

you need to test the lamp with a ohm meter, to see if its working correctly

Posted on May 14, 2009

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