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Posted on Jan 24, 2018

Hi I have a philips LCD tv model no 42pfl7621d/10 when plugged in the green light comes on the relay clicks but there is no picture or sound, the back light does not come on either. After 2.5 mins the relay clicks there is no response from the remote and the set keeps clicking in cycles of 2.5mins

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Jose Poveda Snr

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  • Contributor 28 Answers
  • Posted on Jan 24, 2018
Jose Poveda Snr
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Joined: Apr 22, 2009
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The amount of red clicks will show you the fault, Example, one long red click is the starting point then count the number of short reds them foes to a long red to end.

5 Related Answers

gysgt2u1

  • 35 Answers
  • Posted on May 08, 2009

SOURCE: NO PICTURE, NO SOUND On My Plasma TV.

Should have been 3300 UF 10V caps that were bad? Shouls have been replaced with 3300UF 18V. 50V is huge. If it was replaced with a 50 the polarity may be wrong or the cap it too big to be seated property. Sometimes the caps just dry out and even a normal looking one will be the culprit of no OSD. Are you getting an LED fault code blinking? That should be a red led. Do you hear the relay clicking.? When you replaced the caps did you charge them? Just plugging in the set without trying to power it on for about 20-30 mins. I may be able to help you

gysgt2u1@yahoo

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Anonymous

  • 44 Answers
  • Posted on Jun 25, 2009

SOURCE: Hi. My Philips flat TV will not show any picture

I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsung. Known to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio connections. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. Is a Link to a photo of the PCB. Make a note of the locations of all cable connections then unplug them all. Un-install PCB, Check all Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. Look to see if the Caps are deformed and or split at the top. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.

Anonymous

  • 4090 Answers
  • Posted on Aug 30, 2009

SOURCE: Takes 5 mins to exhibit picture

a failing video board

CoppellTVRepair.com

  • 778 Answers
  • Posted on Nov 05, 2009

SOURCE: Hi, I have a Philips model 37PF7321d/37, 37 inch

The power board numbers you need to search for on eBay is 310432847531 or 310432838621 - they are compatible according to Philips.

Anonymous

  • 52 Answers
  • Posted on Nov 14, 2009

SOURCE: samsung lcd is after turning on clicking for about 10 min

TV has bad caps on power supply they need to be replace.

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