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TechnoTrend LCD TV-2712 on, no pic or sound.

Hi, my flat screen turn on, but nothing more. No pic, no sound.

Thank you for your advice.

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 135 Answers

SOURCE: No picture on TV with powerlight on

If you press the power button *on* your TV (rather than using the RC), does the power light still stay on red rather than turn green?

Posted on Jan 05, 2008

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  • 44 Answers

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.

Posted on Jun 25, 2009

ekcnoel
  • 998 Answers

SOURCE: philips lcd flat srceen

Good day Sir, the problem of your tv is the power supply if you remove the back cover of your tv, try to look for bulge up or leaky capacitor the bulge up is that the top is not perfectly flat and the leaky has a wet mark at the bottom of the capacitor this causes a low and unfiltered dc output, It will cause your main board to malfunction and the relay will keep on triggering until the capacitor holds enough power to turn on the relay. In order to resolve this problem you should replace the defective capacitor but be sure to remember the proper position because it has a polarity. Note before removing the back cover of your tv be sure to unplug it. Or if you are not handy in electronics I suggest that you should contact a technician to do it for you and save you from stress, Best regards.

Posted on Aug 06, 2011

gopakumarg43
  • 75311 Answers

SOURCE: SONY flat screen will turn on green light showing but no picture. TV turns off in 5 seconds. Advice???

Sounds like display panel fault. If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Posted on Jan 10, 2017

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