Question about Philips 20PF4121 20 in. EDTV-Ready LCD Television

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Hi I have a Philips 20PF4121/05 FlatTV. It won't turn on and the green light is flashing. It did the same thing yesterday and then it eventually came on. Do you know what the problem could be? Thanks

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Posted on Jan 02, 2017

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SOURCE: Philips flattv wont turn on

I had the same sympton on my tv...it worked fine one day and the next day it would flash a green light a few times you would see the screen power on, but still be dark then the power light would go red. I couldn't do anything on the tv no menus or sound. It turned out to be a bad power supply, a new power supply will run around $200-300 - in my opinion it wasn't worth fixing. My neighbor was able to fix my tv - he repairs electronics - ended up cost me $100.00 - its been running for 7 months now no problems so far...I can have him fix this for you if you are in the area - shipping makes this to expensive..he is located in south jersey...or you can try a tv repair shop ( i called for this but they wanted between $75-100 to just look at the unit + repair cost - i would of been back to the 200-300 range) let me know if you need help...John
netplus@comcast.net

Posted on Oct 09, 2008

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SOURCE: Philips 42 inch HDTV - "FlatTV" Plasma -- does not turn on.

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

  • 1156 Answers

SOURCE: Hi my philips flat tv won't turn on? The green

Hello,
Power supply board is dead.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
You can change the power board yourself , it very simple, but must taken to avoid high voltages in panel, please note

Posted on May 06, 2011

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Well, personally I would say it is not worth fixing. The typical life span on flat panel TV's is about 5 to 7 years. Your set is close to the end of it's life cycle. Secondly, most experts recommend replacing your set if the cost of repair exceeds half of the cost to replace the set. By the time you pay the diagnosis fee, part cost, and labor cost, I think you will see what I'm talking about.

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Hi! i have a philips 20pf4121/05 flat tv.it won't turn on and green light is flashing few times and that s it.do you know how i can fix the problem?


Not likely to be a do it yourself repair. From the model number it is a 20 inch and if the power supply board is bad may not be economical to fix not to mention quite often on the smaller sets parts do not exist.

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I have a Philips 42pf5321d/37 that won't turn on.


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Hi my philips flat tv won't turn on? The green


Hello,
Power supply board is dead.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
You can change the power board yourself , it very simple, but must taken to avoid high voltages in panel, please note

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Philips flattv wont turn on


I had the same sympton on my tv...it worked fine one day and the next day it would flash a green light a few times you would see the screen power on, but still be dark then the power light would go red. I couldn't do anything on the tv no menus or sound. It turned out to be a bad power supply, a new power supply will run around $200-300 - in my opinion it wasn't worth fixing. My neighbor was able to fix my tv - he repairs electronics - ended up cost me $100.00 - its been running for 7 months now no problems so far...I can have him fix this for you if you are in the area - shipping makes this to expensive..he is located in south jersey...or you can try a tv repair shop ( i called for this but they wanted between $75-100 to just look at the unit + repair cost - i would of been back to the 200-300 range) let me know if you need help...John
netplus@comcast.net

Oct 08, 2008 | Televison & Video

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