Question about Panasonic TH Televison & Video
Power suply turns on. But power suply gives buzzer. Does not display picture. Wich part have to replaced from power suply. Pleas advice me. Thanks.
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Posted on Jan 02, 2017
check out this website, it's got everything you need. I have to give all the credit to Alain, a brilliant guy in France who dug in and solved the problems. he gives instructions for the professional to fix the problem, but he also gives the sources for the power supply board to be purchased and for the little chip that causes most of the problems. I decided to take a risk and save some money and bought just the chip for $20 and very carefully soldered it in after removing the old one. The tv is fine a month later. The board comes out with no soldering, just some quick connectors and the back of the tv will come apart after you remove all the screws and the base by gently prying the back case from the front bezel along the sides of the tv. if you look closely, you will see the small cavities to pry from.
here's the website:
Posted on Aug 06, 2008
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
Do not buy anything from LCDPayless. They are crooks. I order power supply for Protron 32" and they sent me some garbage that is not working. I returned it and they refused to reimburse me full amount and then they claimed they didn't receive it at all. STAY AWAY FROM THEM THEY ARE THIEVES.
Posted on Feb 11, 2010
Yes, you have power supply issue.
the power on circuit is malfunctioning and the flashes is the indication that the voltage levels for the power on regulation is not correct therefore shut down to protect the circuit from further damage. You TV unit needs servicing by an plasma TV specialist.
Also check to see if you do not have the TV in sleep or hibernation mode.
Posted on Apr 23, 2010
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most of the time the led in front of the tv will blink red and that will tell the technician wich circuit to look in. if it does blink at all when it shuts down then the problem is more than likely in the power supply. the part number for that is 313819875691
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