Question about Panasonic Viera TH-46PZ85U Plasma TV

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Panasonic Plasma TV TH-46PZ85U Power supply problem

I have a Panasonic Plasma TV TH-46PZ85U and I'm receiving the two blinks code.
The tv is not turning on and after some researches I know the problem is the power supply.

My question is:

If I buy the power supply (model ETX2MM704MG) can I switch the part by myself?
Is it just take out the screws and cable and plug the new power supply? Or I really need a technical guy?

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 44 Answers

SOURCE: 46pz85U two binking red light - no 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 Dec 03, 2009

  • 8457 Answers

SOURCE: TH-50PZ80U POWER INDICATOR LIGHT KEEPS BLINKING

Power board it dead,take the tv aparts.Check for Capacitors parts for puff up or burst open.Know how to solders?replaced these capacitors in the power board.Or replaced the whole power board.Tries Shopjimmy.com,Ebay.com.

Posted on Jan 19, 2010

SOURCE: Panasonic TH-50PZ Plasma TV won't come on.

I had the same issue twice with a TH 42PWD5. turns out it was my UPS that was killing the switching power supply. Warranty covered it but when I removed the UPS not a single issue in 3 years. 

Posted on Jul 01, 2008

  • 61 Answers

SOURCE: Power light blinking 2 times

2 blinks means the unit is having problem with 12 volt supply.
while power on you can check 12DC on power supply before shutdown.if the voltage is constant before shut down I would recommend to replace D board.

Posted on Oct 09, 2008

  • 1 Answer

SOURCE: Panasonic TH-42PX60U plasma TV: red blinking light

are you using a PC to feed a signal or maybe a cable with an adapter?
I had the same issue when I used one of the rear HDMI ports to show a PC display. Apparently there is a software difference between the rear and side/front ports. Inputting the PC through the side HDMI port has solved the problem for me (so far!)

Posted on Apr 21, 2009

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