Question about Panasonic Viera TH-42PZ80U Plasma TV

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Trying to find out what parts needed to fix panasonic th-42pz80u

It blinks 7 times so from what i have found out it has a power supply problem. Warranty is expired. Just need to know what parts i need because panasonics list has to many parts to figure it out.

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If your TV model is TH-42PZ80U, and you want to replace the whole power supply unit, has them for $160. But for each parts# on that board itself, you need to find a Service Manual to look up that part.

Posted on Feb 02, 2009

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You have to open up the tv and get the part number from the part itself.

You can get get parts for this tv at

Posted on Nov 26, 2011


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The blinking is a symptom of power supply failure

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Panasonic th-42pz80u...dead LED blinks twice at turn-on...the 15v supply on pin 1 of P7 comes up for a second then shuts down

I'm no expert but I have the same tv I'm trying to fix,different problem from yours.I think you can take a resistance reading from that pin to ground and if there is a short,you can start unplugging different boards and when you have the right one the short will go away,if not its the power supply.Put in a search on google with something like board layout for TH-42PZ80U and click on the link 11th generation and you can tell if I told you right or not

Oct 12, 2011 | Panasonic Viera TH-42PZ80U Plasma TV

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Ten blinks on my th-42pz80u panasonic. how can i fix myself

You have a power supply issue. You will need to replace the power mosfet Q406 and likely one or both of the 8 Amp ceramic fuses. The Mosfet is under a heat sink which will also need to be removed. It doesn't hurt to double check the rectifier diodes while you have the heat sink out of the wqay. They are probably fine though. There are also two 10 ohm fused resistors. They are the two small white ceramic boxes R410 and R413. One of these may be open as well.
Parts can be found on ebay.

Aug 27, 2011 | Panasonic TH-42PZ700U 42 in. Plasma...

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I have a panasonic TH-42PZ80U plasma tv. The indicator like is blinking 10 times. I have tried powering the unit down and and resetting it by holding the power button in for 10 seconds. I have heard...

Blinking 10 times or what ever the blinks is,if is on the LED power light indication?Yes,this problems is not the tv Tuner signal board problems.It is the tv power supply board is the problems.Repairing this problems for a friend this by replacing the power supply board before it work.It also a Panasonic Virera Plasma tv too.Try website like to buy a whole refurbish power supply board for the replacement.

Jan 09, 2011 | Panasonic Viera TH-42PZ80U Plasma TV

1 Answer

My Panasonic TH-42PZ80U has a blinking light. It blinks two times.

Generally a two blink code means a faulty power supply. You can buy a replacement power supply online. I've seen them as low as around $120. I'm doing factual research for a potential class action lawsuit regarding these blinking light problems, so I'm pretty familiar with this stuff now. From most of the complaints I've seen people post, if you have a tech replace the power supply it usually costs between $450-$600 including the tech's labor time.
I'd like to hear more about your personal experience with the television. If you would be willing to share your story with me, please send me an email at

Oct 15, 2010 | Panasonic TH-42PZ80U 42 in. HDTV-Ready...

1 Answer

TH-42PZ80U blinks 4 times but, can't turn it on with TV button or the Remote.

4 blinks is power supply failure will need to bench tested and p/s replaced. Usually when powers supply's fail in the Panasonic they take out the A board and sometimes the SS board so be careful on repair charges usually NWR

May 01, 2010 | Panasonic Televison & Video

3 Answers

TH-42PZ80U Panasonic Plasma, red light flashes 10 times

Panasonic said "A" board,
A board SOS Detect (Explanation)
10 Blinks SOS: The voltage regulators IC5400 and IC5401 in the A board generate SUB9V and SUB5V. The 9V and 5V from these ICs are monitored by IC1100. Any abnormality on the SUB9V or SUB5V lines, triggers the shutdown circuit and the MPU shuts down the unit. The power LED blinks 10 times.

But need to measure the connection SC2, if it short, it will be the SC board.

The knowledge obtain from: Real case of repair by myself.
Information from Panasonic training manual.

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3 Answers

My panasonic hdtv th-42pz80u has a red power light that blinks on and off and the tv will not turn on. how do i fix this?

How many times is that light blinking? For example a 7 blink error code would blink 7 times pause 7 times etc. What is your's blinking?

Dec 10, 2009 | Panasonic Viera TH-42PZ80U Plasma TV

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My set wont power up. the indicator light blinks red 10 times, pauses and continues

check power supply board and replaced main board
Manufacturer Panasonic Part Number TNPH0716S

Nov 02, 2009 | Panasonic Viera TH-42PZ80U Plasma TV

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