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Re: trying to find out what parts needed to fix panasonic...
If your TV model is TH-42PZ80U, and you want to replace the whole power supply unit, shopjimmy.com has them for $160. But for each parts# on that board itself, you need to find a Service Manual to look up that part.
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These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
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
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.
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 Ebay.com to buy a whole refurbish power supply board for the replacement.
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.
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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.