Question about Panasonic TH-42PD50U 42 in. Plasma EDTV

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10 flashing lights and no power; What is the problem and can I fix it?

I have the Panasonic 42inch TH-42PD5OU and I bought it 2 years ago. The TV shut down yesterday and is not coming back to life. It has 10 FLASHING LIGHTS next to the power button. I called a repair store and they said it most likely was a problem with the power supply and needed to be replaced for 800.00-900.00 dollars. What is the 10 flashing lights indicate? Can I order the needed part on my own? Can I replace the part on my own? I have read that these TV's are notorious for having this issue, please help. Thanks You Eric

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Re: 10 flashing lights and no power; What is the problem...

Eric, where are you located and where did you purchase this TV set?

Posted on Jul 25, 2007

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Re: 10 flashing lights and no power; What is the problem...

Hello, there is a problem with DT board. In order to pinpoint the error please disconnect the DT board. If the set powers up (starts-up) with the DT board disconnected please replace the DT board. If you need more info please advice. Arpi

Posted on Jul 15, 2007

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No power, no blinking lights for my panasonic th-42px60u TV. I bought my TV new about 7 years ago. I have had no problems with it until today. I was watching a program I heard the click I normally...

the power supply inside the tv, is what it sounds like to me. I fixed a 50 plasma about a year ago that all it needed was a 20 cent capacitor. but you might find the power supply for yours on ebay for kit 20 bucks or a used board about 50. this is not a for-sure fix, but if you can fix it saves you about $300+ just be careful when working on it you dont crack the screen.
the one I fixed was a first generation plasma flat screen tv and it price was about 10 grand. I love it it still works good and has a nice picture.I have the most expensive TV on the block ! it likes it's power though 500 watts .
So in summery, the two things I have found over the years in my "look what I found honey" tv projects is that the power supply has failed or the screen light driver needs to be replaced. in the last 30 years I have only purchased 2 new TV's and fixed and gave away to friends about a 100. and that was before I had internet and parts had to be hunted down by catalogs and phone,
SO go ahead and try fixing it, if you cant fix it Give it to your local TV repair shop for parts, he might help you out in the future if you need parts, to fix another stray you bring home ?
Jay... The Pool Pump Repair Guy in Longwood Florida 32750

Feb 08, 2014 | Panasonic TH-42PX60U Television

1 Answer

TH-50PX600U Panasonic Plasma TV power light flashes 10 times

10 blinks Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS. You must ahve through knowledge in electronics to detect the exact faulty board and to repair this set. If you are not sound enough in electronics, get this set repaired either by the authorised service center for Panasonic, or by any well experienced service technician.

Just try this link, and select the site named Electro-help. All proceedings to repair this fault is explained in detail there.

Jul 06, 2012 | Panasonic Flat Panel Televisions

1 Answer

Panasonic th-50pz800u shuts down and i can not turn back on, red light flashing 2 times, sometimes 10 times

Good day!!!

That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Jun 20, 2012 | Panasonic Viera TH-50PZ800U Plasma TV

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.

Apr 27, 2010 | Panasonic Viera TH-42PX80U Plasma TV

1 Answer

I bought my plasma tv over 1 year ago but only set

it's a defect. we call it red blinking death. the boards inside the tv has gone bad.

Oct 17, 2009 | Panasonic TH-50PX75U Plasma HDTV

1 Answer

New 42inch plasma turned off while watching, can't turn on

Panasonic requires an authorization number first from them. Our parts suppliers require that before we can even order the part. I recommend calling a svc co. to have it looked at, preferably an authorized panasonic service center, it will be much faster.

May 31, 2009 | Panasonic Viera TH-42PZ80U Plasma TV

1 Answer

Panasonic th-50pz80 10 flashing blinking red lights

The way to solve the problem with the TH-50PZ80U blinking light problem is to not buy Panasonic Products. I have had my TV about 21 months and it has started with the blinking light problem, just out of warranty. Panasonic is aware of this problem and refuses to do recall or fix the tv unless you are within the warranty or have bought the extended warranty. Legally they are within their rights, but I am also within my rights to air my complaint and inform others of this below par product. Who wants a TV that they have to unplug for a while and pug it in again for it to work. I want to push the power button and it come's on. I will never purchase another PANASONIC PRODUCT.

Jan 03, 2009 | Panasonic Viera TH-50PZ80U Plasma TV

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