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When power button is pushed power light goes off ten tomes and repeats sequence what is problem

Power supply board and both sustain boards.

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What is the brand name to your TV? 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.
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

Posted on Dec 16, 2014

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Toshiba 50hp66 Plasma repeats power sequence without turning on

A case of which came first the chicken or the egg, Power supply board may be the issue or the sustain board--have you looked for the usual bad caps on the power board?

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I have a panasonic plasma TH-42PWD8 bought one 2 years ago but did not use it. Now i fixed it and started watching and then after one hour suddenly i see that the screen goes blank and the LED light to...

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If you can't find anything wrong then the entire board will have to be replaced.

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RCA61DLP42 rear projection TV displays dim picture for 30 sec with no audio. Then screen goes dark and power light blinks three times. It usually tries to start up again, with the same sequence of events...

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Please Help! We have LG Plasmas and both TV's when you go to turn it on it clicks on/off and won't come on at all. The red light turns green for a second and goes right back to red???

You could have problem with power supply or sustain board.
If problem was developing slowly ( it was taking longer for TV to turn on, sometimes several attempts pushing power button on remote or set) than it is most definitely Power Supply problem that involved bad capacitors. If problem happened suddenly - it could be either or both boards involved.
I would recommend professional to diagnose it. If your TV is smaller than 40" - just forget about it and invest in new one. Repair will not be cost-effective.

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1 Answer

My set wont come on.

The tv power supply board is dead.That the board where,the power a/c cord plug into it.That the power supply board.Tries websites like to buy a whole refurbish power supply board for the replacement.

Jul 16, 2010 | Panasonic Viera TH-50PX80U Plasma TV

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Sound is on but screen is black, remote changes channels but no picture

First make sure to hit the menu button on the TV's remote and if nothing is there then friend while the set is on turn a bright flashlight on and shine at angle into the set push the TV menu button if you can see a image then your back light is not working.
Cost backlights around 150.00 and power supplies around 100.00. Well this should help you friend.

Feb 03, 2010 | Hitachi UltraVision 55HDS69 55 in. Plasma...

1 Answer


Could be power board. Check for swollen capacitors . If ok next check buffer boards for burnt ic. With set unplugged unplug power board from sustain boards. Plug back in and see if it turns on. Unplug again and disconnect buffer boards from sus board plug power supply back into sus to see if it powers on. If it does then buffer boards bad. Isolate upper and lower to Determine which one is bad. Just always remember to disconnect power board from sus boards when disconnecting panel to buffers. Power supply stores a lot of energy and will burn these connectors while reconnecting them.

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1 Answer

P50hdtv10a y-sustain and pcb

I had this problem with a different brand plasma and it turned out to be cracked or missing solder on the power board lead to y sustain. I removed the power board, desoldered the connection, clean it up and then resoldered the connection. Everything works great now.

Jan 23, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

Power Up Problem

You have a 8.6v supply error according to the 7 error code being displayed, what you can try is when the set goes to blinking disconnect the Y sustain board (if looking at the tv from the back the board on the left) from the upper left side of the power supply, if the error code stops then you know your Y sustain board is pulling down your power supply and causing the error, if the error code continues you have a probelm with your Logic Board (located under your Small Signal Board) disconnect this from the Y sustain board and see if the error code stops if it does you know that the Logic board is bad, if the error code is still blinking then the 8.6v supply line from the Power supply is faulty and the Power Supply needs to be replaced

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could be a y-sustain board, av board or power supply board. i would think y-sustain if i had to guess

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