The power light blinks 12 times and the screen never turns on.

Panasonic Plasma TV Repair - Understanding 14 Blink ...

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Panasonic Plasma 14 Blink Code Explained with Repair Info How to ... I guess I'll try the SC board and if that does not work simply save up for a new ... The red power led was flashing 12 timespause a few seconds then flash 12 again. ... It powers up and shows the green power light is on, but there's no ...

The power light keeps flashing and the tv wont turn on - TV ...

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Oct 24, 2015 - More about : power light flashing wont turn ... December 20, 2013 10:12:55 AM ... sound like it is coming on then it shuts off and the red power light flashes slowly. ... 50in Plasma tv power light is flashing 8 times and won't turn on. ...tv to come on bcause the power button keep blinking my tv will not come on.

It sounds that the main digital board has damaged. 12 blinks indicates it. if you wish to know more check this link for more details about 12 blinks to Emerson TVs

Need to know how many times the led is blinking.

Try this link for more information

Re: tv kdl-55ex620 red light blink 8 times Do a Power Reset. 1. While the TV is off, unplug the power cord of the TV from the electrical outlet. 2. Let the TV remain without power for 60 seconds. 3. Plug the power cord back into the electrical outlet. (If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.) 4. Turn on the TV. 5. When the TV powers on and a picture is displayed, reset the TV to factory default settings.

• If the Reset message does not appear and the TV turns off and on, begin again from step 5.

• If the standby light begins blinking eight times, return to step 1.

6. After the Reset message appears, allow the TV to reset. Do not press any buttons on the remote control or on the TV and do not make any other adjustments for 1 minute. 7. Unplug the power cord from the electrical outlet. 8. Allow the TV to remain without power for 10 seconds. 9. Plug the power cord back into the electrical outlet. 10. Turn on the TV.

• The initial setup screen displays if the above procedures were performed correctly.

11. Follow the on-screen instructions to complete the initial set up. 12. Perform a system software (firmware) update.

12 blinks of standby light indicates 'Scanrate error'. You must have thorough knowledge in electronics to proceed. Actually, this is not a user repairable fault. it is very skilled work.

How are the power and opc lights blinking? Do they blink simultaneously or does one blink then the other? How many time do they blink per second? Also have you had it fixed yet? and if so what was done? I had a similar problem with my set.

KDL- Bravia blink codes (Australian):
2 times-Main power supply voltage error (12V, etc)
3 times-Malfunction of 3.3V line
4 times-Malfunction of 5V line
(Voltage Supply to FE, etc)
5 times-Malfunction of power supply for screen
6 times-Malfunction of inverter or overcurrent, etc
7 times-Abnormal temperature inside unit
8 times-Audio circuit error (amplifier, etc.)
9 times-Fan malfunction
10 times- Digital FE circuit error
11 times-Malfunction of Trident IC or around IC
12 times-BH board error
13 times -Malfunction of balancer
If this is correct the 5 blinks is the power supply having problems, I would much rather change the PS than replace the screen. Also if screen is determine bad, look for class action lawsuit on Sony for defective screen, i am told they know all about this.

I have this model of the sharp tv.Happen to me very often the Power and OPC LED light indicators blink continueosly.Not the power supply board,it the Tuner board that take in the comming broscast signal that have the problems.You still can used this tv.Push the power button sometime the tv it will work right away.Not,each time POWER and OPC lights continueosly blinks.Just push the power button again each time the POWER and the OPC continueosly blinks.Just have push power button again about 4 times each time Power and OPC blinks recycles,it will finally show the backlight and picture come on.My guest,if u do this by pushing power button to recycles about 10-12 times each time the POWER and OPC blinks it time to change the Tuner signal board.

5 blinking lights IS the lamp board, part # 1-468-927-12

hello, usually if your panny is blinking it means theres trouble with your power supply but depending on the number of blinks cuased by a fualty or shorted internal board and this will cuase your tv to go into shutdown mode, it depends on your model number and year it was made.
your best bet is to have a qualified service tech give you a estimate for the repair needed. as long as your screen is okay it will be easy for the service tech to locate and fix your trouble

panasonic blinking codes can pin point the troubled internal part, these blinking fualts are cuase by internal boards with malfunctioning circuts info below for 10th gen 2007 2008 plasma model service

12 Blinks SOS: On the A board, transistor Q2301 monitors the Sound 15V line and the operation of the audio power amplifier IC2301. If the audio output circuit, IC2301, or the 15V lines develops a short to ground, transistor Q2301 goes into conduction and applies a high to pin 118 of the MPU, IC1100, triggering a SOS condition. The power LED blinks 12 times.
12 Blinks SOS: We have also discovered that 12 blinks of the power LED may also be caused by a defective SS board. To determine the source of the shutdown, disconnect the connector D5 and connect the unit to the AC source. If the panel turns on and the LEDs of the SS and SC boards stay on, the problem is on the A board. If the panel does not stay on, the problem is likely to be the SS board.

hope this helps

THE MAIN POWER IS BAD ,TRY LOOK FOR ANY CONDENSER BAD SOLDERING