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Wayne Cooper Posted on Dec 20, 2017

I have a Panasonic tv model TC-55AS680U that turns off then the light blinks with a sequence of 1 blink pause 1 blink pause ETC.. does that tell me what component is bad

5 Related Answers

Anonymous

  • 10594 Answers
  • Posted on Apr 15, 2009

SOURCE: Sony KP-46WT520 Standby Blinks 10 Times

High voltage in TV got problem and thats why TV gives 10 time blink error code.
Qualified TV tech will fix it as its bit complicated fix.

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Martin Murray

  • 1623 Answers
  • Posted on Oct 30, 2009

SOURCE: Panasonic Plasma TH-42PZ77U Power Light Flashing 7x

1 Blink SOS: This shutdown operation is usually caused by a lack of communication between the A and the D boards.
1 Blink SOS: This shutdown operation may be caused by the improper connection of a SS board connector to the panel.
2 Blinks SOS: Pin 87 of the MPU IC9003 monitors the 15V line. During normal operation, the transistors Q9053 and Q9054 output a high to pin 87. If the 15V line is missing or shorted, a low is provided to pin 87. As a result, the unit shuts down and the power LED blinks 2 times.
3 Blinks SOS: IC9807 is a 3.3V regulator located on the D board. Its output is monitored by IC9003. If the 3.3V is not present at pin 86, the MPU shuts down the unit. The power LED blinks 3 times.
5 Blinks SOS: Pin 85 of the MPU IC9003 monitors the 5V line. During normal operation, the transistors Q9051 and Q9052 output a high to pin 85. If the 5V line is missing or shorted, a low is provided to pin 85. As a result, the unit shuts down and the power LED blinks 5 times.
6 Blinks SOS: Pin 90 of the MPU IC9003 monitors the status of the SC board. During normal operation, the transistor Q6581 and IC6581 output a low to pin 90. If the SC board becomes defective, a high is provided to pin 90. As a result, the unit shuts down and the power LED blinks 6
6 Blinks SOS: 6 blinks of the power LED may also be obtained from pin 3 of IC9003, the DRV_RESET input. The D board provides the 5V source needed to power the C boards. On the C2 board, the 5V is routed back to the D board via connector C20/C10, C11/D31 causing pin 3 of IC9003 to be high. If 5V is not routed back to the D board, pin 3 of IC9003 goes low. The set goes into shutdown mode and the power LED emits 6 blinks.
7 Blinks SOS: Pin 93 of the MPU IC9003 monitors the status of the SC, SU, SD board. During normal operation, the photo-coupler PC6480 outputs a low to pin 93. If the SC, SU, or SD board becomes defective, a high is provided to pin 93. As a result, the unit shuts down and the power LED blinks 7 times.
8 Blinks SOS: Pin 91 of the MPU IC9003 monitors the status of the SS board. During normal operation, pin 8 of connector SS23 outputs a low to pin 91. If the SS board becomes defective, a high is provided to pin 91. As a result, the unit shuts down and the power LED blinks 8 times.
10 Blinks SOS: The SUB5V and DT9V sources created on the A board are monitored by IC1100. If they are not present at pin 30 and 34, the MPU shuts down the unit. The power LED blinks 10 times.
10 Blinks SOS: The F_STB_15V of the P board, as well as the derived SUB5V and DT9V sources are monitored on the A board for excessive current. If a short circuit is developed in one of the supplied lines, pin 114 of IC1100 receives a high. The SUB5V and DT9V lines are also monitored for excessive voltage. When an over-voltage condition is detected, a high is also output to pin 114 of IC1100. The DT9V is provided to a DC/DC converter to create the BT30V for the tuner. If the BT30V becomes excessive, a high is output to pin 114 of IC1100. A high at pin 114 of IC1100 causes the unit to shutdown and the power LED to blink 10 times.

Chi Chu

  • 8457 Answers
  • Posted on Nov 06, 2010

SOURCE: I turned on power and red light is blinking but tv

Tries unplug,replug the tv back like an hour later.The tv now,should resetting itself back to the factory setting.The tv should work now.Not,than the tv power supply board have problems,not giving the tv it wright voltages anymore.The tv power supply board that the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Chi Chu

  • 8457 Answers
  • Posted on Jan 19, 2011

SOURCE: TV will not turn on. Problem with the Panasonic

Tries tv unplug,replug it back like about an hour later.By letting the tv resetting itself back to the factory setting.Now the tv should be working again.If still have the same result.Mean ur tv power supply board have problems and the causes.That the board,where the power a/c plug into it.Tries websites like Shojimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Anonymous

  • 14553 Answers
  • Posted on May 26, 2012

SOURCE: Panasonic Viera 65 inch tv shut off, will not turn back on. Red light blinks 7 times.

Power supply or related to it.

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Related Questions:

1helpful
1answer

My Panasonic plasma tv model tc-p50s30 has 14 blinking lights I tested the SU and SD boards and they are good

Are you sure its not 7 blinks then a pause and 7 more as according to the service manual the blink codes for a TV like yours only goes to 12
0helpful
1answer

I have a 55 Panasonic LED LCD- MODEL NO. TC-55AS680U - TV Turns on for 5 min., then shuts off and the red stand by light blinks continuously.

No guarantees, but first unplug the unit (when it is on), wait 15 or so minutes, plug it back in and see if this recycling move will fix it. Also, check to make sure you haven't inadvertently set some kind of timer. Good luck . . .
0helpful
1answer

Panasonic TC-P55UT50 plasma went black. power light blinks 7 times, pauses blinks 7 times. Is this a power board? or Y-Sustain?

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/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
0helpful
1answer

Model pt-47wx52f powers off when turning it on

The model indicated has a self check: the power light will if the set does not come on blink in a sequence of blinks like 3 blinks, pause and 3 blinks etc.

Let me know the error code so I can assist you Before you rate this information.

SD TECH
0helpful
1answer

Does anyone know what a "d" board is for a 53 Rear projection Panasonic Tv? If so, where can I get one and is it hard to repair on my own?

The D board is the deflection power board the power cord goes to ---not available from Panasonic.

For me to help I need to know what set does or does not do.

This model has a error code, if it tries to turn on and shuts off the power light blinks a sequence---like 3 blinks, pause or 5 blinks pause.

The more you tell me the better I can help.

SD TECH
0helpful
2answers

52 inch panasonic projection tv won turn on and flashes what appears to be a diagnostic code?

The most common error codes are when the set does not turn on the power light on the front blinks in a sequence---most common is 3 blinks, a pause and 3 blinks etc

If you have to, unplug the set and try to turn it on again and see what the sequence of blinks is.

Let me know what you find and I will try to tell you what it means.

rate this solution as I do this here for Free.

SD TECH
0helpful
2answers

I try to turn it on but nothing happens

Let me know if the power light on the front of the set blinks----most of these sets have a error code--Also confirm actual model number to me and I will assist you.

For example: 1 blink a pause 1 blink etc is short on 140 volt line.

A sequence of 3 blinks pause, 3 blinks etc is SHORT PROTECTION---I CAN INSTANTLY TELL YOU WHAT THIS MEANS.

There is one other very common problem with this model---There is a CAPACITOR in the high voltage
circuit that fails a lot on this set---it is not an expensive part and I can tell you how to find it--on a few sets it will take a transistor near it out--

Usually if the cap or transistor are gone you may not get a error code----if just the cap is bad sometimes you will after a few minutes with the set on see a band of white noise to the middle or right side of the screen----I HAVE SEEN OVER 50 OF THESE SETS WITH THIS CAP BAD.

I can, if you are able to solder etc---tell you the best way to get at the suspect parts.

Let me know what you have found.

IF this information has helped you, rate this solution as I do this here for free.



SD TECH
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