I have a Panasonic Plasma TV, Model # TC-P55GT31 and recently the screen went blank and I am seeing the Red power light blink 7 times consecutively with a slight pause in between before repeating the 7 blinks and pause again. Right before the screen when blank, TV was attempting to turn on like normal, Red power light lit up, then screen flickered quickly a couple times and made a quick high pitch sound before one final flash and then blank screen with Red power light beginning to flash 7 times. I have read a few blogs and watched a couple how to videos to see if I could determine the root cause. I have removed the back panel, ensured connections are solid and removed any dust/dirt. One video explained a troubleshooting technique which I followed: 1. Disconnect SC20 from SC board 2. Plug in and Turn On 3. Result is 8 blinks instead of the original 7 4. The guy in the video replaced the SU, SD, and SC boards and TV is working as expected. So, my question for you is this: 1. Are there any other troubleshooting techniques I can try to further isolate/determine the issue? If so, what are they? Can you send a video link? 2. Would you recommend replacing all 3 boards? SU, SD, and SC board? I really appreciate any help or feedback you could provide. Let me know if you need any additional information to better understand my issue. Thanks for your help and looking forward to hearing back. Ray Quevedo 310.666.6302 [email protected]
I am having the same 7 blinking lights.There is videos on you tube that may give you some ideas on what to check not sure just how far you have gone so far. From what I have studied there is a way to check the sc, su and sd boards with a meter but none of it gave me any answers.
some models have the boards separate and others are incorporated into the sc board. I suspect yours may have the boards separate. Good luck
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