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I have a Panasonic CRT TV TX29-P150X bought in Dubai. When the TV is cool it turns on for about 30 seconds and goes on standby by itself again with the red light on. Now it is on permanent standby until the TV cools off then it turns on again and then again goes off after 30 seconds. What could be the problem? My technician has replaced all the CAPS, one resistor and the regulators but still no go. What could be the problem?

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Sounds like power regulator section circuit fault; or fault at its horizontal scan output stage. Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.

Posted on Jul 12, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Does not turn on.

i had my power supply blow on mine within the first year took it in because i had extended warranty and they fixed it, only problem was finding a dealer in my area to fix it, then took over a week, because of customer support issues

Posted on Nov 04, 2007

zjut
  • 106 Answers

SOURCE: panasonic th-42pa20 plasma 42 inch tv

Try to replace the Main Power Supply board first.

Posted on Jan 01, 2008

dickgs
  • 22 Answers

SOURCE: TV turn on and off

Your TV has a power problem, it maybe high or low supply voltage that causes the TV to turn it self off because of an error. A technician from the manufacturer knows what error it has just by looking at the flashing standby light. Best is to take it to an authorize service center for repair... ^_^

Posted on Jan 16, 2008

  • 1 Answer

SOURCE: Panasonic Viera TH-42PV7HS Plasma keeps shutting down

Hi to all, My 42" Panasonic plasma have the same problem. It turned itself off and now red light flashes 7 times, than after short pause 7 times again. And so on. Any ideas what is wrong??

Posted on Oct 23, 2008

djchillsnyc
  • 151 Answers

SOURCE: panasonic viera tv won't turn on. Power light

hello, you have a either your su, sd or sc boards fualty and it is a driver sos1 thats what the manual reads the best thing to do if your not electronically inclined or able to fix it is to get a service manual and make sure it is for your specific model and size you will find what the 7 blink codes mean, on my side i have a 42 in pana the service manual for this set and your is similar so since it is not the same model i cant tell you exactly what the truoble is but your best bet is to find a service manual find the 7 blink fualt then without getting ripped off you will know what the service man needs to do if you dont know or cant replace the parts yourself that is besides having to download firmware from your computer to a sd card and update your set but you need to solve the blinking code first it may solve the entire issue. the tv should come on when you resolve the blink codes or replace the fualty board or boards

Posted on Oct 14, 2009

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