Panasonic TXL42S10B 42 in HDTVReady TV Logo
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Russell Carter Posted on Nov 08, 2013
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Panasonic TX-L42S10B has power but won't turn on

When the tv is turned on the power led flashes green a few times before flashing red about twice every three seconds. Does anyone know what the solution to this problem is? I have the tools to go about fixing the tv. Thanks!

1 Answer

Steve Mason

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  • Expert 311 Answers
  • Posted on Nov 08, 2013
Steve Mason
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Ok, this may be a silly question but when you turn it on and it starts flashing red, have you tried pressing the stand-by button on the remote. if a tv has been put on stand-by by the remote, and is then switched off by the set, when the set is turned back on it is still in stand-by mode and you need to press the stand-by button on the remote.
other than that I don't know.

Testimonial: "Yeah I tried buttons on tv and remote and it won't respond."

5 Related Answers

Anonymous

  • 113 Answers
  • Posted on Feb 09, 2008

SOURCE: panasonic pt-52lxc66 power light blinks

There are actually two red leds present on your tv and depending on which one is flashing is going to tell you what to replace. 3X on the Temp led will point to a faulty thermistor and you would want to replace this part. If the 3 red blinks are the lamp light than this is a error on the iris position and you would need to have the optical block replaced.

Josh

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charlie rodriguez

  • 152 Answers
  • Posted on Dec 14, 2008

SOURCE: The tv wont turn on

hello 2 blinks on this tv means you have this issue below
PT-44LCX65
2 blinks 5 secs you have your lamp cover open

check for this

hope this helps

Anonymous

  • 1 Answer
  • Posted on Jan 22, 2009

SOURCE: Panasonic TH-50PE700U red light flashing 6 times

Replaced the sc board and tv works fine again.

djchillsnyc

charlie rodriguez

  • 152 Answers
  • Posted on Oct 14, 2009

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

Anonymous

  • 178 Answers
  • Posted on May 10, 2010

SOURCE: TH-42PZ80U Panasonic Plasma, red light flashes 10 times

Panasonic said "A" board,
A board SOS Detect (Explanation)
10 Blinks SOS: The voltage regulators IC5400 and IC5401 in the A board generate SUB9V and SUB5V. The 9V and 5V from these ICs are monitored by IC1100. Any abnormality on the SUB9V or SUB5V lines, triggers the shutdown circuit and the MPU shuts down the unit. The power LED blinks 10 times.

But need to measure the connection SC2, if it short, it will be the SC board.

The knowledge obtain from: Real case of repair by myself.
Information from Panasonic training manual.

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