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Toshiba 27ax61 television chassis tma509b power led flashes

Power led flashes and relay clicks, problems in deguass circuit, any help appreciated

Posted by dave jones on

  • Anonymous Dec 22, 2008

    I have checked the power supply- all voltages are correct, the set still wont turn on, the relay keeps clicking - i am getting pulses of hv

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Anonymous

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I am working on one with the same symptoms after doing a lot of checking.I connected it to an isolation transformer and stepped the voltage down and noticed a ticking sound coming from the flyback.You may have the same problem.The bad thing is i can't find that flyback as it is no longer available.Sounds like they may have had issues with the flybacks on these models.

Posted on Jan 29, 2010

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TV was working fine. Now it does not start. It makes a clicking sound as if its trying to start. It did this one day and after a few minutes it started. Next day same problem except it failed to start just made the clicking sound. Also it does not shut off to stop the clicking unless you pull the plug.

Posted on Jan 06, 2010

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I dont think your problems in the degussing my friend. Sounds like the sets doing whats its supose to when theres a power supply overload??? we really need more info on this one please.

Posted on Mar 24, 2006

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Hello, just try this first.

Unplugged the unit the power outlet for about 60 sec.Then power it on again. If you have surge strip along the line. You should directly switch in on power outlet only. If this doesn't help.

As the relay is working you have power in standby mode. Check its supply voltages if its ok. Secondly you can check the the B+ supply it is in DC, If this is a crt type tv, check its horizontal output transistor, Check its flyback for short circuit. Capacitor near to it rated almost 800V, and deflection coil.

Just for input, hope it helps



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