Question about Sony FD Trinitron WEGA KV-36FS120 36" TV

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Sony Trinitron Wega kv-36fs120 wont turn on, standby/timer LED flashes 9 times.

My Sony Trinitron Wega kv-36fs120 wont turn on, standby/timer LED flashes 9 times. Occasionally the tv comes on but wont cycle on/off again. I've tried leaving it unplugged for over 24 hours, no difference. Any ideas? Have a FD Trinitron WEGA KV-32fs120 TV will turn on occasionally and works fine when it is on. If it gets turned off it takes 2 hrs to get it to come back on. The LED flashes 9 times please help TV was purchased in JAN 2006 Problem started in JAN 2008.

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  • Anonymous Mar 20, 2014

    TV will not turn on when you push power button...red LED light flashes 7 times...have tried using a hairdryer on air vents in back of TV but still did not work

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I have your service manual but I can't find any reference to 9 flashes, are you sure it is 9 with out a pause?
see below from manual.....
Sony Trinitron Wega kv-36fs120 wont turn on, stand - aab0773.jpg

Posted on Jan 31, 2008

  • Soulvisitor
    Soulvisitor Jan 31, 2008

    Sorry can't make it bigger but it seems that the other experts here might have more idea than I



    Cheers S;)

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9 blinks means that D 6116 and D 6301 on the "G" board may need to be replace, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negative).

Let me know if you need more assistant.

Posted on Jan 31, 2008

  • Jaime Hernandez Jan 31, 2008

    You can also bring up these fault codes on-screen to see a list of the problem numbers with the abbreviation of the problem and the number of times this problem has occurred. This is slightly different than entering the service mode. To see the diagnostic screen, press the following buttons: Display, Channel, 5, volume Minus, ( not plus ) then Power. This brings up a screen with a list of the problems and number of times they have occurred. Each of the problems named, are abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated them in parentheses in the text for the "Blinks" described above so you can correlate between the diagnostic screen and the blink codes.

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No zero cross pulses on Pin 45 of IC1001 on A board. Check the collector of Q691 on GK board for 7.5 V standby .It will go to 0 V on start up. If 7.5 volts on the collector Q691 is faulty if no volktage on Q691 need to trouble shoot further in vircuit to Q691.
Let me know if you need anything further.

Posted on Jan 30, 2008

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Hi,

Here is the user guide,go through it carefully and you will find the solution to your problem.

Click here
And im further looking to fix ur problem

Goodluck,
Don't forget to rate me as fixya..

Posted on Jan 30, 2008

  • Priya darshan Jan 30, 2008

    Unplug the power cord and let is stay OFF for about 2 or 3 hours. Then
    power it up again and see what happens. This is what we call hard
    reset. It works to bring the set back to life in about 25% of
    occasions.



    If it does not help after the hard reset above then it will need to be
    looked at by a tech who knows how to navigate around a protection
    failure. The reason it won't come back on is because the protection
    circuit (and electronic, intelligent fuse) has detected a severe
    shorted condition somewhere within the set. It is usually the main
    power supply, the high voltage section or one of the deflection
    amplifiers. But, can be from other sections within the tv. That is
    why you must have some diagnosis completed to find the problem.



    Another cause, less frequent on this class of tv, is from bad or cold colder joints

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