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Philips 29PT5408/01 Chassis: L04E - Fault code

Discussion in 'Electronic Repair' started by Patrick Craenen, Jun 12, 2007.

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  1. Brand: Philips
    Type: 28PT5408/01
    Chassis: L04E

    Symptoms: Set does power up normally picture seems to be normal but
    a little out of focus, after 10 to 20 minutes set goes to standby mode and
    front led showing a fault code blink sequence:

    1 long and 11 short flashes, led color is red for complete sequence.


    Can anybody tell me what this fault code means as i don't have a service
    manual.

    Thanks in advance,
    Patrick Craenen
     
  2. Jerry G.

    Jerry G. Guest

    The fault could be in the power supply, scan amplifiers, or in the
    high voltage section. Most of the time, it is faulty components that
    are going more out of specs as they heat up. This type of fault is not
    able to be found without proper troubleshooting.

    I would suggest taking the set to a service center to have it properly
    checked. This is not the type of problem you will fix at home by
    simply messing around inside the set. There are also some serious
    safety issues when working inside of TV sets.


    Jerry G.
    ======
     
  3. Thank you for your reply.

    I've been into TV repair for years so i know everything i need to know
    about safety precautions while working inside TV sets, but thanks for your
    concern anyway. I just want to know the description that is in the manual
    for this error code or advice of technicians who have experienced the same
    fault code with this type of chassis.

    Regards,
    Patrick Craenen
     
  4. tekman2006

    tekman2006 Guest


    Replace IC (TDA6108AJF) on CRT PCB
     
  5. Putting it on test the set operated normal for 2 days being on for more
    than 5 hours a day. Today the same problem occurred after approximately 4
    hours of being on. Switching the set back on immediately after the problem
    makes it work for no longer than 15 minutes before it goes to standby
    mode producing the same error code. This has to be a temperature related
    problem. Still got no insight in the meaning of the error code: 1 long and
    11 short blinks of the red power led.
     
  6. Putting it on test the set operated normal for 2 days being on for more
    than 5 hours a day. Today the same problem occurred after approximately 4
    hours of being on. Switching the set back on immediately after the problem
    makes it work for no longer than 15 minutes before it goes to standby
    mode producing the same error code. This has to be a temperature related
    problem. Still got no insight in the meaning of the error code: 1 long and
    11 short blinks of the red power led.
     
  7. Thanks for your reply.
    I will replace the TDA6108AJF later this week and keep you posted about
    the results.

    Greetings,
    Patrick Craenen
     
  8. Found a service manual for the L04E AA chassis.
    If anybody needs it, let me know.

    Regards,
    Patrick Craenen
     
  9. Replaced the TDA6108AJF today but the problem stays.
    After 10 minutes error code 11 again.
    I'm beginning to suspect a intermittent short in the the CRT.
    Sometimes the set runs normal for hours and sometimes for a few minutes so
    don't think the occurrence it is a temperature related.
    Sprayed freeze on the TDA6108AJF and other components on the CRT PCB
    without any significant effect.

    Patrick Craenen,
     
  10. Sometimes the picture flashes green and or red with high intensity, not
    always but mostly causing the set to go in to "black current loop
    instability protection" turning the set into standby and making the power
    led flash the error code 11. It is always possible to turn the set back ON
    with the remote control until the next occurrence of the fault.

    Patrick Craenen
     
  11. Sorry for double posting but posted this to the wrong thread.

    Picture of the set is loosing sharpness.
    Adjusting focus voltage on the flyback does not make any improvement.

    Patrick Craenen
     
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