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TV goes to standby

Discussion in 'Electronic Repair' started by John, Jan 28, 2005.

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  1. John

    John Guest

    I have a tv thats a panasonic tx25x1 it started to switch itself off and go
    to stand by and wouldn't come back on again for a few minutes. I looked the
    problem up on the internet and found this page.
    http://fileshare.eshop.bg/repair_tips_database/Panasonic_020.html

    In the description the fault I have "int goes to st/by" and says the
    solution is to "check 2 x 270k in pri psu & STR54041"

    Can anyone explain what this means? and how serious is it to fix?
     
  2. Guest


    John:
    As the repair hint said:
    check the 270K resistors in the primary Power Supply and
    check the STR54041 (voltage regulator chip) .... in other words
    you will need test equipment, knowhow, repair experience, electronics
    knowledge, tools, proper replacement parts, etc.
    Now you should understand that this is NOT neccessarily the solution
    for the problem with your television, you might get lucky BUT there are
    dozens of other faults that can cause the exact same symptom. There
    is no shortcut to the old fashion way of troubleshooting and repairing
    televisions.
    I am a little more than concerned that if you did not know how to
    decipher the repair hint then maybe you shouldn't be inside the
    television... lots of dangerous and lethal electrical shock hazards
    inside.
    Be careful and good luck. ... maybe take your TV to a service shop for
    a repair cost estimate BEFORE you get in there and maybe make matters
    worse (i.e. more expensive to fix)
    electricitym
    ..
    ..
     
  3. Jerry G.

    Jerry G. Guest

    Since you have to ask this type of question, I would think you should take
    the set to a service centre to have it repaired. There are too many safety
    issues involved for you to do this type of work. These sets can be lethal.
    The tech at the service centre would even tell you this, if you want to
    confirm it.

    They are recommending to check two particular 270 K resistors, and the main
    switching driver power IC. You will need the proper training, service
    manual, and the test equipment to work on this.

    Take the set to a service centre and have the work done safely and properly.

    --

    Jerry G.
    =====

    I have a tv thats a panasonic tx25x1 it started to switch itself off and go
    to stand by and wouldn't come back on again for a few minutes. I looked the
    problem up on the internet and found this page.
    http://fileshare.eshop.bg/repair_tips_database/Panasonic_020.html

    In the description the fault I have "int goes to st/by" and says the
    solution is to "check 2 x 270k in pri psu & STR54041"

    Can anyone explain what this means? and how serious is it to fix?
     
  4. Thirsty

    Thirsty Guest

    A relative had a tv that would switch itself on, at any hour in
    the night. I found the sensor that receives input from the remote
    control, had the equivalent of silver migration to nearby traces.
    Problem was solved by cleaning the nearby traces with a pencil
    eraser.
     
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