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Circuit diagram

Discussion in 'Electronic Repair' started by [email protected], Apr 20, 2006.

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  1. Guest

    AC fuse, 4 amp, is blown and TV is dead. No other components burnt or
    obviously faulty. It appears to be a power supply problem? Have test
    equipment and out of date experience with electronic (tube) repairs.

    Seeking advice; best place to obtain a circuit diagram?

    Numbers: Model Sharp 14F24C and LL24146. Main circuit board number
    K1530DE 0017.
    Pix tube numbers, 370FCB22A and MIG244194

    Many thanks Lauren
  2. Guest

    At the very least you should make a troubleshooting attempt at testing
    the power supply diodes or bridge rectifier, the B+ filter caps and the
    voltage regulator circuitry.... and always check the HOT and flyback
    derived B+ lines..... report back with your component testing results
    and voltage measurements.
    You should also visit the website for this newsgroup at
    plan to spend some time there looking over the wealth of
    troubleshooting tips, component testing proceedures, repair FAQS and
    important SAFETY information. If after reading through the website you
    are still not certain how to proceed then you would be best advised to
    TAKE your television to a service shop for, at the very least, a repair
    cost estimate so you can make an intelligent repair decision with facts
    instead of internet wild guesses.

  3. Art

    Art Guest

    Check out the LOPT, H-Output, Vert Output, Etc. Repost the actual
    diagnostics results you have done. As posted: Safety is mandated when
    working on these things, from the old valve school, you should be able to
    check this out with minimal aggravation.
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