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marmotta

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  1. marmotta

    LC TDK PSU issues

    Solved! Is a thyristor
  2. marmotta

    LC TDK PSU issues

    The others two diodes is c82m and is marked on pcb as CR51 CR52, the lost component is IC55 (CR is used for the diodes on this pcb)
  3. marmotta

    LC TDK PSU issues

    Seems to be very different
  4. marmotta

    LC TDK PSU issues

    On the pcb is marked as diode... you can shot a photo of the entire pcb?
  5. marmotta

    LC TDK PSU issues

    Thanks for the link, but I think the best solution is to see another tdk 699-0153....
  6. marmotta

    LC TDK PSU issues

    Yes is strange... the circiut already have 2 rectifier diodes (on the heatsink) this psu need three diodes? Or is a thyristor?
  7. marmotta

    LC TDK PSU issues

    Yes LM7812 have the gnd on center pin...
  8. marmotta

    LC TDK PSU issues

    LM7812 is good?
  9. marmotta

    LC TDK PSU issues

    Massa is ground in Italian I try with generic 12v regulator? Positive regulator I think...
  10. marmotta

    LC TDK PSU issues

    This can help?
  11. marmotta

    LC TDK PSU issues

    Can be a CT7912? Positive or negative? ....the old component is destroyed, I tested it same as thyristor and is died...
  12. marmotta

    LC TDK PSU issues

    Help!!!!!!
  13. marmotta

    LC TDK PSU issues

    Damn! You can't read "TYN"?
  14. marmotta

    LC TDK PSU issues

    I use a phone with max zoom and led light.... or is total black?
  15. marmotta

    LC TDK PSU issues

    You can verify the code of IC55? You would do me a big favor
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