Sharp MZ-80K Power Supply repair

Have been replaced 4 tantalum capacitors short-circuited with 4 electrolytic capacitors. The computer has been tested and works perfectly.

  1. Michael
    January 27th, 2013 at 17:34 | #1

    Thanks for sharing the photos. I was wondering if you remember their values and which one fits where? The capacitors on my PSU blew up and am unable to determine their value.


  2. January 27th, 2013 at 19:52 | #2


    Hi Michael,

    The values are: 10uf 55v

    Here the Service manual core and powersupply of MZ80k:

  3. Ged
    July 9th, 2013 at 00:06 | #3

    Thanks to your useful instructions, my MZ-80K is now running again!!


  4. Phil Steele
    December 3rd, 2015 at 20:35 | #4

    Hello, I have a Sharp MZ80K also and have the same problem with the power supply.

    Having not used the computer for quite some time when I switched it on smoke started coming from the power supply so I switched it off straight away.

    Do you repair these power supply’s?

    Thanks Phil

  5. Paul hudson
    October 14th, 2018 at 00:37 | #5

    Yes same thing happened to me . Plugged in psu to test output voltages and it blow the Tantalum cap all but one now looking into replacing them with electrolyte cap.

  6. Paul hudson
    October 14th, 2018 at 15:00 | #6

    Just wodering if you ever managed to get it Fixed