Comments on: Sharp MZ-80K Power Supply repair

By: Nigel Percy

Nigel Percy — Mon, 07 Mar 2022 18:53:48 +0000

@Peter Fairly certain it will be the same problem as above. Mine had the same issue. Shorted tantalum capacitors. There are four of them, I would replace all four even if they are not all shorted.

By: Peter

Peter — Fri, 25 Feb 2022 18:31:58 +0000

Hello, I have a Sharp MZ80K and have the problem with the power supply, after connecting to the power supply, the F101 500mA fuse is blow in the power supply, do you have any idea what the matter may be?
Thank You Peter

By: Paul hudson

Paul hudson — Sun, 14 Oct 2018 13:00:24 +0000

@Michael Just wodering if you ever managed to get it Fixed

By: Paul hudson

Paul hudson — Sat, 13 Oct 2018 22:37:07 +0000

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.

By: Phil Steele

Phil Steele — Thu, 03 Dec 2015 19:35:32 +0000

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

By: Ged

Ged — Mon, 08 Jul 2013 22:06:42 +0000

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

Thanks
Ged

By: xAD / nIGHTFALL

xAD / nIGHTFALL — Sun, 27 Jan 2013 18:52:41 +0000

@Michael

Hi Michael,

The values are: 10uf 55v

Here the Service manual core and powersupply of MZ80k:

http://www.sharpmz.org/mz-80k/download/sm80k.pdf

By: Michael

Michael — Sun, 27 Jan 2013 16:34:39 +0000

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.

Thanks
Mick