MODIFY SONY MPF920 DRIVE FOR ATARI USE

Update your old 720k to a 1.44 drive etc.
Locked
User avatar
exxos
Site Admin
Site Admin
Posts: 23437
Joined: Wed Aug 16, 2017 11:19 pm
Location: UK
Contact:

MODIFY SONY MPF920 DRIVE FOR ATARI USE

Post by exxos »

DRIVE ID SELECT MOD FOR ATARI USE

(This will be done by default for drives purchased from my store)

image4_184.jpg
image4_184.jpg (242.71 KiB) Viewed 7617 times

The link is moved from SEL1 to SEL0 with a soldering iron. That's it! Your drive has now had its drive select ID altered to work with your ST!



PROBLEM DRIVES

After testing 4 drives out dated JUN2002 on my ST, these all failed to work. I tried one on my stock falcon and while it worked, it was unreliable. A later drive worked perfectly. So the SONY chips are questionable. It is difficult to say if the "E" version is to blame, or it was the year of manufacture to blame. I will try and keep a list of the drives I come across..

I am marking drives as BAD if they have a SONY chip. I never tested if the drives worked correctly as a PC drive or not as I have only been using them on a Atari ST/Falcon. In anycase, I would avoid drives with SONY chips, or drives dated before 2004.

APR 2000 - SONY CHIP - BAD (E/131)
FEB 2001 - SONY CHIP - BAD
JUN 2002 - SONY CHIP - BAD (E/131)
JAN 2003 - Unknown - possible good BH chip (E/131)
MAY 2004 - BH CHIP - GOOD (Z/131)
DEC 2005 - BH CHIP - GOOD (Z/121)
OCT 2006 - BH CHIP - GOOD (Z/121)
JUL 2007 - BH CHIP - GOOD (Z/121)
xxxx 2008 - Unknown - possible good BH chip
APR 2009 - BH CHIP - GOOD (Z/121)

I do not know about any other SONY MPF revisions, this only applies to the MPF920 series.


MODIFY ATARI CASE TO FIT AROUND EJECT BUTTON

6.png
6.png (112.51 KiB) Viewed 7615 times
7.png
7.png (104.58 KiB) Viewed 7615 times


HD SELECT WIRE LOCATION
5.png
5.png (345.27 KiB) Viewed 6473 times




HOME PAGE
http://www.exxosforum.co.uk/atari/last/d ... d/main.htm

STORE LINK
https://www.exxosforum.co.uk/atari/store2/#0037
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Locked

Return to “FLOPPY DRIVES KITS & UPGRADES”