HARDWARE ISSUES

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The "BAD DMA" - The Myth , The Legend, The lies.

Last post by exxos « Tue Aug 22, 2017 10:46 pm

by exxos » Tue Aug 22, 2017 10:46 pm

666.jpg

The Bad DMA has been circulating around the Internet since the dawn of time. Where the -38 is apparently the route of all evil and every...

0 Replies

706 Views

Last post by exxos
Tue Aug 22, 2017 10:46 pm
GENERAL TIPS

Last post by exxos « Sun Aug 20, 2017 10:24 pm

by exxos » Sun Aug 20, 2017 10:24 pm

MACHINE DEAD ST/E/F/M/MEGA
If there is no lights on the keyboard either power or floppy , then likely the PSU has died.

2 or 3 BOMBS ON POWER UP...

0 Replies

548 Views

Last post by exxos
Sun Aug 20, 2017 10:24 pm
READ ME FIRST

Last post by exxos « Fri Aug 18, 2017 3:31 pm

by exxos » Fri Aug 18, 2017 3:31 pm

If you are asking for help to repair your machine then state as much information as possible. Posting things like Why does my ST not boot isn't...

0 Replies

457 Views

Last post by exxos
Fri Aug 18, 2017 3:31 pm
Falcon issues

Last post by Steve « Mon Feb 18, 2019 5:39 pm
Replies: 1
by darkxavier » Mon Feb 18, 2019 5:28 pm

Hi
I bought a falcon off eBay from a seller who used the machine for sequencing. Booted up fine, so was happy with purchase. I got a parcp-usb, and...

1 Replies

20 Views

Last post by Steve
Mon Feb 18, 2019 5:39 pm
PAK issues

Last post by pakman « Sun Feb 17, 2019 10:30 pm
Replies: 134
by pakman » Sat Jan 26, 2019 5:36 pm
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.. as my PAK still doesn't work and I know everything else on it does.

Some questions on that:
- Which PCB revision do you have (photo maybe, both...
134 Replies

1389 Views

Last post by pakman
Sun Feb 17, 2019 10:30 pm
STe booster v 1.5 36Mhz

Last post by rubber_jonnie « Wed Feb 13, 2019 11:51 am
Replies: 61
by nemox » Sun Jan 27, 2019 7:55 pm
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Hi
Today i install this booster but, when i use ultrasatan = bombs and coruptet SD card:-((

floppy, RAM, stability OK, only ACSI(ultrasatan)...
61 Replies

1008 Views

Last post by rubber_jonnie
Wed Feb 13, 2019 11:51 am
Atari Falcon 030 Board mysteries

Last post by mikro « Mon Feb 11, 2019 7:19 am
Replies: 2
by gordon.walker » Sun Feb 10, 2019 8:35 pm

Hello everyone, My first post here. I recently brought a Atari Falcon 030 from eBay as spare or repairs. All good so far as it powers up and runs as...

2 Replies

101 Views

Last post by mikro
Mon Feb 11, 2019 7:19 am
BAD ROM CRC IN CHIP E

Last post by tzok « Wed Feb 06, 2019 10:07 am
Replies: 11
by francouai » Mon Feb 04, 2019 3:54 pm
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Hello Guys!

I'm upgrading one of my Atari 520 STE from stock to 4096ko and TOS 2.06.

I swapped the old 1.62 TOS, removed the two resistances on...
11 Replies

184 Views

Last post by tzok
Wed Feb 06, 2019 10:07 am
16 MHz 1.5V booster on STm

Last post by exxos « Tue Feb 05, 2019 5:47 pm
Replies: 1
by nemox » Tue Feb 05, 2019 5:15 pm

hi
I have 520STm with install ATBUS TOS CARD from HARD&SOFT(this is IDE card with TOS 2.06) and question is, how to create the CE pin for the booster...

1 Replies

61 Views

Last post by exxos
Tue Feb 05, 2019 5:47 pm
STFM Booster 2.3 + Dual TOS Kit, TOS 2.06 Issue

Last post by GadgetUK164 « Fri Feb 01, 2019 12:37 am
Replies: 50
by leon22 » Mon Jan 14, 2019 6:38 pm
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Hi!

I have installed the booster and the Dual TOS Kit and the connections (ROM Select and 16MHz Wire) and for TOS 1.04 everything
works perfectly...
50 Replies

878 Views

Last post by GadgetUK164
Fri Feb 01, 2019 12:37 am
How do I Hook Up an External MPF920 as Drive B

Last post by rubber_jonnie « Wed Jan 30, 2019 11:16 pm
Replies: 9
by rcamp48 » Tue Jan 29, 2019 9:33 pm

Hi:

How do I hook up my modified Sony MPF920 as an external drive in the external enclosure. I have tried plugging the ribbin cable in one way, the...

9 Replies

173 Views

Last post by rubber_jonnie
Wed Jan 30, 2019 11:16 pm
Floppy Drive read problems

Last post by Forgottenmyname « Tue Jan 29, 2019 9:55 pm
Replies: 10
by Forgottenmyname » Sat Jan 19, 2019 7:47 pm
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Evening All.

I had a bit of time today working with one if my non functional Mega STs.

With a floppy connected and disk in the drive it would come...
10 Replies

196 Views

Last post by Forgottenmyname
Tue Jan 29, 2019 9:55 pm
Reset/RAM issue.

Last post by exxos « Mon Jan 28, 2019 4:19 pm
Replies: 1
by Starlight » Mon Jan 28, 2019 4:14 pm

Maybe not an issue but a mild annoyance is there a way to get the RAM to clear faster on a stfm/ste?
Every time I use the reset button and/or turn...

1 Replies

48 Views

Last post by exxos
Mon Jan 28, 2019 4:19 pm
Atari ST Spacebar...

Last post by Forgottenmyname « Sun Jan 27, 2019 12:28 pm
Replies: 3
by MarkFixesStuff » Fri Jan 25, 2019 4:58 pm

I have a couple of Atari ST machines and both seem to have the same slightly bowed spacebar with a hairline crack on the front, in the middle.

Is...

3 Replies

133 Views

Last post by Forgottenmyname
Sun Jan 27, 2019 12:28 pm
Damage done to my STE

Last post by sety « Wed Jan 23, 2019 11:59 am
Replies: 16
by rcamp48 » Sun Jan 20, 2019 8:36 pm
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Hi: I would like to ask about my STE , over a year ago I unfortunately did damage to the motherboard by using a cheap soldering iron. I will post a...
16 Replies

367 Views

Last post by sety
Wed Jan 23, 2019 11:59 am
Advice for UltraSatan, Satandisk users - PSU related

Last post by exxos « Sat Jan 19, 2019 9:38 pm
Replies: 9
by Petari » Sun Jun 10, 2018 1:44 pm

Do not use smartphone chargers for UltraSatan, Satandisk. They have enough power for it, but voltage is too low. I received e-mails in past with...

9 Replies

688 Views

Last post by exxos
Sat Jan 19, 2019 9:38 pm
FALCON - NO BOOT - RED screen

Last post by Forgottenmyname « Thu Dec 20, 2018 6:35 pm
Replies: 22
by francouai » Thu Dec 13, 2018 2:13 pm
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Hello Guys!

I recently bough a Falcon 30.
The seller told me that it doesn't boot.
I took it back home and I'm getting this screen.

IMG_8362.jpg...
22 Replies

1866 Views

Last post by Forgottenmyname
Thu Dec 20, 2018 6:35 pm
MPF F11W floppy write protect issue (STE)

Last post by ijor « Fri Dec 07, 2018 2:57 pm
Replies: 12
by exxos » Tue Dec 04, 2018 8:04 pm
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So on my second test machine the floppy drive seems to be stuck in Wright protect. :roll:

To cut a long story short, I traced the WP switch right...
12 Replies

704 Views

Last post by ijor
Fri Dec 07, 2018 2:57 pm
Mega ST4 working but only showing 2mb

Last post by Forgottenmyname « Tue Nov 27, 2018 6:11 pm
Replies: 19
by Forgottenmyname » Sat Mar 31, 2018 6:08 pm
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Hi All,

So I have a V4.0 Mega ST4, which I have saved from a fate worse that death. It's the 32 ram chip model.

When I first got the Mega it had...
19 Replies

1954 Views

Last post by Forgottenmyname
Tue Nov 27, 2018 6:11 pm
FDD not working but HDD is..

Last post by scott.clifford « Tue Nov 27, 2018 2:44 pm
Replies: 2
by scott.clifford » Tue Nov 27, 2018 2:27 pm

OK, so here we go...
The machine.
Atari STE 4MB
NO UPGRADES OR MODS
This is the story.
The floppy drive lights up and does everything its supposed...

2 Replies

178 Views

Last post by scott.clifford
Tue Nov 27, 2018 2:44 pm
STM1 mouse lead

Last post by sandord « Sat Nov 24, 2018 9:24 pm
Replies: 12
by PeteW » Sat Nov 17, 2018 1:28 pm
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My ST mouse is fighting me at the moment. I've been playing quite a few point and click adventures like Monkey Island and the microswitches finally...
12 Replies

568 Views

Last post by sandord
Sat Nov 24, 2018 9:24 pm
MC68882FN16A for MEGASTE

Last post by PaulJ « Wed Nov 14, 2018 8:20 pm
Replies: 6
by francouai » Wed Nov 14, 2018 3:39 pm

I recently installed a MC68882FN16A FPU on my MEgaSte.
let's say.. for fun.. because I don't need it. :D

I'm not sure why, but when I start...

6 Replies

314 Views

Last post by PaulJ
Wed Nov 14, 2018 8:20 pm
Installing a new SCSI HDD into my MSTE

Last post by Petari « Wed Nov 14, 2018 3:17 pm
Replies: 3
by francouai » Wed Nov 14, 2018 2:41 pm

Hi guys!

My internal 40mo SCSI Drive from my MegaSTE is ... very small :D
I put few games and demos and it is overfull.

I have installed another...

3 Replies

200 Views

Last post by Petari
Wed Nov 14, 2018 3:17 pm
Determined to add internal IDE to my STFM

Last post by sety « Mon Nov 12, 2018 9:58 am
Replies: 19
by sety » Tue Nov 06, 2018 8:09 am
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After trying to build the Popsel & Perra IDE interface a few times with the very vintage PNG-carbon image transfer method (what a messy job! and with...
19 Replies

862 Views

Last post by sety
Mon Nov 12, 2018 9:58 am
Cable info to connect a Mega ST keyboard to a standard ST

Last post by JezC « Mon Nov 12, 2018 8:42 am
Replies: 2
by JezC » Sun Nov 11, 2018 9:48 pm

Hi, I'm hoping someone can help point me in the right direction.

I've got an original Mega ST keyboard & used to have this connected into a stock ST...

2 Replies

216 Views

Last post by JezC
Mon Nov 12, 2018 8:42 am

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HARDWARE ISSUES

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