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

305 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

224 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

155 Views

Last post by exxos
Fri Aug 18, 2017 3:31 pm
NetUSBee Lite problems on TT: Any thoughts?

Last post by stephen_usher « Mon Apr 23, 2018 9:48 pm
Replies: 10
by stephen_usher » Mon Jan 15, 2018 9:32 pm
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I've a NetUSBee Lite unit which isn't working correctly on my TT but is working on my STE and I wondered if any of you might have some hints as to...
10 Replies

320 Views

Last post by stephen_usher
Mon Apr 23, 2018 9:48 pm
Mega STE Switch Replacement

Last post by derek2210 « Mon Apr 23, 2018 9:45 pm

by derek2210 » Mon Apr 23, 2018 9:45 pm

Hi,

The F10 key on my Mega STE has a broken keyboard stalk is broken. This which is the part the Key Cap locates on.

I have dismantled the keyboard...

0 Replies

12 Views

Last post by derek2210
Mon Apr 23, 2018 9:45 pm
new PSUs in my Falcon causes video output to fail

Last post by exxos « Tue Apr 17, 2018 1:33 pm
Replies: 7
by kodak80 » Sun Apr 08, 2018 5:57 am

OK, I have two brand new PSUs. An Exxos PSU and a Centurion Technologies PSU. When I install these in place of my original PSU, the video ouput no...

7 Replies

169 Views

Last post by exxos
Tue Apr 17, 2018 1:33 pm
Mouse spare part anyone ?

Last post by DrF « Fri Apr 13, 2018 8:42 pm
Replies: 6
by Marsupilami » Sun Apr 08, 2018 9:06 pm

Hi,

My mouse is broken, it's a tiny piece of plastic holding one of the optical wheel.
It seem the previous piggy...sorry owner...tried to fix it...

6 Replies

243 Views

Last post by DrF
Fri Apr 13, 2018 8:42 pm
Ultrasatan / 1040 STF Trouble

Last post by exxos « Sun Apr 08, 2018 9:51 pm
Replies: 3
by Marsupilami » Sun Apr 08, 2018 2:42 pm

Hi,

I need help with my atari 1040 STF (full stock configuration).

My problem is that with ultrasatan, the ST is loosing the disk/folder content...

3 Replies

136 Views

Last post by exxos
Sun Apr 08, 2018 9:51 pm
Mega ST4 working but only showing 2mb

Last post by exxos « Sun Apr 08, 2018 9:33 pm
Replies: 7
by Forgottenmyname » Sat Mar 31, 2018 6:08 pm

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...

7 Replies

214 Views

Last post by exxos
Sun Apr 08, 2018 9:33 pm
DualTOS assembly accident

Last post by Bobrane « Thu Mar 29, 2018 10:44 pm
Replies: 24
by Bobrane » Fri Mar 16, 2018 6:23 pm
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Hi,

This question is mostly for Exxos.
I've assembled my Dual TOS kit, i had plugged it in my motherboard, but i wanted to disconnect it for some...
24 Replies

432 Views

Last post by Bobrane
Thu Mar 29, 2018 10:44 pm
Falcon NVRAM problem

Last post by gazak28 « Mon Mar 26, 2018 9:27 am
Replies: 4
by gazak28 » Sun Dec 10, 2017 7:12 pm

Hi all,
I am on here to get some advice.
I recently installed an Exxos NVRAM into one of my Falcons and am having some troubles. I am lucky enough to...

4 Replies

360 Views

Last post by gazak28
Mon Mar 26, 2018 9:27 am
MegaST 4 will not boot, but looks fine with diagnostics

Last post by guus.assmann « Sun Mar 18, 2018 9:42 pm
Replies: 11
by guus.assmann » Thu Dec 28, 2017 10:03 pm
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Hello,

Today I've found a strange puzzle.
A MegaST 4 board will not boot, no display and no floppy activity.
Looks like an impropper reset.

So I...
11 Replies

524 Views

Last post by guus.assmann
Sun Mar 18, 2018 9:42 pm
Mega STE, explosive boot

Last post by rubber_jonnie « Fri Feb 16, 2018 8:31 am
Replies: 8
by fenarinarsa » Wed Feb 14, 2018 1:55 am

I had a bad surprise when I booted up my Mega STE this evening...

IMG_0966_small.jpg

I tried to remove and replace the SIMMs and it booted, but...

8 Replies

409 Views

Last post by rubber_jonnie
Fri Feb 16, 2018 8:31 am
SCART to HDMI converter

Last post by redhawk668 « Wed Feb 14, 2018 9:46 pm
Replies: 7
by keli » Fri Oct 06, 2017 6:58 pm

I'm having problems with getting an image through a SCART to HDMI scaler I bought to connect my Mega 4 to a monitor.

There is a faint image coming...

7 Replies

567 Views

Last post by redhawk668
Wed Feb 14, 2018 9:46 pm
4.5Go SCSI HDD

Last post by frank.lukas « Mon Feb 12, 2018 8:03 am
Replies: 5
by francouai » Fri Feb 09, 2018 2:44 pm

Hello!
I have an external big box noisy SCSI drive with a 4.5gi in.
I tried to create partitions on it using HD DRIVERS V9, but it detecting only...

5 Replies

245 Views

Last post by frank.lukas
Mon Feb 12, 2018 8:03 am
Falcon issues

Last post by rubber_jonnie « Wed Jan 17, 2018 2:52 pm
Replies: 8
by JezC » Fri Nov 03, 2017 10:34 pm

Hi,

I'm hoping someone can help me to diagnose the faults & ultimately repair my Falcon.

It's just come out of storage & it boots up & passes the...

8 Replies

450 Views

Last post by rubber_jonnie
Wed Jan 17, 2018 2:52 pm
Keyboard connector

Last post by francouai « Sun Jan 14, 2018 11:59 am
Replies: 3
by francouai » Sat Jan 13, 2018 8:04 pm

Hi guys!

Anyone here know how to remove this white connector from the Momo's keyboard?

IMG_3982.jpg

thanks!

3 Replies

205 Views

Last post by francouai
Sun Jan 14, 2018 11:59 am
PLCC SOCKETS ARE EVIL

Last post by exxos « Fri Dec 29, 2017 2:13 pm
Replies: 18
by exxos » Tue Aug 22, 2017 10:11 pm
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While testing out a booster prototype I found that it refused to work with the 68HC000 CPU. I first thought that there was some problem with...
18 Replies

1031 Views

Last post by exxos
Fri Dec 29, 2017 2:13 pm
Fixing up my MEGA STE

Last post by Bikerbob « Sun Dec 17, 2017 3:33 am
Replies: 32
by Bikerbob » Wed Nov 15, 2017 11:23 pm
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Hey all,

Looking for a hand on some stuff.

New to me Mega STE - couple of issues right off I want to fix.

I have one of the ram sockets with a...
32 Replies

1620 Views

Last post by Bikerbob
Sun Dec 17, 2017 3:33 am
1040 ste TROUBLESHOOTING

Last post by exxos « Sat Nov 25, 2017 9:19 pm
Replies: 5
by Bikerbob » Tue Nov 21, 2017 4:10 pm

Hello all,

Buddy has a 1040ste - thing is mint.. looks barely used.

Had stock PSU and was getting VERY HOT - after so much time, disk access and...

5 Replies

345 Views

Last post by exxos
Sat Nov 25, 2017 9:19 pm
Help resolving STE Booster instability?

Last post by IngoQ « Mon Nov 13, 2017 3:32 pm
Replies: 29
by IngoQ » Sat Oct 07, 2017 1:30 pm
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Hiya,

I'm in the process of fitting my STE Booster and it seems like the machine is quite instable, when switching to 32MHz. I am trying to figure...
29 Replies

1768 Views

Last post by IngoQ
Mon Nov 13, 2017 3:32 pm
Hello guys - TOS206 install issue

Last post by Yod801 « Mon Oct 16, 2017 8:34 pm
Replies: 9
by Yod801 » Mon Oct 16, 2017 12:56 pm

Oi, Oi, Oi
this is Marcus living in Germany. I've ordered 2 sets of TOS2.06, of wich I broke one, for my Atari STE and it still won't work allthough...

9 Replies

516 Views

Last post by Yod801
Mon Oct 16, 2017 8:34 pm
STE video synchronisation problem

Last post by Number_Nine « Fri Oct 06, 2017 9:33 pm
Replies: 35
by Number_Nine » Sat Sep 23, 2017 8:43 pm
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Hi there,
I got a PAL Atari 1040STE which has video sync problem, so I've been debugging it today and noticed that VSync and HSync are all right, but...
35 Replies

1954 Views

Last post by Number_Nine
Fri Oct 06, 2017 9:33 pm
Disk read error

Last post by francouai « Tue Sep 26, 2017 7:24 am
Replies: 11
by francouai » Sat Sep 23, 2017 7:37 pm
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Hello guys,

I have plenty of originals disks game for Atari St.
90% of them doesn't work (read error).
I tried to format some of the disk without...
11 Replies

682 Views

Last post by francouai
Tue Sep 26, 2017 7:24 am
Mega STe DIP switch #8 (DMA sound)?

Last post by Pacman « Thu Sep 21, 2017 2:32 pm
Replies: 6
by Pacman » Thu Sep 21, 2017 10:47 am

I'm in the process of repairing my Mega STe and one of the problems I've been having is Stereo sound is not available whenever I try to open the...

6 Replies

438 Views

Last post by Pacman
Thu Sep 21, 2017 2:32 pm

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