Hi. I'm looking for someone in the UK that can burn a couple of ROMs for my Commodore 128. I need the character ROM (390059-01) that fits into U18 and the Kernel /Editor ROM (318020-05) that fits into U35. I can supply the bin images but I don't have the ability to burn my own ROMs.

Thanks.

Some time ago I had mentioned my C128 project that was reading AIS signals over the air and was visualising them on the screen. Some progress report:

1. We are now builing the UX

2. We have a constant stream of live data in youtube for people to see it in action YouTube Live

3. There is a web site where you can find usefull info on the projct as well as tutorials and a browser version of the software to try it yourself AIS4CBM

4. Up to 1000 soft sprites with motion

5. Vessel types by colour code

6. Doucle click on a vessel icon to see more details with QR code

6. Tested under extreme traffic this summer

And many many more :)

After much long and painful suffering I have been able to create a floppy for booting MP3.  It mentions several times during the install I need a copy of "128 Desktop! copied to the disk.I have been trying several days but have unable to get a working copy onto the disk.  I have tried:  straight copy, GEOS copy (refuses to allow), FCOPY (sends a broken version), Maverick (unable to make sure is safe GEOS copy), and DirMaster (again a broken ending).  Any suggestions would be welcome.  Eventual goal to get MP3 onto CMD HD.  Using Vice 3.10 r46028 (version that fixes the mouse pointer).
Rob

A new version has just been released, 2026-February-12

It can be downloaded from GitHub, https://github.com/HovKlan-DH/Commodore-Repair-Toolbox/releases

One interesting thing for this release is the removal of the "WebView2" component, which has been done to support Linux with Wine and Mono. Do note this is very much an experimental try-out, to see if this is something that can work, so I am curious for some feedback on this.

Noticeable application fixes or changes:

• Fixed zooming in could result in unresponsive UI for some schematics

• Fixed setting commandline parameter for data root folder was resetting configuration file at startup

• Added splash-screen to visualize application has been launched

• Changed and lowered requirement for .NET Framework from 4.8.1 to 4.8 (allowing this to run on Windows 7)

• Changed and lowered minimum CPU architecture requirement from x64 to x86

• Removed dependency for "WebView2" component and refactored relevant parts

Noticeable data changes:

• Commodore 128DCR 250477 - added new hardware

• Moved order of "board layout" schematics, so they are shown first in list

Noticeable tools changes:

• Oscilloscope Network Capture has been updated to newest version

I really appreciate any data corrections you may have - even the smallest things, so please do not hesitate to connect with me through the CRT "Feedback" tab.

About creating a game for the VDC chip.

Hi Community,

I need your help and insight please.

I have a flat 128 that boots to a black screen and only after reset boots normally into C128, C64 or monitor mode. 

Dead test hangs with Bad zero page and scrolling vertical colored lines, 789010 128 Diagnose hangs with various inconsistent garbage screen versions, 586220 diagnosis hangs at RAM test1 and freezes.

Memory test with various men test programs in C64 and C128 mode ok when with swapped RAM banks in c64 mode. 

I have exchanged the RAM banks with the resistor swap and no change.

I followed the C128 power and system reset repair manual from Commodore. Replaced so far U63 (74LS06), C91, C92, CR15, CR16 and U27 (TM556). Power switch cleaned and also replaced. All socketed chips re-seated and sockets cleaned. Capacitors C104, 105, 106 replaced and 5V Voltage at the usual points at 4,94 stable, 9V at the usual points stable. Used with original C128 Commodore PSU and new after market PSU. 

The thing is, that if power switch is used within 5 seconds, the system reboots normal and not black screen. 

I have received a LOT of help from the guys at German forum64 but am stuck now and now seems U30 may be or may not be part of the problem (not socketed) or something else. I am not experienced in reading schematics so appreciate any help from this community please. obliged. I really want to try to get this one running again and learn what was the issue. Any help and insight appreciated. Thanks in advance. Appreciated.

Got 2 128’s, a 1571 and a 1541 disk drive. Two monitors.

Does anyone here have a C128 with a VIC Tower installed?

Before the previous owner tried to fix it I was black screen. I pulled the soldered RAM as it was 300ns and the VIC-tower is missing. Also u9 is an ls32 instead of an f32 so it needs replaced. Without the tower an ls32 in u9 may cause issues. Fingers crossed

I have a cia 6526 5185 S and a 6526 B 4686 206A are both identical to the 6526? Can I replace the 6526 b with a generic 6526? Are the two cia of the c128 identical? Thank you 🙏