The VIC20 – Game & Watch: Super Mario Bros.
Advice for “not” purchases. Compulsive shopping syndrome without a shred of a brain.
A person in need of my help of which i have already repaired several devices has contacted me and asked if i could make a repair of one of his Commodore PET with two different trouble.
The first fault was solved by replacing the UD7 ROM (901465-02) with an eprom (2532), the correct functioning test could be done by connecting the LCD monitor that i use for repairs via a video adapter.
The second fault was brilliantly resolved by replacing the voltage regulator installed on the pcb monitor, a 7812 which on the pin output did not always return 12v but rather a mix between 3v, 6v, 10v.
I also removed some pieces of foam rubber (see photo) which due to the glue used has damaged the back of the monitor PCB leaving obvious traces of corrosion and a black sticky stain that i have removed.
I also rebuilt a missing pin of the ROM UF14 (901447-10) that someone had thought to fix in a very rough way (see photo)
Gallery of the repair:
Download:
DOWNLOAD FIXED! SORRY
NEW TAG: C64 BIG GAME PACK
Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.
Titles:
Download: All Games in One Archive (6311)
source: csdb.dk
This is a Music Collection that can be listened using the BreadAmp v05 and the Ultimate64 by Gideon.
The archive contains the following files in REU format.
Nightfall-01.reu
Nightfall-02.reu
Nightfall-03.reu
Download:
A new version of the firmware for the AVGCART (SD multicart for 8bit Atari) by tmp is released.
Changelog (v0020):
Download:
source: atariage.com
The UnoCart is an Atari 2600 cartridge emulator at low price and open source under a GPL license. It supports cartridges with up to 64k of ROM and 32k of RAM with extensions; BIN, ROM or A26.
It comes with a 3D printed case and it works on PAL & NTSC systems! It will also run on most 7800 machines (but will not run 7800 ROMs).
Most games and demos, including Pitfall II, runs fine on 99% of systems. The firmware has been updated, we are on version 17 released in September 2020 to maker sure of maximum compatibility.
Recent homebrew releases, like Galaga, The End and some others that require DPC or DPC+ commands will not work yet.
Gallery:
Video:
Download:
Atari 2600 UNO Cart Shell: https://www.thingiverse.com/thing:4580701
Before leaving you to the usual and boring description of the product which, among other things, was taken from Wikipedia, i add my opinion;
Among the many uneasy things to use that i own, the Commodore A570 is in the top 10 ranking. :-D
The Amiga A570 is a single-speed external CD-ROM drive for the Amiga 500 computer launched by Commodore in 1992. It was designed to be compatible with Commodore CDTV software as well as being able to read ordinary ISO 9660 CD-ROM discs.
The original designation was A690, and pre-production devices under this name were delivered to developers. The A690/A570 used a proprietary Mitsumi CD-ROM interface. It contained a header for an internal 2 Megabyte fast memory expansion, but this proprietary memory module was never put into production and only a few rare developer examples of this exist today.
It is also notable that by the time of the A570′s launch, the A500 computer had already been discontinued. The Amiga 600 (ostensibly the A500′s direct replacement) was, like the later A1200, incompatible with this external drive. Thus, Commodore were in the position of having launched a CD-ROM drive for a discontinued machine, while a similar device was unavailable for their current low-end Amiga. This move by Commodore marketing department could be justified by the fact that millions of A500 systems existed already, along with considerable demand for Commodore to release a more advanced data storage solution.
The device (like the Amiga A590 hard disk drive that was sold by Commodore for the A500) had no through connector, so it was not possible to connect both an A590 and an A570 to the computer at the same time. The A590, despite having an XT IDE hard disk, also carried a SCSI interface that allowed third-party hard disks and CD-ROM drives to be fitted. While these drives did not carry CDTV emulation, the lack of success of the CDTV format made this a null disadvantage for most users.
Gallery:
A new firmware update for the ARM2SiD/ARMSID has been released by Nobomi.
ARM2SID firmware 3.12:
ARMSID firmware 2.12:
Previous changelog of ARMSID firmware 2.11:
Download:
CompuThink Disk Drive 800k + Interface (DD DSK CTL P2) + DiskMON ROM seems to be the FIRST EVER disk drive for the Commodore PET Computers ever made in 1979 in the United States, maybe even before the official CBM 2040 drive launched.
I have also a partially working “clone” or “prototype” (see photo) of this Disk Drive interface that i have posted on the blog some years ago.
As far as i could understand this interface works only with BASIC 1.0 and BASIC 2.0 because the DiskMON ROM has the starting address $B000 (SYS 45056).
My PET 2001-32 have the ROM of BASIC 4.0 and the UD5 socket where the DiskMON ROM is installed is already used by one of the BASIC 4.0 ROMs, to test the i had to program the EPROMs with BASIC 2.0. (see photo)
Also before testing the interface i had to replace almost all the tantalum capacitors because many were short-circuited.
Capacitors replaced:
Below a video and some photos documenting the full working operation.
Gallery:
Download:
Video:
NEW TAG: C64 BIG GAME PACK
Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.
Titles:
Download: All Games in One Archive (5574)
source: csdb.dk
The VIC-Switch allows up to 8 Commodore computers to connect to a single disk drive, printers, plotters etc.
The VIC-Switch keeps track of who is currently using the device and prevents access to all other computers who might be requesting it at the same time.
Once the first computer is done using it, the VIC-Switch will then give access to the next computer.
The peripheral was made in Sweden by Handic and some models carry the Commodore logo but it doesn’t look very Commodore style
and for that reason i think they were branded by Commodore but not manufactured Commodore .
Gallery:
Philips NMS 8245: The usual melted belt of the Floppy Drive.
Gallery:
Philips Videopac G7000 a little bit Dirty but Working. Nothing to write this time, just needed only a good clean up.
Gallery:
Dirty and Ruined Intellivision *Black Screen* repair.
It would not have been nice to put the intellivision in a very worn state and without a controller inside the spare parts box without even trying it :-)
Obviously the intellivision was not working, black screen.
The repair was simple, i have replaced the AM9114 (U8-B) RAM with a NEC 2114 and everything started working better than before :-)
I have also removed both labels in a pitiful conditions, now it looks better than before.
Gallery of the repair:
What is DiagROM?
DiagROM is a diagnostic tool for the amiga computers.
And it is to be used on defective machines, trying to help no-boot situations etc.
You simply replace the Kickstart roms in the Amiga with the DiagROM. and when poweron. your Amiga will start a diagnostic software. It will try to dump info on the serialport (and actual menus etc aswell) while also trying on the screen.
Changelog:
WOW This is a long time since I updated this. And lets be honest. I have forgot what i have changed.
BUT one thing I just been thinking. I have bumped the versionnumber in the wrong “end”.. so as I am working on a new init-routine. I consider this is the “stable” one.
So I bump the serialnumber to 1.2.1. I have been too busy with hardware so I must confess I haven’t coded so much on DiagROM. I have made some minor bugfixes etc.
I must still warn that if a routine is experimental you cannot really trust the tests.
Anyway in hope for the best in the future. the “daily” will for a while be a little “jumpy” while I get the new init working. This should be useful meanwhile.
Download: DiagoROM v1.2.1 Stable (1051)
source: diagrom.com
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