Commodore VIC-20 Repair.

Defect:

• Black Screen.

Replaced parts:

• Replaced MOS VIA 6522 (UAB1)
• Replaced BASIC ROMS 901486-01 (UE11)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair

Defect:

• Black Screen.

Replaced parts:

• 2 x NEC D41464D RAM (U10/U11)

Note:

• The two broken RAMs reached 70 degrees.

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:

• RTC Test improved with OKI Chipset support (but RTC test still is kind of buggy)
• Remade the autoconfig handling for much better ZorroIII support etc.
• Possability to turn on/off cache in manual memortedit (this WILL crach your machine on 68000/68010)
• Added an experimental “no chipmem” screen to try to figure out biterrors with rasterbars. (dark bar=dead bit, light bar=working bit)
• Added support for Amiga 1000 with a limited version of DiagROM.
• Parallel and serialporttests using SysTest compatible loopback adapters.
• Diskdrivetests.
• And.. some internal changes and stuff I actually forgotten.

Updatehistory:

• 2017-10-01:
  • Long time since last time:
  • Added tests for Parallel and serialporttesting using SysTest compatible loopbackadapters
• 2017-07-30:
  • Added possability to run on A1000 as bootstraprom. I have removed moduletesting and gfx test-screemn to save space.
  • Some additional bugfixes.
• 2017-07-06:
  • Fixed a bug, when setting DTR high I accidentally put Dikdrive motor on!
  • when no chipmem is foundand no fastmem, instead of just flashing a green screen, it now checks memaddr $400 and shows in stripes biterrors. bright color=bit working, dark=bit error. evbery 15 frame it flashes and steps +4 bytes of memaddr to check
• 2017-06-17:
  • Oh! yes long time. Now DiagROM is opensource avaible at https://github.com/ChuckyGang/DiagROM
  • Totally rewritten Autoconfig, now handles Z2 and Z3 and should be working. if you get stuck in a loop (autoconfig not working) it
  • will halt after 32 “boards”. Also in ManualEdit mode, I have inlcuded a function to turn on/off cache. to debug cacheissues on CPU Cards.
  • BE CAREFUL! this WILL crash if you run it on a 68000/010
  • Also fixed bug of garbage in menus.

Download: DiagoROM v1.0 Stable (987)

source: diagrom.com

Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.

Titles:

• C=Rex Offline
• C=Rex Offline ATL
• C=Rex Offline +H
• Vortex Crystals +10D [2017 full version]
• Vortex Crystals [2017 full version]
• Street Defender – Game for VR64
• CCGMS 2017 V6 [easyflash]
• The Town Dragon
• Street Defender +4D
• X-Out +6DH
• Giana-Sisters 30th Anniversary Preview
• Tombstones – Retirement Day
• Assembloids Basic V2.0
• Rumpelball
• Lightforce +8HD [easyflash]
• Assembloids Basic V2.0 [compiled]
• Lightforce +8HD
• Kings of the Beach +PD
• Lunar Lander
• Giana Sisters 30th Anniversary Preview +9
• Lunar Lander +1MH
• Pirate Island
• Shoot Em Up Destruction Set 2 +2H [seuck]
• Rubicon +4DGH
• Crazy Comets & Mega Apocalypse [easyflash]
• Kobo64 (r221) +4D
• Doctor Doom’s Revenge [easyflash]
• Crazy Comets & Mega Apocalypse [easyflash]
• Bug Splat
• Rubicon +4DGHF
• Kobo64 (r221)
• Cross Chase +2
• Quod Init Exit V1.8
• Quod Init Exit V1.8 +2D
• Kikstart II The Construction Set +HD [Easyflash]
• Dinosaurs +D
• Neoclyps +4DG
• The Fallen Special Edition
• QWAK 1.3 +
• QWAK 1.3

Download: All Games in One Archive (4619)

source: csdb.dk

Commodore 64C Replacement Case (SX-64 Style)

The Commodore C64C replacement case is very nice like the original one.

There are some imperfections in the plastic and in the painting phase, anyway i don’t look for the perfection. who is perfect ? :D

… so if you are not looking for the absolute perfection, i would recommend it to everyone.

Gallery:

12►

source: return-magazin.de

Hoxs64 written by David Horrocks is a Commodore 64 emulator for Microsoft Windows 2K/XP/Vista/Seven (DirectX 9+)

The emulator substantially reproduces this legacy machine in minute detail.

Changelog:

• CIA serial and CNT timing improvements thanks to test programs written by Mariusz.
• Added VIC-II colour palette user configuration dialog box.
• Added command line options (see hoxs64.txt) to support the VICE 64 testbench.
• Changed the colour RAM reset pattern to use bytes $0C and $03 as per the same C64C whose RAM reset pattern is already used.

Download:

• Hoxs64 32/64 bit v1.0.9.4 (853)

source: hoxs64.net

CBM prg Studio Version 3.11.0 is released. There are a lot of new features in this version. I’d really appreciate it if you report any bugs you find or have any suggestions/comments.

CBM prg Studio allows you to type a BASIC or Machine Code program in using a nice Windows environment and convert it to a ‘.prg’ file which you can run on an emulator, or even a real C64 / VIC20 or PET if you’re feeling brave and have the right kit.

CBM prg Studio is the result of merging C64PrgGen and VIC20PrgGen. Adding new features and fixing bugs in two apps which were 95% similar was a bit of a nightmare so merging them made sense.

It was also a good opportunity for a face lift and to add some new features, such as:

• Programs are project based, meaning all related source files, sprite files etc. are kept in one place and multiple source files can be linked more easily.
• Tabbed MDI.
• Syntax highlighting.

What CBM prg Studio isn’t is a front-end for tok64, cbmcnvrt, bastext or any other tokeniser / detokeniser / assembler. It’s all been written completely from scratch.

New features in v3.11.0:

• Assembler:
  • CTRL+Double click on label or variable will take you to its definition.
  • Mouse over a directive to get a tooltip of its usage.
  • Control/screen codes can be embedded in text strings.

• Debugger:
  • Default watch list.

• Sprite Editor:
  • Number keys for quick colour change.

• Screen Editor:
  • Quick colour change.
  • Screen editor can generate data to basic string array.

• BASIC:
  • Super Expander basic extension for VIC 20 projects.

Bugs Fixed:

• Assembler:
  • Having ‘*=’ in a comment causes an error
  • Macros weren’t appearing in the macro viewer
  • Multiple macro parameters in the same line were being ignored.

• BASIC:
  • Incorrect line warning length for VIC20 projects.

• Screen designer:
  • Crash when exporting C128 screens.

• Sprite Editor:
  • Fail when importing from listing when the target line number was also in another part of the listing.

• Character Editor:
  • Fail when importing from listing when the target line number was also in another part of the listing.

See the help for a complete list of new features and fixed bugs.

Note In this version, each target machine can have its own default project directory. If you are upgrading from a previous version (before version 2.5.1) of CBM prg Studio you may be asked to set up your project directories again. Your current projects will not be affected.

Download: CBM prg Studio v3.11.0 (765)

source: ajordison.co.uk

Commodore Amiga 500+ Replace Keyboard Membrane

Defect:

• 50% of the keyboard keys are totally dead.

Replaced parts:

• 1 x Keyboard Membrane.

Gallery of work that was done:

Commodore 16 Repair

Defect:

• Black Screen / No Voltage.

Replaced parts:

• Replaced the Power Switch with a “new” original one.

Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.

Titles:

• Rockit +
• Pentagram V1.30
• The Legend of Sinbad +5PDH
• Rockit +1H
• Bacillus Preview 2 +3
• Cross Chase Preview
• Zatacka
• Grillieren! Preview
• Tour de Europe +1T
• Hyper Blitz +H
• Give That Dog A Bone Preview +
• 3D Skramble +2DGH
• Zatacka +F
• Beer Belly Bill – Grillieren Prv. +D
• Zamzara +5HD
• Jumpin Jack +2DGH
• FIST – First International Singalong Tournament
• Adventure of the Bunker [german]
• Partygames
• Alpha 5 [german]
• Trigon +D
• Wizard of Wor
• B.C. Bill +3DGH
• A Change in the Weather – Release 6
• Alpha 5 +1H
• Partygames +
• Shoot Em Up Destruction Set (Edition 2008) +2 [seuck]
• Iridis Alpha +6DH
• Beholder +4
• Beholder
• Cross Chase (Beta version Aug 2017)
• Cross Chase Preview 2
• Escape from New York +3T
• Cross Chase Preview 2 +3
• Rescuing Orc V1.0.2
• Rescuing Orc V1.0.1
• Beholder II
• Beholder II +5
• Rescuing Orc +5D
• Summer Games I & II +D

Download: All Games in One Archive (4249)

source: csdb.dk

Forth, the Language.

Forth is a different language. It’s aged and a little weird.
What’s cool about it? It’s a very low-level and minimal language without any automatic memory management. At the same time, it easily scales to become a very high-level and domain-specific language, much like Lisp. Compared to C64 Basic, Forth is more attractive in almost every way.

It is a lot more fast, memory effective and powerful. Compared to C, specifically cc65, the story is a little different. It’s hard to make a fair comparison. Theoretically Forth code can be very memory efficient, and it’s possible to make Forth code that is leaner than C code. But it is also true that cc65 code is generally much faster than Forth code.

Download: durexForth v1.6.2 (D64/CRT) + Manual (725)

source: csdb.dk

..from the author homepage:

I have updated the DAILY version now and it now supports the A1000 using a limited version of the DiagROM. I had to remove module-tests and test-screen.  but I guess that is not that important.

 Just use the A1kEVEN.bin and A1kODD.bin files and program to 27C256 proms and replace proms on the A1000 and you are ready to go.

source: diagrom.com

Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.

Titles:

• Silverrock Tribute [easyflash]
• ASCII Chase Preview
• Paranoid +1F
• Spyders +
• Spyders C64 – Chapter 1
• ZE-III Preview
• Front Page &DGM
• SEJD Preview +
• Spyders: Chapter 1 +2H
• Spyders: Chapter 1 +3
• Zap’n'Load +2
• Zwob +TD
• Rogue +6DGM
• La Carretera +T [english]
• The Castle of Doom – Redux +4
• The Castle of Doom – Redux
• The Wall
• ASCII Chase Preview V1.1 +
• Step by Step +1MDS
• Bubble +3DT
• Pengon +1HD
• Techno Sport Steeple Chase &D
• Star Wars Preview +2
• Compu Sport Auto Racing &D
• Stranded
• Itchtris Preview +2
• Itchtris Preview
• Vault Man 2 +2
• Vault Man 2
• Citadel 2 Preview +2
• The Life of a Stickleback +1MT
• Stranded
• Stranded +F
• Vault Man 2 +3HD
• Vault Man 2 +4D
• Bacillus Preview +
• Velcro +
• Protocol Preview +
• Sheep Is a Key Preview
• Jetpac Wars Preview V3 +
• Bacillus Preview +2
• Neptune’s Caverns – Enhanced
• Shotgun V1.1
• Twin Kingdom Valley +1DGM
• 6502 Snake +1
• Competition Karate +2MD
• Shotgun V1.1 +1KD
• Rollin +2DGH
• Velcro +3
• Feud +6DGF

Download: All Games in One Archive (4183)

source: csdb.dk

Commodore 128D Repair #1

Defect:

• Black Screen.
• Garbage Screen.

Replaced parts/Fix:

• 9v AC line Fuse of the PowerSupply.
• Made a bridge of a pcb trace interrupted.

Gallery of the repair:

—————————————————————————————————————————————————-

Commodore 128D Repair #2

Defect:

• Garbage Screen.
• Memory Problems.

Replaced parts:

• Replaced 74LS08 (U61)
• Replaced OKI M3764A [RAM] (U43)

Gallery of the repair:

Commodore Floppy Drive 1541 (ASSY 250442) Repair

Defect:

• Drive access problems (IEC): drive resets but the computer freez with a “searching for”

Replaced parts:

• Replaced EL74S14 with a 74LS14 (UA1)

Gallery of the repair: