Commodore 64 Repair
Defect:
- Drive access problems (IEC): drive resets but it freez with a “searching for”
Replaced parts:
- Replaced EL7416 with a 7406PC (U8)
Note:
I have also removed a nasty connector welded directly on the c64 userport.
Gallery of the repair:
The Commodore 64 Reloaded MK2 is a C64 Motherboard for building a C64 on your own.
The board is shipped with empty ZIF sockets for the key chips such as CPU, port chips, sound/video chips. All other components are already assembled and pre-tested before shipment.
As opposed to the first C64 Reloaded board, the C64 Reloaded MK2 will automatically identify the installed chips. It will not only generate the correct clocking, but also set the right voltages for the chips that you have chosen. Further, it configures the filter-capacitors for your favourite SID combination. This means that the Commodore 64 Reloaded MK2 is a completely jumper-free design.
The Commodore 64 Reloaded MK2 includes the following on the board:
- All memory
- Flash rom for Kernal, Basic, Character and your own sets of ROMs
- Clock generator equivalent to the CSG8701 chip with two custom crystals
- PLA equivalent to the CSG 906114-01 chip
- Stereo-SID circuit configurable for three different popular addresses
- S-Video and 3.5mm stereo outputs
- USB to serial link for configuring the board with a terminal program
- High-efficiency power conversion for operation from a single 12V supply
- Power switch with integrated reset function
- Six all-black high quality ZIF sockets
source: icomp.de
Directly from the author;
It’s time to announce the upcoming new “Ultimate-64″ board by Gideon.
In order to sustain the love for the Commodore 64, with failing machines, power supplies and flaky old connectors, I proudly present a new main board for your beloved C64 case.
This board is a hardware implementation (FPGA) of the entire C64, and it includes the Ultimate-II+ as well. An ALL IN ONE solution!
…if you want to read more about this project, click here.
source: 1541ultimate.net
The High Voltage SID Collection (HVSC) is a freeware hobby project which organises Commodore 64 music (also known as SID music) into an archive for both musicians and fans alike.
The work on the collection is done completely in the Team and contributors’ spare time and is proudly one of the largest and most accurate computer music collections known.
This update features (all approximates):
- 600 new SIDs
- 139 fixed/better rips
- 1 repeats/bad rips eliminated
- 313 SID credit fixes
- 299 SID model/clock infos
- 4 tunes from /DEMOS/UNKNOWN/ identified
- 21 tunes from /GAMES/ identified
- 16 tunes moved out of /DEMOS/ to their composers’ directories
- 16 tunes moved out of /GAMES/ to their composers’ directories
Download:
source: www.hvsc.c64.org
Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.
Titles:
- Good Guy – Bad Guy
- Abu Simbel Profanation
- GN2P
- GN2P (D64)
- GN2P (EX)
- Abu Simbel Profanation +2
- Katakis +6DHFI
- Paul’s Gamble Machine +D
- The Last Ninja II +8DG
- Cold Devil Preview
- Hollywood or Bust +6DWF
- VVVVVV +
- Zap Zone +2H
- Dark Destroyer 2117 +2 [seuck]
- Zap Zone
- Dark Destroyer 2117 [seuck]
- VVVVVV Preview V2
- Highlander +3DG
- Goat
- Gunfright V1.10
- Zap Zone +2
- GN2P +F
- Bounty Bob Strikes Back – Protected
- Break Free! +2
- Modulot +
- Modulot
- Seawolf +F
- Squad 1 +6H
- Jetpac Wars Preview V2 +
- Crab in New York +
- Grand Monster Slam +5H [ide64]
- Tennis-Cat +2T [english]
- Computer Space 2001 +1JD
- Frutty Man 64 +2
- Rowman
- The Bard’s Tale – Tales of the Unknown +2TD [easyflash]
- Rowman +2HT
- Delta Run [seuck]
- Night Racer +HDFM
- Delta Run +2DH [seuck]
- Alien Attack +1D
- H.E.R.O. II Preview
- Ignition +FTD
- Cubis +1FDT
- Wolf3D (SuperCPU)
- La Carretera [spanish]
- Wurmli +2D
- Galencia Preview +
Download: All Games in One Archive (4893)
source: csdb.dk
Scene World is a C64 magazine on disk dedicated to various activities of both C64 scenes. “Both” means, that we are supplying information and texts of both scenes; NTSC and PAL.
Download: Scene World #27 (D64/D81) (1173)
source: sceneworld.org
Commodore 64C that has seen better days (Recovery Components)
The external case is broken and the keyboard pcb is completely rusty, the rest you can see from the photos.
I recover what remains, only a little bit.
Gallery:
Commodore Amiga 500+ that has seen better days (Recovery Components)
Components Recovered:
- All custom amiga chip.
- Some screws not rusty.
- Chinon Floppy Drive.
- Membrane + Keyboard Controller.
- Springs and keyboard contacts.
- Amiga External Case.
Gallery:
Gift received: Commodore Amiga 500+ / TI-99/4A / 2 x Commodore 64C
Computers:
- 1 x Commodore Amiga 500+ (Spare Parts)
- 1 x Texas Instruments TI-99/4A
- 2 x Commodore 64C (One for Spare Parts)
I thank my dear friend Paolo Cognetti.
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:
- A lot of internal changes.
- But changed keyboardhandling in “Manual Edit” mode, hopefully keyboard works better now.
- Chipmemdetect at startup does more tests to capture more biterrors.
- Also added tests if CPU can do odd/eveb reads and writes. Request by Terriblefire.
- Added a testpicture as GFX Test
- Added test for RTC Chip, reads both types you have to know what chip is in your machine.
- Added a experimental Autoconfig support for Zorro II boards and memory, Remember that you can only run this ONCE.
- Autoconfigcode is based on Terriblefires code with addons by me.
- Audiotest now includes several notes and waveforms and also a module.
Updatehistory:
- 2017-04-15: Added Support for OKI Chipset in RTC Test
- Added (somewhat experimental) support for Autoconfig for Z2 boards.
- Must say thanx to Terriblefire for autoconfig code. (with some changes by my)
- Added test at startup to see if CPU can do odd/even byte read and writes
- Bumped version to V0.9 – Next Stable release
- Released while being at the Revision demoparty.
- 2017-02-25: Moved mainmenu alternatives to make space for more maintest-menus. also added some for future use.
- Started on Others tests/RTC Test for the moment only showing ricoh RTC chip (A4k etc)
- Removed temprary debugfunction added the 18:th.
- 2017-02-18: Minor changes. sometimes when exiting a testscreen you got to the mainmanu instead of the submenu. cleaned up now.
- also added a fakefastmem allocation at the boot so you can run stuff in fakefast by pressing LBM at poweron if needed.
- TEMPORARY DEBUGFUNCTION: while dumping serialport at beginnning, screen also flickers while doing a serial timeout.
- this is to figure out if machine still runs to veryfy I can do serialstuff (and detect failures) if paula is missing.
- will be removed soon as it screws up onscreen colorcodes.
- 2017-02-15: Added a testpicture, testscreen is moved in menu and will still bug. this will be reworked soon.
- 2017-02-04: Simple audiotest is now improved, it now plays different waveforms, I have checked the frequencys with my Rigol scope.
- But 20.6Hz in my headphones sounds weird, maybe should remove it in the test. the only thing not working there now is setting volume.
- 2017-01-30: In Manual edit: added when using “goto memoryaddress” when pressing x it clears the string totally. Also hopefully fixed keyboardbug making
- it more or less impossible to use keyboard on some machines.
- Fixed bug showing strange flickering spritebugs random
- Changed that in initial chipmemdetecting it checks more combinations of bits, this will make detect slower (due to serial output) but will detect more
- biterrors.
- TEMPORARY function: pressing fire/mousebutton in joystickport while poweron will totally disable serialoutput. this is to be able to run with broken
- Paula. Will look into a better solution. so function will maybe be removed.
- Added a testmodule, A groupmember will make a chipmodule for me later to have here. Now using the classic “Echoing”
- 2017-01-06: Long time since last update. Hollidays etc. Anyway some minor internal fixes and a basic low-res testscreen added.
Download: DiagoROM v0.9 Stable (1249)
source: diagrom.com
Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.
Titles:
- Alien +6DG
- C64 Slicks Preview
- Equinox +4
- Outpost +1D
- Soda Shop +4
- Think Twice +TD
- Bigdance &DMT
- Colour Blox
- Clash of Wills &D
- Super Marioahner Sisters
- Zap Fight 2 – Special Edition +4H [seuck]
- Slipstream +2
- Bomb Run 64
- GPAC Dementia Defender +3CD
- Hockey 64 +D
- Bomb Run 64 +
- CRX Race +4F
- Frank Bruno’s Boxing +6DGH
- RobotLand +2M
- Wizball Preview +7
- RobotLand
- RobotLand +
- The Tunnel of the Birds +2T
- Breakout +
- RobotLand +2MF
- The Bard’s Tale – Tales of the Unknown +2TD [easyflash]
- Sum-Ka V2 +TFD
- Bomb Run 64 +
- Zahlenraten
- Bomb Run 64 +2H
- The Adventures of Blackbeard +MD
- Guzzler +8DH
- Ninja +2MDS
- Apple Cider Spider +4D
- Nero [seuck]
- Frogs
- Frogs +KD
- Row Man Preview 2 +3
- Jetpac Wars Preview
- Madam Psychic
- Lunar Lander +2
- Gunfright V1.00
- Pong 1.0
- Break Free!
- Frogs [c128 fix] +KD
- Frogs [c128 fix]
- Sound Expander +FD
Download: All Games in One Archive (4685)
source: csdb.dk
CBMXfer is a front-end to several command-line utilities for transferring files and working with disk images. CBMXfer makes using those utilities easy by providing a familiar windows interface that removes the need to learn the commandline syntax of each program. CBMXfer also includes a multi-format file and picture viewer.
The commandline utilities are:
- OPENCBM – transfers files/images to/from a real CBM drive connected via an ‘X-cable’ on the parallel port.
- CBMLINK – transfers files/images to/from a real CBM drive connected to a real CBM computer connected to the PC via a serial cable.
- C1541 – a utility from VICE that works with CBM Image Files (ie: D64,D71,D81 files).
- NIBTOOLS – Utilities to transfer images via parallel port. Supports protected disks.
- IMGCOPY – Utility to image IEEE and 1581 disks.
What can I do with it?
- Transfer files to or from real CBM drives
- Create D64 and other images files from real CBM disks
- Write D64 and other files back to real CBM disks
- Transfer files from WITHIN Image Files
- View Commodore files (BASIC, SEQ, Binary, ML, Chr Sets, and Images). Supports all all machine types
- ML viewer is a full two-pass symbolic disassembler!
- Simple file operations like copy, delete, rename
- Launch VICE and attach disk images plus autorun
- Zoom Floppy supported.
- Supports 1581 partitions with OpenCBM
- Format disks
- Supports IEEE drives with Zoom Floppy
- Supports reading/writing/viewing P00 files.
Download: CBMXfer v1.00 (1832)
source: Steve J. Gray Homepage
Commodore bag available during the mid-1980s.
Many thanks to my friend Ralf.
Relaunch64 is an IDE (text-editor) for C64 assembler-coding on Windows, Linux and Mac OS X. Relaunch64 has a clean and intuitive user interface, yet it offers many features that make coding faster and easier.
Java 7 or higher is required to run Relaunch64. The program is licensed under the GNU GPL 3 (or higher) and free for private and professional use.
This editor works together with common cross assemblers like Kick Assembler, ACME, or 64tass. Other assemblers might work as well, but syntax highlighting may not be 100% correct.
Download: Relaunch64 v3.3.7 (Windows/OSx/Linux) (1537)
source: popelganda.de
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