Archive for the ‘Commodore 64 family’ Category

Japanese Commodore 64

July 15th, 2016 No comments
Commodore 64 Japanese

The Japanese Commodore 64 was introduced in the 1983.

The Hardware somewhat different (and incompatible) Kernal and BASIC to accomodate Japanese katakana characters, 46 total (plus punctuation, diacritics, etc.); many graphic characters replaced in the Char ROM with the new Japanese characters.

Breadbox case and original brown keycaps; SHIFT-LOCK replaced with C= LOCK for the purpose of getting at the katakana; modified keycaps to show the new characters with the colour keys no longer present and the remaining graphic characters significantly rearranged.

Machine started up in English but different colour scheme and only 36863 bytes free; see screenshot. Both Markus and On the Edge remember the original screen as black on pink, but the screenshot and corresponding ROM definitely aren’t.

Graphics and Sound Identical to the breadbox 64.


Commodore 64 with a wrong keycap

July 15th, 2016 2 comments
Commodore 64 with a wrong keycap

Directly from the collection of a dear friend “Andrea Pierdomenico” the Commodore 64 with the wrong key.

The factory was wrong to print the “8″ key but only the upper label and not the front label. I did not find any articles on the net that talks about this keyboard, the only one in the world?


Commodore SX-64 USA (NTSC) – Repairing and Cleaning

April 5th, 2016 1 comment
Commodore SX-64 (USA)

A big disappointing this Commodore SX-64 USA purchased for spare parts to fix aesthetically one of my SX-64 PAL.

Why disappointing? because from the photo’s looked in a very bad shape, rust stains, various diseases and not working.

Conversely after removed the shit from the external case, replaced the booring PLA (906114), general cleaning + keyboard / Floppy Drive test and replaced one keyboard lock, the SX-64 is fully working and aesthetically in good condition.

Now i have for myself four SX-64 where the fourth is NTSC/USA, but honestly i was not looking for the USA version.

I am really unlucky :D

Gallery of the cleaning and repairing:

Australian Commodore 64 (replacement case for the C64)

February 16th, 2016 4 comments
Commodore 64 Australian (Original Color - not Photoshopped)

The Commodore 64 Australian is an replacement case for the C64.

It’s an C64c look-a-like and was sold in Australia. This replacement case came on the market when Commodore introduced it’s new model, the C64C.


Commodore 64c Embossed Label

January 4th, 2016 No comments
Commodore 64c Embossed Label

This is the latest version of C64c and was cost reduced even more.

Instead of a metal plate on the top there is the logo only engarved in plastic case itself.

The keyboard has been held on the upper housing part with brackets (not with screws as normal). In addition, the housing itself was only held together with clamps.



Commodore SX-64 Keyboard Fixed

May 29th, 2014 No comments
Commodore SX64 Keyboard Fixed


Commodore SX64 Keyboard Fixed.


  • Some keys works and some not.

Work done:

  • Cleaning with a “Contact Cleaner” to remove the oxidation of gold contacts under the membrane.
  • Cleaning all keys.
  • Cleaning the keyboard case (inside/outside).

Commodore SX64 (USA/NTSC) Repair

May 27th, 2014 No comments
Testing Game


Commodore SX64 (USA/NTSC) Repair.


  • Black screen and then noise of a misaligned drive (don’t read anything).

Replaced parts:

  • Replaced 1 x 906114 PLA (UE4)

Other things:

  • Aligned the Floppy Drive using the original copy of the Free Spirit Software Drive Alignment.
  • Removed the broken switch to disable the write protection and disconnected a LED on the front side of the SX64.
  • Connected the sensor wires cut.
  • Cleaning the Floppy Drive.

Commodore 64 Shiny Blue

May 15th, 2014 1 comment


Commodore 64 Shiny Blue (Professional Painting). Many thanks to my friend Damiano Colombari (Manosoft)

Commodore 64 ASSY 250407 Empty PCB

May 3rd, 2014 3 comments
Commodore 64 ASSY 251137 Empty PCB


Commodore 64 ASSY 250407 Empty PCB + some Working components.

Commodore 64 ASSY 250425 Empty PCB

April 24th, 2014 1 comment
Commodore 64 ASSY 250425 Empty PCB


Commodore 64 ASSY 250425 Empty PCB + some Working components.

Commodore 64 Silver (USA – ASSY 326298 – PET style Keyboard)

March 7th, 2014 7 comments

Most people will remember the Commodore 64 as the classic breadox with the rainbow label (logo). However, when Commodore released the first C64s, they didn’t have this label (logo), but had a silver logo with the text “Commodore” and a silver “64″ next to the power LED.

The keyboard of this C64 Silver is pretty rare and is absolutely identical in the shape to that of Commodore’s PET computer (however, on the Commodore 64 side the PET’s number pad was replaced by four wide function keys, the remaining holes are covered with tape).

The motherboard used is the the original Rev.A ASSY 3262980 with the Video Chip (VIC II) ceramic and has also a 5-pin video connector instead of the 8-pin connector that later boards had. It means there’s not separate chroma signal available in a 5-pin video connector. In other words: no S-Video, only composite available via the video port.

The Commodore 64, commonly called C64, C=64 (after the graphic logo on the case), occasionally CBM 64 (for Commodore Business Machines), or VIC-64, is an 8-bit home computer introduced in January 1982 by Commodore International.

Due to changes in the computing industry since its release, people claim it’s the highest selling computer of all time. This claim is disputed, because various changes were made to the “Commodore 64″, making the CP/M plug in cartridge incompatible with all but some 1982 production models, as well as the computer being revamped and placed into a new case, then its name changed to Commodore 64C, indicating that there were at least 3 different models in this range of computers.

Volume production started in early 1982, with machines being released on to the market in August at a price of US$ 595.[7][8] Preceded by the Commodore VIC-20 and Commodore PET, the C64 took its name from its 64 kilobytes (65,536 bytes) of RAM, and had favorable sound and graphical specifications when compared to contemporary systems such as the Apple II, at a price that was well below the circa US$1200 demanded by Apple, but the same couldn’t be said of the Tandy Color Computer, which was initially priced at $399.

source: wikipedia

I couldn’t not take 2 x C64 at a good price for spare parts.

January 7th, 2014 No comments
I couldn't not take two C64 at a good price for spare parts.

Payed €12,50 a piece, that is the right price.

Practically, the price of a good pizza and a glass of water ;-D

Commodore 64 in bad state (not working) for Spare Parts

May 13th, 2013 1 comment
Commodore 64 in bad state (not working) for Spare Parts

Some Commodore 64 in bad state (not working) for Spare Parts.

Commodore C64 Power Supply for REU 1764 Repaired

May 12th, 2013 No comments

This power supply for the REU 1764 is arrived for repair destroyed, the internal transformer was completely extirpated from the pcb.

Commodore SX-64 JiffyDos installation and keyboard repair

February 18th, 2013 1 comment

Kernel JiffyDos Installation and Keyboard Repair for my friend Damiano ( To repair the keyboard you must clean the contacts very well on the pcb.