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      • Assy 250407 Rev. B
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  • C64 Repair Logs
    • Commodore 64
      • Assy 250407 Rev. B #1
      • Assy 250407 Rev. B #2
      • Assy 250407 Rev. B #3
      • Assy 250407 Rev. B #4
      • Assy 250407 Rev. C #1
      • Assy 250425 Rev. A #1
      • Assy 250425 Rev. A #2
      • Assy 250425 Rev. A #3
      • Assy 250425 Rev. A #4
      • Assy 250425 Rev. B #1
    • Commodore 64C
      • Assy 250469 Rev. 3 #1
      • Assy 250469 Rev. 3 #2
      • Assy 250469 Rev. 4 #1
      • Assy 250469 Rev. 4 #2
      • Assy 250469 Rev. 4 #3
      • Assy 250469 Rev. 4 #4
      • Assy 250469 Rev. A #1
      • Assy 250469 Rev. A #2
  • MechBoard64
    • New C64 Keyboards
    • Keyboard Prototype
    • The MechBoard64
    • Pimp My MechBoard64
    • Quest for New Keycaps
    • DIY MechBoard64
    • MechBoard64 Blue Mod
    • MechBoard64 Light Mod
    • Assembly Instructions

C64 Breadbox

These posts are the heart of breadbox64.com. It does not get better than this – enjoy!

SA family keycaps versus Commodore 64 keycaps. SIgnature Plastics. breadbox64.com.

Pimp My MechBoard64

September 19, 2019November 10, 2018 by MtnBuffalo

Getting a brand spanking new Commodore 64 is no longer just a wet dream for a retro geek like me. With the new Pixelwizard cases (link), new motherboards (link, link) and new keyboards (link) the dream is certainly within reach. However, I still need new … Read more

Categories C64 Breadbox, C64 C, C64 Hardware, C64 Mods, C64 Reloaded
The MechBoard64. Cherry Locking switch. Mechanical keyboard. breadbox64.com

The MechBoard64

September 1, 2021July 29, 2018 by MtnBuffalo

It’s finally time to show what has been clutting up my workbench for way too long! Back in 2015 I got my hands on two C64 Reloaded boards (link) and installed them inside cases from the Kickstarter campaign (link). I also entered the Phase5 Indiegogo … Read more

Categories C64 Breadbox, C64 C, C64 Hardware, C64 Mods, C64 Peripherals, C64 Reloaded
The PLAdvanced+ PLA replacement chip for the commodore 64. review on breadbox64.com

The PLAdvanced+

June 25, 2018 by MtnBuffalo

This may come as a shock to some, but the sad news is that the old chips inside a Commodore 64 will eventually fail!! Most often the chips will simply die due to old age or other external factors like a faulty power supply. When … Read more

Categories C64 Breadbox, C64 Hardware, C64 Mods, C64 Reloaded, C64 Repairs
xu1541 device test on breadbox64.com

Floppy Backup

April 8, 2018April 7, 2018 by MtnBuffalo

Are Data Back-ups for Sissies? Some of us still have heaps of old 5.25″ floppies laying around. It is well known that data stored on this type of media is not the safest place to keep it. While most of the data can quite easily … Read more

Categories C64 Breadbox, C64 Hardware, C64 Mods, C64 Peripherals
New Commodore 64 keyboards. breadbox64.com

C64 Keyboard Prototype

March 29, 2021March 16, 2018 by MtnBuffalo

It has been almost two years since I boldly announced that I would make new keyboards (link) for my C64 Reloaded boards (link). I have now realized that making new keyboards is by far the biggest Commodore 64 project that I have ever gotten myself … Read more

Categories C64 Breadbox, C64 C, C64 Hardware, C64 Mods, C64 Peripherals, C64 Reloaded

Green Short Boards

January 18, 2019September 18, 2017 by MtnBuffalo

…and a yellow longboard have been added to my collection of Commodore 64 motherboards. The yellow Assy 250425 Revision B longboard is in really great shape. It has a MOS 8500 MPU which is quite unusual for the long boards. Normally they have MOS 6510 … Read more

Categories C64 Breadbox, C64 C, C64 Hardware

More C64 Repair Logs

August 29, 2017August 23, 2017 by MtnBuffalo

During the last couple of weeks I’ve received 8 (!) broken Commodore 64 machines that were in need of repair. The repair logs of three of them have already been described here (link), while the latter five had issues ranging from faulty Serial Ports (link, link, link), … Read more

Categories C64 Breadbox, C64 Hardware, C64 Repairs
Commodore 64 blacj screen fix using third party PLA chip. Read the review on breadbox64.com

A Plethora of PLAs

July 5, 2018December 19, 2016 by MtnBuffalo

The most common cause of a black screen on the old Commodore 64 long boards (link) is a broken Programmed Logic Array (PLA) chip located at position U17. Based on different input signals, the PLA creates chip select signals and controls which chip is to … Read more

Categories C64 Breadbox, C64 Hardware, C64 Mods, C64 Repairs
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