The Handheld C64 Part II - Will it work? ... or The Quest For The Blue Screen

Watch Part I here: https://youtu.be/JuzKcnp3jGY

In this video I will almost finish the build of a Gameboy-Style C64 with boards provided by Matthias Lorenz (www.uni64.com) and donor parts of a real C64 II. So this is a real C64 in a Gameboy form factor.

We cover:

- How to check voltages on a C64 board
- How to check clock-speeds on a C64 board
- Hot to burn an Eprom and how Eproms work
- How to NOT desolder components from doner boards

Download a free Hex-Editor to create the Eprom here: https://mh-nexus.de/en/hxd/

… and the ROMS here:

Basic ROM: http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/basic.901226-01.bin
Kernel ROM: http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/kernal.901227-03.bin
Character ROM: http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/characters.901225-01.bin


The boards, BOMS and some more Infos can be found here: https://www.uni64.com/c/pcb-platinen/handheld64

The screen Matthias has used in his build and I planed but will not use for mine:
https://de.aliexpress.com/item/1005001600487891.html?spm=a2g0s.9042311.0.0.6ecc4c4dualQhn

Step-Up/Down converters can be found on Amazon: https://www.amazon.de/gp/product/B071H9NRTW (Step-Up)
or here: https://www.pololu.com/product/4082 (Step-Down)

You will also need a donor C64 II for the custom chips needed or have these available separately.

The socket for the PLA and the 2114 RAM can be found here:

https://retro8bitshop.com/product-category/hardware/spare_parts/

Expansion port: https://www.polyplay.xyz/Expansionsport-Buchse-C64-abgewinkelt
8701 Timer chip: https://www.polyplay.xyz/MOS-8701

All the other parts I ordered from Reichelt.de or eBay (Mikro-Switch-Keys, Eeprom (AT28C256).


Visit my store for cool merchandise like T-Shirts, Cups etc.: https://retro-is-the-new-black.creator-spring.com/

RETRO is the new black is a retro channel for retro enthusiasts. The channel features retro computers, game consoles and gadgets from the 1970, 1980 and 1990s as well as new tech for old machines. The videos range from simple unboxing to repairs and sometimes even the creation of new things.

I try to upload two videos a week (one smaller QUICK SHOT video and one longer main Video).

Some machines featured in my (upcoming) videos are: Commodore PET, Commodore C64, Commodore VIC 20 (VC20), Atari 800XL, Commodore Amiga, Atari ST, Amstrad (Schneider) CPC, IBM PCs, Apple IIe, Apple Macintosh, Amiga 3000, Amiga 2000 and many more.

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If you have any questions or want to contact me, please refer to my website at: wolfgang@wolfgangkierdorf.de.

This channel is hosted by Wolfgang Kierdorf. I am a retro enthusiast from Cologne in Germany. My retro videos are in english. If you are from a different county or need a different language, please check if subtitles are available.

Thanks for watching!