Uploaded April 2025 | Updated September 2026, 2 weeks ago
In this video I am going to install a Lumacode video mod into a Commodore C64 and connect it to an OSSC (Open Source Scan Converter) to get clearer video output on the C64. Due to the use of the Line5x mode on the OSSC, the video mode produced can't be captured by either my AverMedia Line Gamer Mini, or an Elgato HD 60 S, so all footage seen is captured on camera.
You will need firmware v1.xx to use LumaCode on the OSSC. To upgrade from v0.xx firmware then you need to perform a hardware modification to the OSSC. I have made a video on how to do this already youtu.be/y1IgYZuDBRs
LumaCode Links:
LumaCode: github.com/c0pperdragon/LumaCode/wiki
LumaCode C64: github.com/c0pperdragon/LumaCode/wiki/VIC-II-dizer-(for-the-C64-computer)
Crystal Clear HDMI For The Commodore 64 In 60 Seconds | Retro Hack Shack: youtu.be/SBgo8oGFung?si=FmN0Re5zbZJKIqdw
New C64 solderless HDMI mod - LumaCode VIC-II-dizer | TheRetroChannel: youtu.be/eSGsCfHwHCA?si=9HSBTGAL6d-MQouT
OSSC Links:
OSSC (Open Source Scan Converter): junkerhq.net/xrgb/index.php/OSSC
How to Mod The OSSC for firmware v.1 and above - videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware
Lumacode on the OSSC - HDMI from the C64 and 128 without the RGBtoHDMI and audio embedders | TheRetroChannel: youtube.com/watch?v=6ZZGEm12jUI&t=903s
OSSC Wiki - junkerhq.net/xrgb/index.php/OSSC
Problems with Line5x and Capture Device: retrorgb.com/capture-card-testing-with-the-ossc-and-mister.html
About The C64 Links:
C64 Lines Etc: zimmers.net/cbmpics/cbm/c64/vic-ii.txt (see The dimensions of the video display for the different VIC types are as
follows:)
About the 504 PAL sample rate: retrocomputing.stackexchange.com/questions/7128/visible-resolution-of-c64-video-output-including-borders
Music Links:
'Zander Movie Main Titles (2025 Remake)' by Chris Huelsbeck, used under a royalty-free license, please visit patreon.com/chris_huelsbeck for more info!
Chapters:
0:00 LumaCode C64 Mod
2:18 Dissasembly
6:05 Capacitor Problems
8:55 VIC-II Socket Problems
10:40 Installing the LumaCode Board
12:00 Boot Test Old Video Output
13:40 Opening the RF Modulator
14:50 Wiring the LumaCode in
16:20 LumaCode Test
17:15 OSSC Settings
22:20 Testing The Output
24:06 Soldering The LumaCode Wires
27:10 Reassembly
27:30 Final Testing
In this video I am going to install a Lumacode video mod into a Commodore C64 and connect it to an OSSC (Open Source Scan Converter) to get clearer video output on the C64. Due to the use of the Line5x mode on the OSSC, the video mode produced can't be captured by either my AverMedia Line Gamer Mini, or an Elgato HD 60 S, so all footage seen is captured on camera.
You will need firmware v1.xx to use LumaCode on the OSSC. To upgrade from v0.xx firmware then you need to perform a hardware modification to the OSSC. I have made a video on how to do this already youtu.be/y1IgYZuDBRs
LumaCode Links:
LumaCode: github.com/c0pperdragon/LumaCode/wiki
LumaCode C64: github.com/c0pperdragon/LumaCode/wiki/VIC-II-dizer-(for-the-C64-computer)
Crystal Clear HDMI For The Commodore 64 In 60 Seconds | Retro Hack Shack: youtu.be/SBgo8oGFung?si=FmN0Re5zbZJKIqdw
New C64 solderless HDMI mod - LumaCode VIC-II-dizer | TheRetroChannel: youtu.be/eSGsCfHwHCA?si=9HSBTGAL6d-MQouT
OSSC Links:
OSSC (Open Source Scan Converter): junkerhq.net/xrgb/index.php/OSSC
How to Mod The OSSC for firmware v.1 and above - videogameperfection.com/forums/topic/ossc-v1-xx-series-beta-firmware
Lumacode on the OSSC - HDMI from the C64 and 128 without the RGBtoHDMI and audio embedders | TheRetroChannel: youtube.com/watch?v=6ZZGEm12jUI&t=903s
OSSC Wiki - junkerhq.net/xrgb/index.php/OSSC
Problems with Line5x and Capture Device: retrorgb.com/capture-card-testing-with-the-ossc-and-mister.html
About The C64 Links:
C64 Lines Etc: zimmers.net/cbmpics/cbm/c64/vic-ii.txt (see The dimensions of the video display for the different VIC types are as
follows:)
About the 504 PAL sample rate: retrocomputing.stackexchange.com/questions/7128/visible-resolution-of-c64-video-output-including-borders
Music Links:
'Zander Movie Main Titles (2025 Remake)' by Chris Huelsbeck, used under a royalty-free license, please visit patreon.com/chris_huelsbeck for more info!
Chapters:
0:00 LumaCode C64 Mod
2:18 Dissasembly
6:05 Capacitor Problems
8:55 VIC-II Socket Problems
10:40 Installing the LumaCode Board
12:00 Boot Test Old Video Output
13:40 Opening the RF Modulator
14:50 Wiring the LumaCode in
16:20 LumaCode Test
17:15 OSSC Settings
22:20 Testing The Output
24:06 Soldering The LumaCode Wires
27:10 Reassembly
27:30 Final Testing
