Dr. Daves Diversions | Fixing Commodore 64 problems I didn't know I had @DrDavesDiversions | Uploaded April 2021 | Updated October 2024, 6 minutes ago.
In this video I tell you about three problems that I solved with the help of the YouTube community. They were all problems that my Commodore 64 has had since 1983! I just didn't know it until I learned more from the retrocomputing community.
Specifically, I fix a "wavy" character problem, where a horizontal line moves up and down through some C64 characters in some screen positions and refer you to earlier videos about two other problems (missing heat sinks on early C64s and a non-working RESTORE key.)
00:00 Intro
02:35 demonstrating the "wavy" character problem
03:05 the new character ROM (DIP) from eBay
03:40 C64 breadbin disassembly
06:10 installing the replacement ROM
06:40 C64 reassembly and Pennsylvania-manufactured serial number on case
07:38 testing the replacement ROM
07:55 comments about (a) voltage regulator heat problems and (b) problems with the RESTORE key
10:35 What's next?
Related:
2021 C64 Repair-a-thon #2: "Hmm, the mystery deepens!"
youtube.com/watch?v=qd9cvRls4to&t=46s (46s)
The Silicon Underground:
How to open and reassemble a Commodore 64 or VIC-20 without breaking tabs
dfarq.homeip.net/how-to-open-a-commodore-64-or-vic-20
TheRetroChannel: Commodore 64 troubleshooting part 1 - the basics
youtube.com/watch?v=sUyRKXOl-PI
From the first BASIC to Casio fx-4000P calculator!
youtube.com/watch?v=jsg6Xgev7CU
Electroware C64 PSU heavy-duty mod (30W DC power)
youtube.com/watch?v=daE0QzkroB8
Be cool, Honey Bunny: Customized C64 Heatsinks
youtube.com/watch?v=F5tjHWYBYx8&t=4m21s (4m21s)
Hearsay 1000 voice synthesis and recognition for the C64
youtube.com/watch?v=CiSUfmSEXAA&t=8m40s (8m40s)
Restoring the Commodore 64 Restore key - a quick and easy mod
(Mark from youtube.com/c/TheRetroChannel)
youtube.com/watch?v=GHhhidIybzU
Restoring a C64 PCB 326295 Rev A. The first C64 PCB revision.
(iz8dwf - Frank)
youtube.com/watch?v=IVvI998PWGE&t=3m45s (3m45s and 11m15s)
Channels:
Adrian's Digital Basement youtube.com/c/adriansdigitalbasement
TheRetroChannel (Mark) youtube.com/c/TheRetroChannel
iz8wdf (Frank) youtube.com/c/iz8dwf
In this video I tell you about three problems that I solved with the help of the YouTube community. They were all problems that my Commodore 64 has had since 1983! I just didn't know it until I learned more from the retrocomputing community.
Specifically, I fix a "wavy" character problem, where a horizontal line moves up and down through some C64 characters in some screen positions and refer you to earlier videos about two other problems (missing heat sinks on early C64s and a non-working RESTORE key.)
00:00 Intro
02:35 demonstrating the "wavy" character problem
03:05 the new character ROM (DIP) from eBay
03:40 C64 breadbin disassembly
06:10 installing the replacement ROM
06:40 C64 reassembly and Pennsylvania-manufactured serial number on case
07:38 testing the replacement ROM
07:55 comments about (a) voltage regulator heat problems and (b) problems with the RESTORE key
10:35 What's next?
Related:
2021 C64 Repair-a-thon #2: "Hmm, the mystery deepens!"
youtube.com/watch?v=qd9cvRls4to&t=46s (46s)
The Silicon Underground:
How to open and reassemble a Commodore 64 or VIC-20 without breaking tabs
dfarq.homeip.net/how-to-open-a-commodore-64-or-vic-20
TheRetroChannel: Commodore 64 troubleshooting part 1 - the basics
youtube.com/watch?v=sUyRKXOl-PI
From the first BASIC to Casio fx-4000P calculator!
youtube.com/watch?v=jsg6Xgev7CU
Electroware C64 PSU heavy-duty mod (30W DC power)
youtube.com/watch?v=daE0QzkroB8
Be cool, Honey Bunny: Customized C64 Heatsinks
youtube.com/watch?v=F5tjHWYBYx8&t=4m21s (4m21s)
Hearsay 1000 voice synthesis and recognition for the C64
youtube.com/watch?v=CiSUfmSEXAA&t=8m40s (8m40s)
Restoring the Commodore 64 Restore key - a quick and easy mod
(Mark from youtube.com/c/TheRetroChannel)
youtube.com/watch?v=GHhhidIybzU
Restoring a C64 PCB 326295 Rev A. The first C64 PCB revision.
(iz8dwf - Frank)
youtube.com/watch?v=IVvI998PWGE&t=3m45s (3m45s and 11m15s)
Channels:
Adrian's Digital Basement youtube.com/c/adriansdigitalbasement
TheRetroChannel (Mark) youtube.com/c/TheRetroChannel
iz8wdf (Frank) youtube.com/c/iz8dwf
