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This C64 Mod Makes a Fantastic Tool for Testing Chips
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- čas přidán 13. 08. 2024
- Lets take some old Commodore 64 parts and make a ZIF 64 diagnostic tool! Then we can test some of the old Commodore chips I have from the Stone Collection.
PATRONS
C64
Joseph Naberhaus
Geek With Social Skills
VIC-20
Doug Johnson
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CONTENTS
00:00 64 Commodore 64s - I'm going to need help!
00:40 What is a ZIF Socket and ZIF-64?
01:01 Getting the bits together
03:00 Building the ZIF-64
06:12 Diagnosing the old C64 Board
11:00 Testing some old Commodore Chips
ABOUT RAVENWOLF RETRO TECH
RavenWolf Retro Tech brings you new vintage tech videos regularly. We currently have about half a dozen videos in various states of completion, including Amiga 2000 and 4000 restorations, A Pet-4032 in desperate need of a full restoration, an IBM 5150 for DOScember, an SX-64, and much more!
At RavenWolf Retro Tech we restore and explore vintage technology from Back in the Day!
Now that we are moved into the new shop, the frequency of videos is increasing. I’ll keep putting out videos as I can, but I promise to focus on higher quality videos that don’t waste your time over frequent, low effort projects.
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#Commodore #Commodore64 #Retro
Nice idea! Oh wow! What a collection you got now of C64!
That's nuts! Jam in all new ceramics too. They are dirt cheap in bulk.
This is a great video, i always wanted to prepare one of mine this way for testing purposes but i always forget or postpone.! It is truly amazing how much easier things can be using zifs to narrow down the problematic chips - thanks for sharing!
Thanks for the Cyberhug! I also put it off for about 2 years. I then put off putting a RAM chip in a ZIF so I won't be encourage to keep putting off assembling the Retro Chip Tester Pro!
Sweet! Nice work bud. I enjoy watching c64 videos. I have been repairing and collecting for a couple years now.. since crazy covid. Lol. I'm going to build myself one of these over the winter:) thanks for the inspiring video
Thanks for that Donald! Let me know how it goes!
I've had the parts for a ZIF 407 board for so long I completely forgot about it but this Video was great and reminded me about that long lost Project. Although I do also have 2 parts boards that I might do the same as you did and save time by not having to remove so many chips! -Mark.
Sounds Great Mark! My favorite part of the build was that a good C64 was not sacrificed. Everything came from machines that were parted out in the 90s so I have no guilt 😎
Nice video. Holy smokes you have a lot of c64s to test. I have not used the BackSID although I do have one, I prefer the ARMSID. One thing I can recommend is the BackBit Chip tester Pro. This thing tests a lot of the custom chips. CIAs, SIDs, 6510, VIC, PLA, etc. Also Atari and Amiga chips, and many, many others. It can also test, identify and dump most any Commodore and other ROMs. Looking forward to seeing your progress on that awesome collection.
Thanks Racer X! I have to confess that the reason I have a BackSID kicking about is that I hate the way it sounds. For testing I have a Retro Chip Tester pro that I need to assemble and figure out how to program.
@@RavenWolfRetroTech Sounds familiar haha as I finally finished my Retro Chip Tester Pro and got it programmed and it is awesome. I used the Pololu Programmer that you can get cheaply in the USA from their website. At first I had trouble because the instructions in the RCT manual for that particular programmer are not what worked. I figured it out and sent the designer of the RCT the exact steps and he said he would update the manual. But if you end up using that programmer feel free to message me and I can send you the step by step. I just updated mine to the recently released version and it is an awesome device. The BackBit one has the advantage of the custom chips but I do use the RCT for most everything else, DRAMS, etc.
I'll keep that in mind. I am not certain if I have a compatible programmer. If not I will look at that one!
I've had mixed results with clone Textool sockets. Some are actually quite good, and while I haven't encountered a really bad one yet I've seen some bad ones. My Sager G540 programmer actually has the real thing on it.
They seem OK once soldered in but the flimsy pins shipped from china in a box with zero packaging was a bit of a disaster. Fortunately there are better options now on Digi-Key. I bought these earlier, during the pandemic when I was getting parts for the Retro Chip Tester Pro.
Who's diagnostic harness do you use? I've build a few of Sven Peterson's design, but haven't seen a wireless one like yours. Thanks!
I got it from another Bill -- Bill Pelton off of FaceBook. Its handy and tests everything except Joystick inputs (It does test the paddles though)
Excellent work! Not sure if you put ziff sockets for the ROMs and a RAM chip. I made mine a few years ago and it's a great diagnostic tool to have. Thanks for sharing
Hey Rudy! I was originally planning on doing that but then I realized I would just be enabling my procrastination on the Retro Chip Tester Pro that I have been putting off. It seems like a more reliable way to test RAM and ROM. Also my ZIF sockets are too large so I would only be able to fit the KERNAL ROM without some kind of Riser.
@RavenWolf Retro Tech I used the large ziff sockets for the ROMs then put electrical tape over the extra pins so that the ROMs fit properly. I too have that tester pro but still have to oder all the parts to build it. I test my RAM ROMs, CPU, PLA etc. With the BackBit Tester Pro. It's a fantastic diagnostic tool and she keeps adding ROMs and other chip daily. You should have a look
Wow, I took a look and it looks fantastic. Hopefully my budget will loosen up soon so I can take a look at one. I like the variety of ICs that it can test like PLAs
Don't throw away custom chips that mostly work. Maybe some day for someone, having a chip that poorly works is the only alternative to having a completely dead system. (just make sure to mark them as marginal)
Hey senilyDeluxe! Great minds think alike, they are all together in a marginal parts box!