5:50 - So excited over getting that desired board revision that he's practically drooling

You gotta love it when a board revision number can make a grown man as happy as 5 year old on christmas morning. Thank Jan.

Funny how that C64 was sold in Canada, then repaired in the USA, returned to Canada, and then sent over to you to be repaired again and viewed by thousands of people. Most Commodore 64s don't lead such an exciting life!

+1 for PCBway, we use them almost exclusively at work and their quality is great

That’s the same year model of the Commodore 64 I used when I started to make music via MIDI. I had a sequencer running-usually struggling-as I pushed the Commodore to its limits with MIDI data driving the synths and drum machine and synchronizing to a cassette deck. I had the Commodore cassette, the 1571 disk drive and the 1802 monitor. Man, I learned a *lot* with that system! Thanks for the memories, Jan! 👍

That repair shop still exists, you can find it via Google Earth and Google Maps :). Pretty awesome to know that C64 has been there and now it’s in Germany. Call me old-fashioined but I find that kind of thing cool to realize :).

Congratulations for the ntsc, thank you both Jan and the kind person for the donation :)

Made my first PCBWay purchase and selected one of the Shared projects for the C64 ;) love it

Congratulations on the PCBWay sponsorship- they seem like a quality operation.

I think those metal shields also make great heat sinks and I have never needed to put heat sinks on any that had it! Just remember the thermal paste! So far every 466 I have received had a bad Sid with the exception of the working C64C I first bought which had no sockets. Thanks for a very much needed video. I look forward to more like it. For me, the first thing I do for troubleshooting is take out the Sid. Most of the time it is the SID or the Kernel. I had one that all the socketed chips were bad but everything else worked after replacing the socketed chips.

The prefix of a C64 serial number is the factory were it was made, and these are named after the geographical location. "CA" stands for California I believe. Further codes are: S - Santa Clara P - Pensylvania WGA - West Germany WGB - West Germany WGC - West Germany DA4 - West Germany DA5 - West Germany UKB - United Kingdom HK - Hong Kong HB5 - China CH - China AA3 - Japan AF - Japan

Another great system saved :D Ghost and Goblins music at the end brought back a lot of good memories.

I think you should replace the cartridge port when you future-proof it :)

Great channel. Makes really good in depth repair videos.

Ich habe eine halbe Tonne Expansion Port Connectors in der Garage liegen. Drunter has der AliExpress nicht geliefert. Ich werde Dir einen rüber schicken, wenn Du möchtest. Und den NTSC würde ich in keinem Fall umbauen. Das ist für die Forschung und die Sammlung doch viel interessanter. Ich habe auch einen 250466 mit 8521 CIA seit kurzem. Diagnostic 586220 zeigt U2 bad, aber auch den Interrupt. Das mag am Unterschied NTSC vs. Pal liegen.

Jan, the CA serial prefix is common to all USA made C64C machines. They did make some C64 breadbins in Canada (I’ve had a couple in my collection), but as far as I know all the C64C in Canada were just normal USA made C64C...

Inspector Beta is on the case, finding the culprit. Most interesting and entertaining, thank you very much!

My C64C looks the same externally and starts with a CA serial number as well. It was purchased when I lived in Illinois. I haven't opened it in years but need to soon to heatsink it and see what model motherboard is inside of it.

C64C with a Rev 466 board, the Kinder Surprise for Commodore geeks :) ... Nice vid as always, Jan!

Congrats for finally getting your desired Board. Really cool! And again a very entertaining video :-)

Another one saved! Very nice. I have a few Breadbins and of course some C128's and an SX-64, but never had a C64c in my collection. I still have my eye out for one, but I do not really need it...

Wish I kept my c64c, you have inspired me to get another! Love the old tech 🙂

I just bought the same one (my first c64 in general) with the same keyboard and board version.! The huge plain grounds are a pain to change the capacitors!(and the back plate). Atari 8bits are a bit easier to work with. I can't wait to make it work!

I need a C64C in my collection. I never liked the asthetics of it though but probably worth getting for collecting sake and to get a better image on the tv

Always nice to see a c64 repair video :) I was hoping you had to struggle a bit more then just replacing the sid chip though :P

Great video Jan, thank you!

From the 64C's that I have with the symbols on the side of the keys, the MB's are 250466 versions.

Have you tried those modern sid &pla replacements? I had a modern sid in a broken c64 breadbin, and that worked pretty good

Very cool. Congratz with the 250466. Some consider it the best of the motherboards. This is my 1986 C64 i got for christmas. It had also mixed cia, and r4ar sid. Also mine was bad. Sadly.

As an NTSC user I can say the only thing you miss out on with not having PAL is DEMOS. There are a few PAL only games but the vast majority of games from Europe, back in the day, were brought over to NTSC land and the opposite is true thanks to US Gold brining over NTSC games to PAL. It is very common for people that grew up in PAL territory to say there is "Much more Software in PAL territory". It used to be a very popular debate. If you are counting DEMOs then yes but games and productivity then no. Also if you do convert your NTSC machine to PAL in NTSC land make sure you have a monitor that supports PAL like a Sony PVM if you want a CRT. LCDs probably more so but it depends on the make/model. I am thankful to have a C64 reloaded configured as PAL for exclusive use with DEMOs as all my other software runs just fine on may regular NTSC machines. On my CRT PAL produces flicker, since it runs at 50hz. I will take a little less software to run and zero flicker any day.

My first computer was a C64c like it, thank you.

Btw i think adrian has a video for moding a C16 and switching between PAL and NTSC, idk if it could be done on a c64, could be a fun mod for this one I guess

enjoy your new toy. question.. is there anyway to make ntsc/pal selectable? it would be pretty cool to see a toggle switch so as not to lose any functionality what so ever.

I love your sing song voice when you say things like "and now I have one" and "oh the suspense". LOL.

Were the two parts of the key stem intact enough that you could glue them back together and have a usable spare? I have that revision of the C64c board, and it’s been giving me no end of diagnostic troubles ever since I started attempting to fix it last year. I’m going to have to contact Ray Carlsen for advice.

please Jan, don´t stop making c64 videos :-)

That is a great motherboard, my favorite also. Too bad about the SID, the 6581R4AR is considered the best by many, and their market value at least in Finland is ~50€. I was a bit uneasy with the way you handled it, since it is the king of SID chips. I'm sure you've heard this many times, but the SIDs are very sensitive chips. But, this one was already broken, so... That board sometimes does have the 8521 CIA chip in the U2 position. I can confirm that it will show as BAD with the diagnostics cart, even with the harness connected. Nothing to worry about.

Do you know if I can replace the LM340T5 that is currently on my C64c with a L7508CV ?

Please consider keeping it as NTSC for the timing, colour and aspect ratio. NTSC runs at a different speed, has a different aspect ratio and slightly different palette. I grew up and live in a PAL region, and only discovered these differences through emulation. So many games that I played as a kid felt a bit too ssslooow. Now I finally know why. They were NTSC games, designed to run on NTSC machines. So on our PAL C64's they really *were* running too slow! There are so many examples, you owe it to yourself to check what you (and all us PAL users) have been missing. Check out the opening speech in Impossible Mission. I always felt he spoke a little too slowly. And if turns of he did - on a PAL C64. I know he's supposed to sound evil, and the slow speech is for effect, but it just seemed almost unnaturally slow. Play it on your NTSC C64 and hear how it's supposed to sound. You'll also notice that the protagonist runs slightly faster, at a more narural speed. I always felt he seemed to be almost running in slow motion. I wondered if it was to show off the impressive animation . But, no. It turns out it was just caused by playing an NTSC game on a PAL C64. Also check out Summer Games. Same issue. Slow opening ceremonies. Slow national anthems. Slow running and movement, particularly evident in pole vaulting. And in NTSC, the speed is just right. Even the diver falls at a more natural speed. There is whole world of games out there to rediscover, and experience how they were mean to be played, and sound. The music is also too slow in PAL. So many of ours earliest C64 games were from NTSC land (some of them being ports from the Atari 8 bit computers). Fort Apocalypse, Pitstop, Pole Position, Jumpman, Super Cycle, and so many of the early arcade conversions were actually NTSC games. The list goes on. It would make a fascinating video. Now that you have an NTSC C64, please share it with us. I have yet to see anyone create such content. Americans wouldn't think to. And most of the rest of us don't have access to an NTSC C64. Now you do! :-D

Hello Jan, I would really like your input on a problem I have been having with my c64 assy 250425. I can boot normal, but when I insert a cartridge like Final Cartridge or KCS Power Cartridge I get a blank screen. Pressing reset on Power Cartridge gives the kcs menu. Same with Ultimate II+. Blank screen, but when pushing the middle button, normal menu. I am at my wits' end with this.. Any input is highly appreciated! gz from Holland :P

Very interesting revision motherboard! Don't forget the CIA will show as bad because you aren't using the loopback connectors! I am sure it will pass the test OK with those connected.

I would like to locate this exact same setup (250466 board and original keyboard layout). Some day. Is this the first time we've seen you use your 1541 Ultimate? I've seen it in the background plenty of times but I do not believe you have shown it on screen before.

Hi I am looking to buy a PSU for the commodore 64c shortboard, but I am in Australia and can not find an Australian distributor, hoping someone will see this and help. Thank you.

Hey Jan, cooles Video wie immer :) mal eine Frage.. Gibt es irgendwo aus Deutschland ein fertiges Cap Kit für den c64c assy 250469, 252311 Rev B? Bin Anfänger, habe mit den C auf ebay geschossen und würde den jetzt gerne Futureproofen :) Danke im voraus für alle Infos, mach weiter so geile informative Videos. Liebe Grüße aus Rheinland-Pfalz! Peter

C64C is Not just A Failure, But it is A great computer for gaming and do work.

A perfect example of sponsoring, I'm totally fine with... Hell, I might even check them out, if they continue sponsoring you long enough... ;D

How many have you had in your hands now? How many of those have you fixed? How many were unfixable?

Friday afternoon, workday over, Jan Beta video. = Smug!

What is your recommended voltage regulator did you use to replace the 7805 with? And what brands are you using? Seems to be a lot of options. Mark.

Thanks mate

AFAIK a shorted SID can affect anything on the 5V rail. But good restoration, I love the C aesthetic :)

"That's very nearly completely spot on." --Jan

Why is that white line still on the left of the screen? Any way to fix that?

As far as the NTSC to PAL change, why not use a small, low profile rocker switch? It looked like to me that if it were jumpered, it would be PAL only. If it were switchable, you'd still have a NTSC system in your collection that has your favorite mainboard. Just a suggestion...

Perfect video for breakfast :D. Guten Morgen zusammen.

A shorted SID that causes a black screen is somewhat uncommon, but it does happen occasionally. Normally the dead SIDs I find are just silent, or one or more of the filters are faulty. As I told you on Twitter, welcome to the 250466 club Jan! Are you going to convert it to PAL?

Was that a Cauldron loader screen at 17:58? Haven't seen that before.

Why is there a ferrite core on the power led wire?

PCB waaayyyyy ;-) ... stands for... ;-)

Jan, now load an NTSC version of Skate or Die and listen to the how the intro is suppose to sound. ;) ;)

My Canadian 64c has the same sticker. I would have thought there'd be French on it but nope.

Hi.. I suddenly get a black screen after more that 30 years :(... y check the power inside I measure the DC and AC that you say and one of this measeure fail for me. THe User port have got 1.7V DC (not 5V).. What can cause it? help me please

American C64s did not use Torx bits by default, so I'm guessing that the "sales and support" company "helpfully" replaced the screws as a deterrent from users servicing their own machines. And remember, PCB stands for: Perifractic's Camaraderie, Booyeah

If you have multiple 64's it's nice to keep one different. Keep it NTSC. That way you can play NTSC Games they way they were intented. Faster! Also, there are a lot of games that work on NTSC, even PAL ones. (NTSC fixed) Just have to spend a little time hunting them down. ;) CSdb has them.

Hey, my c64c (same model) had the same issue! Except i shorted the sid myself ;(

An NTSC machine very cool and workin' again, I've never seen the fact that the SID could stop a whole board from workin' right. Ich weiß, dass ein PAL-Gerät am Ende besser passt, aber ich habe mich etwas gefragt. Sie haben versucht, ich denke, ein Spiel darauf, haben Sie andere Commodore-Spiele, die NTSC sind, oder haben Sie das bekommen, um auf eine andere Weise zu spielen?

I have a question. Does the ntsc machine run slower on European power? I know in United States they use 60 hz. In Europe a lot of countries use 50 hz.

Retro recepis PCBWAYYYYYY hehe nice

If the original seller was Sascoa, then they're still going, just moved 10 units down, looking on Google maps. (as of 2017)

Sascoa Electronics is still in business in pretty much the same place.

You camped at the respawning spot of the compressed air can - clever! (05:41)

12:46 no shorts i do believe Jan's correct as those look like cut off jeans🤣🤣

As we all know, PCB stands for: Perfect Commodore Board.

Did not release you have Ultimate Plus You should do a Video on it 25:52

hi do a lot of re pair work the big thing no body talks about where do you put all the gear us fixers put after they are done with them i stopped fixing gear as i was running out of room lucky theres no lady i my life re word that i do have a lady cat do love you video's

I found this page "c64preservation.com/registry" . The indicate the CA prefix is the assembly line in the USA producing C64Cs.

So what makes this revision so desirable?

64C mit 6581 das Ding hat echten Seltenheitswert!

Also a win for your brother on Wednesday against Chelsea...Herr Klopp's bruder.

😀😎

nooo keep it original! Leave the shield in place also...please!

kzfaq.info/get/bejne/i9OdYNqLxL29h6c.html Hallo, habe folgendes Problem: Habe heute das C64 Diagnostic Modul REV 586220 bekommen. Bei all meinen C64 Computern werden vom Modul die gleichen Fehler gemeldet: U1 BAD, U2 BAD, U18 BAD, Cassette BAD, Keyboard open bzw. BAD, Control Port BAD, Serial Port BAD, User Port BAD und Interrupt BAD. Wie kann das sein? Würde mich über jede Antwort freuen. Danke. Hier der Link zum Video des beschriebenen Problems: kzfaq.info/get/bejne/i9OdYNqLxL29h6c.html

I have 2 Commodore 64 bread box computers. Neither work - any repair people out there?

hey Jan uploaded a new video, push the like button and lets go watch the video.

Attemped repair by unauthorized persons voids warranty... WC Made in USA.. WC?

I would have thought Canadian C64s come with robertson screws :-)

das war ja einfach....

"You cannot have too many C64s". Well, tell me to my wife, she thinks I have waaay too many ;-P

Next video.. NTSC to PAL conversion so it's usable :)