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Commodore 64 Blue Screen of Death? - How I Restore a C=64 Pt 2
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- čas přidán 14. 10. 2023
- This Commodore 64 has some serious issues. Today we'll finish looking at this messed up machine and I will cover the typical steps I take when I restore a machine.
We all know that these old computers did it better!
MENTIONED IN THIS VIDEO
Sam's Facts C=64 on archive.org
archive.org/de...
Ray Carlson
www.portcommod...
Soldering Station
geni.us/Weller
Alternate Soldering Station
geni.us/Hakko
Budget Soldering Iron
geni.us/RWRT_B...
Bill Pelton on Facebook for Diagnostic Harness
/ 306941421943778
EasyFlash 3 at Retro Innovations
geni.us/EasyFl...
EEV Blog Meter that I use
geni.us/RWRT_E...
Decent looking budget meter
geni.us/RWRT_B...
RetroTINK 2x Pro
geni.us/RWRT_R...
Detail Brush Kit
geni.us/RWRT_D...
Anti-Static Brush Assortment
geni.us/RWRT_S...
Anti-Static Flux Brushes
geni.us/RWRT_A...
Solder Sucker
geni.us/RWRT_S...
Flux
geni.us/RWRT_Flux
Solder
geni.us/RWRT_S...
PATRON COMMUNITY
Amiga 1000
Brian Mathews
C128
Joseph Naberhaus
Qingyao Sun
C64
Geek With Social Skills
renaak
Trent Waddington
Patrick M Brennan
Andrew Seeger
Kevin Trudeau
Scott Hollibaugh
Smitty Nash
VIC-20
Doug Johnson, Lloyd Davies, KO4NXK, Steven M Payeur, David Cohn, Christian Dunn, David LeCompte, Omer Golen-Joel
Pet
Shaun Parry, Adam Haase, Zach Mussett, CapnZardwark, Florian Rohrweck, Sean Murphy, Tim Gregory, Adam Augusta, EgonOlsen, Stefan Stammler
ABOUT RAVENWOLF RETRO TECH
RavenWolf Retro Tech brings you new vintage tech videos regularly. We love to restore and explore vintage technology and are also working on completing an assembly language RPG that I started making on the C64 in 1984.
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.
MY FAVORITE TOOLS
Weller WE1010NA soldering station - I like the classic look
geni.us/Weller
Hakko FX888D Soldering Station - A slight performance boost but not so sexy
geni.us/Hakko
Auto Wire Strippers
geni.us/AutoSt...
Siglent SDS1104X-E Oscilloscope
geni.us/Siglen...
EEVblog Brymen BM235 Multimeter
geni.us/RWRT_E...
Deoxit D5
geni.us/DeoxIT_D5
FOLLOW ME
Twitter: @RavenWolfTech
SUBSCRIBE
/ @ravenwolfretrotech
CHANNEL SUPPORT
You can support the channel via Patreon or PayPal if you wish.
Patreon: patreon.com/us...
Check the about tab for an email address for PayPal or to contact me regarding item donations.
Currently all support will go to tools and parts for restoration. If there is more support than that then it will go toward health insurance!
AFFILIATE LINKS
Some links in this description are affiliate links. You pay nothing extra, and I make a small commission.
Copyright 2023, RavenWolf Productions
#retrotech #commodore #retrogaming
This was a very interesting repair. Did you see anything I should have done different?
I was so close. I thought it was going to be the 74 LS629. Nice job!!
I did too until replacing it didn't fix the problem 😂
You make great videos on this stuff!
Thank you! I really appreciate that!
What a pain and journey, but you got it all fixed. Excellent job! Thanks for sharing
Thanks Rudy! After the keyboard vid a certain Pet is next (All while also working on DDM - #TooManyProjects")
Nice repair. Bummer it took so many chips. CIAs are going to be the next big need in the C64 space since they seem to be dying. I have replaced at least a half dozen in the past 2 years. There is a new CIA replacement, the JCIA but it is currently pretty expensive and not always in stock. I think if Jim Drew finishes his version of the CIA replacement, his might be more affordable.
That would be amazing RacerX, I looked into the J-CIA and they are a whopping $42 each. The nice thing is that they are buffered to protect from static discharges.
It freaking works! Lol very nice troubleshooting. I have never seen that before, chip being bad in the vicII box. Crazy. I knew u would get it:) nice work
Thanks Donald! Did I actually say that? I admit it's hard to not repeat things we have heard so many times!
Lol. No you didn't say that. I said it when I watched video and had to say it to you:) I get that excited every time I repair one. Especially the stubborn mind boggling ones:)
Long heat-sinks increase the capacity to absorb heat. They are more efficient in removing heat from the ICs hot spot.
True but the difference in die temperature is going to be miniscule. But, like I said feel free if you want to do it that way, there is absolutely nothing wrong with that. If you do want longer sinks then DON'T use 3 smaller ones as I have seen people do. The heat is coming from the center so you need a single piece of metal. For that matter using a slightly oversized square heat sink should be better than a long one.
When using the Diagnostic program the two timers at the bottom of the screen are the timers in CIA 1 and CIA 2 and they should both count/read the same at all times. When you ran the diagnostic, the timer for the CIA 2 had random characters. Most of the fun is in the hunting down of the fix no matter how bad a machine is, the more fixes it needs just makes it more rewarding at the end (not monetarily but in knowledge gained). Keep them out of the trash or they will become rare.
That's why I was thinking U1 was OK and only U2 was bad. Sadly they were both trash AGAIN! These school machines got a lot of abuse!
@@RavenWolfRetroTech Is your power supply bad? Or do you suffer from static on your bench? Can't keep going through CIAs like that, you have to leave some for the rest of us.🤣
PSU is good and has a Ray Carlson C64 saver on it. The bench is covered with an anti-static Matt. These machines came out of the local school district in the early 90s when they failed and then were stored in a shed for 30 years. I have also been focusing on some of the uglier ones so maybe its time to restore some nice looking machines.
hello host fully watch here with two ads, impressive content.
Very nice. Where are you going to be selling your refurbished ones at?
I am going to start locally to avoid shipping then I will list them on my blog/store. I am very concerned with the cost of properly double boxing and shipping them but we know what happens all to often if they are not!
@RavenWolfRetroTech Enjoyed this video because I have a C64 that works fine on a 1702, but no output is captured when using any more recent AV devices and AV to HDMI converters. It gives me good directions as to where and how to look into it. Thanks!
I'm glad it helped. If you are working on a 1702 but not a modern display you may have a machine with a 5-pin video out. They have the chroma and luma on a single pin and need a mod to work.
@@RavenWolfRetroTech My C64 is a 250407 Rev B which has a 7 pin connector. After doing Adrian Black's mod to re-route the composite to the RCA jack of the RF Modulator connector, I'm trying to connect it to AV to HDMI converter but nothing is showing an image, not even on my TV when connected directly to the AV inputs. After some digging, I found that C70 was changed because the C64 had Perifractic's NTSC/PAL switcher, which I removed, so my frequencies are too high. Ordering original specc'ed capacitor and will go from there. Your video definitely helped in understanding where to look.
How many more computers and bits and pieces to repair from the stone collection a few hundred?
I'm trying to better organize things now (Costco had a sale on Bins 🤓) I'd say about 100 computers, a similar number of drives and a couple dozen sundries... I am getting faster and the easier ones no longer get videos (Although video has to be shot since I never know which ones will end up interesting)