Commodore Amiga 3000 Rev6 Early model with ROM TOWER

E379: A Early revision Amiga 3000d , Rev6 in for repair. what could go wrong? alot of stuff... enjoy!
Like , Comment, Subscribe or support,
If you would like to help me keep this going, consider supporting my channel , either through patreon for as little as 1$ a month,
/ chrisedwardsrestoration
Or a one time Paypal donation at paypal.me/macp... you should see a irish captain picard. holding a green beer.
(you will see)
Thank you to all my current patrons and supporters, I can not express how much your support means to me.Because of you and your support and generosity, I am able to fund replacemenbt parts and repairs for others FOR FREE. I can not fix everything, but i do save many. So a personal thanks directly to each and every one of you! and members at the time of this filming are all listed in the description below!!
DR CHRIS Level
Daniel Anthony
Jonathan Wickett
Kevin Quattro
Patracy
Sutehk
Toby Quinney
Elite Patrons
Aaron Bond
Ady Bolton
Alexis Beaumont
Alvin Franklin
AT67
Andreas Karlsson
Bob Randale
Charlie Underwood
Craig Daters
Courtney Blush
Darren Attwood
Daniel Varga
Dominic Demarinis Sr.
Eric Jamieson
Frank Lowe
Gilbert carriere
Jack Moran
James Ezell
James Rizzo
Kevin Orbaker
Lois Dituri
Luis B Perez
Martin Frei
Martin Moore
Michael Wallen
RF C
Rod Piercy
Scott Jones
Seb132
Sebastian Gray
Stefaan Henninck
Stephen Bruce
Steve Kile
Sutehk
Tom Brooks
Wayne Lymbery
All Access Patrons
Adam Bowman
Alan Romeril
Alban Read
Amiga Bill Winters
Andrew Gray
AARexx AAron Ruscetta
Bendz
Byron S.
Chance Davis
Chris Kmiec
Christopher White
Clark Hale
CubicalNate
Dale Rierson
Dave Walz
David Ferguson
David Pippin
Erik Bakke
Garry Heather
Gaz Edmunds
Flavio Villanustre
Jean-Noël THIERRY
J. Walter Hawkes
Jace Fuse
Jay Jarvis
JoeTheZombie
Just_Egg_9896
Justin Hemmings
Kavanoz
Keith S
Kim Jensen
Kris Van Tuerenhout
Kym Busby
Lars H
Leo Beyers
Luca Argentiero
Mark
Mark Kierzkowski
Mark Jaques
Mark Pearson
Matthew Moebes
Michael Myers
Mikea3000
Mike Roach
Neil Bradford
Nimh Oli
Pepa Wastl
Peter Weuffen
Phil Cherry
Proteque - Skuggimaðr
RetroPassion
Schmosef
Simon Foster
Simon Marston
Stephen Durham
Steven Hunter
Terry Moore
Theuman
Tim J Corcoran
Todd Silk
Wanderley Ceschim
Wendell Pyle
Official Patrons
aZtOcKdOg
10 Minute Amiga Retrocast
Adam Currie
Adam Templeton
Alan Day
Alfie's Games
Antonio Drusin
Ashley Clifford
Ashley Dawson
Andrea Pizzichini
Andre Bergei
Ash Green
Brett Armstrong
Brian Haines
Brian King
BunnyBrewster
Charles Julian
Chris Cantwell
Chris Green
Chris Trickett
Christopher Adams
Craig Sharpe
Daniel Beaver
DannyDK
David Black
David Obrien
David Z
Dennis Garman
Deeter Rabbit
Dick van Ginkel
Dimitris Gialoglidis
Dr. Phil
Eder Ghiraldi
Edvin Helland
Etosha69
Frank Haaland
Frank Muscato
Frederic CONTE
Frederico
Geekology
Gerald Gibbons
Gerco Dries
Gjoken
Glenn Hann
Gregory Hayes
Gunnar Roxen
Greg Winfield
Ivan Sorensen
Jason Voak
Jerry Gibbons
Jeremy Trim
Joe Tom Collins
John Lomax
Lars J Aas
Marc
Mark
Markus
Mark Amorin
Manuel R Garcia
Mislav Krleza
Matthew Augustine
Matthew Rasnake
Matthew Hoe
Matthew Webb
Michael Englyst
Michael Fuerst
M W M
Nick Roper
NoeleyC
Niklas Arvenberg
Pawel Solecki
Pelle Norberg
PintzandAmiga
RavenWolf Retro Tech
Remon Kooijman
Richard Brayshaw
RoC
Rrenfrow
Russell Fairey
Ryan Stapleton
Simon Chatterley
Skylos
Steve Fenton
Sven Gugelmann
TD Bauer
Tim Fletcher
Tomas Kaluzik
Tristan Grove
Volker Ebbert
Wayne Bushby
Yngve Eide

[@alanhaynes4576]

Chris, in the land downunder we call the Cotton Swabs, Cotton Buds

[@HoldandModify]

Haah OMG. This was an adventure. Fricken Amigas! Once again I thank the GODS we have a Dr. Chris.

[@gdonner]

Awesome work as always! I'm convinced you have the patience of Job. FWIW, the Hyperion Entertainment 40.72 version of Kickstart is from ~2016. Here are some details from the "Workbench Nostalgia" page -> Release 3.1 -> Post-Commodore Enhancements": * exec.library 40.12: Updated the copyright information text. Fixed a small bug in the memory pools code which mirrors the same bug fix in the same code that was used in amiga.lib. * strap 40.3: The Boingball logo replaces the rainbow-coloured checkmark logo. Slightly brighter background colour. * workbench.library 40.6: Rebuilt with SAS/C 6.58 in order to free up more ROM space because of the copyright text in the updated exec.library. No other functional changes. * scsi.device 40.21 for A600: Small bug fix to the IDE task initialization, which now makes it possible to use it on the A600. Older Kickstart ROMs would use scsi.device version 39, because unlike version 40, it did not crash on the A600. * scsi.device 40.21 for A1200: Same binary as used for the A600. There were some minor Workbench fixes and a contribution from Olaf Barthel as well (on the same page as the above data).

[@DikkeBetha]

This board has got to be in the top ten "repaired by a caveman" list. Holy jump'n sh*t balls....

[@MrLukealbanese]

My God, that was a Herculean task Chris. Well done man.

[@miki_de]

Hey Dr.Chris I don't think it's right for them to send you things like this where the problems never end, of course you'll fix it since you're a professional, but you also have your time. Overall a great video, it was useful for us. greeting

[@ChrisEdwardsRestoration]

Haha story Of my life. I like helping save amigas but at least true up on the story. Not “worked the last time i used it bs”

[@miki_de]

​@@ChrisEdwardsRestoration you're great and I understand your love for Amigas, but this motherboard is a Hiroshima 😂. Probably, if you weren't so patient, you would have thrown her out the window 😂

[@ChrisEdwardsRestoration]

Hold my beer. Many worse than that to come

[@MrLukealbanese]

​@@ChrisEdwardsRestorationholy sheet

[@mart1nandersson]

I guess that the big question is what happens with the board when the owner receives it back? My bet is that it will go straight on to eBay and sold for a billion dollars. It's quite evident that his/hers understanding of the truth isn't exactly spot on.

[@chainq68k]

"Run when parked. Serious buyers only."

[@James_T_Quirk]

Awesome Work as Always, Chris, If they tell me "they tried to fix it", I usually expect Board & Chip Trauma, Aside from that, I had 7 SCSI Drives running off a A590, (Plus the Terminator Socket), 4 on some A2000's, So not the Longest SCSI cable I Seen, but definitely a Anaconda in the Box, After playing with Pi class PC's for a while, I had nearly forgotten the Mess of Older Connectors, except when I look in Box full of Amiga Cables here to remind me, or watch you fighting with one as well..

[@dalelarson3690]

Thanks again Chris for repairing the board, I sent you $50 dollars viaPay Pal

[@davidlibby5430]

Totally amazing! I wish I could get my A3000 working again, it was a beast with the 3640 board in it.

[@stephenburt7635]

Wow. Great job. I guess at this point I shouldn't be amazed when you fix something that at first glance looked like a goner, but I was.

[@ChrisEdwardsRestoration]

Wel buckle up theres way worse To come shortly

[@GadgetUK164]

Great job =D

[@byrons8956]

Finding a C64 CIA in an Amiga, I would expect lots of surprises.

[@tlaskows]

The what? They are not compatible. Finding a A1200 CIA in an A1200. The board in this video is huge. Very rare. There is only few people that would be able to repair it. That's like a server grade board. Didn't even know A3000 was a real thing.

[@a4000t]

27c240 eproms can be used to eliminate the rom tower and plug directly in the board. this works for boards up to 7.3 rev. Trivia: that being a rev 6 x board was never meant to be sold,commodore sold them to dealers as demo machines only but since the 3k was a hot seller stores sold those too.

[@ericjohnson6105]

Is that the reason for the tower, different ROM chip size vs. original sockets in the board? Guess that was one way of solving square peg-round hole.

[@keithruhl3545]

You never cease to amaze me Doctor.

[@cullmaster7361]

Awesome Sauce! Chris 👍🏻 I bought my first A3K a couple of months ago.. I think it may have issue with the Amber.. Not got around to look at it yet 🤔🙄 to confirm. But these A3K repair videos will help. Cheers 🍻

[@drphilxr]

Spoda-BEE! yeah that's like evaluating patients in the ER- the story evolves over time , and we pray we can figure it out in time! (don't forget to watch till the very end :)

[@ChrisEdwardsRestoration]

Jelly of the month club. The gift that keeps on giving

[@keithruhl3545]

Q-tips? we call them fuzzy balled sticks here in Canada. Kidding of course. Lol

[@tokyogentleman]

Great fix

[@rongodsman2902]

Incredible work, thought it was a gonna with all that damage, well done Dr Chris

[@TPau65]

It's always a joy to see how you (literally) dig under the surface of things! In this case the broken area at the four ceramics. 😉 Great you got this machine working again!

[@fu1r4]

20:27 They are called Q-tips because that is a brand. The correct name is "cotton swabs".

[@BerndFelsche]

I'm not keeping score but it seems to me that that is the most mis-bodged board seen so far. That "SCSI" chip wins bonus points.

[@kynkokytsumi1931]

Good job sir ... enlightening and educational :)

[@matthewmoebes2443]

Looks like I made the right decision in selling my Emplant card without messing with it.

[@memadmax69]

"I screwed up my amiga and I'm gonna have chris fix it for me..."

[@josephphillips9243]

Yeaaahhhhh. Two months dear god.

[@NEOGEOJunkie]

In the UK Q-Tips are called "Ear buds" or "cotton buds" 😊

[@alanhaynes4576]

Dr. Chris saves the day again, Top video. Great work Chris and I have to ask; How come no one has come up with an option to replace that ROM Tower? Or at least to allow the ROM's to be right side up? You sure are a glutton for punishment. Live long and prosper Dr. Chris, Savior of the Amigaverse.

[@ChrisEdwardsRestoration]

well you CAN burn the old style 27C240 roms, still stuck in the top sockets, but at least it would not directly need the rom tower. i have learned that these rev boards were meant to be the demo models at retailers, but due to the hot demand of the 3000 the were sold.

[@alanhaynes4576]

@@ChrisEdwardsRestoration so that is a bit of important Amiga history in itself. It was a retailer demo model. I find that fascinating. Thanks for that info. I went to a computer show in Brisbane Australia back in the early 90's and they had 2 x A3000's networked and running Dactyl Nightmare on 3d headsets. My son and I got to have a go and experience that. It was an awesome experience.

[@jonathanwickett9118]

I can't believe people just outright lie about their boards condition...surely they must must know Dr Chris will find out within minutes??

[@a4000t]

I've seen this a lot in 20 years, some people don't lie intentionally,they just do not know the damage they do. Some ..well... LOL

[@jonathanwickett9118]

@a4000t when it happens once, maybe, but it happens more often than you would think. And, massively burned traces and completely wrong chips fitted with the " it worked last time I used it guv" is pretty hard to miss for someone into Amigas IMO.

[@deborahberi3249]

Njce Video! -Mark.

[@rawberg_se]

Man I thought that Amiga was gone, Chris you're a real Amiga hero! But at the same time I felt a bit felt sorry for you, it sure wasn't an easy repair, the owner must be waaaaay more vision impaired than you :) I mean, how could he miss all that?

[@rubencorbo5861]

I know. I though it was agonner! Dr Chris is miracle worker!

[@ChrisEdwardsRestoration]

About 30 hours all in with tracing and checking and fixing. Wasn’t as hard as some upcoming ones. This owner did end up tipping me 50$ which was nice. I used it and my own money for parts for the next one.

[@keyboard_g]

This person smashed together a couple for-parts boards and got all this work and parts?! Love the videos but oof, this was a big ask.

[@bobrandale4864]

Love your repair videos! I just wish you weren't 8 hours away, or you'd have another patient as well as extra not-used goodie hardware...

[@ChrisEdwardsRestoration]

Well what is it!! Ill pay for shipping!!

[@bobrandale4864]

It’s a mess right now, and i just shut it down because the video started being weird… I don’t have a box suitable for shipping, (just the original Amiga box). I’ll send you an email with a current pic…

[@a4000t]

@@bobrandale4864 home depot sells a assortment of big boxes,or ask at the local stores for free used ones. pack it well because ace ventura may be your delivery guy :)

[@SoulStarLA]

Hi Chris, great video & helpful. Couple of questions for newbie working on an A3000 with battery damage. 1. For traces that are battery damaged on the component side, do you always do a repair with bodge wire on the non-component side? 2. What program are you using for the schematics to view traces? Is that kiCAD file or something else? I’ve found PDF and images, but can’t zoom in clearly to see traces on those. Thank you so much for your help! I am learning from all your work.

[@ChrisEdwardsRestoration]

I use the Circuit analysis program called Sprint Layout 6, you can use the viewer for free here : www.softpedia.com/get/Science-CAD/Sprint-Layout-Viewer.shtml and if you email me (info on about me page of main yt chan) i can send you the 3000 sprint files. i run bodges where needed depending on the breaks to complete the circuit original destination or closest point to

[@SoulStarLA]

@@ChrisEdwardsRestoration Hi Chris, Thank you so much. I tried to find your email on your YT page, but not luck. I would love to get those sprint files. Thanks again you are wonderful!

[@tokul76]

I hope owner said sorry on paypal.

[@ChrisEdwardsRestoration]

Nope but 50$ is better than 0$ and it covered return shipping and a 6 pack lol.

[@pikewerfer]

@@ChrisEdwardsRestoration wow - I would have been ashamed to send less than 200 after seeing that video....

[@nadaverbe8356]

Another Amiga soul saved from Hell!

[@davidwright9166]

Dale should go a priest with a confession to give. Many sins committed

[@mart1nandersson]

Have you tried soldering needles Chris? Awesome for clearing out through holes. Much safes than using drill bits or similar. Only costs a few bucks from eBay. Probably would've saved your fingers from getting burnt when fixing the ROM tower.

[@ChrisEdwardsRestoration]

i have microdrills i use, for stuborn old solder, but sometimes requres the manual method

[@mart1nandersson]

@@ChrisEdwardsRestoration The point with the needles is that you can place them against the hole and then apply the iron to the needle. Pushing through the via is then like poking into melted butter. Really worth a try when dealing with battery damaged electronics like Amigas and 68k Macs.

[@Toby_Q]

Hey my A2000 Rev 4 board has all MOS chips... I don't know if this board works yet, CPU socket needs rework. But it came with MOS chips so they must work on an Amiga!

[@dougjohnson4266]

Some damage from shipping? I purchased an Apollo V4+ that arrived with a destroyed mouse and cracked keyboard. (UPS Brown shipping love.)

[@ChrisEdwardsRestoration]

No way

[@gertsy2000]

2 months. Omg. (And I'm not talking low magnesium)

[@lintfordpickle]

Great video - the state this was sent in is honestly pretty disgusting, and not only the catalogue of issues, but also the statement "I checked for damage and couldn't see anything".

[@a4000t]

Hey he was just using the scsi chip socket to store a extra cia .🤣🤣🤣

[@BloodyCactus]

this is why i dont do repairs anymore "nobody has ever touched the board it just stopped working one day" :( then you get "you must have made it worse, it wasnt like that when i sent it to you!" "it had really really genuine realy 100% 71E41J when i sent it, you sent it back with a fake!" the hassle is not worth it nor appreciated :( my hat off to your fixes on this!

[@Prosonic]

cotton buds :)

[@psyolent.]

we call em cotton buds here in AU chris, not Q tips.

[@nadaverbe8356]

Q-tips comes from the circa 1940s when the nurses would stick a wooden stick into a cotton ball and twirl them, this resulted in a tail on the end of the "cotton tip" ball that resembled a "Q."

[@ChrisEdwardsRestoration]

Well there you go. Thank you!

[@jamespalmer5960]

@Chris Edwards Restoration I have an A500 rev 6a. that seems to be eating expansion cards its driving me nuts :(. the last one I put in was a week ago, newly made from AmiKit and worked until I tried the TestKit disk. ran the memory and it read 1Meg Chip (Mod done). Then ran the memory checker and it glitched on the lower part of the screen just a little bit but with no guru. resetting it and reloaded it only to see 512kb chip :(. have done the usual tricks to try and get it to work but no prevail. what would you suggest could be the lightly culprit or any suggestions on how to point the right direction. Im pulling my hair out and spending more on memory cards than the Amiga it's self.

[@ChrisEdwardsRestoration]

Gary, Agnus, or one of the trancievers U10,U11,U12,U13. does board ram work fine without the mods? start by removing the chips and reseating them, deoxit clean etc...

[@jamespalmer5960]

@@ChrisEdwardsRestoration Thanks for the info, the motherboard ram worked fine, even before and after the 1MB chip mod.After cleaning the chips and the U10 - u13's it seem to work periodically. saying for eg. 0.56MB on Testkit then switched off, switched it back on then would say 1.0MB. my guess maybe now narrows down to solder brake maybe or may need a solder re flow on the board something I would like to avoid doing. had to do the same with the keyboard caps was flashing (Once). that was a dodgy pin on the keyboards big chip. again thanks for the information it started to work sort of that was a good place to start, I did try and boot from my Gotek with a 1MB but it Guru ed after :(. lookes as if there could be a more bad joints somewhere.

[@SuperVstech]

Dr. Chris, you keep saying acid damage. Do you mean alkaline damage? Or is that fuzz from overuse of acid cleaning up the battery slime?

[@ChrisEdwardsRestoration]

Battery acids

[@tlaskows]

@@ChrisEdwardsRestoration Battery acids from RTC and other modules? Those were optional. But yeah, battery acid will corrode any TV remote for example beyond repair.

[@G1ngerNinja]

Rather you than me

[@davidwright9166]

I assume a nice donation to your channel is coming your way for this.

[@ChrisEdwardsRestoration]

Well keep assuming lol. Im told things and only sometimes am reimbursed shipping or given a tip or a patreon bump for the next fella

[@glennbojones777]

@@ChrisEdwardsRestorationman that really sucks dude you deserve so much better 😢

[@rawberg_se]

@@ChrisEdwardsRestoration I will donate to you in some way, you f**king deserve it!

[@dalelarson3690]

This was my board and I did donate $50 dollars to the repair

[@ChrisEdwardsRestoration]

Yay and i thank you

[@pikewerfer]

Wow - that board looks DEAD!

[@ajeba98]

Seems like someone through this into a junk pile and some else rescued it.

[@billymania11]

My thought is that the board was owned by a criminal. Only they have the brass to tell a straight up lie, like this guy did.

[@ChrisEdwardsRestoration]

Who knows or just didnt understand everything wrong

[@wskinnyodden]

So, the CIA is funky, just like the real C.I.A. ... hehe