Prelude Zorro 2 Amiga sound card - part 2 MPEGit FIX CRG 2024-01-14 | When we first put this card together we discovered that the MPEGit addon didn't do a great job at decoding MP3s, the audio it produced was full of interference. Turns out that issue was caused by the MPEG decoding chip but we have a replacement now so we swap that out but then find a new issue that might be impossible to solve. Does anyone have a source for 14.725mhz oscillators?Prelude build video - youtu.be/ssciI4E9FroLinksPrelude github - github.com/wiretap-retro/Prelude-ZII-Sound-CardPrelude software - aminet.net/package/driver/audio/PreludeSoftwareBundleV4.lhaAHI Version 6 - aminet.net/package/driver/audio/m68k-amigaos-ahiusrAHI record - aminet.net/package/mus/play/AHIRecord-68kAmiga Amp - http://www.amigaamp.de/You may need to install MUI, this is the latest version - github.com/amiga-mui/muidev/releases/tag/MUI-5.0-2020R3@GadgetUK164 Prelude VideosPart 1 - youtube.com/watch?v=hRnVjtIwi1QPart 2 - youtu.be/X9wJaO2XbPwCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro02:14 Swapping the decoder chip04:09 Magnification05:23 Is it fixed?07:08 From cables to pins08:19 All fixed now?10:33 Another problem!14:15 Microphone input16:54 Conclusion
Saving a Commodore VIC 20 for CHARITY CRG 2024-10-13 | Back in January of this year, Simon from @gingerhippygaming7962 got in touch to ask if I wanted a challenge. As I'm sure some of you know he had recently cleared out an old warehouse on which the roof had collapsed but under the mess he found a horde of vintage computer and console items. It took a while to get to me (pesky Irish Sea in the way) but it is here now and it has arrived with perfect timing as it coincides with the Commodore themed charity event being run by Lee from @MoreFunMakingIt. Lee and a bunch of us here on YouTube #mfmi2024 are getting together to offer items for sale with 100% of the monies raised going to the Befriending scheme - thebefriendingscheme.org.uk/. So what possible better use could this VIC-20 be put to, it suffered a terrible fate in that place in which it was found. Let's try to save it, try to bring it back and let's hope it raises a lot of funds for the charity. eBay Listingebay.co.uk/itm/176624647379Other CRG videos relating to this saleVIC 20 cosmetics - youtu.be/sCkvtFf33_gFinal Expansion 3 - youtu.be/s4mU6cVAIXYRefurbished PSU - youtu.be/vHJrPBFI4XIMFMI Linksmorefunmakingit.co.uk/mfmi-charity-2024morefunmakingit.co.uk/ebay2024Just Giving Donation Linkjustgiving.com/page/mfmi2024CRG LinksCRG-2 - youtube.com/@UCDFfWx7km9M8qRB9x5-_LjQ CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/kx2FS8TSWVCRG X (Twitter) - twitter.com/YT_CRG Chapters00:00 Intro01:55 Just how bad is it06:22 Cleaning and remove the obviously bad bits12:28 Thoughts13:50 New sockets, new parts and testing the rust16:59 Special Guest18:34 Moving the wire19:55 Does it work21:19 Scoping the problem24:48 Down the rabbit hole26:19 Kernal ROM28:56 Turning to google30:33 Testing the other board35:25 Back to the first board with RAM37:21 Omega Race40:00 Cleaning 40:48 The reveal42:06 Story time43:00 The charity listing49:17 Other charity links50:20 Making a donation
Building a FINAL EXPANSION 3 for the Commodore VIC 20 CRG 2024-10-07 | The VIC20 is one machine I've never been able to do much with as I've never had any means of loading software onto. But when I seen Foxhoria over on the discord building a Final Expansion 3, well I thought that looked cool so I bought two kits from them. One will go with the VC-20 charity auction running from the 12th (link will appear here) and the other is for me. Build and test, that'll be straight forward enough won't it? IT'S NEVER THAT EASY!CRG LinksCRG-2 - youtube.com/@UCDFfWx7km9M8qRB9x5-_LjQ CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/kx2FS8TSWVCRG X (Twitter) - twitter.com/YT_CRG Chapters00:00 Intro02:41 Build15:50 ICs and Programming23:43 Case25:03 Nothing is ever simple31:57 Testing42:52 Conclusions
RESTORING and UPGRADING this Amstrad PC 2086/30 CRG 2024-09-22 | Remember the Amstrad XT we looked at back in MAY... well its been lying in pieces on my bench since getting retrobrightened and I think its finally about time we put it back together. Since the case is looking all nice and fresh again, lets do the same with the software and restore that back to its factory state and then let's throw some upgrades at it. Site I got the 2086 systems disks from - vetusabandonware.comCRG LinksCRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVCRG X (Twitter) - twitter.com/YT_CRG Chapters00:00 Intro01:15 CRT03:34 Motherboard and HDD06:49 Does it still work?09:13 Software RESTORATION20:18 Windows 2.0326:44 Benchmarks28:23 Games31:38 Upgrades35:00 Upgraded benchmarks36:27 Upgraded games44:59 Downgraded windows?45:59 PIFs50:10 Another look at the CRT54:05 Conclusions
This Amiga Accelerator STILL refuses to work! CRG 2024-09-15 | The new tag ram chips have arrived so will that be enough to get this side car accelerator working once again? CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro01:37 Trying your suggestions04:10 HALT, BERR and other CPU probing07:46 What does it do without with TAG RAM08:36 New TAG RAM 11:31 Testing12:15 Defeated
This Amiga Accelerator REFUSES to work! CRG 2024-08-04 | This week we are looking at one of the original budget orientated accelerators for the Amiga 500. Sporting a 28MHz 68000 CPU but no fast RAM, only 16KB of cache this certainly is an interesting product but it is unfortunately faulty. So join me as we delve into the into this device, try to figure out how it works and why its faulty. CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:49 What's on and in the box06:27 First test08:29 Jumpers10:09 How it works12:29 Contact cleaner13:30 Silly Joke 14:11 Under the microscope21:19 Scoping clocks23:38 Observations26:53 PLD clocks30:55 CPU32:43 Conclusions
Can I save this battery damaged Amiga? CRG 2024-07-21 | This Amiga 500 Plus was very kindly donated to me last year by Neal of @NLKMediaGroup. He sent me this one along with another A500 rev 6 but this rev 8a (like most of them) has suffered the dreaded battery rot so lets look at it first. On initial inspection it doesn't look too bad but by the time we're finished this turns into one of the worst I've ever repaired. That might be partly down to me though as I tried something a little different when cleaning this board up. There's also a silly skit at the end so be sure to look out for that and thanks to @WhatHoSnorkers for the help :)Please make sure to check out the following YouTube Channels@NLKMediaGroup Retro computers and CB Radio@WhatHoSnorkers Spectrum type in gamesCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:28 Initial look03:00 Stripping down07:43 244 & 373 testing09:53 Cleaning up11:45 Dremel mistakes14:00 Solder coating14:56 Review of the damage20:42 Trace repair23:44 More repairs26:42 Almost back together29:11 Assembly31:38 Testing35:55 Real Time Clock41:36 Conclusion43:25 Always wear a face mask while using a dremel (skit)
BUILDING, TESTING and almost FIXING a backplane for the ZX Spectrum CRG 2024-07-07 | I recently had a cause to fit more than one expansion to my ZX spectrum at the same time so went on the hunt for some means of doing it. After stumbling across a 6 way backplane on project speccy I downloaded the gerbers, ordered the boards and attempt to get it working!So join me as we head far deeper down this Sinclair Rabbit hole than I thought possible. LinksProject Speccy - projectspeccy.comSpectrum schematics - spectrumforeveryone.com/technical/zx-spectrum-pcb-schematics-layoutParts - retroleum.co.ukMusic@Momentvm Cathode Ray Gun - youtube.com/watch?v=J-wUZp9XXbcCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro02:52 Assembly05:13 Fitting and Voltage06:17 The problems begin07:29 Other problems11:27 Back to the backplane12:57 Swapping ram and LS157s14:26 128k ram mod16:44 Loading problems19:15 The plan21:30 Address bus buffer testing24:12 Fireworks26:18 Termination30:39 More loading woes34:22 One last try39:53 Conclusion
Why is my ZX Spectrum Faulty? CRG 2024-06-09 | I pulled the ZX Spectrum down to show you all a new expansion but when I plugged it in to test it just showed garbage on the screen. I was sure this worked when it was last put onto the shelf but now its not so let's figure it out. Links Spectrum Schematics - spectrumforeveryone.com/technical/zx-spectrum-pcb-schematics-layoutSpectrum Parts - retroleum.co.uk/sinclair-zx-spectrumMusic@Momentvm Cathode Ray Gun - youtube.com/watch?v=J-wUZp9XXbcCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro01:25 Diagnostics02:27 Testing the ROM04:43 A look at the schematics05:29 Thinking about it 06:17 Logic Probe07:32 ROM pin 15?08:23 Physically broken?10:47 Found the problem13:08 Fixing it14:20 Is it fixed?
Building and testing a SID chip expansion for the Sinclair Spectrum. CRG 2024-05-12 | Two of the most infamous computers of the 1980s brought together over music. In this video we attempt to build a SID expansion for the Sinclair Spectrum and try to get it playing a few SID music files. Massive thanks to SparxUK for kindly donating this project. Additional thanks to @YawningAngelRetro for letting me hold onto his 128k for this build. Project Links ZX-TSID - github.com/UzixLS/zx-tsidNSID - https://zxart.ee/eng/software/tool/music/muzykalnye-plejery/nsid-player-pro/Tapir utility can be found on this page - worldofspectrum.net/utilitiesOther YouTube Channels mentioned in this video@WhatHoSnorkers - Spectrum based coding skills and cosplay (you just need to watch it to understand)CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro02:22 Assembly18:29 Programming24:12 5V regulator at 5V26:22 Initial testing31:02 NSID player pro34:42 Testing43:00 Another look at the SwinSID44:54 Finally figured it out50:19 Conclusion
Spectrum 128k Toastrack. Investigation and modification of this British computing icon. CRG 2024-04-28 | This week we are looking at a Spectrum 128k toastrack that belongs to @YawningAngelRetro. He asked if I could sort out a power issue and carry out a few mods so lets see what we can do. The mods completed in this video are a composite mod with audio and colour bleeding fix. Audio level fix, a jail bar fix and we also fit a new regulator. All components were purchased from retroleum.co.ukHigh quality spectrum schematics can be found at this link https://www.8bit-wiki.de/fileadmin/8bit-wiki/Sinclair/ZX_Spectrum/_zx128/manual/ZX%20Spectrum%20128%2B%20Schematics.pdfYoutube channels mentioned in this video:Yawning Angel (Amiga AMOS tutorials) - youtube.com/@UCAL2cRVgVCvbe8hscUCPbwA Rose Tinted Spectrum (Vintage gaming shenanigans ) - youtube.com/@UCGDTjXnyGM5flG6Xk6fiMAg CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro00:30 Letter02:38 Opening up04:47 Composite mod15:03 Components16:20 Colour bleeding mod18:33 Jail bar mod21:27 Audio level mod22:29 Replacement regulator26:43 Revisiting the jail bar mod32:40 Testing and printer problems34:34 Tape tester36:35 Dizzy
Hands on alignment of an Amiga disk drive CRG 2024-04-07 | We have 2 disk drives to look at this week. One of them just needs aligned which is the main focus of the video, the other I bought spares or repairs with no idea what's wrong with it...As I said in the video aligning a disk drive manually like this isn't necessarily the correct way to do it but it certainly is a lot easier than hooking up a scope and a lot cheaper than buying a test diskette (£60). I can't say for certain that it is aligned correctly but if it reads everything I try then surely that's enough. Software used in this videoAmiga Test Kit - github.com/keirf/Amiga-Stuff/releasesCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro00:48 Drive 1 inspection04:41 Testing06:57 Track 0 sensor adjustment (Lower head)10:50 Upper head adjustment13:48 Booting from DF114:55 Floppy drive speed15:28 Lubrication16:26 Quick note17:40 Drive 218:40 Its dead Jim20:47 Conclusion
Amiga 500+ Gary and Board repairs CRG 2024-03-31 | This Amiga 500+ was recently purchased by Allan as a spares or repairs project because like a lot of these the battery had leaked and wreaked havoc on the board and Gary. Unbelievably it did initially power up but when Allan tried to remove Gary for cleaning, several positions in the socket broke loose and the Gate Array unfortunately lost a few legs. Allan asked for help so lets get it fixed. CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro01:38 Removing the old socket03:16 Cleaning04:44 Touching up solder points05:55 Getting carried away07:57 Review of the work and coating the solder10:14 New battery holder13:12 New socket14:19 Gary19:38 Testing26:24 Conclusion
Amiga Test Kit Serial and Parallel Dongles build and test CRG 2024-03-27 | Amiga test kit is something you've no doubt seen me use a few times in the past to test various aspects of an Amiga computer but the one thing I've been unable to test up until now is the serial and parallel ports. To do that I need the loop back dongles and so Steve from the CRG discord ordered the required PCBs from the shared projects section at PCBWay. He very kindly sent me a few boards, I've got the parts for them here so lets put them together and test my A1200s serial and parallel ports. PCBWay LinksSerial Dongle - pcbway.com/project/shareproject/AMIGA_TEST_KIT_SERIAL_PORT_DONGLE.htmlParallel Dongle - pcbway.com/project/shareproject/AMIGA_TEST_KIT_PARALLEL_PORT_DONGLE.htmlCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro00:47 Thanks Steve01:43 Assembly06:39 Testing09:39 Conclusion
Can I fix this faulty Amstrad 2086? CRG 2024-03-03 | I've had this machine sitting in storage for a couple of years now but done very little with it. Its been far to long since I did anything with a retro PC and the old Amstrad certainly needs some love but since I last used it, it's developed a fault. So for part 1, can I fix both the PC and the Monitor? CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro00:58 Overview of problems01:49 PC tear down07:41 Motherboard tour10:55 Looking for a short12:01 Inside the PSU12:51 Floppy drive13:48 Hard drive14:43 Found the problem22:31 Testing the computer23:53 Will the hdd boot24:46 Tour of the HDD31:50 Monitor tear down34:34 Sketchy bit36:41 Leaky caps40:49 New caps45:00 Monitor testing51:45 Conclusion
Is this TF1260 or rev6 060 faulty? CRG 2024-02-18 | When Gerry reached out to ask if I would take a look at his TF1260 with its rev6 060 that's acting up, well, I offered to help. After all who wouldn't like the chance to play with a rev 6 68060, but, is there actually anything wrong with it?LinksTF1260 Firmware and tools http://www.tf1260.comLIV2's CPLD programming guide github.com/LIV2/Bluster/blob/master/Programming.mdCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro01:28 Testing Gerry's 126003:25 FPU?04:55 ATK testing05:55 Power cycling06:56 More testing08:00 Overclocking test08:50 Silkcut demo11:42 A possible solution12:39 Updating the CPLD firmware18:29 Conclusion
I broke a leg off this PLCC packaged FPU so lets fix it CRG 2024-02-18 | I got my 1200 out to test a TF1260 of which the owner is having problems but when I opened it up I thought I should perhaps first tidy up the FPU oscillator mod that I did a while back. No intentions of making a video about it but when I accidently snapped the clock leg off the chip (I had previously lifted this leg) I thought why not pull the camera out and show you that while it may seem like the end, something like this can be easily fixed.CRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro01:00 The "Dremel"03:30 Refitting05:20 Testing
10,000 subscriber donations special. CRG 2024-02-11 | I can hardly believe it but my little channel has rolled over 10,000 subscribers so I thought we'd celebrate by taking a look at some donations that have come in over the last year. Thank you to everyone who donated, @GadgetUK164, @hackbuildrestore, @ReEnthused, Sean Beyer, Sean from Amiga Ireland, @TerribleFire, Richard, Steve, Tyrell, @YawningAngelRetro, @NLKMediaGroup, Darren JohnstoneVideo LinksGadgetUK EMS ram card build - youtu.be/4EzCCTPdAM4Hack Build Restore Amiga Zip Disk - youtu.be/OmjO12MW9NkCRG LinksCRG X (Twitter) - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters 00:00 Intro01:36 From @GadgetUK164 04:17 From @hackbuildrestore 07:17 From @ReEnthused 08:55 From Sean Beyer12:39 From Sean15:52 From @TerribleFire 16:51 From Richard19:37 From Steve20:54 From Tyrell22:31 From @YawningAngelRetro 24:04 From @NLKMediaGroup30:32 From Darren Johnstone52:32 Conclusion
Can I fix this Sinclair Spectrum+ 128k? CRG 2024-02-04 | When TRU got in touch asking if I'd be willing to help with his ZX Spectrum+ 128k toaster well, its another machine I've not had much experience with so I was only glad to take a look. What turns out to be an obvious fault, sometimes these things do just need another set of eyes to be found. Many thanks to Jonathan (TRU) for donating the diag cart, I'm sure that will come in very handy for the future. CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic by Banjo Guy Ollie - @banjoguyollie Thanks to MFMI and his discord for help with this one - @MoreFunMakingIt Chapters00:00 Intro00:14 Letter01:58 A look around the Spectrum04:28 Getting inside06:57 Look what I found10:37 Checking voltages, reset and clock13:53 Looking for a video signal15:08 First power on15:36 Was it the short?16:14 Keyboard test16:49 Testing an old ram chip17:48 Assembling the diag cart kit22:05 Configuring the diag cart24:31 Testing the diag cart26:18 Conclusion
Replacing my damaged TF1260 edge connector - mini fix CRG 2024-01-17 | A few weeks ago while working on a shorted A1200 I tried to boot it with my TF1260 in the trap door and since the board didn't have a chamfered edge I managed to wreck the edge connector on the TF1260. No problem, its only 150 pins and replacement edge connectors are readily available so can I swap it out without causing any more damage?CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:37 The damage01:28 Removing the old connector04:04 Not off yet 05:13 Finally free05:40 Clean up06:11 Fitting the new connector07:06 Testing09:32 Conclusion
Amiga CD32 capacitor replacement CRG 2024-01-07 | Time for some more recapping of an Amiga but this is one we haven't covered on the channel before, the Amiga CD32. The system belongs to @GouldFishOnGames he asked me to carry out this necessary maintenance to his beloved Commodore Console. Make sure to check out the Gould Fish On Games YouTube channel, here is his review of the CD32 console: youtu.be/oQ5nQ7ACykc?si=yZdnPuodHYZnYeIBMusic featured in this video during the recap: Momentvm - Cathrode Ray Gun: youtu.be/J-wUZp9XXbc?si=ddIP8r4Eo1qtoIYECRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:50 Opening up and inspection04:36 Through hole to surface mounted08:41 Recapping13:18 A quick tour15:20 Why your CD32 is better than a PlayStation16:31 Powerful trivia17:40 Quick clean18:32: Recapping the recap19:37 Testing23:05 Conclusions
Can this Amiga guy fix this Atari STE CRG 2023-12-26 | The Atari ST range of computers are one thing that I've never really spent any time with so when Chris reached out and asked me to take a look at his faulty STE well I jumped at the chance to have a play with it. But this Amiga guy genuinely knows nothing about these machines so I reached out to someone who does know their way around an Atari and with Dave's help can we get this Atari STE up and running. Exxos Shop - exxosforum.co.uk/atari/store2Exxos PSU mod- exxosforum.co.uk/atari/last/psu/index.htm#DSP508Thanks to Dave from the This Week In Retro Podcast. Check it out here - @ThisWeekinRetro CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Silly intro00:53 What's in the box02:38 Dave05:35 Quick look around the case and accessories09:22 More Dave11:39 Initial test13:02 Opening up15:22 Is this the problem?16:22 The motherboard17:45 Final Dave20:33 The plan22:45 Repair montage25:56 Test28:24 Hdd port repair31:00 A bit more maintenance34:45 24 hours later35:42 Testing some ST titles39:12 Frontier41:11 Secret of Monkey Island43:55 We were at (oxygene)46:12 Conclusion
Building a Prelude Zorro 2 Amiga sound card CRG 2023-12-17 | Up until recently I never gave much thought to adding a sound card to my A2000 build. I mean why bother since the Amiga has fantastic sound out of Paula... Well, when the opportunity came up to join a group buy with @GadgetUK164 and a few other usual suspects I decided to join in the fun and so let's build a sound card for my Amiga... Let's build a Prelude with its MP3 decoder the mpegit addon. Prelude github - github.com/wiretap-retro/Prelude-ZII-Sound-CardPrelude software - aminet.net/package/driver/audio/PreludeSoftwareBundleV4.lhaAHI Version 6 - aminet.net/package/driver/audio/m68k-amigaos-ahiusrAHI record - aminet.net/package/mus/play/AHIRecord-68kAmiga Amp - http://www.amigaamp.de/You may need to install MUI, this is the latest version - github.com/amiga-mui/muidev/releases/tag/MUI-5.0-2020R3GadgetUKs Prelude VideosPart 1 - youtube.com/watch?v=hRnVjtIwi1QPart 2 - youtu.be/X9wJaO2XbPwCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:15 What we're building03:56 Time for some soldering04:35 My expansion slot brackets05:19 Back to the soldering06:32 Tantalums07:42 Resistors09:14 Finishing off the passives10:04 Crystals and sockets11:35 SMD soldering time14:53 Amazon capacitors? 16:07 How will we attach the MPEGIT? 17:23 Cleaning18:13 Populating the chips19:13 What does the PAULA sound like and what is AHI?26:04 Installing the PRELUDE and a weird error27:31 PRELUDE drivers29:55 What does the PRELUDE sound like33:02 MPEGIT installation35:36 MPEGIT problems39:43 Mixer and a microphone test42:56 Conclusion
Commodore 64 Kung Fu Flash mini build CRG 2023-12-10 | Time for a mini build project and this time we're putting together the Kung Fu Flash cart that Lee from @MoreFunMakingIt sent me. But I thought while doing this I'd also expand the video to talk a bit more about how I approach this type of SMD soldering. I'm by no means an expert so take it with a pinch of salt but wanted to show you in more detail how I do it. CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro
Can I fix this shorted Amiga 1200? CRG 2023-11-26 | Another repair to look at this week but this one is a little bit different in that this Amiga 1200 motherboard has a dead short between VCC and GND, buy why? This one sends me on a bit of journey but sure its all good practise. Featuring clip from @RobSmithDev used with permission. Robs videos on repairing a shorted 1200:Part 1 - youtu.be/AsxjCiL8l0A?si=Pr76UBdANi3UNdaK Part 2 - youtu.be/-jFgK8Pa1Yg?si=kR3shlLe-9QeWmT3CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:18 A look at the board03:30 Shorted capacitor?05:11 Is it the through hole caps?06:41 Is it the surface mounted caps?09:45 The plan to find a shorted ceramic.11:50 Not quite to plan13:20 Plan B15:29 Filter? 17:29 Repairing the broken power trace.17:52 Testing22:02 Trying to repair the CPU slot24:00 Wrap up
Lets finish the GBS8200 in Amiga 2000 EATX CRG 2023-11-21 | A couple of months ago I built a GBS Control mod onto a GBS8200 but also mounted it to a board so it could be installed within the Amiga 2000 EATX. On the day I left it with just a VGA cable hanging out the back of the case and while it works fine it left it very unfinished. Let's finally finish off the install by soldering on a VGA cable and printing a custom bracket to hold the card in place. My bracket can be downloaded here - thingiverse.com/thing:6289625The original GBSControl mod video - youtu.be/QJ3ZAn1Q7Os?si=1M9SWJ6CDWuKpQ2AChapters00:00 Intro00:36 Look what I found01:19 What goes where?03:48 Soldering04:34 Test fitting06:04 Does the video still work?07:01 3D printed bracket09:01 Conclusion
Lets build an Amiga Network Adapter CRG 2023-11-12 | I've owned an Amiga for the past 30 years but in all that time the one thing I have never done is put an Amiga online, I have never networked an Amiga. I found this Zorro 2 ethernet / clock port / ide card on gitlab so lets put it together and see if I can network an Amiga. Zorro Lan IDE Gitlab - gitlab.com/MHeinrichs/Zorro-LAN-IDERoadshow, Amiga TCP/IP stack - http://roadshow.apc-tcp.de/index-en.phpiBrowse, Amiga web browser - ibrowse-dev.netBracket - thingiverse.com/thing:6310738Thanks to screemo, @GadgetUK164 and the guys over on A1k.org for their help assembling this card. CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:22 A look at the card01:12 Getting started02:25 SMD soldering08:47 Through hole soldering10:34 Programming13:28 Jumpers14:44 Testing the IDE15:58 10 days later19:22 Replacement MAGJACK21:24 SJ222:32 Replacement LAN chip26:22 Breakout board bracket27:35 Conclusion
BlueSCSI V2 - mini build and quick test CRG 2023-10-25 | The Blue SCSI arrived for the A590 that we looked at previous so lets put it together and give it a quick test. This is the first of as new mini build series that I'm going to do, I've got a few small projects like this but the idea is to release these in between the regular videos. Let me know what you think of this good in the comments.BlueSCSI shop - bluescsi.flamelily.co.ukBlueSCSI V2 Github - github.com/BlueSCSI/BlueSCSI-v2CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:47 What's in the bag02:43 Assembly05:22 Testing08:27 Conclusion
Why doesnt this A590 work with this Amiga 500 Plus? CRG 2023-10-22 | When Richard reached out on the CRG discord looking for help with his supposedly good working A590 side car, well, its one thing I've never had the chance to work with until now so I was more than happy to do so. A bit of an odd one because the A590 was sold as working and the Amiga itself certainly works fine, so why don't they work together? CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:24 What's in the box01:02 Closer look at the edge connector01:48 Letter05:01 Reviewing the previous work07:13 Restoring the edge connector09:10 Testing the 500 first10:42 First test with the A59014:15 Testing and upgrading the ROMs20:17 Does the A590 work?22:16 Why doesn't it work on Richards A500+23:50 Another test25:46 Modifying the A590 to draw power from the A50028:45 Does it work?29:53 SD to SCSI34:17 Conclusion
PC Engine - Part 2 - Some things are never easy! CRG 2023-10-08 | All the accessories I need to finish off the PC have arrived but things are never as simple as you'd like. Few hurdles along the way and one complete mystery? This machine came from the storage unit that @gingerhippygaming7962 cleared. In part one last time we got it working, this video finishes it off... for now anyway, we're never truly finished with this things are we?Make sure to check out Ginger Hippy Gaming's channel as he has looked at many systems that were pulled out of this place. Playlist of videos pulled from this storage unit - youtube.com/playlist?list=PLAxCQOFSKoRJDgDfmMR2JWydENUHhdq2QThanks to @GadgetUK164 for his help and advice while working on this one. CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVChapters00:00 Intro00:40 What to do with the case01:25 Does it still work01:59 Joypad with problems04:15 Checking on the case04:34 New cable for the joypad07:56 Everdrive with a weird issue12:56 Voltage regulator heatsink 14:34 Back in the case17:22 Testing again with hu card and everdrive18:10 Has it fixed itself?22:13 While the irons out...24:00 Does it still show corruption?25:12 Remember the mod from part 1?27:56 Touching up the cart PCB28:49 Conclusion
Fixing, breaking and fixing an Amiga 600 CRG 2023-10-01 | When one of my patrons reached out on the CRG discord to say he was having trouble with his Amiga 600, I offered to fix it. Just showing a black screen and sporting some additional holes in the bottom of the case this A600 has obviously been through a hard life. I unfortunately add to its suffering through some accidental damage but by the end can we get this old computer working? CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro00:39 What's in the box03:05 Quick look at the PSU04:22 Opening the 60006:21 Everything we need to fix07:40 Getting started10:05 Potential disaster11:20 Actual disaster13:07 How NOT to repair lost pads14:30 C61215:27 A better fix and the correct caps18:00 Recap complete19:30 Repairing the drill damage21:59 Does it work?22:40 Testing the floppy drive23:30 Amiga Test Kit25:01 Keyboard26:25 Floppy drive30:44 PSU34:32 Conclusion and credits
Commodore 64 showing a black screen, can I fix it? CRG 2023-09-03 | I was recently lucky to pick up this Commodore 64 from Woz who had offered it on RMCs discord for the low price of postage only. What's the catch? Well it doesn't work, its displaying a black screen only so lets try and figure out why? Will it just be the PLA (a common failure point for a black screen) or will it be something else?CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro00:20 Looking around the system02:39 What's the symptoms08:47 It has to be the PLA10:42 Testing the VIC11:32 Anything getting hot12:45 Probing the MOS logic15:23 Why is U15 not being enabled?20:15 Replacing U1521:06 Diagnostics22:32 More problems?23:07 Refinishing the edge connectors24:44 Testing again25:25 406626:22 Keyboard test27:19 Loading a game29:08 Conclusion and credits
Crusty rusty PC Engine, can I save it? CRG 2023-08-20 | The NEC PC Engine is one console I've always wanted but for many reasons just never got round to adding to my collection. A couple of months ago fellow YouTube channel @gingerhippygaming7962 cleared out a storage unit, a storage unit in which the roof had collapsed, but this place was full of retro gaming goodies. He pull 6 PC Engines out of the mess and and kindly offered to send me one. Its in a very sorry state but lets see if we can get it working again. Make sure to check out Ginger Hippy Gaming's channel as he has looked at many systems that were pulled out of this place. the other 5 PC engines are going to various other channels and I'll update this description as those videos are released. Video footage from both @gingerhippygaming7962 and @RMCRetro used with permission. Massive thanks to Aergan (Simon) for all his help with this one. He has a fantastic knowledge of the PC Engine. Check out his wordpress here - aergan.wordpress.com/?s=pc+enginePlaylist of videos pulled from this storage unit - youtube.com/playlist?list=PLAxCQOFSKoRJDgDfmMR2JWydENUHhdq2QCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro00:21 Look around the outside01:45 Getting inside03:21 Removals08:22 Time for a bath13:03 What's next14:28 Reflow time16:57 Any trace damage?18:10 The switch20:22 Solder montage21:20 First test25:23 AV cable27:45 Video test29:38 Yellow wires32:02 Undoing a previous mod32:58 Another test34:03 Conclusion and credits
Amiga 500 Plus with battery damage and an unexpected expansion CRG 2023-08-06 | I always do what I can to try and help the local community with their Amiga woes and when one local user reached out looking help with his battery damaged Amiga 500 Plus, well I said I'd do what I can. Not just as bad as some but the battery has spread its contents over a fair bit of the board and there is some damage to repair but that's not the only surprise this machine is hiding. Something called an Vortex AT-ONCE is hiding in the CPU slot and Gary looks like he's made a tower to escape the battery poison. Featuring the voice talents of @MoreFunMakingIt and @RoseTintedSpectrum. Make sure to check out both their fantastic channels. CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro00:36 Lifting the lid03:53 Testing the chipset and accessories06:52 Assessing the battery damage10:26 Inspection after the cleaning12:10 Removals13:58 Dealing with the corrosion, breaks and exposed copper17:23 Trace repair18:34 Recap A500+22:21 Recap PSU23:35 Testing U10, U11, U12, U1326:28 First test28:34 Vortex ATonce investigation32:49 Vortex ATonce testing37:07 Will it run a game?39:59 Did it need recapped?44:01 Conclusion46:02 Credits46:51 The silly bit
CACHE and UPGRADES for the ICL TEAM SERVER CRG 2023-07-23 | The replacement cache for the ICL Team Server has arrived so lets try to resolve the Cache Ram Error but while the case is apart lets also throw a few upgrades at it. Those come in the form of a 5.25" floppy drive, ESS1868F sound card, Cirrus Logic VLB card and 32mb of ram (or so I thought).Thanks to @GouldFishOnGames for the donation of the VLB card, it performs fantastically in this machine. Make sure you go check out his channel here - youtube.com/@UC5Ee7qQWiSZDcdTnXB6fBfw @philscomputerlab ESS1868F review - youtube.com/watch?v=fWOdIuRO5fIDos benchmark pack - philscomputerlab.com/dos-benchmark-pack.htmlCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro00:35 Cache investigation and repair10:35 Installing the other upgrades14:09 Discovering a problem18:54 Is VLB faster20:28 Games - Duke3D23:58 Games - Doom 224:56 Games - Quake27:43 Games - Transport Tycoon 31:11 Conclusion and credits
Can I fix an eBay spares repairs ZX81 with an AliExpress Oscilloscope? CRG 2023-07-09 | I finally got myself a new Oscilloscope but not wanting to spend to much money I found one on AliExpress for only £40. I also recently bought a ZX81 from eBay that was sold for spares or repairs so can I use one to fix the other? Thanks to Lee from @MoreFunMakingIt for sending me the composite mod for the ZX81 along with same for the Atari 2600 and a Kung Fu cart for the C64! Make sure to go check out his channel and don't forget to say CRG sent you :) youtube.com/@UC5WFTrin8VTv397vQIA8mcA AliExpress oscilloscope - aliexpress.com/item/1005005368374529.htmlCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro01:02 First look and unboxing04:57 PSU test06:26 Opening the ZX8107:13 Look around the ZX81 board08:35 Powering up09:55 Testing with the scope13:06 Composite mod and thanks to @MoreFunMakingIt 19:22 What's on the screen19:44 More scope tests22:39 Down the ram rabbit hole26:41 Swapping the CPU28:52 Keyboard test and repair32:12 Will it load something?34:05 Ear input repair35:28 Will it load something now?40:01 Conclusion and credits
Amiga 2000(EATX) internal GBScontrol build CRG 2023-07-02 | We all know that the best video signal for native Amiga screen modes is that coming from the RGB port but as a 15kHz signal it typically can't be connected straight to a modern display. There are various scan doubler devices out there and one of the cheapest is the GBS8200. Cheapness usually equals poor quality though and while the GBS8200 does a decent job the image isn't the best. That's were GBS Control comes in though. This mod replaces the GBS processor with an arduino device running custom software that aims to fix the problems with the original device. There are further mods we can do to try and get every last ounce of quality out of the scan doubler and we can now even mount it to a daughter board to fit it internally in an Amiga 2000 or in my case an Amiga 2000 EATX. The GBS to A2000 board can be found here - pcbway.com/project/shareproject/Amiga_2000_Video_Card___Adaptor_for_mounting_GBS8200_internally.htmlCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters00:00 Intro01:59 Picture from GBS820004:58 GBS Control installation05:34 Programming07:27 Wiring11:05 Testing13:29 C11 mod16:09 Admission17:10 Faulty GBS?19:01 Testing21:14 RGB pots and sync mod26:54 Testing27:18 SI5351 clock generator mod29:03 Testing29:46 Power supply bypass caps mod32:19 Testing32:51 A2000 video port mod37:25 Testing38:54 Comparing GBS8200 to GBScontrol40:30 Conclusion and Credits
PC Investigation: ICL Team Server Part 2, it *mostly* works CRG 2023-06-18 | We're back looking at the ICL Team Server this week and with help from the community we finally have a working machine... well... mostly working.CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapter00:00 Intro01:40 House keeping and its an ACER04:00 Trying the ACER bios07:38 ACER bios setup09:23 Enabled the cache10:35 Trying to boot from floppy11:21 Testing the cache13:45 CPU Check, DX2 50?17:17 Tried everything18:58 EISA configuration tool24:35 Trying the SCSI HDD28:53 Taking a look at the door31:10 Conclusion and credits
PC Investigation of a 90s Floor Standing Server CRG 2023-06-04 | Any PC that has wheels on it must mean serious business and this floor standing ICL Team Server from the 90s is no exception. It currently doesn't power on so lets see if it can repaired and lets see what's inside this mammoth case. If anyone has a copy of the configuration disk for this machine, I would be forever grateful to get a copy!CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters 00:00 Intro00:33 Quick look around the outside02:32 Looking around the inside03:46 Expansion cards07:00 Motherboard08:24 Faulty PSU?10:59 Drives15:36 Trying the board17:24 Repairing the motherboard21:02 Trying the board again22:59 Looking through the BIOS25:33 Trying to boot29:23 Cache?32:19 Conclusion and Credits
Macintosh SE/30 Simasimac fault on a brand new board! CRG 2023-05-21 | After seeing my previous hardware adventures with Macintosh IIci, Derek reached out and asked if I'd look at his SE30 motherboard. This brand new board whic hhe built himself has encountered an enigma—it's showing the elusive simasimac pattern. So let's see if we can figure out why this newly built board won't boot. Can we figure out what simasimac is... can we even decide how to pronounce it properly...SE/30 schematics - github.com/mishimasensei/macse30mlbCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Cathode Ray Gun by @Momentvm Chapters 00:00 Intro00:55 Testing the new board02:54 Simasimac03:37 Could it be a bad rom simm socket?05:18 Could it be the ram?05:38 Could it be poor connection?08:20 After some reading10:16 Back to basics, reset, clock13:41 Could it be the chipset?17:58 Reflow the sockets and refinish the chips20:50 A problem21:45 Another test25:33 Swapping the expansion port29:30 Trying to boot with some odd behaviour31:42 Final test and look at the goodies35:14 Conclusion and credits
New case, new screen and an analogue thumbstick? CRG 2023-05-07 | Sega's GameGear was my handheld of choice back in the early 90s and while at the time it felt like a top of the range piece of kit, these days the screen leaves a lot to be desired and the d-pad while certainly not the worst is a far cry from modern thumbsticks. But after a little shopping on Aliexpress and eBay I aim to put that right with a new screen, a new thumbstick d-pad replacement and since we're at it, how about a new case and set of buttons. The aliexpress screen I bought is no longer stocked so I can't link it but plenty others are available that look similar. Just make sure to save the instrcutions. Retrosix eBay store for the other parts - ebay.co.uk/str/retrosix Retrosix youtube @RetroSix Dudley of Yesterzine youtube @Yesterzine CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVMusic - Lorraine's Friends and Cathode Ray Gun by @Momentvm Chapters 00:00 Intro00:39 Other goodies01:42 Screen parts03:00 Where's the instruction04:03 Removals07:24 Installing the new screen12:53 Screen test14:02 Installing the thumbstick17:55 New case23:23 Final tests27:11 Conclusion and credits
Macintosh IIci, can I finally get a working machine? CRG 2023-04-30 | Last time I had this battery bombed machine on the bench I got it to the point where it would power on and chime but it only showed a black screen. I asked for your help and there were some excellent suggestions, so in this video let’s try a few of those and see if it can be fixed. Let's be honest though I'm well and truly invested into the pursuit of having a working IIci so in one way or another I'll get a working system by the end of this... CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by @NaokisRC Music bed - Lorraine's Friends and Some Assembly Required by @Momentvm Chapters 00:00 Intro 00:28 Recap01:45 New diodes 02:44 Power supply 10:13 ROMs 11:57 Checking for more damage 17:17 Admitting defeat 19:02 A new hope 20:03 The electrolytic strikes back 22:53 Return of the IIci 26:25 Another look at the other board 30:15 Cache Card 32:17 Quick look at the old HDD 35:19 Inside the old floppy drive 35:54 Conclusion and credits
Sega Game Gear gets a recap and repair CRG 2023-04-09 | A few months ago a friend of mine got in touch to say his wife found her childhood gamegear but it didn't work and would I like it. Hard to turn down an offer like that so let's first see what else came with it then see if we can get it fixed.Game Gear schematics wiki.console5.com/wiki/Game_GearDigital Delights eBay store ebay.co.uk/str/digitaldelightsSMS Power smspower.orgCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by @NaokisRC Chapters 00:00 Intro00:37 What's in the bag?01:41 Testing the condition03:09 Tear down07:33 Removing old caps from the main PCB11:51 Power and sound board13:10 Why bother?14:08 Power and sound board18:35 Power board repair21:41 New caps for the sound board23:56 Why use electrolytics? 26:45 Fitting the through hole surface27:38 First test29:59 Where has the sound gone?30:34 Testing in another Game Gear31:39 Could it be the audio amp?34:55 What else could be faulty?36:46 One final test37:29 Conclusion and credits
Why will this Macintosh IIci not work, HELP! CRG 2023-04-02 | This one has been nothing but a struggle but when a MAC IIci came up for sale on RMCs discord for the low price of shipping only, well, I couldn't pass up an offer like that. What's the catch?, its suffered extensive battery damage and needs a lot of repair. But that's nothing we haven't done before, the MAC IIci is a great machine so let's see if I can get it work... Or that was the plan anyway. We do make some progress in the video but ultimately I can't get it going but I think it can be fixed, in fact I'm sure of it so I'm asking for your help, if anyone out there knows their way around these machines better than me, please get in touch as I'd love to get it running. Link to schematics - github.com/nickpunt/nubus-se30/blob/master/Schematics/bomarc/Macintosh%20IIci%20Schematic%20(bomarc).pdfCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by @NaokisRC Music bed - Lorraine's Friends and Some Assembly Required by @MomentvmChapters00:00 Intro01:42 A tour around the case04:37 First look at the insides09:18 Assessing the damage13:01 Removal of previous work and components19:00 Starting the clean up21:01 Assessing the damage23:04 Closer look at the capacitor areas24:36 How many patch wires?29:17 Repairs39:48 Thanks @ChrisEdwardsRestoration 40:11 First test40:39 More damage and second test41:16 Two weeks later...42:36 F245s45:32 Its not that but what's wrong now!46:55 One last roll of the dice48:45 I'm beaten, conclusion and credits
Can I fix this NEO GEO calendar error? CRG 2023-03-12 | Last year I bought myself a NEO GEO MVS, its one of those systems I've always dreamt of owning so got this from Aliexpress along with a supergun and all in one game cart. All was going well until just before Christmas when it threw up a calendar error. I've been missing my arcade games fix so let try to fix it or least find a work around...NEOGEO schematics - wiki.neogeodev.org/index.php?title=SchematicsNEOGEO unibios - http://unibios.free.fr/CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by @NaokisRC Music bed - Lorraine's Friends by @Momentvm Chapters00:00 Intro00:48 Closer look04:09 Is it just the crystal?04:38 What about the RTC chip?08:36 Voltage levels?11:44 Calendar error checks17:04 The soldering bit20:29 Unibios27:35 Testing31:35 Conclusion and credits
Amiga Sick Hundred - Part 3 - Composite Fix and Building a Chip RAM expansion CRG 2023-02-19 | Its time to finish off the Amiga 600, we need to sort out the lack of composite video and I’ve got a 1MB chip ram expansion to build. Massive thanks to Mark Brown (Supaduper) for sending us the parts needed for the composite mod along with a spare keyboard membrane. The new video encoder is a Sony device, part number CXA2075M. To complete the mod you need a 2.61k ohm metal film 1% resistor between pins 12 and 17. This composite mod can also be applied to the A1200 using the same parts and methods. YouTube channel @BranchusCreations has an excellent video on it here - youtube.com/watch?v=e2QI1_YjQSoCRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by Naokis - @NaokisRC Music bed - Some Assembly Required by @Momentvm Chapters00:00 Intro01:29 Quick fix of the LED cables03:01 Composite fix04:20 A massive thank you05:13 Composite fix13:20 Explaining the mods for the composite fix17:01 Chip RAM expansion build19:30 SMD soldering time23:10 Mini soldering montage24:12 LED?25:36 Mini soldering montage26:10 Polarity for a tantalum?26:45 Straightening up27:21 Through hole soldering30:20 First test31:00 Well there’s the problem31:48 Second test34:55 Conclusion and Credits
Amiga SICK hundred - Part 2 CRG 2023-02-05 | Getting back to the Amiga 600's this week and to my machine. Last time we discovered this eBay spares repairs units had no audio, no composite and no right mouse button or 2nd joystick button input. In this video its time to get under the hood and see if we can't get at least some of those issues resolved. CRG Twitter - twitter.com/YT_CRGCRG Patreon - patreon.com/user?u=13919007CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by Naokis - @NaokisRCChapters00:00 Intro00:50 Getting started02:09 RE-CRAP04:33 Lurking underneath05:25 Easy decapping06:08 What's next07:11 Broken bits08:55 Dodgy looking traces10:24 What about the inputs12:37 Repairs15:19 Testing17:35 Low Pass Filter23:57 2nd button input25:25 Composite30:27 Keyboard31:54 One last test32:36 Conclusion and credits
Lets build a TF1260 with a trip to Amiga Ireland CRG 2023-01-22 | It's been 3 years since the last one but on Friday 13th January I loaded up the car and headed for Athlone to Amiga Ireland. For my part of the show I decided to try and put together the terrible fire TF1260 accelerator. So join me as we try to put together one of the most powerful Amiga accelerators while taking in the sights of the event. Amiga Ireland - https://amigausers.ie/ Commodore Users Group Ireland - http://www.cugi.org TF1260 flashing CPLD guide - http://wiki.amigaspirit.hu/index.php/TF1260_firmware_upgrade_using_a_Raspberry_Pi Ron Nicloson speech - youtube.com/watch?v=gG_SvjO8w2o @8bitmanshed Amiga Ireland video - youtube.com/watch?v=gOuckWHEU4c @Djformula Amiga Ireland video - youtube.com/watch?v=xWiceBcTOws CRG Twitter - twitter.com/YT_CRG CRG Patreon - patreon.com/user?u=13919007 End music - Modspire by @NaokisRC Music bed - Some Assembly Required by @MomentvmChapters00:00 Intro01:25 Fitting the CPLDs08:21 Programming the CPLDs11:55 Let’s go to Amiga Ireland14:25 Finishing off the build17:50 Amiga Ireland19:32 Back home20:12 Why doesn’t it work22:27 Testing23:35 Getting hot27:43 Workbench and sysinfo 29:55 Pushing the clock34:26 Conclusion and Credits
Two Amiga SICK-hundreds. PART 1 - testing and repair of the first one. CRG 2023-01-01 | Two rather sickly Amiga 600’s have landed on the bench this week, one I bought spares or repairs the other was sent in for a recap but as we soon discover when testing its got a sick floppy drive and the case needs a little attention too. Part 1 looks at the Amiga that was sent in for work, it needs to be returned so lets do that first. If you need your Amiga recapped in the UK I recommend - retropassion.co.ukBut if you fancy doing it yourself here is a list of the caps required (for all models) - https://www.ikod.se/repairs/capacitor-listsThingiverse linksRear case clips - thingiverse.com/thing:3526463Side case clips - thingiverse.com/thing:3381904CRG Twitter - twitter.com/YT_CRGCRG Patreon - patreon.com/user?u=13919007CRG Discord - discord.gg/3hEzUxTxWVEnd music - Modspire by Naokis - @NaokisRC Chapters00:00 Intro01:17 Testing my A60005:51 Testing the other A60007:07 Opening up08:30 New toy09:18 Look what I see13:01 Inside the floppy drive16:10 Finally into test kit19:19 Starting the recap20:18 Removing the plastic bits23:27 SMD caps29:43 Little problem30:41 Refitting and repairing the IDE header32:15 Repairing the case35:16 Rusty case35:53 Another little problem37:12 Final testing 38:11 Conclusion and credits
25 of YOUR favourite demoscene DEMOS CRG 2022-12-25 | Its Christmas so time to kick back, relax and stick on some comfort viewing. For most that might be a favourite film or TV series but for me there is nothing better than a good demoscene demo. I have my own go to favourites but its always great to get recommendations for a few others so a couple of weeks back I asked that very question on twitter, what is your favourite demoscene demo. From everyone who took time to answer I have taken one recommendation and so we have 25 to get through. Yes this is going to be a long one but its broken down in chapters for each demo. If anyone has any more recommendations for great demoscene stuff then please let me know in the comments. YouTube Channels who picked demos@GadgetUK164 @AtariCrypt @retrobitstv @TimberwolfK @ThisIsPete YouTube Channels from which footage was taken@demoscenevids @AtariCrypt @Oerg866 @quadrigademogroup9117 @Overdozeofthedemoscene @KKAltair CRG Twitter - twitter.com/YT_CRGCRG Patreon - patreon.com/user?u=13919007End music - Modspire by Naokis - @NaokisRC Demos in order of appearance with YouTube and Pouet links for each. Amiga - Enigmayoutube.com/watch?v=iGpU3DicbLQpouet.net/prod.php?which=394Amiga - Desert Dreamyoutube.com/watch?v=jziQBWQxvokpouet.net/prod.php?which=1483PC DOS - Second Realityyoutube.com/watch?v=6kxQ4f66jAUpouet.net/prod.php?which=63Amiga - World of Commodoreyoutube.com/watch?v=u43uH-kQpzkpouet.net/party.php?which=71&when=1992Amiga - Mega Demo Red Sectoryoutube.com/watch?v=oTmpqBn4dfApouet.net/prod.php?which=3119Atari STe - We were @youtube.com/watch?v=IFQqj9_SC7Mpouet.net/prod.php?which=66702#c749574Symbolia by Accessyoutube.com/watch?v=j8V2GDmi7Jcpouet.net/prod.php?which=3516PC Windows - FR-08youtube.com/watch?v=Y3n3c_8Nn2Ypouet.net/prod.php?which=1221Commodore 64 - Bonzai Bromanceyoutube.com/watch?v=GZ2QouXh4W8pouet.net/prod.php?which=89371Atari ST - The BIG Demoyoutube.com/watch?v=6_Rp6YGQzbYpouet.net/prod.php?which=11350Amiga - Andromeda D.O.S.youtube.com/watch?v=wPEnyVkuUOwpouet.net/prod.php?which=404Scene 12Amiga - Cebit 90youtube.com/watch?v=O8Yd1mZqvyIpouet.net/prod.php?which=3024Mega Drive - Titan overdrive 2youtube.com/watch?v=gWVmPtr9O0gpouet.net/prod.php?which=69648Amiga - EONyoutube.com/watch?v=iD9xk3SDSYcpouet.net/prod.php?which=81094PC DOS - Crystal Dream 2youtube.com/watch?v=7mWbnVPwX4Upouet.net/prod.php?which=462Amiga - Interference Sanityyoutube.com/watch?v=BWYRIV8YVdkpouet.net/prod.php?which=401Atari ST - Sea of Coloursyoutube.com/watch?v=1hvFiv2hpYEpouet.net/prod.php?which=65921Amiga - Revolution youtube.com/watch?v=aF1qZgP0Q-spouet.net/prod.php?which=17765Amiga - Arte by Sanityyoutube.com/watch?v=vFh07lXfxTYpouet.net/prod.php?which=1477Amiga - Mental Hangoveryoutube.com/watch?v=zR9a4vTuuoopouet.net/prod.php?which=1472PC - Dopeyoutube.com/watch?v=HtXxM0pezAspouet.net/prod.php?which=37C64 - Red Stormyoutube.com/watch?v=-XHq7z81K4Qpouet.net/prod.php?which=2407Amiga - Hardwiredyoutube.com/watch?v=OZTnR3FpUEApouet.net/prod.php?which=981Atari 2600 - Chipheadyoutube.com/watch?v=1nTRMTnTeLQpouet.net/prod.php?which=68505PC Windows - Still Squareyoutube.com/watch?v=8qDSKtK8rbApouet.net/prod.php?which=60256Chapters 00:00 Intro 01:49 Enigma (Amiga) 05:44 Desert Dream (Amiga) 09:18 Second Reality (PC-DOS) 12:52 World of Commodore (Amiga) 16:23 Red Sector MegaDemo (Amiga) 19:39 Oxygene (Atari STE) 24:07 Symbolia (Amiga) 27:36 FR-08 (PC-WIN) 31:27 Bonzai Bromance (C64) 34:24 The Big Demo (Atari ST) 36:51 D.O.S. (Amiga) 39:52 Cebit 90 (Amiga) 43:28 Overdrive 2 (Mega Drive) 47:01 EON (Amiga) 50:11 Crystal Dream 2 (PC-DOS) 53:32 Interference (Amiga) 56:59 Sea of Colours (Atari STE) 59:59 Revolution (Amiga) 01:02:41 ARTE (Amiga) 01:06:10 Mental Hangover (Amiga) 01:08:41 Dope (PC-DOS) 01:12:30 Red Storm (C64) 01:15:03 Hardwired (Amiga) 01:18:49 Chiphead (Atari 2600) 01:22:02 Square (PC-WIN) 01:25:46 Conclusion and Credits
