What's wrong with this Apple IIgs motherboard?

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Adrian's Digital Basement

Adrian's Digital Basement

Күн бұрын

In this video I diagnose, repair and test an Apple IIgs motherboard with a RAM problem. The board also comes with the "not-so-useful" ROM 0, so I make a custom adapter and upgrade it to ROM 01. Thanks to viewer Mike for sending in the IIgs board originally!
0:00 Intro
1:01 Motherboard diagnosis and repair
20:23 Handmade ROM 01 upgrade
35:55 Switching between PAL and NTSC
34:39 Testing some IIgs software
38:41 Outro
--- Video Links
Mail Call where Mike sent in the IIgs motherboard:
• An Apple IIgs motherbo...
Adrian's Digital Basement ][ (Second Channel)
/ @adriansdigitalbasement2
Support the channel on Patreon:
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-- Tools
Deoxit D5:
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store.caig.com/s.nl/it.A/id.16...
O-Ring Pick Set: (I use these to lift chips off boards)
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Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW
Hakko FR301 Desoldering Iron:
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Rigol DS1054Z Four Channel Oscilloscope:
www.rigolna.com/products/digi...
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
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TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
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www.aliexpress.com/item/33000...
TS100 Soldering Iron:
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www.ebay.com/itm/TS100-65W-MI...
EEVBlog 121GW Multimeter:
www.eevblog.com/product/121gw/
DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
www.ebay.com/itm/USB-Logic-DS...
Magnetic Screw Holder:
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Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
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RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
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Plato (Clone) Side Cutters: (order five)
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Heat Sinks:
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Little squeezy bottles: (available elsewhere too)
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--- Links
My GitHub repository:
github.com/misterblack1?tab=r...
Commodore Computer Club / Vancouver, WA - Portland, OR - PDX Commodore Users Group
www.commodorecomputerclub.com/
--- Instructional videos
My video on damage-free chip removal:
• How to remove chips wi...
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino

Пікірлер: 275
@superspedboy0076
@superspedboy0076 2 жыл бұрын
i enjoyed the side mounted camera. you talking to us, made me feel like i was right there with ya!! as always keep up the great work adrian!!
@TheSulross
@TheSulross 2 жыл бұрын
its like we're seated at the bench along side him
@Mr_Meowingtons
@Mr_Meowingtons 2 жыл бұрын
i miss my apple IIGS it was lost in a basement flood back in 2006 :(
@madmax2069
@madmax2069 2 жыл бұрын
basement floods are horrible, i lost my LC475, SE30, TI-99/4A and its PEB, C64, Atari XEGS, and a few other computer bits in a basement flood.
@AdamKlein77
@AdamKlein77 11 ай бұрын
Saved it from a sizzling Death By Capacitor Plague.
@jasonscherer2631
@jasonscherer2631 2 жыл бұрын
Had to click on this one right away. My first computer growing up with an Apple IIGS and really regret ever telling my parents that it find to get rid of it.
@TheSulross
@TheSulross 2 жыл бұрын
havent been able to win ebay auctions to buy one - learning to program FPGA now - maybe the IIgs future will be via retro recreations. Because also get Apple IIe functionality too, seems like would be a great model to target
@kennethwadejohns8561
@kennethwadejohns8561 2 жыл бұрын
I remember when Byte magazine said that the GS stood for Granny Smith.
@TheSulross
@TheSulross 2 жыл бұрын
Apple did intentionally hobble its clock speed so it couldn't be competitive vis a vis the Macintosh line (it had color after all)
@Neodra
@Neodra 2 жыл бұрын
So happy you got it working and upgraded. I'm glad I sent it to someone who loves it enough to get it working again. Now lets see you tackle the Mac IIci hehe.
@tedthrasher9433
@tedthrasher9433 Жыл бұрын
I got my Apple IIGS in middle school and used it through my freshman year in college when I bought a Mac IIci. I still have it, including my 4 MB AE RAM and 40 MB Vulcan. My favorite computer of all time and the last computer that I owned where I felt that I could truly understand how it worked.
@m4rgin4l
@m4rgin4l 2 жыл бұрын
I love the 2gs case.
@JamesPotts
@JamesPotts 2 жыл бұрын
When Apple hamstrung the GS, I switched to a PC and never bought another Apple.
@TheSulross
@TheSulross 2 жыл бұрын
indeed, every computer model deserves to be engineered to its maximum potential per reasonable cost. it was obvious and insulting that Apple intentionally crippled the IIgs; kind of a preview of the Apple we know now that is leading the charge to obliterate right-to-repair
@mojoblues66
@mojoblues66 2 жыл бұрын
Welcome to the braindead Apple hater thread.
@dunebasher1971
@dunebasher1971 2 жыл бұрын
And Apple never recovered. Just think what they might be now if James Potts hadn't switched to PC.
@JamesPotts
@JamesPotts 2 жыл бұрын
@@dunebasher1971 exactly! But given they almost went bankrupt before entering the music business, they might have been in an even stronger position if they had been able to compete in the computer space
@joe--cool
@joe--cool 2 жыл бұрын
Same here. Wozniak's Apple Computers were the best thing Apple ever made. I could build my own expansion cards for it including a speech synthesizer. When LISA and Mac came out I was even more disappointed than with the Apple III. The only question then was Amiga or PC. Both were superior to anything Apple had.
@lordmmx1303
@lordmmx1303 2 жыл бұрын
I think at this point we need 3rd channel called Adrian's Parts Cannon
@PhobosTK
@PhobosTK 2 жыл бұрын
5:50 - The "Think Different" approach strikes again.
@MikesArcadeMonitorRepair
@MikesArcadeMonitorRepair 2 жыл бұрын
Great job on the repair! Always like watching you get this stuff back up and going.
@GodMode823
@GodMode823 2 жыл бұрын
I can sit and watch Adrian’s videos over & over & over & over again. This stuff is my favorite hobby.
@Inject0r
@Inject0r 2 жыл бұрын
Adrian, I really love the setting and different angles in this video! It takes the video to a whole new professional level of awesome. You are one of the genuine KZfaqrs, which makes the retro computer community a whole lot more fun. Thank you very much for that! Keep on doing what you’re currently doing, because I’m having a blast watching your videos! Best regards from The Netherlands.
@smakfu1375
@smakfu1375 2 жыл бұрын
I really love watching these videos. I only have vintage (e.g. man cave) room for my vic20, c=64 and Amiga 3000 (which are all original to me; I have some other cool machines, like my sgi indigo and dec microVAX, but they live in storage). I’d love a IIgs, as I always love its sound hardware and incredibly cool late 80’s design aesthetic. Sadly, between the pile of modern hardware and my limited vintage collection, even the svelte gs isn’t going to fit, so I live vicariously through you. These videos are also hugely instructional: despite 39 years (since I was six, with my trusty vic20) of tinkering and working in this industry, I can’t believe how many tricks I’ve picked up from these videos. Hell, I wouldn’t have correctly diagnosed the fault my c=64 developed had it not been for this channel.
@brentboswell1294
@brentboswell1294 2 жыл бұрын
The most unusual //gs'es in existence: the ones that were upgraded from //e's and are in a //e case. It would be cool if Adrian could come up with the parts to make one 😎
@ClearComplexity
@ClearComplexity 2 жыл бұрын
I have a Platinum that was converted so double whammy for being weird. My main machine is a Woz Edition that's fully loaded/upgraded. Still had to grab the Platinum IIGS when I saw it for sale, haven't seen one since (haven't really looked tbh).
@lemonherb1
@lemonherb1 2 жыл бұрын
It's really not that difficult. Maybe check in with MacEffects to see if they still have anymore of their replica IIe to IIGS upgrade basepans. That has all the proper openings for the ports for the GS logicboard, plus they also have replica badges as well, not to mention the clear poly carbonate IIe case.
@JayVBear45
@JayVBear45 2 жыл бұрын
Before I got my Amiga 500 I wanted an Apple IIgs. Still miss my Amiga. Thanks for this cool and instructive video. You've got me wanting a Commodore 64 again, my brothers kept trying to give me their old ones: a Breadbin, a 64 C And a 128, that they outgrew but I just wasn't interested - stupid me. They were Physics/Math/CompSci majors and are now Physicists.
@jonathancombe9991
@jonathancombe9991 2 жыл бұрын
I'm a bit behind with watching your videos at the moment but this was a nice relaxed video with the side mounted camera and a bit of chat about why you love the Apple II and went on to the Amiga. I like this style, thank you Adrian.
@stephendouglas684
@stephendouglas684 2 жыл бұрын
Enjoy watching your troubleshooting process! Very educational.
@VorpalGun
@VorpalGun 2 жыл бұрын
Any plans on doing videos on the unusual computers you have received over the years? Like the Soviet one for example? I'd love to see that up and running!
@thunderbeam9166
@thunderbeam9166 2 жыл бұрын
I’m sure he is, having repaired old Soviet electronics in the past finding data sheets, schematics, and certain parts can be a real pain. Some of their ICs don’t have western pin compatible counterparts or just have straight up bizarre packaging. One of the more common issues was that they used things like “B” Batteries (1.6-PMTs-Kh-1.5 batteries) and the only cells that fit in the compartment without adapters come out of dismantled 4.5v (3LR13) European lantern batteries.
@dr.zarkhov9753
@dr.zarkhov9753 2 жыл бұрын
Superb troubleshooting Adrian.
@rileyphillip
@rileyphillip Жыл бұрын
I remember seeing the GS GUI in High School. It was the first time I'd seen a proper GUI. I thought it was amazing! Thanks for the trip down memory land!
@suluturnip
@suluturnip 2 жыл бұрын
Thanks Adrian. I haven’t been getting any alerts about your new videos. I was lucky that you popped up as a recommended follow up to another one. Weird. Also, another great video!
@ercuesy
@ercuesy 2 жыл бұрын
Your videos are so entertaining, thanks Adrian!
@LeftoverBeefcake
@LeftoverBeefcake 2 жыл бұрын
It always sucks when chips fail, but when they fail and get scaldingly hot, at least that makes it super easy to diagnose the problem. ;)
@telemedic2000
@telemedic2000 2 жыл бұрын
Great video, Adrian. Very informative. Keep up the good work :)
@johnmarchington3146
@johnmarchington3146 2 жыл бұрын
Another great video, Adrian. You're a wiz.
@dhirendrapsingh6758
@dhirendrapsingh6758 2 жыл бұрын
Informative. Useful. Calming. Inspiring. Life-changing. Enjoyable. Heart-warming. Other.
@maniatore2006
@maniatore2006 2 жыл бұрын
Lucky guy you are, my first Amiga was a 500 but i loved it, a friend of mine had an Amiga 1200 with a Monitor, and i had just my old TV. But it was a great time. Thank you so much for that video. It brings back some good memories.
@retropuffer2986
@retropuffer2986 2 жыл бұрын
Love that machine. Brings back so many memories.
@mikesilva3868
@mikesilva3868 2 жыл бұрын
Same here 😌
@SonicBoone56
@SonicBoone56 Жыл бұрын
That diagnostic audio tone shifting up in pitch is hilarious lol. Wasn't expecting it to go up to a comically high pitched sound.
@75slaine
@75slaine 2 жыл бұрын
Fantastic episode Adrian 👍
@wolvenar
@wolvenar 2 жыл бұрын
Ya know, you really could have just dumped the rom from your other machine. Just a thought.
@douro20
@douro20 2 жыл бұрын
When I was in school in the mid-90s we had Apple IIgs computers but only one of them had GS/OS software on it. I believe they all had ROM 01 on them as well.
@renatoamaral8259
@renatoamaral8259 2 жыл бұрын
A+ repair!!! Great video and great fix.
@Gadgetman1989
@Gadgetman1989 2 жыл бұрын
Love learning about these kinda things Adrian!! Stay safe out there!!
@MadManDarkJedi
@MadManDarkJedi 2 жыл бұрын
Love to see the happy ending.
@lemonherb1
@lemonherb1 2 жыл бұрын
By socketing the Standard RAM, there will not be enough clearance to reinstall the front bezel of the case, so keep this in mind.
@adriansdigitalbasement
@adriansdigitalbasement 2 жыл бұрын
Oh. Interesting!! I clearly didn't try to install this back into a case! I guess I'd need to fix this if I ever did. I will update the description.
@adriansdigitalbasement
@adriansdigitalbasement 2 жыл бұрын
Ah looks like it interferes with the RF shield (possibly) I think it should clear if you just cut away that section above the RAM chips.
@RetroGamesCollector
@RetroGamesCollector Жыл бұрын
Really enjoyed this video, just got my first GS myself and am exploring what it is capable of. Like you said, it is a strange machine, the Apple IIs last hoorah all whilst Apple themselves were only seemingly concerned with selling Macs.
@hansbartels8201
@hansbartels8201 2 жыл бұрын
Great Video !!
@Flashy7
@Flashy7 2 жыл бұрын
I will always remember which is E0. Too bad I don't know anybody who even just saw a IIgs :D
@jonnycando
@jonnycando 2 жыл бұрын
I knew of them…even fiddled with one for a few minutes….but it was a time when I couldn’t rub two nickels together…..so didn’t ever have one.
@fixitbrokeitfixit
@fixitbrokeitfixit 2 жыл бұрын
Man this took me back. . Good times
@RobertPendell
@RobertPendell 2 жыл бұрын
You make me want to get a IIGS. I got my first introduction to computers with Apple IIe computers that my elementary school had.
@brendanfarthing
@brendanfarthing 2 жыл бұрын
Great video!
@locomotive282
@locomotive282 2 жыл бұрын
I like the screen capture overlayed while your at your bench.
@FernandoelChachi
@FernandoelChachi 2 жыл бұрын
Very interesting video like always
@Bianchi77
@Bianchi77 2 жыл бұрын
Keep it up, thank you for sharing :)
@mmemmo100
@mmemmo100 2 жыл бұрын
I like all of your videos very much irrelevant to the content because it is always informative and teaches a good way of thinking. i wonder what is your original profession if you don't mind asking. and keep up with the good work
@renatoamaral8259
@renatoamaral8259 2 жыл бұрын
You are very intelligent! Congrats!
@petarpuskarich3366
@petarpuskarich3366 2 жыл бұрын
If you ever come across one of the AMI - a or -1 vgc chips in a rom 00 I would love to buy one to have a defective vgc version for my collection. But Apple recalled most of them early on in the process of upgrading our 00 to 01 free upgraded. Great video
@JoesComputerMuseum
@JoesComputerMuseum 2 жыл бұрын
Come on, Adrian! Wearing a TRS-80 shirt while fixing an Apple ][? Blasphemy!! 😏
@spookyjames4347
@spookyjames4347 2 жыл бұрын
It's great that he's wearing a TRS-80 shirt while fixing an Apple ][. Next video he should an Apple shirt while repairing a TRS-80. He loves all old computers.
@JoesComputerMuseum
@JoesComputerMuseum 2 жыл бұрын
@@spookyjames4347 Yes. You missed the joke.
@TheSulross
@TheSulross 2 жыл бұрын
Tandy computers were affordable
@NorthShoreJoe
@NorthShoreJoe Жыл бұрын
So glad I came across your channel. Having done a year of Tech School myself back in the 90's learning electronics, troubleshooting, logic, breadboarding, soldering, etc. it brings back memories watching your troubleshooting techniques. MS-DOS 5.0 was the latest OS and QBasic and SQL92 were being taught everywhere at that time. I picked up a IIGS WOZ at auction but since I basically learned on MS-DOS Systems at Tech School, I'm worried about messing something up. I don't even know how to hook all this stuff up. The entire system came with (1) 5.25 (1) 3.5, keyboard, mouse, monitor, and ImageWriterII Dot Matrix. No Software Disks or Manuals. What are your recommendations for a website to find good manuals and are there any good forums I'd be able to join that can answer questions about the IIGS? Thanks. Subbed.
@galamoonretrogaming
@galamoonretrogaming 2 жыл бұрын
My best machine ever. Thanks
@MarSAttK
@MarSAttK 2 жыл бұрын
Adrian we're waiting for you to tackle de Mac Portable!!! :D
@rille47
@rille47 2 жыл бұрын
You truly are a master!
@lordsethos2000
@lordsethos2000 2 жыл бұрын
my heart for that poor floppy @ 4:12 - RIP.
@danman32
@danman32 2 жыл бұрын
With a hex code,, it's easy to tell which 4-bit bank is bad. First digit on the right is least significant 4 bits, 2nd digit on the right is most significant 4 bits.
@gbowne1
@gbowne1 2 жыл бұрын
On my GS I preferred loading stuff off the HD instead of floppy.
@brentboswell1294
@brentboswell1294 2 жыл бұрын
I don't know about the //gs, but on the //e, you could run the self test by holding down the solid apple key (or joystick button 1, since they were the same thing), during boot. Or control-solid apple-reset if the machine was already booted 😉
@MMuraseofSandvich
@MMuraseofSandvich 2 жыл бұрын
"Why did you have to make me guess?" Jobs: Because I can.
@williefleete
@williefleete 2 жыл бұрын
Used to have a few books about the 2GS, including screenshots of GSOS
@artursmihelsons415
@artursmihelsons415 2 жыл бұрын
Never seen Apple IIGS before. Nice repair and great logic to finding faulty RAM IC.. 👍 About ROM, probably, low and high bytes are separated in ROM address space in two halfs in original machine, but mixed back together for emulator. Doesn't looked to me like byte swap, as it is done in car ECU's etc.. About deleting used ROM chips - I, usually, before that, create readout image in PC and save it.
@fumthings
@fumthings 2 жыл бұрын
did apple do something similar with low and high byte when the rom was in 2 separate ic's?
@artursmihelsons415
@artursmihelsons415 2 жыл бұрын
@@fumthings Not only Apple did that on 16 bit machines when used two ROM's.. Same was done on AT and XT machines too by different manufacturers.. In case of Apple IIGS, by schematic, looks like ROMA14.H signal is what separates low and high part in one IC..
@VintageGamerLtd
@VintageGamerLtd 11 ай бұрын
Great video! So glad I stumbled onto this channel! =)
@cbmsysmobile
@cbmsysmobile 2 жыл бұрын
Thousand dollar computer in 1986 - Shall we ground the motherboard? No, that would require another wire. Just make sure the power supply case touches the motherboard shield.
@Jimblefy
@Jimblefy Жыл бұрын
Thanks
@yehey42
@yehey42 2 жыл бұрын
Hi Adrian, thanks for your very helpful video. I got a IIgs board with a similar problem as shown in your video. Can you tell me where i can buy the replacement ram?
@mikesilva3868
@mikesilva3868 2 жыл бұрын
Sweet 📼
@shanejohns7901
@shanejohns7901 2 жыл бұрын
@12:56 I think there are pretty basic ways of testing RAM chips. You basically write with all 0s, and read them back to make sure they are 0s. Then you do it again with all 1s, and read them back to make sure you get all 1s back. Advanced tests will then do some alternating pattern such as 11001100...1100 where they pair up the bits, and alternate the pairs as 1s or 0s. Most tests, if they are going to fail, will fail with the all 0 or all 1 fills/checks. Though given the nature of the sizes of the RAM chips it is possible to get strange errors that will only show up during the advanced pattern-filled tests.
@PatrickPoet
@PatrickPoet 2 жыл бұрын
thanks
@jumpjetcaptain495
@jumpjetcaptain495 2 жыл бұрын
Do you have the game Zany Golf for the ][gs ? I used to play that. I also used to have a 60mb external hd for my gs.
@JD3Gamer
@JD3Gamer 8 ай бұрын
I was working on a Colecovision and ran into that same issue with the RF shield being necessary for normal operation.
@samirsinha1135
@samirsinha1135 2 жыл бұрын
If you were wholly immersed in the Apple II line (as I was), getting the IIgs was definitely a step up. Shame Apple didn't invest more in the machine. Since both Wozniak and Jobs were gone by the time the IIgs was released though, I doubt there was enough old-timer support for the line for it to have survived beyond the 80s (really Wozniak's presence would've been the only hope.)
@redstone0234
@redstone0234 8 ай бұрын
Wozniak worked on thé IIgs It was it's first project After thé plane accident
@samirsinha1135
@samirsinha1135 8 ай бұрын
True he was involved in the initial development of the GS - but he wasn't an active employee of Apple by the time it was released in 1986.
@NJRoadfan
@NJRoadfan 2 жыл бұрын
Getting the OSSC properly calibrated to the native SHR modes on the IIgs was a royal PITA. Once its set, it looks pretty good, no jitter. I did have a problem with noise though. I don't know if its because I used the VGA input which lacks the low pass filter the SCART jack has, or a grounding issue. Directly capturing from my DVI2PCIe capture card didn't have that problem. One thing the IIgs has over the Amiga is a better sound chip. The 5503 DOC was much more capable than Paula.
@sumplais
@sumplais 2 жыл бұрын
I wish someone would or I had the know-how to design a IIgs board that would fit in a IIc case.
@TheSulross
@TheSulross 2 жыл бұрын
yeah, I wonder how much use the IIgs slots got...didn't the IIgs pretty much have all the features integrated that used to be added via expansion cards? imagine if Apple had introduced a model of the IIgs that was in the stylish IIc case
@sumplais
@sumplais 2 жыл бұрын
@@TheSulross One of the reasons I would love to see such a thing is that, according to wikipedia, one of the apple engineers was working on such a project after the Apple IIc Plus, but Apple had essentially given up on the II line by then and the project didn't continue.
@00Klingon
@00Klingon 2 жыл бұрын
I would love for you to explore RGB options for the IIgs since they seem to be fairly limited these days. Maybe try to get the RGBtoHDMI working with it?
@JuniorTully
@JuniorTully 2 жыл бұрын
Miss my WOZ edition IIGS. I kept it in like new condition decked out (replaced motherboard once) along with boxes manuals,etc. Then foolishly let it all go around 2005.
@Thrakus
@Thrakus 2 жыл бұрын
Does anyone know the name of the science kit for the llgs? Was a big box with probes in it for temp light and so on. I do not think it was ever sold retail but given to schools. Does anyone remember it?
@gamedoutgamer
@gamedoutgamer 2 жыл бұрын
Great job. Isn't the GS' Ensoniq 5503 sound chip better than Amiga's paula? Screenshots of Dungeon Master running on the GS look nice but is it slow at only 2mhz?
@mikecrane2093
@mikecrane2093 2 жыл бұрын
Original GS clocked at 2.4mhz, but could also be shifted down to 1mhz for compatibility with Apple II software. Accelerators brought that up to 8mhz (or more if you were lucky).
@gamedoutgamer
@gamedoutgamer 2 жыл бұрын
@@mikecrane2093 Mike, thank you. The GS is the one Apple I'd like to own. Maybe a IIe but the GS seems more interesting. Probably best I emulate before owning actual hardware. =) You owned one BITD?
@TheJeremyHolloway
@TheJeremyHolloway 2 жыл бұрын
Dungeon Master is meant to be played on the original system it was created for: the Atari ST!
@bricklearns
@bricklearns 2 жыл бұрын
I would like to see your iigs retrospective
@SuperMoleRetro
@SuperMoleRetro 2 жыл бұрын
What do you use to covert the video signal so you can use it on a regular flat screen LCD? I need that.
@adriansdigitalbasement
@adriansdigitalbasement 2 жыл бұрын
In this video I'm using the OSSC to do it. Concerts analog RGB to HDMI.
@tenminutetokyo2643
@tenminutetokyo2643 2 жыл бұрын
Can you do one on reading ceramic capacitor labels.
@galier2
@galier2 2 жыл бұрын
It was easy to guess that the wrong bit was on E1. If it had been in E0 you would have seen it in all screens, not just some of the screens. The auxiliary RAM bank is only used for the 80 col/560 px resolution images. The 40 col/280 resolutions do not use the RAM from that bank. Furthermore, if the bit error had been in the E0 bank, there would have been much more problems with other programs. Just my 2 cents.
@mikespangler98
@mikespangler98 2 жыл бұрын
My attempt at a rom 0 to rom 1 upgrade failed just like that. No difference between having the rom chip in, or having it out. So apparently I have the same faulty rom image you did. Grrr. Unfortunately my rom reader can't read those type roms or I might have figured that out sooner. By the way what speed were your Eproms? 150, 120, 70 ns? Thanks
@MattKasdorf
@MattKasdorf 2 жыл бұрын
I wondered about that; Adrian, why didn't you copy your ROM 1 chip?
@jmpiv4
@jmpiv4 2 жыл бұрын
I miss my apple IIgs the computer it self is still a beautiful computer
@chadhartsees
@chadhartsees 2 жыл бұрын
Parts cannon!
@joltdude
@joltdude 2 жыл бұрын
If you use audio sampling the extra ram can be useful
@kevin34ct
@kevin34ct 2 жыл бұрын
Do you know anything about the Atari 520 ST? I am trying to find some of the upgrades made for the original machine. I had the one wit TOS on ROM.
@mikecrane2093
@mikecrane2093 2 жыл бұрын
I sure miss my old ROM01 Apple IIgs. :( Upgraded the hell out of that old computer. Got rid of it after I had a stroke and figured I would never be able to use it again. /sigh
@genjii931
@genjii931 Жыл бұрын
Those look like the same expansion slots from an 8-bit Apple //. Did they not upgrade them to 16-bit in the //GS?
@tomolsen8830
@tomolsen8830 2 жыл бұрын
Hi Adrian, Always enjoy your videos. In my recent move from New York state to Arizona I managed to hold on to my Apple II GS and a Commodore 64C. The Apple II GS have had since new. My 3.5" floppy is no longer working and i was wondering what I could use to load software on to the II GS? I would eventually like to get the floppy drive working but for now need a method to load programs in to the computer. I do have a cable from an old modem for the Apple (8 pin mini Din ) an just wires on the other. I don't have any old computers with a serial port (sold them before he move) but would it be possible to use a raspberry pi to use as the host for ADT pro. Any help would be greatly appreciated. BTW love the mid week mini mail call no matter how long it is!
@adriansdigitalbasement
@adriansdigitalbasement 2 жыл бұрын
Check out the FloppyEmu for the IIgs. It uses a SD card and can even emulate a hard drive which makes the IIgs so much more useful.
@tomolsen8830
@tomolsen8830 2 жыл бұрын
@@adriansdigitalbasement Wow thanks for the fast reply. Will do that for sure. My eventual goal is to get the whole system back up and running again with the floppy drive and also the Applied Engenering pc transporter card. One other question, how do I find out which rom version it Has? The case is open and I can see the numbers on the rom chip. I did notice it said Microsoft.
@mwk1
@mwk1 2 жыл бұрын
23:42 - jak miło jest zobaczyć po latach, że ktoś jeszcze wygrzebuje z archiwum i korzysta z romlaboratory Siudyma! Szanuję i Pozdrawiam ;-)
@BertGrink
@BertGrink 2 жыл бұрын
I would like to get myself an Apple IIGS at some point
@jeffm2787
@jeffm2787 2 жыл бұрын
Not sure what you have against RF shielding. If it's all nasty and rusty I guess that would be an issue.
@TheSulross
@TheSulross 2 жыл бұрын
well, the analog RF TV broadcast signals that the FCC used to worry about interference with have by now all been shutdown. probably not much in contemporary households that some computer RF bleed would disrupt
@jeffm2787
@jeffm2787 2 жыл бұрын
@@TheSulross As a licensed HAM radio operator I wouldn't want to live next to him.
@nickwallette6201
@nickwallette6201 2 жыл бұрын
RF is used for so much stuff... the FCC isn’t just worried about analog TV. Analog (or digita) radio and TV, cellular, WiFi, Bluetooth, home automation... just to name the stuff you might have at home that could be disrupted. Not even to mention the licensed commercial stuff that exists all over the spectrum. If you knew for an absolute fact that it only spewed garbage in narrow unlicensed bands at low power, then the FCC wouldn’t require it today. But nobody tunes their RF emissions unless they’re building an intentional antenna.
@kaunomedis7926
@kaunomedis7926 2 жыл бұрын
Apple mixed bits to simplify PCB tracing?
@evensgrey
@evensgrey 2 жыл бұрын
An Apple ][gs 'accelerator' has exactly the same CPU as it shipped with from Apple, but one that isn't gimped. The 65C816 shipped from Apple was gimped because an ungimped one made the Macs of 1986 look pretty sickly.
@ovalwingnut
@ovalwingnut 2 жыл бұрын
Yep. Just hearing AMIGA.. still makes me swoon (in a manly way:). Burned into my brain. Good show. Thank you.
@fumthings
@fumthings 2 жыл бұрын
well, at least you only had 2 banks to choose from and the bit position turned out to be correct.
@Castaa
@Castaa 2 жыл бұрын
Is there any Apple IIgs software that utilizes or requires or recommends 1 to 4MB+ of RAM? Besides RAM disk type utilities.
@johnathanstevens8436
@johnathanstevens8436 2 жыл бұрын
AppleWorks, some of the GS/OS software like WordPerfect probably.
@TheJeremyHolloway
@TheJeremyHolloway 2 жыл бұрын
@@johnathanstevens8436 hell, there's regular Apple II - not IIgs - enthusiasts still using AppleWorks on their computers but loaded with modern 4MB and 8MB upgrades.
@FinalBossOfCanada
@FinalBossOfCanada 2 жыл бұрын
hey Adrain, could you send me that link to the diagnosis booklet, I cannot find it anywhere... thanks!
@jasonak
@jasonak 2 жыл бұрын
Most likely your exposure issue was having AGC on and light reflecting off your head (an issue I have too)
@Manx0Mann
@Manx0Mann 2 жыл бұрын
DEJA VU big time :D
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