November 23, 2019, 03:10:14 am

Recent posts

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Black Hardware / Re: Cleaning a non-ADB keyboar...
Last post by Theta-K7 - November 22, 2019, 08:45:32 pm
Well, luckily I noticed pretty quickly that it wasn't looking like most of the dirty keyboards I've been cleaning up, so I stopped before doing anything that shows.  Lesson learned.  Soap and water only on NeXT keyboards.   8)
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Black Hardware / Re: Troubleshooting 68030 Cube
Last post by barcher174 - November 22, 2019, 07:12:21 pm
All of the electrolytics should be replaced. They can look fine and still cause these problems. Maybe also try reseating and cleaning the ROM chip. My guess is the caps.
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Black Hardware / Re: Troubleshooting 68030 Cube
Last post by smyke - November 22, 2019, 06:54:55 pm
Thanks for the suggestions. I removed all RAM sticks (8 original, 4 aftermarket). I re-installed 4 modules starting at the outer edge of the board. There was no change to this behavior, swapped in 4 different modules, no change. What capacitors usually need changed? I see a mix of SMD and through hold electrolytics. None of them seem to be leaking. The board actually looks brand new. Here is a picture of what I see when the system turns on, when on this screen, I cannot do anything, seems frozen.
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Black Hardware / Re: Cleaning a non-ADB keyboar...
Last post by barcher174 - November 22, 2019, 02:49:22 am
I have unfortunately made the same mistake.
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New Technology / Re: NeXT Universal Soundbox Re...
Last post by bushnrvn - November 22, 2019, 02:35:13 am
Brian, please put me down for one board.  I've had a Nextstation sitting on a shelf for years because I haven't had a soundbox.  It will be great to get it up and running finally.
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Black Hardware / Re: Troubleshooting 68030 Cube
Last post by barcher174 - November 22, 2019, 02:13:56 am
Based on your description I think it's failing now before the POST. A pic might help.  Unplug everything from the board and try swapping RAM. You need a minimum of 4 sticks starting at the outer edge. Capacitor replacement is usually the next step.
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Black Hardware / Troubleshooting 68030 Cube
Last post by smyke - November 21, 2019, 07:14:01 pm
I was recently loaned a 68030 NeXT Computer for cleaning/troubleshooting (it was in unknown condition). As this is my first experience with NeXT, all technical aspects of booting it were new to me. I dis-assembled the cube and cleaned all components. After re-assembly, I powered it on for the first time. The screen came on, I heard a sound out of speakers connected to the monitor, a 'plop' sound. NeXT logo on the screen, and nothing else. I researched and found that after removing the PRAM battery, it defaults to netboot. The battery is bad, only reading 2v. Further reading had me boot to rom monitor by Command + ~ during power on. This brought me to a screen showing "NeXT ROM Monitor 1.0 (v41)" at the top of the screen. This never goes away and I do not see anything else; no keypresses do anything either. I do not see any NeXT prompt, nothing. Holding the power button on the keyboard does not power off the system. If I press Command + ~ again, the 'NeXT ROM Monitor..." banner flashes. To troubleshoot, I first disconnected the MO drive, same issue, then disconnected the hard drive, same issue.

Does anyone have any idea what to try next to troubleshoot this issue? I am not sure how to continue.

Thanks!
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Black Hardware / Cleaning a non-ADB keyboard wi...
Last post by Theta-K7 - November 21, 2019, 07:56:21 am
I recently acquired a little ultrasonic cleaner, so I've been disassembling and cleaning all my keyboards.  Throwing the keycaps in the ultrasonic cleaner for 10 minutes with a couple of tablets of denture cleaner works wonders.

While I've had each keyboard apart, I've been cleaning up the case/body with isopropyl alcohol and cotton wipes.  This has worked without any concern until I got to my first NeXT keyboard.  I noticed as I was wiping the keyboard body that my cotton wipes were getting very black, much more than with any of my other keyboards.  Growing concerned that I was actually removing the surface of the keyboard case, I stopped.  No visible damage done, fortunately.

But this raises the question:  Is isopropyl alcohol a no-no for cleaning a non-ADB NeXT keyboard, or is my keyboard just really, really dirty?
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Porting New Software / Dvorak Keyboard mapper and Mem...
Last post by Rob Blessin Black Hole - November 20, 2019, 08:31:53 pm
Hello NeXT Community: A few new ports here http://www.nextcomputers.org/NeXTfiles/Software/New_Ports/     thank you Dylan , a nice keyboard mapper and a memory tester.   

 If anyone has  new Ports or software they need me to upload to our NeXT archives please let me know via message. 

Best Regards Rob Blessin
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Black Hardware / Re: NeXTStation Turbo & hardwa...
Last post by MarkL - November 20, 2019, 11:48:26 am
But dv040 from the file archive does not work either on a standard NeXTstation under NS3.1.
That's what I experienced last night.
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