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NeXTstation Turbo Color Monitor

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vintagetech

Member
Joined
Feb 22, 2022
Messages
16
Location
Texas
Hi,

First time poster but long time collector. I have a NeXTstation Turbo Color as well as a regular NeXTstation. Been in the original boxes from the original owner for ages as I didn't have space to set them up until now. Hooked up the Color and turned on the monitor and got the power light on. Turned on the CPU and heard the drive spin up but after a while there was nothing on the screen so I turned off the monitor and waited a moment and tried to turn it back on. It no longer shows power to the monitor. I'm suspecting maybe bad caps?

Can try setting up the regular NeXTstation but wonder if the mono monitor from it will work with the Turbo Color, assuming that monitor is still good. Or I can set aside the Color for now just work on the mono system for now. Either way I need to get the Color's monitor working again but my current tool set and skill level is not at a level I can work on the monitor.

So looking to see if there is anyone who can help with it, preferably when I can get together too and learn the process. System is located in the Houston TX area but loading it up and heading to San Antonio, Austin, Dallas would not be an issue if nobody closer could help.

Thanks.
David
 
ISTR that the Color monitors from NeXT were a combination of Sony and Hitachi. (I think the 17's were Sony and the 21 was Hitachi, specifically)
Did the sound box give off a *pop* sound during power-on? A good blind check for all NeXT systems is turn it on, immediately spam COMMAND and the tilde key, press the power key, followed by Y, the enter key and see if it turns off.
Your other two biggies if this machine has been in the box for any considerable amount of time is there are a number of board mount SMD caps that need to be replaced and while the yellow BR-2/3 batteries do not leak (seriously, I'm still coming across original ones that are over 30 years old and they are chemically really stable) NeXT systems get weird once that battery goes flat or have been completely removed, but that wouldn't affect power to the monitor.

I've never tried plugging a mono monitor into a color slab or a turbo color slab. I can't answer that for you.
 
NeXT said:
ISTR that the Color monitors from NeXT were a combination of Sony and Hitachi. (I think the 17's were Sony and the 21 was Hitachi, specifically)
Did the sound box give off a *pop* sound during power-on? A good blind check for all NeXT systems is turn it on, immediately spam COMMAND and the tilde key, press the power key, followed by Y, the enter key and see if it turns off.
Your other two biggies if this machine has been in the box for any considerable amount of time is there are a number of board mount SMD caps that need to be replaced and while the yellow BR-2/3 batteries do not leak (seriously, I'm still coming across original ones that are over 30 years old and they are chemically really stable) NeXT systems get weird once that battery goes flat or have been completely removed, but that wouldn't affect power to the monitor.

I've never tried plugging a mono monitor into a color slab or a turbo color slab. I can't answer that for you.
Click to expand...
This is a 17" and yes I heard a pop from the sound box.

I looked and realized I can't plug a mono monitor into a color slab, they have completely different connectors.
 
I tried setting up the mono NeXTstation and it is completely unresponsive. Nothing happens when turn on power. Though I'm not fond of the "power switch" in the keyboard thing so who knows where the problem might be.

So it appears I have a dead NeXTstation and a dead Color Turbo monitor to debug.
 
If you got a *pop* from the soundbox, the slab is working, so you can focus for now on repairing the monitor or finding something else that supports Sync on Green to connect to it.

That's the DSP self-test at power-on, which means the CPU is running, the ROM is running and its running the power-on diagnostic before I dunno, hanging because it can't boot off the disk.
 
vintagetech said:
I tried setting up the mono NeXTstation and it is completely unresponsive. Nothing happens when turn on power. Though I'm not fond of the "power switch" in the keyboard thing so who knows where the problem might be.
Click to expand...
Well, I gave my Slab to my friend, and he managed to get it to boot, but had problems with the power.

Simply, if I recall correctly, you need power to get power. So, I think the problem was with the batteries. He found this out after swapping out the P/S a couple of times.

There's also a hack (a paperclip?) to get it to boot without the monitor, I think by shorting two pins together. But I don't recall the details on that.
 
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