next megapixel display kaput!

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Title: next megapixel display kaput!
Post by: danthor on April 03, 2006, 07:50:44 PM
Hello!
Can someone tell me how to connect my nextstation "mono turbo"
to a Sony "N4006" Color monitor and soundbox?
I have the Next "150.00" 6 foot cable with DB19 connectors.  Can I splice it into a three-way cable like the Colour slabs use and connect the DB19 to the
slab, the other end of the DB19 the the soundbox and splice a "Sun type connector" to connect to my N4006 colour monitor?  Will the Sony "N4006" Color monitor display the monochrome/grayscale output of the "mono turbo slab"?  It sounds like it might?  Maybe? I bought a soldering iron at Radioshack... help... please... bitte...
Thanks,
Daniel
Title: Re: next megapixel display kaput!
Post by: Andreas on April 05, 2006, 02:25:25 PM
Quote from: "danthor"Hello!
Can someone tell me how to connect my nextstation "mono turbo"
to a Sony "N4006" Color monitor and soundbox?

A "mono" needs a megapixel display, not a color type monitor
Title: Re: next megapixel display kaput!
Post by: danthor on April 05, 2006, 07:55:11 PM
Quote from: "Andreas"
Quote from: "danthor"Hello!
Can someone tell me how to connect my nextstation "mono turbo"
to a Sony "N4006" Color monitor and soundbox?

A "mono" needs a megapixel display, not a color type monitor

Oh! I see, but it must be a NeXT megapixel "mono" display?  Even a vga
mono monitor that can multisync?  I'm desparate here.  Throw me a bone...
Anyone in the Seattle area have a nice megapixel they want to trade for a
colour megapixel?  You can send men to space, but try to make a mono
nextslab sync with a different monitor!
Thanks,
Daniel
Title: Re: next megapixel display kaput!
Post by: Andreas on April 06, 2006, 11:37:30 AM
Quote from: "danthor"
Oh! I see, but it must be a NeXT megapixel "mono" display?

See the other groups in these forum, there are some hacks to get other monitors to run. The main problem looks like that the soundbox electronic is build in the monitor...
Title: Can't I use a soundbox with a mono station?
Post by: danthor on April 06, 2006, 10:49:28 PM
Hello again,
Can't I use a soundbox with a mono station?  I thought I could take this
19 pin cable and make a "Y" cable from it.  Station to soundbox and finally
spit off to a vga "multiync" monitor?  I found a Techronix with BNC input
for R G B V H in the back.  I think I'm going to call in sick at work tomorrow
and try it.  Wish me luck or at least don't tell me I told you so when it fails...
Cheers,
Daniel
Title: next megapixel display kaput!
Post by: ash on April 07, 2006, 12:09:52 AM
From my limited tinkering, I would say you could route everything but pins 8, 9, and 10 to the soundbox, then connect 10 to the R G and B on the VGA and 19 to the VGA grounds.

http://www.netbsd.org/Ports/next68k/faq.html#monitor-pinout
Title: Ohhhh, this is tooooo weird...
Post by: danthor on April 07, 2006, 02:16:53 PM
Hello,
I called in sick from work today.  Took out my NeXT 19 pin video cable
marked 150.00.  From an original cube I think?  Opened the middle up
carefully (broke the monitor clock wire, but I'll fix it).  I began looking for
monitor, vertical sync, and horizonal sync.  After testing every wire I found
everything except monitor!  The pins are connected, I tested them with a
continuity tester, but the #$%#ing wire isn't in the cable...  :shock:
There are 17 wires in the cable, pin 7 doesn't have a wire.  That's fine, but
where the smeg is monitor!  I can count past 17 honestly.  What a day.
I found the following in the metl braided jacket.

3 wires wrapped in white string grey (pin 19 ground), pink (pin 11 +12V),
blue (pin 2 -12V).

Two lone wires gray (pin 12 -12V) and black (pin 1 +12V)

Also, I found 6 pairs of wires twisted together they are:

Green (pin 6 monitor data switch) / Yellow (pin 16 ground)
Brown (pin 15 ground) / Orange (pin 5 monitor data in)
Black (pin 14 ground) / Red (pin 4 monitor data out)
Brown (pin 3 monitor clock) / White (pin 13 ground)
Red (pin 18 ground) / Yellow (pin 9 horizonal sync)
Black (pin 8 vertical sync) / Orange (pin 17 ground)

So where is monitor the wire for pin 10?  It's connected, but where is it!

Maybe it's in the pin 19 ground wire?  It's the thickest...

Does anyone out the have a next megapixel forsale somewhere between Portland, OR and Seattle, WA?

Daniel
Title: Wasted day!
Post by: danthor on April 08, 2006, 01:00:11 AM
Hello again,
I made the cable and tested it with a continuity tester.  The monitor video,
vertical sync, horizonal sync, and ground are all correct.  I tried to test the
system (I've never actually seen this mono turbo slab run) with an HP A4033A monitor, but I don't hear a "beep" out of the soundbox and no picture from the monitor.  The monitor does sense the video signal, because it isn't
going into powersaving mode.
Maybe somethings foobared inside the cable!  I don't know.  This was really
a messed up idea.  Those wires are teeny tiny and hard to work with.  :roll:
Any ideas?
Cau,
Daniel
Title: next megapixel display kaput!
Post by: ash on April 08, 2006, 11:20:11 AM
It won't work at all without pin 10 being connected... dig deeper in the cable?
Title: found pin 10
Post by: danthor on April 08, 2006, 11:48:05 AM
Hi!
I found pin 10 inside one of the ground wires.  A wire within a wire.
The cable I built has all the wires in the next 19 pin cable going straight
through from the video port on the slab to the soundbox.  I took the female
end of a vga extension cable and spliced it into the slab end of the 19 pin
next cable connecting monitor video, horizonal sync, and vertical sync as well
as ground to the female ended vga cable.  It looks like a Y cable now.
Actually the monitor video, hor. sync, and vert. sync don't connect to the soundbox, it shouldn't matter?
Anyway, if the mono turbo slab was working correctly it may not be now.
I think I broke it at 1am last night touching the motherboard while it was powered up.  The power supply is fine, but the thing won't boot anymore.
Before I starting making this cable I tried to put the rom into a colour slab
just to see what would happen and the colour slab wouldn't boot.  Maybe the rom was bad on the mono slab?  I thought maybe it was trying to net boot, but I took out the battery and shorted the battery holder terminals and did a dance, but it still didn't help...
I just don't know.
:?
Title: next megapixel display kaput!
Post by: ash on April 08, 2006, 12:28:44 PM
Wow, um, messing with the ROM.  That's pretty daring.

So do things show up now on the screen?
Title: nothing on the screen
Post by: danthor on April 08, 2006, 01:18:05 PM
Hello again,
Nothing on the screen, but the monitor I used for testing (an HP A4033A
with R G B H V bnc connector on the back) seemed to sense the video and
didn't go into power saving mode.
If the machine will power up again maybe I'll try a different monitor.
It's my understanding it won't work with a colour megapixel monitor because
the megapixel syncs on green?
This HP seems to be a good multisync monitor and works with just about anything, but maybe it's syncing on green to?  I used it with an HP 735
PARISC machine and power mac G3 computer...
I guess I need to find out also if the vga monitor needs more signals than
just monitor video, h sync and v sync.  The next "150.00" cable is 6 feet
long, the 5 bnc to vga cable on the HP A4033A is at least 3 feet long and
add another foot for the spliced on female vga cable I added onto the
next video cable, maybe the signal is to weak by the time it reaches the
monitor?
Daniel
Title: Re: nothing on the screen
Post by: ash on April 08, 2006, 05:55:12 PM
Quote from: "danthor"It's my understanding it won't work with a colour megapixel monitor because the megapixel syncs on green?

If you connect the video from the slab to the red, green, and blue, then it doesn't really matter.  My monitor syncs on green and it works fine.

Quote from: "danthor"I guess I need to find out also if the vga monitor needs more signals than just monitor video, h sync and v sync.

It needs signal ground connected.  That's pretty important.  It's possible that the cords are too long.  Mine are very short because they aren't twisted or shielded like the originals.
Title: oui!
Post by: danthor on April 16, 2006, 01:26:44 AM
Hello,
I needed a couple weeks to cool down.  I think I trashed my motherboard
at 1 am touching the motherboard while it was running.  My cable seemed
to be correctly made, maybe I should have tried a different monitor.
I need to find a new motherboard and power supply, actually I was borrowing
another power supply from a colour slab.  I've been trying to install Mac OS X
Tiger on a couple of old powermac all-in-ones, trying to forget my pain, but
I haven't been too sucessful in either.
Well, until I find some new hardware the mono turbo slab is going back on the shelf.
Cheers,
Daniel
Title: next megapixel display kaput!
Post by: idylukewild on April 16, 2006, 08:20:13 AM
Black Hole Inc. is advertising:

Mono TURBO   Motherboard(includes CPU)        $   79.00    Black Hole Special Sale Price

[from http://www.blackholeinc.com/specials/blackhardware.shtml]

Might interest you if you didn't know about it. I have no idea how reliable Black Hole is at shipping hardware. The seller reviews for Black Hole on Ebay are scary, (although improving at the moment)! If Rob Blessin actually ships one to you it might ease the pain.
Title: cod
Post by: danthor on April 16, 2006, 08:26:13 PM
Hey thanks,
Maybe I should ask him to send cod...  :wink:
Daniel

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