Some success finding antiquated bits on Trade Me

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Some success finding antiquated bits on Trade Me

Postby bert on Sun Dec 18, 2011 9:03 am

The cockles of my heart have been warmed.

I've been trying to work out how to connect some monochrome monitors to these two XT's I'm restoring. I've managed to track a couple down, but they both have either damaged cables or had the cables cut off. Managed to track down some 9 pin D connectors to put in place of where the cable comes out of the screen. Second part is replacement cables - found some 9 pin cables that *should* work as video cables OK in another auction.

http://www.trademe.co.nz/Browse/Listing ... =430160614 (male connectors no use to me)
http://www.trademe.co.nz/Browse/Listing ... =430481823 (after confirming they're not actually VGA cables which are of course 15 pins)

The concept is reasonably straight forward - mount and solder the connectors onto the monitors' circuit boards where the original cables came from. Connect new cables up. Plug into XT's. Fire them up back up in their original glory.

Sounds simple eh. It gets better - only 6 of the 9 wires/pins are used in a mono cable!! :D I have a pin diagram to confirm this for the video cards.

Where I am stuck/worried is which pin goes where on the monitor circuit boards. I have two different screens (one still has cable attached but badly damaged so could possibly trace that) but both are probably different enough inside to make things interesting. Worse, my family friend who's an electronics guru is away for the holidays.

Advice anyone?

Cheers.
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bert
 
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Re: Some success finding antiquated bits on Trade Me

Postby tezza on Sun Dec 18, 2011 9:17 am

Bert,

As this is essentially a repair and restore post, I've moved it to that section.

Cheere
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Re: Some success finding antiquated bits on Trade Me

Postby tezza on Sun Dec 18, 2011 9:23 am

I would be inclined to trace the pins on the damaged cable. You mention one cable is not missing, just damaged. Is it only the connector that is damaged? In this case I would just replace the connector using one from the cable's your got. If you do, take lots of close up photos of the original connector first so you can reference back.
Tez (Terry Stewart) (Administrator)
Collection: http://www.classic-computers.org.nz/col ... /index.htm
Projects and Articles: http://www.classic-computers.org.nz/blog/index.htm
Twitter: @classiccomputNZ | YouTube: Terry Stewart
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Re: Some success finding antiquated bits on Trade Me

Postby bert on Sun Dec 18, 2011 10:17 am

tezza wrote:I would be inclined to trace the pins on the damaged cable. You mention one cable is not missing, just damaged. Is it only the connector that is damaged? In this case I would just replace the connector using one from the cable's your got. If you do, take lots of close up photos of the original connector first so you can reference back.


Well the damaged cable I'm referring to is the one on your "IBM green screen" that I hope to pick up from you sometime soon :) I'll email you in regards to organising that.
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Location: Wellington

Re: Some success finding antiquated bits on Trade Me

Postby tezza on Sun Dec 18, 2011 11:15 am

bert wrote:Well the damaged cable I'm referring to is the one on your "IBM green screen" that I hope to pick up from you sometime soon :) I'll email you in regards to organising that.


Ah, ok.
Tez (Terry Stewart) (Administrator)
Collection: http://www.classic-computers.org.nz/col ... /index.htm
Projects and Articles: http://www.classic-computers.org.nz/blog/index.htm
Twitter: @classiccomputNZ | YouTube: Terry Stewart
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