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Mystery TI-99/4A part

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Got this when I bought my TI setup. Can't for the life of me think of anything that goes from the A/V port to a 25-pin RS-232-like port, but here it is.

 

post-12390-12560061024_thumb.jpg

 

post-12390-125600610428_thumb.jpg

 

Any ideas?

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Some of the older monitors used large DB connectors for input. Metering what those pins are connected to on the DIN might provide some insight.

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Yeah, it's definately not related to RS232. It's probably a custom monitor cable. As was suggested, meter out the pins to see which is connected where if you want to suss it out. :)

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You know what I miss? I used to have an RS232 25-pin cable that you could easily dismantle the plastic shell around the plug & rearrange the wires. That made for an easy modem cable, etc for my TI back then. The only cables I could find are fully enclosed not unlike power supplies.

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I'm wondering of someone had a switchbox and build some custom monitor cables so they could use multiple systems with it.

Makes sense. I'd have done something like that...

Now that I see that, maybe I will again.. :-)

 

desiv

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You know what I miss? I used to have an RS232 25-pin cable that you could easily dismantle the plastic shell around the plug & rearrange the wires. That made for an easy modem cable, etc for my TI back then. The only cables I could find are fully enclosed not unlike power supplies.

 

You can still build one, you just get the hood and the solder connector separately. :)

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You know what I miss? I used to have an RS232 25-pin cable that you could easily dismantle the plastic shell around the plug & rearrange the wires. That made for an easy modem cable, etc for my TI back then. The only cables I could find are fully enclosed not unlike power supplies.

 

Well, I've an RS232 breakout box, probably came from Radio Shack, you just move the wires around. Comes in very handy.

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