TRS-80 video synch chaos

From: Doug Spence <ds_spenc_at_alcor.concordia.ca>
Date: Thu Jun 11 09:58:59 1998

On Tue, 9 Jun 1998, Tony Duell wrote:

> Firstly (based on other messages here), how have you connected the
> monitor up? According to my Model 1 schematic, the monitor connector has
> the video output on pin 4 and ground on pin 5 (the pins are numbered in
> the order 1 4 2 5 3 of course). It could be something trivial like a bad
> ground.

Doh!

Yes, Tony, your suspicion is correct. I had ASS-u-MEd that the ground was
on the same pin as on every other machine with a 5-pin DIN video connector
that I've played with. So I was using a stereo component cable, and using
the appropriate RCA connector to bring pin 4 to the monitor.

It looks like time to build a proper cable.

Maybe somebody should take my collection away from me before I blow
something up. ;)


Doug Spence
ds_spenc_at_alcor.concordia.ca
http://alcor.concordia.ca/~ds_spenc/
Received on Thu Jun 11 1998 - 09:58:59 BST

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