Decwriter II

From: Computer Room Internet Cafe <netcafe_at_pirie.mtx.net.au>
Date: Mon Mar 29 19:56:15 1999

-----Original Message-----
From: Marvin <marvin_at_rain.org>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Tuesday, 30 March 1999 4:00
Subject: Re: Decwriter II

>It looks like the Paper Out signal goes into J3-6 of the keyboard assy. and
>goes into the main logic board on J2-AA/BB; the main board test point is
>TPZ17. It looks to be lo true judging by the pullup resistors.

Looks right, IIRC, the microswitch is tied to ground.

>it goes into E37 pin 12 (7474) and comes out on pin 9 as MPC8 Ready H.

Ok, that's what I needed to know, I'll have a play in that area, I think we
have a stuck
output here.

>test point is TPV20. I might add that the logic board I am looking at is
the
>M7728. I can scan in that portion of the schematic if you need it.

Ok, thanks, that would be great. I'll don't recall offhand the main board
id, I'll have a look later today.


Kindest Regards

Geoff Roberts
Received on Mon Mar 29 1999 - 19:56:15 BST