From: epass@nyx10.cs.du.edu (Eric Pass)
Newsgroups: comp.sys.cbm
Subject: SX-64 User port Text file
Date: 5 Nov 1995 14:59:10 -0700

Hi all,

Here's some info on the SX-64 User Port which may be of interest
to SX-64 owners (and others).

TEXT IMPORT BEGIN
=================
     SX-64 vs Vicmodem & Promenade
     -----------------------------
             By E.T. Bear

Second Source, a Commodore service center located here in the
Sacramento area, recently had an SX-64 in for repair, they found that
the regulator in the power supply was bad, they replaced it, the owner
picked the unit up, a few days later it came back, again they found the
same regulator bad, replaced it a second time, once again the owner
picked it up and again brought it back, with the same problem.
They asked the owner what he was doing when the SX went down, he was
telecommunicating, using the famous Commodore "Vicmodem".

Second Source then called CBM and asked them about the "Vicmodem and
the SX".  Commodore stated that the two are not compatible.  Why they
have or did not pass this information along, only CBM knows.  Isn't
this always the case with CBM?

If you own an SX and a Vicmodem, it would be best not to use them
together.

Jason-Ranheim Co., now located in Auburn, Ca., has a publication that
warns the owners of the SX-64 not to use their Promenade C1 on the SX,
as you may damage the SX.  In the publication they state the problem
and the solution.


The problem:
------------

Commodore made a change in the USER PORT on the SX as compared with the
C-64.  On the SX, Commodore grounded one leg of the 9v AC supply.  The
Promenade uses this supply and it requires that the 9v AC be "floating"
from ground as it is in the C-64.

The Solution:
-------------

Jason-Ranheim has outlined a solution in their publication.  You will
require the following tools:

1- #1 phillips-head screwdriver
2- A sharp knife

First:  You will have to locate and remove the four (4) screws that
hold the plastic side moldings, then remove the two (2) corner mounting
screws located at the upper rear corners of your SX.

Next:  Remove the cover would be  n. 
wc-eate and r, using three
(3) fregips-head ssated at the upser olutverea whtic sver wou as utgethTve the coshit woo.,  ACfreer SX.

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s itgs, n a addequs4 in --

Jason-Ranool  --

Jason-Ranl  1805SX.duherialUDrewdl   in Auburn, 95603
Cen Nex(916) 823-3284porchommul Stheer ----
   (916) 823-3285e
),e!tic svToutheA (800)---421-7731 Ororti Te f Fee (3800)-421-7748 Fe
fren iin nia
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repcram itgof yilospatribilitpply aou moi mwarrantyesers).

TEXT IMPOENDGIN
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