Table of Contents
Advertisement
PROCESSOR TECHNOLOGY CORPORATION
CUTS, COMPUTER USERS TAPE SYSTEM
SECTION II
Step 23 continued.
(~
If you selected either the digital or
microphon~
audio
output options in Step 19, remove the jumper and install
a jumper between Augat pins A and B.
(~If
you selected the auxiliary option in Step 19, leave
tpe jumper between Augat pins A and B installed.
(~onnect
pin 2 of Jl (IN) to pin 4 of Jl (OUT).
(
Install CUTS in computer and turn power on.
Set
VRI
fully clockwise (CW).
"
,-,,,
) Measure the DC voltage at pin
~of ~
and write the mea-
sured voltage down.
(Call this Voltage A.)
Set
VRI
fully counterclockwiseG(CCW).
-,
t(
I,
(
Measure the DC voltage at pin
~of
JiJ"r
and write the mea-
sured voltage down.
(Call this Voltage B.)
Add Voltages A and B and divide the sum by 2.
(Call the
result Voltage C.)
An example follows:
Voltage A
(VRI
fully CW):
3.45 V dc
Voltage B
(VRI
fully CCW):
1.80 V dc
A
+
B
=
5.25 V dc
Voltage C
=
5.25 V dc/2
=
2.63 V dc
( ) Adjust VR 1 so that the voltage at pin 3 of U2 equals
Voltage C.
(In the preceding example this would be
2.63 V dc.)
Step 24.
Disconnect pin 2 of Jl from pin 4 of Jl.
( ) Step 25.
If required by your option selection, remove the
A-to-B jumper- and re-install the A-to-D or A-to-C jumper as
appropriate.
Otherwise, leave the A-to-B jumper in and go
on to Step 26.
( ) Step 26.
Using the two female mating connectors supplied
for Jl and J2, fabricate one or two, as required by your
needs, CUTS-to-Recorder interconnect cables as shown in
Figure 2-3 on Page 11-18.
11-17
Advertisement
Table of Contents
