Radio Shack Quick Printer II Reference Handbook

Vee
All
9
8
20
CS
10
21
V
pp
Vee
18
PD/PGM
4.7K
R11
t
~33
ROM*
PIN 9 OF 221
Vee
12
11
11
20
CS
13
21
V
pp
18
PD/PGM
234
Note:
Version
"A" Board:
- ROM* sourced at
-221. pin 9
-
RAM* sourced at -221, pin 7
- -23 not used.
To Pin 3
of 235
-271 (4K)
1 14
0- --0
<r----o---o---- A6
0- -0
7 8
To Pin 13
of all RAM's
RAM*
0- --0
To Pin 15 <r----o---o---- GND
of~67
0- --0
Version "0" Board:
- ROM* and RAM* sourced at-23
as shown on the Master Schematic.
-23 is used.
Note 2: A 14-pin Jumper Header is used at-271
on Version "A" Boards only.
FIGURE 23. Spare Gate Usage on Version "A" or "0" Boards
101

Radio Shack Quick Printer II Specifications

General

Brand	Radio Shack
Model	Quick Printer II
Category	Desktop
Language	English