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Tandy PC-6 User Manual
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Manual
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Operation
Read
Out
~
9
IMEMOI
..
~~
BUZZER
RUN
GRA
!EXE!
Ready
P0
!MODEI
0
*!MODEI
1
10
BEEP
1
BUZZER
WRT
GRA
7515
IEXEl
10
BEEP
1
20~D
10
BUZZER
WRT
GRA
7509
IEXE\
20
GOTO
10
*!MODEI0
BUZZER
RUN
GRA
[§J0
(buzzer
sound)
!sTopl
BUZZER
RUN
GRA
STOP
POWER
SW
OFF/ON
Repeat
3
times.
Display
must
disappear.
Turn
the
contrast
volume.
Display
should
be
"Ready
P0."
The
display
contrast
must
change.
-18-
17
19
Table of Contents
Table of Contents
2
Specifications
3
How to Open Upper Case
3
Theory of Operation
4
Lsi
5
Ram Map
5
Buzzer Control Circuit
6
Interrupt Circuit
6
Keyboard
6
Power Supply
7
LSI (Pin Functions)
8
Display
9
Troubleshooting Guide
10
Test Programs
11
Operation Check
14
Pcb Assembly Views
19
Parts List
20
Electrical Parts
20
Mechanical Parts
21
Exploded View/Disassembly Instructions
23
Schematic Diagram
24
Main Block
24
Keyboard
25
Display
26
4
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Tandy PC-6 Specifications
General
Brand
Tandy
Model
PC-6
Category
Calculator
Language
English
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