Tandy PC-6 User manual

Tandy
Brand
Tandy
Model
PC-6
Type
User manual

Tandy PC-6 is a pocket scientific computer. It is a powerful tool that can be used to perform a variety of mathematical and scientific calculations. The PC-6 is also a programmable computer, which means that you can write your own programs to perform specific tasks.

The PC-6 has a number of features that make it ideal for students, engineers, and other professionals who need to perform complex calculations. These features include:

  • A large, easy-to-read display
  • A full set of mathematical and scientific functions
  • The ability to store and recall programs
  • A built-in clock and calendar

The PC-6 is also very easy to use. The keyboard is well-organized and the menus are clear and concise. The PC-6 also comes with a comprehensive user manual that will help you get started.

Tandy PC-6 is a pocket scientific computer. It is a powerful tool that can be used to perform a variety of mathematical and scientific calculations. The PC-6 is also a programmable computer, which means that you can write your own programs to perform specific tasks.

The PC-6 has a number of features that make it ideal for students, engineers, and other professionals who need to perform complex calculations. These features include:

  • A large, easy-to-read display
  • A full set of mathematical and scientific functions
  • The ability to store and recall programs
  • A built-in clock and calendar

The PC-6 is also very easy to use. The keyboard is well-organized and the menus are clear and concise. The PC-6 also comes with a comprehensive user manual that will help you get started.

/~
I
TANDY®
•
ervlce
POCKET SCIENTIFIC COMPUTER
PC-6
Catalog Number:26-3672
CUSTOM
MANUFACTURED
FOR
RADIO
SHACK,
A
DIVISION
OF
TANDY
CORPORATION
CONTENTS
PAGE
SPECIFICATIONS
•....••..•..•...........•.........•...•....•..•.•........•.•..
3
How
To
Open Upper
Case
....................................•............••..
3
THEORY OF OPERATION
...........•......................•.......••..........
4
Block Diagram
...•..•••..••••...•.•..........•..•.........•.•.....•.....•••.
4
LSI
•.............................
·
......................•.......•.........
5
Ram
Map
...••.....•••..........•...........•........•.......•.............
5
Buzzer Control Circu
it
•..........................................•...........
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
Display Method
Display
Calculation
Range
Program System
Program
Language
Number
of
Variables
RAM Capacity
Program
Areas
Number
of
Stacks
Subroutine
FOR
'V
NEXT
LOOP
Operators
Power Supply
Power Consumption
Battery Life
Memory
protection
battery
Auto
Power-off
Ambient Temperature
Dimensions
Weight
SPECI
FICATIONS
5 x 7 dot-matrix crystal
24-digit, dot-matrix liquid-crystal display
±
10-
99
'V
±9.999999999 x 10
99
Stored System
BASIC
26 fixed variables, exclusive character variable
and
array variables
7520 bytes (system
area:
672 bytes)
Maximum
of
10
(PO
through
P9)
8
levels
4
levels
12
levels
2
lithium
batteries (CR-2032)
for
main frame
1
lithium
battery (CR-1220)
for
memory backup
Maximum 0.07W
1)
Continuous program execution: approximately 85 hours
2) Continuous display
of
5555555555 at 68° F (20°C): approximately 200
hours
or
5.5 months when
unit
is
used
1 hour per day
NOTE: 1 hour includes 10 minutes
of
condition
1)
and
50 minutes
of
con-
dition
2)
Approximately 2
years
(with main batteries installed)
Approximately 6 minutes
32° F
to
104°F
(O°C
to
40°C)
3/4"H
x
5-5/8"W
x
2-3/4"D
(18 mm x 142 mm x
71
mm)
5.8 oz (165 g), including batteries
How
To
Open Upper
Case
Tweezers
1.
Insert the tweezers
into
the back
of
the upper
case.
2.
Move tweezers gently in the direction indicated
by
the
arrow in the figure below.
-3-
THEORY OF OPERATION
Block Diagram
KEYBOARD
a1"Va6, d1"Vd6
b1"Vb6, e1
"Ve6
c1
"Vc6,
RD"V
R14
Km1"VKm12
DOT-MATRIX
DISPLAY
5 x 7 dots,
24
digits
a7"Va12, d7"Vd12
b7"Vb12, e7"Ve12
c7"Vc12, RD"VR14
D1-D8,OP,
CE, C1,
C2
GATE
ARRAY
IC4
MB64H193
RAM
IC3
HM6264ALFP
OPTIONS
26-3671
26-3651
CMT
26-3652
26-3652
NOTE:
Only
one
of
2 options
can
be
connected
at
a
time.
-4-
LSI
Main
CPU
HD61747B20
Sub
CPU
HD61747B25
Gate
Array
MB64H193
RAM
HM6264ALFP-5Q,
BASIC
control,
Key signal
input/output
(lower keyboard), 1st
to
6th
digits and
13th
to
18th
digits display control.
Calculation,
I/O
control, key signal
input/output
(upper keyboard),
7th
to
12th digits and 19th
to
24th
digits display control.
Interface between
CPU
and RAM, buzzer control.
Stores data and program. RAM
has
8K
bytes
(64K
bits) capacity and contains
a self-control circuit.
Ram Map
LSI
ROM
RAM
CPU
(Main)
HD61747B20
113024 bits
1896 bits
CPU
(Sub)
HD61747B25
113024 bits
1896 bits
RAM
~
HM6264ALFP-50
65536 bits
TOTAL
226056 bits 69328 bits
I
nput
Buffer
Code Buffer
PH
POT
MFT
ST
P5T
P4T
P3T
P2T
P9T
P8T
P7T
P6T
OP
RAM
Variable
B
P9B
READ#No.
DATA#P
DATA
P
P#X
IN-
KEY
I
Address
P#
GOSUB STACK
DISP Buffer
xD
yD
P#
Varia-
ble
No
STEP
P#
I~aria-
Address
ble
No.
000
080
FOR
NEXT
-5-
I
P#
I~aria-)j
ble
No
P#
l~aria-..1
ble
No.
PASS
I
I
PRT I
DEFM IMODEI
Address k
j i
Users
Area
Communication Buffer
Variable check
I
$
FF I
100
180
Power Supply
VSSl
VRAM
VlrvV5
VDDl
VDD2
Power supply voltage
for
TC4071 BF.
Memory
used
to
keep the voltage
for
the RAM.
LCD drive voltages. Voltage
is
generated
by
connecting the external resistor
to
VDD2.
Power supply
for
the
CPU,
RAM and options.
Stays
VDDl
at power-on.
Goes
to
GND at power-off or APO (auto power-off).
-7-
LSI
(Pin
Functions)
IC1
I HD61747B20
IC2
,
HD61747B25
Pin No. Signal Name
In/Out
Function
1'\,,4
D1,2,4,8
In/Out
Data
in/out
(D1, D2, D3, D4)
5 INT
In
Interrupt
signal from
RAM
6'\,,18 KM'\"K1
In/Out
Key signal
for
keyboard
19
SW
In/Out
Switch signal. GND
at
switch
"OFF"
and
VDD1
at
switch
"ON".
20'\,,24
V5'\"V1
Out
Display voltage. Divided vol-
tage from VDD1.
25,26
PG2,PG1
Out,
In
CPU internal clock
27'\,,72 R15'\"R7
Out
Display signal
73
GND In GND
74
CE2
In/Out
Chip designating signal.
Select RAM
or
other
devices
75
CE1
In/Out
Select RAM
or
other
devices
76
VDD1
In Power source
77
VDD2
Out
VDD1
output
from
the
LSI.
VDD1
at
switch
"ON"
and
GND switch
"OFF".
78,
79
1/)1,1/)2
In/Out
Clock pulse
80
OP
In/Out
Operation
signal
~
~:e:
8 0 w
~ ~
b:
~
0:
~
ii
~ ~
~
o 0 U
U<:J
a1
> >
b1
c1
d1
e1
a2
b2
c2
d2
e2
a3
b3
c3
d3
e3
a4
b4
c4
N
.....
LO
O
.....
NM<::t
~~a:~~
o:o:o:a:a:~~<g:g~~
01
02
04
08
INT
KM
K12
K11
K10
Kg
K8
K7
K6
K5
K4
K3
K2
K1
SW
V5
V4
V3
V2
V1
IC4
,
MB64H193
37
36
100
02
106
03
ADO
04
107
E
AD1
S1
VSS
VSS
AD2
S2
AD10
B2
AD3
B1
DE
CSO
AD4
CS1
AD11
CS2
LD
coco
N
0
(J)
r--
0
co
en
""
M
12
0
0
00
0 0
s
(fJ (fJ
(fJ (fJ
« «
««
«
«
>
a:
U
U
U U
25
13
24
Pin No. Signal
Name
In/Out
Function
1,2
100,106
In/Out
Data
in/out
3
ADO
Out
Address
signal
4
107
In/Out
Data
in/out
5
ADl
Out
Address
signal
6
V55
In
Power source
7,8,9
AD2,
10,3
Out
Address signal
10
OE
Out
Output
enable
11'V18
AD4'VAD12
In/Out
Address
signal
19
VDD
In GND
20
RW
Out
Read/write
signal
22'V24
CS6'VCS3
Out
Ch
ip
enable
signal
25'V27
C52'VC50
-
NC
28,29
Bl,
B2
Out
Buzzer signal
30 52
In
GND
31
V55
In
V55
32
51
In
GND
33
E
-
NC
34'V37
D4'VDl
In/Out
Data
in/out
38
OP
In Operation
signal
39,40
C2,Cl
In
Clock pulse
41
VDD2
In
Power
sou
rce
42
CE
In Chip enable
43
VDD
In GND
44'V48 103'V105
In/Out
Data
in/out
-8-
IC3, HM6264ALFB-50
GND 14
Pin No. Signal Name
In/Out
Function
1
NC
-
NC
2'V10 A12'VAO
In Address signal
11'V13 1/01'V1/03
In/Out
Data signal
14
GND In VSS terminal
15'V19
1/04'V1/08
In/Out
Data signal
20
CE1
In Chip enable
21
A10
In/Out
Address signal
22
OE
Out
Output
enable
23'V25
A11,9,8
In/Out
Address signal
26
CE2
In
GND
27
RIW
In Read/write signal
28
VDD
In
GND
DISPLAY
Numbers and characters are displayed
in
5 x 7 dots.
Following
is
an explanation
of
a dot-matrix
LCD.
e12
c12
a12
e1
c1
a1
60606
60606
00000
00000
00000
Lower electrode
00000
00000-----------00000
00000
00000
00000
00000
09
0
9
0
09
0
9
0
d12
b12
d1
b1
R8-o0000
00000
R9--D0000
00000
RIO
-00000
Upper electrode
00000
Rl1--Q0000---
----00000
R12-o0000
00000
R13
-aoooa
00000
1"14
-00000
00000
"----------"Vr---------
Left-half 12 digits
e12 c12 a12
e1
c1
a1
~O~O~
do~o~
00000 00000
00000
Lower electrode
00000
00000---
----00000
00000
00000
00000 00000
O?O?O
090?0
d12
b12
d1
b1
00000
OOOOo-RO
00000
OOOOD--RI
00000
Upper electrode
0000D-R2
00000---
---OoOOcr-R3
00000
0000~R4
00000
OOOOo--RS
00000
0000CJ-R6
"--------
__
"V_-------~
Right-half 12 digits
e1
d1
c1
b1
a1
+++-t+-I-+++-++-+
__
- R0
--+++++++++-If+t-I+t--R1
--+++-++++++-1++-+++-R2
--+++-+++t+t-tt++H-
R3
--+++-+++-I+t-t+++H-RL.
-+++-+f++f++t+-t++--
RS
-++++H-++-H+t-H+--
R6
On
the
upper
electrode
of
the
LCD,
common
signals
RD'V
R6 and
R8'V
R14
are applied horizontally while
other
signals
al'Vel
to
a12'Ve12 are applied
vertically
on
the
lower electrodes as shown in above figures.
In
the
left figure,
the
upper-right
corner
of
the
dot
is
displayed when a vol-
tage difference exists between signals
RD
and
al.
The
CPU
outputs
the
dis-
play signals
to
the
LCD
display.
CPU
HD61747B2D
controls
the
1st
to
6th
and
13th
to
18th
digits
of
dis-
play, while HD61747B25 controls
the
7th
to
12th
and
19th
to
24th
digits.
-9-
-----~-----------------------------------------
TROUBLESHOOTING GUIDE
Symptom
Cause Solution
No
display
at
all. Weak batteris Replace
the
batteries.
Poor battery
contact
Clean
the
battery and
contact
spring.
Lift
the battery spring.
Peeled heat seal
Replace the heat seal.
Broken heat seal
Replace
the
heat seal.
LCD
(CA51-TS)
Replace the
LCD.
LSI
(HD61747B)
Replace
the
LSI.
A certain segment(s)
Peeled heat seal
Replace the heat seal.
cannot be displayed.
Broken heat seal Replace
the
heat seal.
LCD
(CA51-TS)
Replace
the
LCD.
LSI
(HD61747B)
Replace
the
LSI.
Calculation impossible.
LSI
(HD61747B)
Replace
the
LSI.
A certain
button
does
not
Poor key
contact
Celan the
contact
pad on the
PCB
and
the
function.
key
contact
rubber.
Broken
PC
line
Connect the
PC
line.
Peeled heat seal
Replace
the
heat seal.
LSI
(HD61747B)
Replace
the
LSI.
-10-
-----------~--
-----------
Test Program
Notes:
1. After typing
in
the
programs below, save
the
programs
to
a cassette
tape
for future use.
2.
Memory
and
printer check programs
cannot
be executed
at
the
same time because
of
a limited
memory capacity.
Printer check program
"
MODE
7
PRINT"
*
*PC-
6 CHECK**
";
30
PRINT
"ABCDEFGH
IJKLMNOPQRSTUVW
XYZ";
40
PRINT
"abcdefgh
ijklmnopqrstuvw
xyz";
50
PRINT
"0.123456
789";
60
PRINT
"%'@¥[]
&+
+-+oo
...
x-;-."·
...
"I·
o
-l:SiJJYo";
70
PRINT
"!#$?\«~
>~t()*/+-Err";
FOR
A=l
TO
28
PRINT
"8";
NEXT
A
PRINT "
END-
MODE
8
80
90
100
110
120
Ready
PI
LIST
10
20
Ready
PI
LIST
5 A=0
7 A=A+1
10
FOR
B=l
TO
C
20
IF
D(B)~B
THEN
100
30
NEXT
B
40
IF
$="ABCDEFGHI
JKLMNOPQRSTUVWX
YZ"
THEN
100
50
IF
A=5
THEN
110
60
PRINT
A;:
GOTO
7
100
PRINT
"CHECK**N
G**";:
BEEP
1:
BEEP
0:
GOTO
III
101
PRINT
"A=";A;
110
PRINT
"CHECK**O
K**";:
BEEP
1:
BEEP 1
III
PRINT
"A=";A;:
END
90
GOTO
#1
*".
,
Memory check program
Ready
p0
LIST
10
CLEAR
20
C=904
25
DEFM
C
30
FOR
B=l
TO
C
40
D(B)=B
50
NEXT
B
60
$="ABCDEFGHIJKL
MNOPQRSTUVWXYZ"
70
BEEP
1:
BEEP 1
80
PRINT
"INPUT
OK
-11
-
Program SAVE,
LOAD
and
MEMORY
System:
Operation:
IpC61
+
26-3651
or
PC-5
cable
(26-3671 )
+
ICMTI
(1)
PW
SW
ON
(2) CMT
PLAY
MODE
(3)
[§J
[L~ADI
IEXE!
END
(4)
PW
SW
OFF
(5)
PW
SW
ON
(6) [II [!]
LOAD
BUZZER RUN DEG
Ready
P0
Take
out
the 26-3651
+ CMT
BUZZER RUN
DEG
Ready
P0
BUZZER RUN DEG
DEFM
INPUT
OK*
(Buzzer sound)
BUZZER RUN
DEG
DEFM
INPUT
OK*l
BUZZER RUN DEG DEFM
INPUT
OK*
1 2
BUZZER RUN
DEG
DEFM
INPUT
OK*
1 2 3
BUZZER RUN
DEG
DEFM
INPUT
OK*
1 2 3 4
BUZZER RUN DEG DEFM
INPUT
OK*
1 2 3
4CHECK**OK**
A=5 (Buzzer sound) OK
(7) IBRKI
BUZZER RUN DEG DEFM
INPUT
OK*
CHECK**NG**
A=l
-12-
(Buzzer sound)
NG
Printer check
System:
I
pC-61
+
26-3651
or
PC-5
cable
(26-3671 )
+
26-3652
PC-4 Printer
(1) PC-6
PW
SW
ON.
(2) S 2
Print sample:
READY
P0
**PC-6
CHECK**
ABCDEFGHIJKLMNOPQRST
UVWXYZabcdefghijklmn
opqrstuvwxyz0.123456
789%'@¥[]&+~+ODAX~
••
••
~I·O
EQUy6!#$?\«~
>~t()*7+-~TI88888888
8888888888888888888
-END-
-13-
Operation Check
1.
When mis-operation occurs, return
to
the
nearest * mark and operate from
the
* mark.
2. When connecting
the
printer and cassette interface, be sure
to
turn
off
the
power switch.
Operation
Read
Out
/RESETl
BUZZER
RUN DEG
Ready P0
*IMODEI
1
BUZZER
WRT DEG
7520
P:,¢,-123456789
*IMODEj
~
BUZZER
RUN DEG
Ready
P0
QWERTYUIOP
BUZZER
RUN
DEG
QWERTYUIOP
'..l..'
,
I'
*!BRKj
ASDFGHJKL
=
~
BUZZER
EXT
RUN
DEG
ASDFGHJKL
=,~,
,
I'
*IBRKI
ZXCVBNM;
: ,
IspcI
BUZZER
EXT
RUN
DEG
lxcvbnm'
:
'-2..:'
, I
I'
BUZZER
EXT
RUN
DEG
[§J-
-
~<.
xcvbnm;
: ,
BUZZER
EXT
RUN
DEG
[§J-
lxcvbnm;
: ,
,I,
-
'I'
BUZZER
EXT
RUN DEG
ICLS
I
• I /
-
'I'
-14-
Operation
*!BRK!
0.123+456-789*9/3
IEXEI
*IBRKI
IE
( ) t
~
......
*!BRK]
lM!Jlhypl~
Icoslltanl
~~IEXpl
o M [DEGdJANS!
00
110
x
l
*IBRKI
1.2 ISTATI
*IBRKI
[ill~
[TI!EXE I
Read
Out
BUZZER EXT
RUN
DEG
-1910.877
BUZZER EXT
RUN
DEG
(Check
that
the cursor moves.)
E(
)t'~
, "
E(
)~
'I'
BUZZER EXT
RUN
DEG
UR
DEG
(-1910.877 t 2 t
310t:
~~
BUZZER EXT
RUN
DEG
STAT1.2,0
BUZZER EXT
RUN
DEG
90
BUZZER EXT
RUN
DEG
90 E 00
*~IEXTI
A=B*C[llij
-15-
BUZZER
" ,
'I'
RUN
DEG
Operation
Read
Out
ICALCI
BUZZER
RUN DEG
B ?
1231EXEI
BUZZER
RUN DEG
C?
456!EXE!
BUZZER
RUN DEG
STOP
A = 56088
IOUTI
BUZZER
RUN DEG
STOP
A=B*C
*[MODE!0
BUZZER
RUN
DEG
Ready
P0
*IMODE!
•
RUN DEG
Ready
P0
*!MODE!
•
BUZZER
RUN DEG
TRACEON
IMODEl 2
Ready P0
*!MODEI
3
BUZZER
RUN RAD
!MODEI 5
Ready P0
*!MODE!
6
BUZZER
RUN
GRA
Ready
P0
-16
-
._--._------------
---_.--_.
Operation
Read
Out
*!MODE
[ 7 BUZZER
RUN GRA
PRT
ON
Ready
P0
!MEMOlm
*]MODE
18
BUZZER
GRA
1
, I ,
]MODE
19
-
, , "
QW
!EXEI
BUZZER
GRA
!
MEMO
IL1
..
•
EDIT
" ,
Q-W-
, "
" ,
-
, I ,
BUZZER
GRA
!MEMOIITNl
1
- IEDITI
]INS[
Q,
"W
-
, , "
1f0lMQ]
llliJ
1
E
[§]
IINSI
BUZZER
GRA
QE"
1/
IEDITI
-
/1
'
IEXE I
IMEMOI[&]BUZZER
GRA
1
QE
[MfMQ]
llliJ
IMEMOj
BUZZER
GRA
2
", /
-
/ I "
!Asmbl[
BUZZER
IASMBLI
Asmbl/Source/ca1
*!BRK!
BUZZER
RUN GRA
Ready
P0
-17
-
----
-----------
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-
PCB
ASSEMBLY
VI
EW
TOP
VIEW
TOP
VIEW
-19-
PARTS LIST
Electrical
Parts
Ref. No.
Description
RS
Part No.
Mfr's Part No.
CAPACITORS
Cl'VC4
Chip, Ceramic, 100pF, 25V, ±5%, CM21CH101J25V ACF-1466 28907311
C5'VC10
Chip, Ceramic, O.lttF, 15V, +100%, CM21YV104P15V ACF-7347 71032167
Cll,
C12
Electrolytic, 22ttF, 10V, ±20%, CE04C-1A220MS7
CE·226MCBA
28047223
C13 Electrolytic, 1
OOttF,
1
OV,
±20%, CE04C-l A
101
!\liS
CE-107MCBA 28041047
ICs
ICl
LSI,
CPU,
HD61747B20
MX-7273
20018364
IC2
LSI,
CPU,
HD61747B25
MX-7274
20018801
IC3
LSI, RAM, HM6264ALFP-50 MX-7275 20011149
IC4
LSI, MB64H193 MX-7276 20030453
IC5
IC, TC4071BF MX-4245
21004359
PRINTED
CIRCUIT
BOARD ASSEMBLIES
PCl
Assembly,
PCB-G707-1
82636701
PC2
Assembly, PCB-G707-2
82636702
RESISTORS
Rl'VR9
Chip, Ruthenium, 3.3 Kohm, 1/8W, ±5%, CR32-108-332J-T-TP
ND·0230EBN
27930620
Rl0
Chip, Ruthenium, 12 Kohm, 1/8W, ±5%, CR32-108-123J-T-TP
ND-0288EBN
27930638
Rll
Chip, Ruthenium, 68 Kohm, 1/8W, ±2%, CR32-108-683G-T-TP ND-0354CBN
27904530
R12
Chip, Ruthenium, 220 ohm, 1/8W, ±10%, CR32-108-221K-T-TP
ND-0149FBN
27904734
R13'VR16 Chip, Ruthenium, 3.9 Kohm, 1/8W, ±5%, CR32-108-392J-T-TP
ND-0237EBN
27903835
R17'VR21
Chip, Ruthenium, 10 Kohm, 1/8W, ±2%, CR32-108-103G-T-TP
ND-0281CBN
27930603
R22
Chip, Ruthenium, 22 Kohm, 1/8W, ±5%, CR32-108-223J-T-TP ND-0311EBN
27903740
R23
Chip, Ruthenium, 2.2 Mohm, 1/8W, ±5%, CR32-108-225J-T-TP
ND-0454EBN
27904761
R24
Chip, Ruthenium, 100 ohm, 1/8W, ±10%, CR32-108-101 K-T-TP
ND-0132FBN
27904629
MISCELLANEOUS
D1'VD3 Diode, 1S1588, silicon
DX-0273
23003031
VRl
Volume,
for
contrast, 20 Kohm, EVL-AHAAOOB24
AP-7004
27709486
-20-
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27

Tandy PC-6 User manual

Tandy
Brand
Tandy
Model
PC-6
Type
User manual

Tandy PC-6 is a pocket scientific computer. It is a powerful tool that can be used to perform a variety of mathematical and scientific calculations. The PC-6 is also a programmable computer, which means that you can write your own programs to perform specific tasks.

The PC-6 has a number of features that make it ideal for students, engineers, and other professionals who need to perform complex calculations. These features include:

  • A large, easy-to-read display
  • A full set of mathematical and scientific functions
  • The ability to store and recall programs
  • A built-in clock and calendar

The PC-6 is also very easy to use. The keyboard is well-organized and the menus are clear and concise. The PC-6 also comes with a comprehensive user manual that will help you get started.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents