Radio Shack Hardware Manual PC 6 Service 19xx Tandy Text
User Manual: manual pdf -FilePursuit
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Catalog Number: 26-3672
CUSTOM MANUFACTURED FOR RADIO SHACK, A DIVISION OF TANDY CORPORATION
CONTENTS
PAGE
SPECIFICATIONS
How To Open Upper Case
THEORY OF OPERATION
3
.
3
.
4
Block Diagram
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
SCHEMATIC DIAGRAM
23
24
Main Block
Keyboard
Display
m
.
24
25
26
.
SPECIFICATIONS
Display
Method
5x7
dot-matrix crystal
Display
24-digit, dot-matrix liquid-crystal display
Calculation Range
±10"
Program System
Stored System
Program Language
BASIC
Number
26 fixed
RAM
of Variables
±9.999999999 x 10"
-v
variables, exclusive character variable
7520 bytes (system
Capacity
Maximum
Program Areas
672
area:
and array variables
bytes)
of 10 (P0 through P9)
Number
of Stacks
Subroutine
FOR-v NEXT
8
4
levels
levels
LOOP
12
Operators
levels
Power Supply
2 lithium batteries (CR-2032) for main frame
1 lithium battery (CR-1220) for memory backup
Power Consumption
Maximum 0.07W
Battery Life
1)
Continuous program execution: approximately 85 hours
2)
Continuous display of 5555555555
hours or 5.5 months when unit
NOTE:
1
is
at 68° F (20°C):
used
1
approximately 200
hour per day
hour includes 10 minutes of condition
1)
and 50 minutes of con-
dition 2)
Memory
Approximately 2 years (with main batteries
installed)
protection
battery
Auto Power-off
Approximately 6 minutes
Ambient Temperature
32°Fto104°F (0°Cto40°C)
Dimensions
3/4"H x 5-5/8"W x 2-3/4"D (18
Weight
5.8 oz (165
How To Open
g),
mm x
142
mm x 71
mm)
including batteries
Upper Case
1
Insert the tweezers into the
2.
Move tweezers
arrow
in
3-
case.
gently in the direction indicated by the
the figure below.
Tweezers
back of the upper
THEORY OF OPERATION
Block Diagram
DOT-MATRIX DISPLAY
5x7 dots,
77 ts:
ayva12, d7^cl12
b7M)12, 67^12
07^012, R(rvR14
24
digits
J
I
7S
aTva6, d1^d6
bl^be, el'Vee
Km1^Km12
Ks2'VKs10
CPU IC2
HD61747B25
KEYBOARD
CPU
A
IC1
KEYBOARD
HD61747B20\r
D1-D8,OP,CE,C1,C2
I—\ GATE
) IC4
—/
ARRAY /
MB64H193
\ RAM IC3
/ HM6264ALFP
\
AD0-AD12
CS3-CS6
IO0-IO7
OPTIONS
7\
26-3671
26-3671
26-3651
ii
CMT
26-3652
NOTE: Only one of
26-3652
2 options can be connected at a time.
-4
LSI
CPU
HD61747B20
Main
BASIC
Key
control,
signal
input/output (lower keyboard), 1st to 6th digits and
13th to 18th digits display control.
Sub CPU
Calculation, I/O control, key signal
HD61747B25
input/output (upper keyboard), 7th to
12th digits and 19th to 24th digits display control.
Gate Array
MB64H193
Interface between
CPU and RAM,
buzzer control.
RAM
Stores data and program.
HM6264ALFP-50,
RAM
has
8K
bytes (64K bits) capacity and contains
a self-control circuit.
RAM
ROM
LSI
CPU (Main)
HD61747B20
113024
bits
1896
bits
CPU (Sub)
HD61747B25
113024
bits
1896
bits
65536
bits
69328
bits
RAM
HM6264ALFP-50
TOTAL
226056
bits
Ram Map
000
100
P#
ble
No
Input Buffer
P#
Variable No.
PRT
PASS
Code Buffer
DEFM
MODE
Address
P1T
POT
MFT
ST
P5T
P4T
P3T
P2T
P9T
P8T
P7T
P6T
OP
RAM
Variable
B
DATA#P
DATA
P
READ#No.
Users Area
IN-
Communication Buffer
KEY
Variable check
P#
GOSUB STAC K
DISP Buffer
xD
FF
YD
P#
Variable No.
FOR NEXT
STEP
Variable No.
j
P9B
P#X
Address
P#
k
080
Address
-5-
180
.
Buzzer Control Circuit
There are 3 ways to operate the buzzer:
Key
input,
BEEP
0,
and BEEP
Mode
BEEPO
Frequency
0.9
Time
110 msec.
1
BEEP
kHz
Key Input
1
4.55 kHz
4.55 kHz
110 msec.
11msec.
B2
B1
B
MB64H193
B
-uinr
Interrupt Circuit
•
when VDD2
Interrupt circuit for the clock pulse
VDD2
drops.
1
When
2.
PG2 through
the IC and 26th pin of the
3.
When VDD2
drops, the output of the IC becomes
the power
is
on,
is
"L"
level.
CPU
receive
PG2.
"GND"
level
and the
CPU
does not receive
PG2.
^Kk
-J
PG1
PG2
HD61747B25
VDD2
Interrupt circuit for the voltage of the Gate Array and options
when VDD2 and SW
VDD2 and SW is "L" level.
VDD2 for Gate Array and VOD4 is also "L" level.
When VDD2 drops, VDD2 for Gate Array and VDD4
"GND"
1.
2.
3.
When
the power
ration of the
is
RAM
on,
becomes
and options.
SW
VDD4
VDD2(fromlC4)
VDD2(fromlC2)
Keyboard
HD61747B25
controls the upper keyboard.
Ks2
HD61747B25*
Ks3^Ks8
Ks9, KslO
HD61747B20 controls
drop.
Upper
Keyboard
the lower keyboard.
HD61747B20^
Km1^Km4
Km5^Km10
Km11, Km12
Lower
Keyboard
level
and stops the op-
Power Supply
VSS1
Power supply voltage for TC4071BF.
VRAM
Memory used
VK V5
LCD
VDD1
Power supply for the CPU,
VDD2
Stays
to keep the voltage for the
drive voltages. Voltage
VDD1
at power-on.
is
RAM.
generated by connecting the external resistor to
RAM
VDD2.
and options.
Goes to
GND
at power-off or
-7-
APO
(auto power-off).
LSI
(Pin
Functions)
IC1,HD61747B20
IC2, HD61747B25
Pin No.
!is|S|K{SiiS}S{Sls|dg|SjS|:
1 1 ] i 11 1 1 A A A A A
cm
r- ,_
LU
^.^ Q O
(mq
UJ2
o
r^
CC CC
r- CN
CC DC
CO
CC
^t
CC
LD
CC
CD
DC
a1
>
D1
D2
1_U_
12
13
14
61
,
a2
K12
b2
K11
c2
,
c3
53
52
,
b4
c4
47
K1
SW
d4
V5
21
V4
22
V3
23
-< V2
e4
:
a5
r
b5
_
d ^
IC4,
50
,
LD
cd
Cslj
CNJ CM
r-.
I
OT
CC
DC DC
CC
signal.
GND at switch
PG2, PG1
Out, In
27V72
R15'\>R7
Out
73
GND
In
74
CE2
CPU
internal clock
Display signal
GND
In/Out Chip designating
46
45
44
43
75
CE1
76
VDD1
In
77
VDD2
Out
In/Out Select
Power source
VDD1
VDD1
GND
78,79
01,02
80
OP
signal.
RAM or other devices
RAM or other devices
In/Out
output from the LSI.
at switch
"ON"
"OFF".
switch
Clock pulse
In/Out Operation signal
iMsWalsIsWfiWslsl
CO
CN
MB64H193
Pin No.
1,
37
48
•^cncoCiujq<-cncl
U
u U O Q
O
_ O O O
_ O
_ Q
>
36
2
Signal
Name
IO0, I06
Function
In/Out
In/Out
Data in/out
3
ADO
Out
4
I07
In/Out
5
AD1
Out
Address signal
Power source
Address signal
Data in/out
IO0
D2
6
VSS
In
106
D3
D4
7,8,9
AD2, 10,3
Out
Address signal
10
OE
Out
Output enable
E
11M8
AD4'VAD12
In/Out
19
20
VDD
RW
Out
Read/write signal
22^24
CS6^CS3
Out
Chip enable
25^27
CS2^CS0
-
28,29
81, B2
Out
ADO
107
AD1
VSS
SI
VSS
AD2
AD10
S2
AD3
OE
AD4
B1
B2
CS0
CS1
AD11
CS2
ID
O)
©
00
Q Q O Q
< < < <
12
13
Q
>
CC
LD
CO
-3"
CO
O O O
CO
CO
CJ
25
24
-8-
In
Address
signal
GND
signal
NC
Buzzer signal
30
S2
In
GND
31
VSS
In
VSS
S1
In
GND
33
E
-
NC
34^37
D4MD1
In/Out
38
OP
In
Operation signal
39,40
C2,C1
In
Clock pulse
41
VDD2
In
Power source
42
CE
In
Chip enable
43
VDD
In
GND
44^48
103^105
In/Out
32
CD
CO
at switch
from VDD1.
Select
41
d5
DC CC
keyboard
Display voltage. Divided vol-
42
c5
<*
Out
25,26
51
49
48
CN CO
signal for
^
b3
*-
V5M/1
tage
54
a3
O
Key
In/Out Switch
,55
e2
CN <- LD
CO
(J
q_ q_ DC CC
SW
56
3
VI
19
2CV24
57
a4
24
In/Out
,
r
20
KM'VKI
RAM
58
r
19
6^18
Interrupt signal from
"ON".
e3
17
In
59
d3
16
In/Out
INT
"OFF" and VDD1
K4
K3
K2
15
Data in/out (D1, D2, D3, D4)
01,2,4,8
5
,
d2
K10
K9
K8
K7
K6
K5
Function
60
e1
KM
In/Out
,
d1
INT
10
62
cl
D4
D8
7 _
,
Name
Tv4
64
63
b1
Signal
Data in/out
Data in/out
-
and
IC3,
—
—
—
HM6264ALFB-50
Pin No.
NC
A i2
A7
Function
In/Out
NC
-
NC
2M0
A12^A0
In
Address
11M3
I/01M/03
In/Out
14
GND
In
15^19
1/04^1/08
In/Out
20
CE1
In
21
A10
In/Out
TFJi/Os
22
OE
Out
Tili/07
23^25
A11,9,8
In/Out
26
CE2
In
GND
27
R/W
In
Read/write signal
28
VDD
In
GND
|
[X
|
R/W
27
|
~26]cE2
3
A 6 r~4
25
A
|
A8
A9
5
|
5
24
A4
|
6
23]
An
22~[OE
A2
21~[Aiq
8
1
~2o"|CE1
_9
Aq|Tq
l/Oi|
signal
Data signal
VSS
terminal
|
A 3 |~T
11
Q7
i/o 2
Name
1
28 Vcc
1
|
Signal
Data signal
Chip enable
Address
signal
Output enable
Address
TT]i/06
signal
!/0 3 [T3
jF]l/04
gnd| 14
'
I
DISPLAY
Numbers and
Following
is
characters are displayed in 5 x 7 dots.
an explanation of a dot-matrix LCD.
e12 c12 a12
e1
QODOQ
oaaaa
aaoaa
aaaoQ
oaaaa
aaaaa
Lower electrode
e12 c12 a12
a1
d1
d12 b12
——aaaaa
aaaaa
R8—aaaaa
——aaaaa—
aaaaa
Rio
Upper electrode
R11
r 12
——aoaaa
aaaaa
R13
pu.
atpacpa
dl cl bl a1
On
aaaaa
aaaaa
aaaaa
aaaaaaaaaa
aaaaa
aaaaa
the upper electrode of the LCD,
common
-RI
vertically
MHH3-B
-R2
In the left figure, the upper-right
£3-E3-G-E3-B
-R3
£3~EH3-E3-B
-R4
T
—
Right-half 12 digits
are applied horizontally while other signals
on the lower electrodes as shown
LCD
signals
RCKR6
and
a1^e1 to a12^e12
in
above
corner of the dot
tage difference exists between signals
play signals to the
-R6
aaaaa— ro
aaaaa ri
aaaaa— R2
-aaaaa R3
aaaaa— rl
aaaaa rs
aaaaa—ns
Upper electrode
-RO
-R5
b1
d1
Left-half 12 digits
e1
aaaaa
aaaaa
-aaaaa
aaaaa
aaaaa
Lower electrode
d12 b12
aaaaa
aaaaa
aaaaa
-aaaaa
aaaaa
aaaaa
aaaaa
a1
rJiaAai
atpacpa
b1
d
e1
iaaao
aaaaa
aaaaa
aaaaa
aaaaa
aaaaa
aaaaa
aaaaa
aaaaa
-aaaaa
aaaaa
aaaaa
acparpa
acpacpa
R9
d
RO and
a1.
RB'vRM
are applied
figures.
is
displayed
when
a vol-
The CPU outputs the
dis-
display.
CPU HD61747B20 controls the 1st to 6th and 13th to 18th digits of dis24th digits.
play, while HD61747B25 controls the 7th to 12th and 19th to
-9-
TROUBLESHOOTING GUIDE
No display
at
all.
Solution
Cause
Symptom
Weak
Replace the batteries.
batteris
Poor battery contact
Clean the battery and contact spring.
Lift the battery spring.
Peeled heat seal
Replace the heat
seal.
Broken heat
Replace the heat
seal.
seal
LCD(CA51-TS)
LSI
A certain segment(s)
(HD61747B)
Replace the LCD.
Replace the LSI.
Peeled heat seal
Replace the heat
seal.
Broken heat
Replace the heat
seal.
cannot be displayed.
seal
LCD (CA51-TS)
Replace the LCD.
LSI
(HD61747B)
Replace the LSI.
Calculation impossible.
LSI
(HD61747B)
Replace the LSI.
A certain
Poor key contact
button does not
Celan the contact pad on the
key contact rubber.
function.
Broken PC
Connect the PC
line
Peeled heat seal
LSI
(HD61747B)
-10-
line.
Replace the heat
Replace the LSI.
seal.
PCB and
the
Test Program
Notes:
1
After typing
2.
Memory and
memory
in
the programs below, save the programs to a cassette tape for future use.
printer check programs cannot be executed at the
same time because of
capacity.
Printer check
Memory check program
program
Ready PI
LIST
10 MODE 7
**PC20 PRINT "
6 CHECK**
30 PRINT "ABCDEFGH
IJKLMNOPQRSTUVW
XYZ";
40 PRINT "abcdefgh
ijklmnopqrstuvw
xyz"
50 PRINT "0.123456
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 $="ABCDEFGHIJKL
MNOPQRSTUVWXYZ"
70 BEEP 1: BEEP 1
80 PRINT "INPUT OK
;
789";
60 PRINT "%' @¥[]
90 GOTO #1
o*x ^ ****
n
-EfiUY<5 ;
4<->-0
&+°
*
'
70 PRINT "!#$?\<<>
>^t () */+- £ ^»;
A=l TO 28
FOR
80
"8";
PRINT
90
Ready PI
LIST
5 A=0
7 A=A+1
10 FOR B=l TO C
20 IF D(B)#B THEN
.
100 NEXT A
110 PRINT "
END120 MODE
100
30 NEXT B
40 IF $="ABCDEFGHI
JKLMNOPQRSTUVWX
YZ" THEN 100
50 IF A=5 THEN 110
GOTO
60 PRINT A;
:
7
100 PRINT "CHECK* *N
BEEP 1:
G**";
BEEP 0: GOTO 111
101 PRINT "A=";A;
110 PRINT "CHECK**0
BEEP 1:
K**"
:
;
::
:
BEEP 1
111 PRINT "A=";A;
END
-11 -
8
a limited
Program SAVE,
LOAD
and
MEMORY
System:
26-3651
PC6
or PC-5
+
+
cable
CMT
(26-3671)
Operation:
(1)
(2)
(3)
PW SW ON
,
CMT PLAY MODE
LOAD
S
EXE
END
LOAD
BUZZER RUN DEG
Ready P0
(4)
PW SW OFF
Take out the 26-3651 +
(5)
PW SW ON
BUZZER RUN DEG
CMT
Ready P0
(6)
S
BUZZER RUN DEG DEFM
INPUT OK*
(Buzzer sound)
BUZZER RUN DEG DEFM
INPUT OK*1
BUZZER RUN DEG DEFM
INPUT OK*
1
2
BUZZER RUN DEG DEFM
INPUT OK* 1 2 3
BUZZER RUN DEG DEFM
INPUT OK*
12
3 4
BUZZER RUN DEG DEFM
INPUT OK* 1 2 3 4CHECK**OK**A=5
BUZZER RUN DEG DEFM
INPUT OK* CHECK**NG**A=1
(7)
IBRK
-12-
(Buzzer sound)
(Buzzer sound)
OK
NG
Printer check
System:
26-3651
PC-6
or PC-5
+
+
26-3652
PC-4 Printer
cable
(26-3671)
(1)
PC-6
(2)
S 2
F
>W
SW
N.
RE/
Print sample:
**PC-6 CHECK**
ABCDEFGHIJKLMNOPQRST
UVWXYZabcdefghijklmn
opqrstuvwxyz0. 123456
789% @¥[]&^+ooaXt**
,
>M ()*/+-£TT88888888
8888888888888888888
-END-
-13-
Operation Check
1.
When
2.
When
mis-operation occurs, return to the nearest*
mark and operate from the * mark
connecting the printer and cassette interface,
be sure to turn off the power switch.
Operation
Read Out
(RESET
RUN DEG
BUZZER
Ready P0
*|MODEj
1
BUZZER
WRJ DEG
P^: 123456789
*|MODEl
RUN DEG
BUZZER
Ready P0
QWERTYUIOP
*FbRK] ASDFGHJKL- [EXT]
BUZZER
RUN DEG
QWERTYUIOP
)~[
BUZZER EXT RUN DEG
ASDFGHJKL
*[BRK]
ZXCVBNM;:,
= -'
BUZZER EXT RUN DEG
(SPCl
zxcvbnm;
—
:
'
BUZZER EXT RUN DEG
[s>
z
-
-
xcvbnm;
,
BUZZER EXT RUN DEG
®-
zxcvbnm;
|CLSJ
:
:
,
"-L'
BUZZER EXTRUN
DEG
'
-14-
t
\
7520
Read Out
Operation
•
iBRKl
0.123+456-789*9/3
BUZZER EXT RUN DEG
-1910.877
BUZZER EXT RUN DEG
(Check that the cursor moves.
• BRK
e(
E(
)t;-r{
)t
• BRK
|&F^ [hypl[sinl[cosl [tan
BUZZER EXT RUN DEG
UR DEG
(-1910.877
t 2
t310f
tog)[in|[EXP
5j [Vj
2
x
x
3
1
deg(1 |ans
10*
BUZZER EXT RUISi DEG
• BRK
1.2
STAT 1.2,0
STAT
BUZZER EXT RUN DEG
• BRIO
ISllsinlllllEXEl
90
RUN DEG
BUZZER EXT
ENG
90
•
E
00
BUZZER
IbrkIIextI
a = b*c[jn]
15-
RUN DEG
Operation
Read Out
BUZZER
ICALCl
RUN DEG
B?
BUZZER
123 EXE
RUN DEG
C?
BUZZER
456 EXE
A=
A
• ImodeI
=
RUN DEG
STOP
B*C
BUZZER
o
STOP
56088
BUZZER
WJT
RUN DEG
RUN DEG
Ready P0
• WIODE
RUN DEG
•
Ready P0
• IMODEl
•
BUZZER
iMODEl 2
• IMODEl
Ready P0
3
BUZZER
iMODEl 5
Ready P0
• MODE]
RUN DEG
6
BUZZER
Ready P0
16
RUN RAD
RUN GRA
TRACEON
Read Out
Operation
• MODE
BUZZER
7
RUN GRA
PRT
ON
Ready P0
• MODE
BUZZER
8
•
(MODE 9
Q W
itKiT
i
|MEMO|^
1
"^
1
GRA
IMEMOI™^
1
BUZZER
GRA
iMEMOl^^
1
BUZZER
QE m /
GRA
[MEMOl^^
y
BUZZER
GRA
|MEMO|^
1
GRA
iMEMOl^
2
BUZZER
|EXE|
GRA
Q -Ws
1
^
INS
E |SI||NS|
|EXE|
QE
BUZZER
|MEMO|
/
1
^
BUZZER
Asmbl
|ASMBL1
Asmbl /Source /ca1
BUZZER
• BRK
Ready P0
-17
RUN GRA
Operation
IMODE1
Read Out
9
IMEMOI
RUN GRA
BUZZER
[is] [bsI
Ready P0
1EXE1
JMODEl
• iMODEl
1
10 BEEP
1
BUZZER
EXE
20[|]D
10
10
BEEP
20
• IMODEl
GOTO
BUZZER
(buzzer sound)
ISTOPI
BUZZER
OFF/ON
Repeat 3 times.
WRT GRA
7509
10
[Sj
POWER SW
7515
1
BUZZER
IEXEI
WRT GRA
RUN
GRA
RUN GRA
Display must disappear.
Turn the contrast volume.
Display should be
The
-18-
"Ready P0."
display contrast
must change.
STOP
PCB ASSEMBLY VIEW
TOP VIEW
TOP VIEW
-19-
PARTS LIST
Electrical Parts
Ref. No.
RSPart No.
Description
Mfr's Part No.
CAPACITORS
CTVC4
Chip, Ceramic, 100pF, 25V,
±5%, CM21CH101J25V
C5^C10
Chip, Ceramic, O.ljuF, 15V, +100%,
C11,C12
Electrolytic, 22juF,
C13
28907311
ACF-7347
71032167
A220MS7
CE-226MCBA
28047223
MS
CE-107MCBA
28041047
CM21YV104P15V
10V, ±20%, CE04C-1
Electrolytic, 100juF,
ACF-1466
10V, ±20%, CE04C-1A1 01
ICs
IC1
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,
MX-4245
21004359
TC4071BF
PRIN-FED CIRCUIT
BOARD ASSEMBLIES
PC1
Assembly, PCB-G707-1
82636701
PC2
Assembly, PCB-G707-2
82636702
RESISTORS
RT\/R9
Chip, Ruthenium, 3.3
R10
Chip, Ruthenium, 12
R11
Chip, Ruthenium, 68
R12
Chip, Ruthenium,
ND-0230EBN
27930620
Kohm, 1/8W, ±5%, CR32-108-123J-T-TP
ND-0288EBN
27930638
Kohm, 1/8W, ±2%, CR32-108-683G-T-TP
ND-0354CBN
27904530
220 ohm, 1/8W, ±10%, CR32-1 08-221 K-T-TP ND-0149FBN
27904734
Kohm, 1/8W, ±5%, CR32-108-332J-T-TP
R13^R16
Chip, Ruthenium, 3.9
Kohm, 1/8W, ±5%, CR32-108-392J-T-TP
ND-0237EBN
27903835
R17^R21
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^D3
VR1
Diode, 1S1 588, silicon
DX-0273
23003031
Volume, for contrast, 20 Kohm, EVL-AHAA00B24
AP-7004
27709486
-20-
Mechanical Parts
RS
Description
Ret. No.
Part No.
Mfr's Part No.
LCD,CA51-TS
AL-1020
33310552
Connector, 126D-019-12S04
AJ-7306
35113639
P spring, A33138A-1
ARB-7642
63258131
Seal, Heat,
T-07-12
Seal, Insulation, for heat seal,
A47070-8
AHC-0107
56005846
AHC-0344
63416110
63478850
Reinforcement, for LCD, C46480-1
Plate,
63415920
Tape, Adhesive, for LCD, A43613-5
Tape, Adhesive, for
LCD
63375130
reinforcement plate, A45344-8
Connector, Non-direction, A46359-1
AJ-4025
63354990
Sheet, Keyboard, C3473-5
AHC-0346
82636721
Tape, Adhesive, for
PCB
63424150
reinforcement plate
AHC-0345
63415991
Assembly, Film, keyboard, C3769A-1
AK-0518
63471021
Film, Keyboard, C3768-1
AHC-0347
63471030
Reinforcement, for PCB-G707-1
Plate,
,
C3474A-1
63505660
Cushion, for LCD,C41409-1
Seal, Heat,
PCB-G7Q7-1 to PCB-G707-2, CAX-12-3
Seal, Insulation, for heat seal of
PCB
AHC-0348
56006320
AHC-0349
63471010
Seal, Insulation, for
upper keyboard film
AHC-0350
63470990
Seal, Insulation, for
lower keyboard film
AHC-0351
63471000
ART-0278
63458880
Plate, Shield, for
Seal, Blind, for
volume
63471050
P spring, C41 076-1
Seal, Insulation, for battery (non-repairable)
Seal, Insulation, for
Buzzer,
RAM
pack (non-repairable)
AB-7002
EFB-S55C41AV1
32401627
Tape, Adhesive, for buzzer, A45381-1
63304750
Tape, Adhesive, for keyboard sheet, A44646-1
63275120
Holder, for PCB-G707-1, C2373-1
63470730
Plate, Shield,
63415930
C3500-1
Window (Tandy)
82637403
Tape, Adhesive, for window, C4586A-1
63415891
Case, Upper, for display unit, C1 141-5
AZ-0109
82636704
Case, Lower, for display unit (Tandy), C1 142-1
Plate,
Knob,
Name (Tandy)
Slide,
(non-repairable)
Spring, Switch contact,
A46683-1
Common, C3480-1
Film,
9
Spacer, C3479-1
Set,
63416351
C3499A-1
8
63470460
Keytop (Tandy)
-21-
RB-6256
63353610
AHC-0111
63415950
AHC-0352
63415960
AHC-0353
82636705
Ref. No.
10
Description
RS
CR1220, A35803-1
Holder, Battery, for
Spring, Battery contact (-), for
CR1220, A35801-1
Part No.
AB-0623
63349650
AB-0621
63349890
Spring, Battery contact (+),
CR1220, A35800-1
AB-0622
63349900
Seal, Insulation, for battery
(CR1220), A46472-1
AHC-0354
63349910
11
Holder, for PCB-G707-2, C1251-1
12
Holder, Battery, for
63470550
CR2032, A35802-1
Spring, Battery contact
(-),
CR2032
for
Spring, Battery contact (+, -), for
Spring, Battery contact
(+),
Seal, Insulation, for battery
for
CR2032
CR2032
(CR-2032), A45154-1
Seal, Insulation, for battery holder,
Plate, Shield, for connector,
A46473-1
C4609-1
Cap, Connector, C4615-1
Pin, Spring, 2.5
Label,
mm
mm
x 12
B-0058
63349640
ARB-7639
63297621
ARB-7640
63297630
ARB-7641
63297640
AHC-2114
63297660
AB-0624
63349720
ART-0279
63415940
AHC-0112
63416410
ART-0280
52100356
Change for battery, (non-repairable)
Tape, Lead, C4957-1
Seal, Blind, for
PCB
63459150
holder,
C4991 -1
Spacer, for lead tape, C41 003-1
AHC-0355
63470840
AHC-0354
63449540
Tape, Adhesive, for volume shield plate, A45344-14
Plate,
Reinforcement, for
PCB
holder,
PCB-G707-2
Plate,
Reinforcement, for
PCB
holder,
PCB-G707-1
63500840
Tape, Adhesive, for PCB-G707-2 reinforcement
63500850
volume
C4639-1
shield plate,
A47 157-7
Spring, Ground, for keyboard film, C4988-1
Spring, Ground, for
PCB
Screw, Tapping,
flat
head
A45491 -1 3,
PCB
holder
for
Screw, Tapping,
A45491-1
15
63500830
63497930
Spring, Ground, for keyboard case,
14
63393830
Tape, Adhesive, for PCB-G707-1 reinforcement
Seal, Insulation, for
13
Mfr's Part No.
1
,
flat
holder, C4737-1
head,
(+),
(+),
2
2
63417130
ARB-5025
63416020
ARB-5045
63470830
ARB-5046
63424160
mm x 3.5 mm
AHD-2723
63330000
mm x 3 mm
AHD-3002
63319760
AHD-3003
63292930
AHD-2012
63391680
AZ-0110
63470445
for connector shield plate
Screw, Tapping,
flat
head
(+),
2
mm
x 5
mm
A44793-1 3, for battery (CR-1220)
16
Screw, Machine, pan head,
(+), 1.7
mm x 5 mm
A45919-7, for battery (CR-2032)
17
Case, Upper, for keyboard unit (Tandy)
18
Case, Lower, for keyboard unit (Tandy)
19
Hardware Kit
Screw, Machine, pan head,
(+),
1
.7
mm x
82636723
5.4
mm x 3 pieces
AHW-2603672
82636709
AHD-2013
63426830
A45919-8
Battery, Lighium,
CR2032
Battery, Lighium, (for
Memory back
up)
CR1220
-22-
ACS-0031
CR2032
ACS-0030
CR1220
.
EXPLODED VIEW/DISASSEMBLY
INSTRUCTIONS
1
2.
Remove 3 screws
Lift
^
up the lower case
from the lower
case.
3.
Remove 9 screws
$,
from the PCB holder
@and(Y).
4.
-23-
1
screw
(fj)
O
and
and(5).
Remove the PCB holder and 2
batteries.
1
screw
©
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-26-
RADIO SHACK, A DIVISION OF TANDY CORPORATION
FORT WORTH, TEXAS 76102
CANADA: BARRIE, ONTARIO L4M 4W5
TANDY CORPORATION
U.S.A.:
BELBIUM
FRANCE
O.
91 KURRAIONB AVENUE
RUE DES PIEOS O'AIOUETTE. 39
BP 147-95022
BILSTON ROAO WEDNESBURY
MOUNT ORUin, N.S.W.2770
5140 NANINNE(NAMUR)
CERGT PONTOISE CEOEX
WEST MIDLANDS WS 107 IN
AUSTRALIA
7A6
PRINTED
IN
JAPAN
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.5 Linearized : Yes Page Layout : TwoPageRight Page Count : 27 XMP Toolkit : XMP Core 4.1.1 Metadata Date : 2013:05:22 08:39:22Z Create Date : 2013:05:22 08:35:41Z Modify Date : 2013:05:22 08:39:22Z Creator Tool : Digitized by the Internet Archive Producer : Recoded by LuraDocument PDF v2.53 Part : 2 Conformance : B Document ID : uuid:uuid:16fff06c-322f-97d9-d9a9-282a5d346afa Version ID : 2 Title : Radio Shack Hardware Manual: PC-6 Service Manual (19xx)(Tandy) Creator : Digitized by the Internet Archive Keywords : http://archive.org/details/PC-6_Service_Manual_19xx_TandyEXIF Metadata provided by EXIF.tools