EasyManuals Logo

Radio Shack CCR-81 Technical Service Data

Radio Shack CCR-81
83 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #17 background imageLoading...
Page #17 background image
TERMINAL GUIDES &
Ie
PINOUTS
::D
3:>
0
2
cO
men
r-z
>
r-O
m;:ll;
<-4
~::D
=en
Co
o
Z2I
fllPlfLOP
TOP
VIEW
8
GNO
A9
39
A8
38
A7
37
A636
AS
3~
A4
34
AD
30
AI
31
A3
33
A2
32
,AIO
40
WAIT
24
GNO
29
mil
28
iI
27
RESET
26
~2~
!lrolii
23
WR
22
Rli
21
071OC·1
240
MICROPROCESSOR
TOP
VIEW
4
AU
3
Al3
All
A12
~
AI~
6
ClK
7
04
8
03
9
3~
10
06
19
liIl£ll
20
fORO
12
02
13
07
I~
01
16
jjjJ
11
lOO
18
HAlT
11
~V
1400
DATA
INPUTS
13
9
OUTPUT
12
11
10
vee
16
2G
STR08E
I~
27.269.270
fliPIFLOP
TOP
VIEW
t--+..:;A:.,:
SE
:o:L:::EC:,:T---l
14
74LS153N
2C1
2Y
21
IIULTIPLEXER
TOP
VIEW
2G
2C3
2CO
2C2
1------..----+----lA
B
f-
.........
-+--+---fB
At------
.........
--lA
IC2
ICI
ICO
IY
IG
STR08E
8
SELECT
SN74LS93N
lI2.
232.
2SO.
265
COUHTER
TOP
VIEW
OUTPUT
7
DATA
INPUTS
I
INPUT
8
INPUT
A
1
1 1
B
X
I----
ROW
NC
I
I---
Rom
OA-I
He
00-1
vee
GNO
I
He
OC
08,--
NC
IHPUTS
OH
vee
16
I~
~~~I
14
PARAlLEL
INPUT
13
PARAlLEL
OUTPUT
12]
PARAlLEL
11
I
PUTS
10
L..----f9
ClEAR
A
SH74LSI66H
lIO.
Z1I
SHIfT
REGISTER
TOP
VIEW
238
DECODER
TOP
VIEW
SH74LS42H
ClOCK
INHI81T
ClOCK
7
I
GNO
PARAlLEL
INPUTS
vee
I
0 I
I
A
I
3
2
8
I
3
C
I
~
4 0
1
5
r----l
7 6
,------
1
GNO
r--<
7
r--
9
r-<
8
r
9
OUTPUTS
4
OUTPUTS
14
I~
vee
16
I~
STR08E
14}INPUTS
13
12
OUTPUT
III
INPUTS
10
9
OUTPUT
vee
16
'------;12
L..-------lll
L..------.410
'-----..0113
IA
2A
4Y
lY
48
28
3A
18
4A
SlI74LSmH
231.
235,
243
249.
ZSl.
264
IIULTIPLEXER
TOP
VIEW
SELECT
I
INPUTS{:
OUTPUT
4
INPUTS{:
OUTPUT
7
8
GNO
Z21
DECODER
TOP
VIEW
u
12
11
13
10
A~---+-iA
vee
16
,-------ll~
SH74LSI56Il
IY2
~----<1IY2
SH74LS36IAH
71"1",YO'-_--<1
I
YO
I
GNO
OUTPUTS
61"1_Y!~_--<11Y1
8
GNO
4Q
I~
40
U
40
13
30
2
3-
11
3
10
vee
16
ClOCK
9
Q
Q
Q
ij
vee
16
~
I~
m,m
fliPIFLOP
TOP
VIEW
511741.$17511
SH7US367AH
ClRP----..o1~.qClR
ClRP--+~~.qClR
4Y
9
CK
4>--r-+--<:t>CK
CK
4>----i----<P
CK
o
Q
lQ
10
I
CI.fAR
4
10
~
20
6
20
7
2Q
I
GHO
I
GNO
liB,
Z2I
TOP
VIEW
2 3 4 5 6 1 8
RIA
fRONT
VIEW
100
l'
I
13
}
11
II
5
10
, 0 I
ZS,
26,
Z57
TOP
VIEW
l[]"
I
13
}
11
II
5
10
1
lIA,
l2A,
24. 29.
223.
m,
225.
Z2fi,
230. 236. 237,
242.
ZSl.
ZSJ,
~,266,
273,
214,
TOP
VIEW
I[]"
I
13
}
11
II
5
10
1 I
Z2C
TOP
VIEW
vz
NC
Yell
VOUT
10
NC
14
CO~~~~~:'
13
V+
12
IICI7Z3CP
lI.22.
REGULATOR
TOP
VIEW
7
V-
1
NC
2
CURRENT
LIMIT
3
CURRENT
SENSE
4
INVERTING
INPUT
~
NON
INVERTlHG
INPUT
6
¥REf
21L028
RESET
PI4
12
6
CLK
PI3
II
7
PIS
PI2
10
8GNO
PIl9
m
THRU
l4I.
261
THRU
Z63
RAIl
TOP
VIEW
J
QI
VOO
16
2
T.t
Q2
I~
3 K
Q3
14
Q4
13
8046670
I
A6
vee
II
2
A~
cs
17
3
A4
04
16
4
A3
03
I~
~
A2
02
14
6
Al
01
13
7
AD
00
12
I
RSJ
RSI
II
9
GNO
RS2
10
Z29
CHARACTER
GENERATOR
TOP
VIEW
1188116E
~IOENT
8CE
Q3
fRONT
VIEW
I
YOO
vee
9
ZI3
THRU
Z20
RAIl
TOP
VIEW
7
AI
A~
10
1
V88
VSS
16
2
DIN
CAS
15
3
WI:
OOUT
14
4
RAS
A6
13
~
AD
A3
12
6
A2 A4
II
Ql
9
Qll
15
QIO
14
VOO
16
Q8
13
Q9
12
RESET
11
jfi
10
E B C
G
QI.
Q2.
Q5
80nOll
VIEW
IICI4040ll
ZlC
COUNTER
TOP
VIEW
I
Q12
2
Q6
3
Q~
4
Q7
~
Q4
6
Q3
7
Q2
I
VSS
WIOENT
8CE
Q6
fRONT
VIEW
Q4
80nOll
VIEW
241
DRIVER
lOP
VIEW
IIC7~~2P
23A,24A
TRISTATE
INVERTER
TOP
VIEW
JlA,
II.
J3
fRONT
VIEW
SlI74U92H
Z56,
zsa
DIVIDE
8Y
6.
DIVIDE
8Y
12
TOP
VIEW
l22, 13l,
l39,
244,
m,
260,
Z67,
26&,
m.
Z75,
Z76
TRI,STATE
8UffER
TOP
VIEW
1 I
2
HC
,l
1
Hel
IHPUT IHPUT
~1
3
HC
B
A
4
HC
~I
~
vee
GNO
I
61----
ROW
~9
71---
ROm
~I
6
27

Other manuals for Radio Shack CCR-81

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Radio Shack CCR-81 and is the answer not in the manual?

Radio Shack CCR-81 Specifications

General IconGeneral
BrandRadio Shack
ModelCCR-81
CategoryDesktop
LanguageEnglish

Related product manuals