Kenwood TKR-740 Service Manual page 83
Vhf fm repeater
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Also See for TKR-740:
- Service manual (102 pages) ,
- Brochure & specs (2 pages) ,
- Instruction manual (2 pages)
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A
B
C
D
TKR-740
PC BOARD
1
2
CONTROL UNIT (X53-3882-71) (B/ 4)
Component Side View (J72-0668-11)
3
4
C732
R725
R726
R727
C731
C734
5
R728
C735
R729 R730
6
7
R714
C713
1
I
G
O
IC703
8
C742
C710
9
X53-3882-71 B/4
J72-0668-11
9
10
SPI
1
SPG
VLO
VLI
GND
BLT
8C
11
HOK
PTT
EXR
SW1
SW2
B
B
SW3
SW4
TEST
SW5
SW6
Component side
EN7
MDAT
DT
CK
12
Layer 1
GND
26
MI
MIG
Layer 2
Layer 3
Layer 4
R715
Foil side
2
13
SP
SPG
1
87
14
E
F
G
H
CONTROL UNIT (X53-3882-71) (B/ 4)
Foil Side View (J72-0668-11)
CONTROL UNIT
(X53-3882-71) (B/4)
R
e
. f
N
O
.
A
d
d
e r
s s
C I
2
3
5
C
C I
7
0
3
8
D
C I
7
0
6
8
C
D
7
0
2
1
2
D
D
7
0
3
9
D
D
7
0
4
1
0
D
D
7
0
5
1
1
D
D
7
1
0
6
D
NJM4558E
5
8
4
1
18
BU2114F
10
10
18
9
1
NJM78L05UA
3
1
R707
R708
Component side
Layer 1
Layer 2
Layer 3
Layer 4
Foil side
I
J
K
L
CONTROL UNIT
(X53-3882-71) (B/4)
R
e
. f
N
O
.
A
d
d
e r
s s
C I
7
0
4
I 6
C I
7
0
5
6
J
Q
7
0
0
4
J
Q
7
0
1
4
J
Q
7
0
6
1
I 2
R734
Q700
Q
7
0
7
1
I 2
Q701
Q
7
0
8
1
3
H
R723
R724
Q
7
0
9
1
I 2
R717
C728
Q
7
1
0
1
2
H
D709
D
7
0
6
3
J
C730
D707
D
7
0
7
5
J
C729
C733
D
7
0
8
3
J
C708
C741
D
7
0
9
5
J
D
7
1
1
3
J
C740
C709
D
7
1
2
I 3
O
O
G
G
IC704
IC705
I
I
C711
C712
2SA1586(Y,GR)
2SC4116(Y)
B
E
C
DTA114EUA
DTC144EUA
OUT
IN
GND
X53-3882-71 B/4
J72-0668-11
TA78L05F
V
REF
R706
GND
V
IN
DA204U
HSM88AS
C719
C717
C723
2
C721
1
3
NJM78L05UA
Q709
3
Q706
Q710
1
R709
R710
88
M
N
O
P
CONTROL UNIT (X53-3882-71) (B/ 4)
Component Side + Foil Side View (J72-0668-11)
R723
R734
Q700
C732
Q701
R725
R726
R727
C731
R724
R717
C728
D709
D707
C730
C729
C734
C733
R728
C735
C741
C708
R729 R730
C740
C709
O
O
G
G
IC705
IC704
I
I
C712
C711
R714
C713
1
18
I
G
O
IC703
C742
C710
9
10
X53-3882-71 B/4
J72-0668-11
R706
C719
C717
C723
C721
SPI
1
SPG
VLO
VLI
R707
GND
BLT
8C
HOK
PTT
EXR
SW1
SW2
B
B
SW3
SW4
TEST
SW5
Q709
SW6
Component side
R708
EN7
MDAT
DT
CK
Layer 1
GND
26
MI
MIG
Q706
Layer 2
Q710
R709
Layer 3
Layer 4
R715
R710
Foil side
2
SP
SPG
1
Q
R
S
CONTROL UNIT
(X53-3882-71) (B/4)
R
e
. f
N
O
.
A
d
d
e r
s s
C I
2
3
5
O
C I
7
0
3
8
P
C I
7
0
4
6
P
C I
7
0
5
6
O
C I
7
0
6
8
O
Q
7
0
0
4
O
Q
7
0
1
4
O
Q
7
0
6
1
2
P
Q
7
0
7
1
2
P
Q
7
0
8
1
3
Q
Q
7
0
9
1
2
P
Q
7
1
0
1
2
Q
D
7
0
2
1
2
P
D
7
0
3
9
P
D
7
0
4
1
0
P
D
7
0
5
1
1
P
D
7
0
6
3
O
D
7
0
7
5
O
D
7
0
8
3
O
D
7
0
9
5
O
D
7
1
0
6
P
D
7
1
1
3
O
D
7
1
2
3
P
2SA1586(Y,GR)
DA204U
2SC4116(Y)
HSM88AS
B
2
E
1
C
3
DTA114EUA
BU2114F
535
DTC144EUA
10
OUT
18
9
IN
GND
1
NJM4558E
NJM78L05UA
5
8
3
4
1
1
TA78L05F
V
REF
GND
V
IN
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