Kenwood TK-P701 Service Manual page 27

TX-RX UNIT(X57-8093-00)
DATA
CLOCK
DACLD
PFKEY
CURDET
EN2
EN1
EN3
EN4
LEDR
LEDG
LSDO
W/N SW
T0
WID: 0V
NAR:5.0V
Q 3 0 5
LTC014YEBFS8
INT
R 3 7 3 R 3 7 5 LSDO
10k
0
VOXIN
VOXIN
HSDO
HSDO
POWC
R 3 7 4
4 7 k (D)
5VC
RESET
7.5V
R 3 7 0
SB
4 7 k
RXD
PTT
TXD
OPTDET
BPF
+B
SB
I C 3 0 3
8
1
VDD oUT1
7 2
oUT2 IN1-
R 3 5 1 180
3
6
INT2- IN1+
C 3 3 5 0 . 1 8 u
5 4
INT2+
VSS
BU7442FVM
R 3 4 8
R:2.49V 5 6 k
VREF
T:2.45V
T0
SPMUT
5MSC
VREF
SCHEMATIC DIAGRAM
WID/NAR
RSSI
THDET
CVDET
VOXIN
RXD
TXD
4 9
LSDO
HSDO 50
HSDO
BATT
51
BATT
52
RSSI
53
SQL
54
LSDIN
55
THDET
56
CURDET
D 4 0 2
57
T/RSHF
D A 2 S 1 0 1
5 8
5VC
R 4 5 5
5 9
NC
5 . 6 k
6 0
NC
6 1
NC
6 2
TYPE2
R 4 3 3
6 3
TYPE1
0
5RC 6 4
5RC
CN401
C400
0.1u
C401
1000p
C N 40 2
C N 40 4
C N 40 3
5.0V
5RC
PTT
LSDIN
OPTDET
BPF
POWC
+B
SB
5MS
5M
5R
QT/DQT FILTER
AF FILTER
R 3 5 0
I C 3 0 5
470 N J M 1 2 90 4 R B1
8 V +
1
C 3 4 6
C 3 2 4
7
2
+ -
0 . 1 8 u
0 . 1 8 u
6
3
- +
R 3 6 4
5
4
G N D
4 7 0
R 3 4 2
C 3 4 3
R 3 6 3
1 5 k
0 . 1 8 u 5 . 6 k
DACLD
PFKEY
CURDET
EN2
EN3
EN1
EN4
LEDR
LEDG
WID/NAR
T/RSHF
SQL
VDCSW
SPMUT
32
SPMUT
31
LEDG
30
LEDR
29
OPTDET
28
NC
27
EN1
26
EN2
MCU
25
EN3
I C 4 0 0
24
F2136ACNKDRB EN4
23
NC
22
PLUL
21
PLPS
20
PLDL
19
DATA
18
CLOCK
E2CLK 17
C405
1000p
C404
0.1u
C403
1p (B)
R413
Q 4 0 0
1k
2 SC 4 9 19 -S
SWITCH
R:4.93V
T: 0V
5R
5C
R 3 6 9
S S M 3 J 0 5 F U - F
5T
Q 5 0 1
1 0 k
5R
R 3 5 4
DC SW
3 3 0 k
R 3 5 2
1 0 0 k
DC SW
R 3 6 6 C 3 4 7
1 0 0 k 1 u
Q502
5TC
LTA023JEBFS8
T0
LSDI
SPMUT
5MSC
TK-P701
DATA
CLOCK
PFKEY
PTT
5MSC
5TC
5CC
SB
4
V I N
CE
V S S
5C 5
V o U T
N C
I C 5 0 3
X C6 20 9B5 02 P -G
VOLTAGE
REGULATOR/5V
T/RSHF
WID/NAR
RSSI
SQL
CURDET
THDET
VDCSW
CVDET
PFKEY
CLOCK
DATA
PLUL
PLPS
PLDL
E2CLK
E2DAT
E2WP
5CC
3
2
1
POWC
5M
5C
5T
5R
BPF
T0
LSDI
27
X57-809 2/4