Kenwood TK-3312 Service Manual page 39

F
TX-RX UNIT (X57-7890-21)
TH_DET
33M
3.3V
LCDBL
HSDEC
R 9 6 8
1 k
VOX
BUSY
R 8 3 0
1 0 k (D)
LEDBLU
WID/NAR
MIC_MT
MANDN
R 8 3 1
0
R 8 3 2
0
C P 8 0 2
1kx2
LEDGRE
LEDRED
EN2
EN1
33MS
5CC
R 8 1 6
33M
1 0 0 k
3.3V
R E S E T
VOLIN
33MSC
HSDDEC
INT0
VOLOUT
5CC
ON:3.3V
AV R
I C 8 0 2
X C 6 2 0 9 B 5 0 2 M R
1 V I N
Vo U T
5
2 V S S
3 C E
N C
4
5 0 C
VOX
MIC_MT
WID/NAR
SB
BUSY
PTT/RXD
B
G
SCHEMATIC DIAGRAM
THDET
AFCONT
CVIN
33M
R 9 7 8
0
6 1
QT/DQT
R 9 9 3
6 2
CVIN
4 . 7 k (D)
6 3
BATT
6 4
VOX
R 9 8 1
6 5
BUSY
0
6 6
R 8 3 6
TH_DET
1 k 6 7
RSSI
6 8
WID/NAR
6 9
ASSIST
7 0
AF_MUT
7 1
F 3 6 3 B E D F E K D L B
MIC_MT
R 8 5 5
7 2
MAN_DN
0
7 3
5CC
R 8 5 0
7 4
LEDBLU
1 k
7 5
AVSS
7 6
GRNLED
7 7
VREF
7 8
AVCC
7 9
LEDRED
OPTDET
8 0
LSDO
RESET
MODE
3.3V
R 8 5 2
1 0 0 k
R 8 5 4
0
50C
C 9 1 3 3 3 0 0 p
C 8 4 2
3 9 0 0 p
1
A o U T
C 8 4 0
2
A - I N
3 3 0 0 p
3
5.0V
A + I N
H S D H P F
4
G N D
R 8 3 9 R 9 1 6
N J M 2 9 0 4 R B 1 - Z B
0 1 2 k
QT/DQT
VOX
VOLOUT
H
TK-3312/3317
CM_CLK
CE
EP_CS
EP_DTI
EP_WP
5RC
EMP
CM_DTO
M C U
EP_CLK
EP_DTO
I C 8 2 0
5TC
5VC
TX/RX
APCSW
EM_CLK
RXD
TXD
33MSC
NC
PL_DAT
R989
1k
C 8 5 0
VSS
R 8 5 8 R 8 5 7
1 0 0 0 p
VCC
6 8
0
C 8 4 9
0 . 1 u R 9 3 2
1 0 k
OPTDET
3.3V
H S D L P F
H S D A M P
V +
8
B o U T
7
R 8 4 4
B - I N
6
0
B + I N
5
I C 8 0 8
I
E E P RO M
I C 8 1 0
CM_CSN
CM_DTI
1
S
2
Q
H o L D
3
W
4
V S S
4 0
3 9
CM_CLK
3 8
3 7
3 6
3 5
R 7 1 3
DCSW
3 4
4 . 7 k
CM_DTO
3 3
3 2
3 1
3 0
2 9
5RC
2 8
2 7
EM_CLK
2 6
2 5 50VC
2 4
2 3
2 2
2 1
I C 8 0 1 X C 6 2 0 9 B 5 0 2 P R
4
V I N
C E
3
V S S
2
5
Vo U T
N C
1
5 0 M
5TC
Q 8 0 2
D C S W
S S M 6 L 0 5 F U - F
5.0V
Q 8 0 3
D C S W
S S M 6 L 0 5 F U - F
R:4.9V
T: 0V
R 8 6 5 R 8 6 7
1 0 k
2 2 k
J
THDET
AFCONT
CVIN
BATT
3.3V
33M
V C C
8
7
C
6
D
5
33M
DCSW
TX/RX
APCSW
50M
BSHIFT
33MS
TXD
UCLK
50C
VOLIN
7.4V
AVR
R: 0V
T:3.3V
5 0 T
50VC
R:3.3V
T: 0V
R: 0V
T:4.9V
5 0 R
50T
50R
LSDO1
ASSIST
HSDENC
QT/DQT
VOX
RSSI
HSDIN
33M
MICMT
WID/NAR
PTT/RXD1
SB
EMPTT
BUSY
PTT/RXD
OPTDET
VOLOUT
B
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