Kenwood TK-3170 Service Manual page 36

Z
TX-RX UNIT (X57-701X-XX) (B/4)
DACCLK
DACLD
5MS
DACDAT
R116 39k
R177 0
R178
1k
R175
10k
C184
AF AMP
2200p
DC SUPPLY SW
1
R259
Q24
SSM6J08FU(F)
10k 2
3
4
R180
5
10k
Q23
DTC144EE
AF AMP
DC SUPPLY
CONTROL SW
RXD
PTT
OPTDET
TXD
INPUT
C145
470p
D30
MIC INPUT
D30
LEVEL
RB706F-40
DETECTOR
C146
R181
470p
C147
0
470p
D31
D31
MIC INPUT
RB706F-40
SP_M
LEVEL
C148 470p
DETECTOR
7.5V
SB
5R
5C
5T
AA
SCHEMATIC DIAGRAM
1 24
VIN1 VIN8
23
2 R184
VoUT1 VoUT8
22 0
3 R230
VoUT2 VoUT7
4 21 12k
VIN2 VIN7
5 20 1
VDD GND
19
6 R187 2
LD RESET
18 0
7 3
CLK VDAREF
8 17 4
DI D0
9 16
VIN3 VIN6
15
10
VoUT3 VoUT6
11 14
VoUT4 VoUT5
12 13
VIN4 VIN5
IC16
M62364FP-F
D/A CONVERTER
7.5V
AF AMP
IC18
AF MUTE SW AF MUTE SW
TA7368FG
Q35 Q28
SSM3K01T(F) SSM3K01T(F)
10
NC1
PoUT
9
VCC
PW-GND
8
NC3 PRE-GND
C161
7
VIN
PHASE
C162
6 100p
RIPPLE
NF
R196
10u6.3
150
Q27
DTC144EE
C157
0.22u
AF MUTE
CONTROL SW
PTTI
(RXD) PTTO
R198
R203
0 2.2k
R202
1k
R207 C168
150k 0.039u
MIC ALC
Q25
2SK1830F
R194
1k
R195
1k
Q26
2SJ347F
MIC ALC
AB
5MS
IC17
TK62012F
R199
8
VDD
4.7k
7
6
5
VSS
R191
0
TCXO BUFFER
R232 82k
POWER ON:5V
OFF:0V
C172
100u6.3
R213 100
D33
AVRM1608270MAB
R218 0
R212 100
TXD
L10
5V
AC
TK-3170
100k
R224
C175 0.01u
RX BPF TUNNE
VOLTAGE AMP
IC19
TC75S51FE(F)
4 3
oUT IN-
2
VSS
5
1
IN+
VDD
C177 0.1u
T:0V
R:5V
CN18
E40-6456-05
RX
TX
UL
PCK
PLLDAT
PLE
THP
ASQL
RSSI
WIDE
NARROW
APCSW
DSW
PC
L16
R220
1k
L14
X57-701 (B/4) 6/6
AD
26
GND
25
RX
24
TX
23
MOD
22
TCXO
21
5MS
20
UL
19
PCLK
18
PDATA
17
PLE
16
THM
15
BPF
14
ASQL
13
RSSI
12
DETAF
11
WIDE
10
NARROW
9
5R
8
5C
7
5C
6
5T
5
5T
4
APCSW
3
DSW
2
PC
1
GND
J1
E11-0707-05
PTT/RXD
MIC
MICIN
OPTDET
5MS
AE
TXD
NC
SPO
SPI
RED
BLK
BLU
WHT
33