Kenwood TK-3000 Service Manual page 30

1 5 P
16 R
DC SW
Q1
R 1 9
R 2 0
R 2 1
RT1N141U-T111
PLPS
CURRENT
STEERING
DATA
CLOCK
DACLD
D/A CONVERTER
1
VIN2
2
VDD
R305
3
LD
1k
R306
4
CLK
1k
R307
5
DI
1k
6
VIN3
T91-0651-15
M I C 3 0 0
MIC
✽
R 3 0 0
R 3 0 3
4 7 0
CN302
1
PTT/RXD
3
MIC
R 3 0 2
1 k
1 1
IM
1 0
OPTDET
2
5MS
J 3 0 0
R 3 0 1
E11-0484-05 1 0 0
C 3 0 3
SP/MIC JACKS
E11-0717-05
J 3 0 1
0 . 0 4 7 u
1
SPG
3
TXD
4 SPK
2 AFO
R 3 0 8
CN303
C 3 0 2 100u6 .3
SP+
SP
SP-
7.5V
F53-0372-05
F500
+BATT
(3.15A)
BATTERY
TERMINAL
-BATT
CURRENT
STEERING
PROTECT
V R 5 0 0
POWER SW
/AF VOLIUM
R 3 1 - 0 6 8 4 - 0 5
VOLTAGE
DETECTOR/RESET
3
oSCoUT
2 C 2 7
oSCIN
1
2 2 p
I C 1 MB15E03SL-E1
1 0 k
TCXO
1 0 k
X1
1 0 k
T0
VCoNT
GND
oUTPUT
L77-3074-05
(19.2MHz)
C 3 1 1
MOD R 3 1 6
0
1 u
R 3 2 2
1 M
VIN7
1 8
GND
1 7
R 2 A 2 0 1 7 8 N P
RESET
1 6
I C 3 0 0
VREF
VDAREF2
1 5
VDAREF1
1 4
VIN6
1 3
C 3 0 5
C 3 1 0
0 . 0 1 u
0 . 0 4 7 u
R 3 0 4 R 3 1 1
1 k
4 7 k
R 3 1 0
R 3 1 2
1 k
2 . 2 k
PTTSW
RXD
PTT
TXD
R 3 7 8
OPTDET
1 k
SB
1 k
SP MUTE SW
Q 3 0 6
2SK3577-A
VOL OUT
RT1N441U-T111
DC SW
Q 3 0 0
R 3 2 1
4 7 0 k
Q 3 0 1
DC SW
RT1N441U-T111
I C 5 0 1 XC6209B502P-G
D 5 0 1
RB521S-30
1 NC
V o U T
5
2 V S S
3 CE
V I N 4
5.0V
VOLTAGE
REGULATOR/5V
R502
330k
CN510
5M
VCC
C 3 8
2 2 p
LSD BUFFER
IC301
NJM12904RB1
Vref
1 8
V+
7
2
- +
R 3 2 8
6
3
+ -
680k
4 5
GND
CURRENT
STEERING
D 3 0 1
C353
R 3 8 9
1 k
1 u
K D R 7 3 1
F 3 0 0
F53-0467-05 (3.15A)
AF AMP ON:3.3V
I C 3 0 2
TA7368PL
OFF: 0V
Q 3 0 2
2SK3577-A
10 PoUT
9 PW-GND
8 PRE-GND
C 3 1 4 1 0 0 p
7 PHASE
C 3 1 5
R 3 2 6
RIPPLE
6 NF
1 0 u 1 0
0
AF AMP ON:5.0V
AF POWER AMP
OFF: 0V
SP-
SPMUT
+B
SB
5MS
5M
DC SW
5MSC
R511
330k
RESET
5 M S
AF FILTER
I C 3 0 3
R 3 5 0
1
AoUT
V+
8
4 7 0
2
BoUT A-IN
7
C 3 4 6
R 3 5 1
3
A+IN
6 B-IN
1 8 0
0 . 1 8 u
4
GND
5 B+IN
C 3 3 5
0 . 1 8 u
N J M 1 2 9 0 4 R B 1
R 3 4 8 R 3 4 2
5 6 k
1 5 k
R:2.49V
T:2.45V
VREF
DC SW
AF AMP
ON:7.5V
OFF: 0V
1
NC1
2
VCC
3
NC2
C 3 2 0
R 3 3 5 R 3 4 5
4
VIN
0
0 . 1 u 0
5
4
V I N
C E
3
VSS
2
5
V o U T N C
1
I C 5 0 3
XC6209B502P-G
VOLTAGE
REGULATOR/5V
5R
R:4.93
T: 0V
C 3 2 4
R 3 6 4
0 . 1 8 u
4 7 0
C 3 4 3
0 . 1 8 u
C 3 3 6
R 3 5 5
4 7 k
0 . 0 1 u
C 3 2 3
0 . 1 u
R 3 3 2
2 . 7 k
R 3 3
1 0 k
PTTSW
RXD
PTT
TXD
S S M 3 J 0 5 F U - F
Q 5 0 1
DC SW
DC SW