Kenwood TK-3000 Service Manual page 28

E
C237 C238 C239 C243 C245 C247 C248 C250
22p 5p 1p 470p 3p 1p 470p 270p
10p 9p 0.5p 0.1u 7p 0.75p 0.1u 12p
03V
69V
D 1 0 0 C 1 0 0
1 0 p(B)
HS C 2 7 7
TX/RX SW
1stLO
.93V
V
C 2 06
1 5 0 p
C 2 07
1 5 0 p
FM IF SYSTEM
R 2 0 4
R 3 6 1 2 7 0
8 2 0
R 2 0 5
6 . 8 k
C D 2 0 0
L79-1914-05
5R
LSDI
5R
5T
5C
5MS
PLDL
DATA
CLOCK
PLUL
PLPS
DACLD
LSDO
T/RSHF
R:4.93V
T: 0V
QT/DQT FILTER
R 3 5 0 I C 3 0 5
4 7 0
8 V +
C 3 4 6 C 3 2 4
+ -
7
0 . 1 8 u R 3 6 4
0 . 1 8 u
- +
6
4 7 0
G N D
5
C 3 4 3
0 . 1 8 u
3 4 2
N J M 1 2 9 0 4 R B 1
5 k
R 3 6 3
R:2.49V
5 . 6 k
T:2.45V
F
C252 C253 C254 C258 C268 C269 C270 C271
0.75p 22p 4p 470p 22p 22p 1p 3p
470p NO NO 1000p 10p 10p 5p 2p
PRI DRIVE
R 1 0 2
R: 0V
2 . 2 k
T:1.14V
2SC4926YD
Q 1 0 0
C 1 0 2
R 1 5 5
1 5
2 2 p
R:0V
T:0.57V
R: 0V
T:4.86V
C F 2 0 0
L72-1046-05
(450kHz)
R:4.76V
T: 0V
2nd-LO (38.4MHz)
C 2 1 4 C 2 1 7
0 . 0 1 u
5 p
C 2 1 6
R 2 5 8
0
0 . 0 1 u
C 2 0 9
2 2 p
CN200 CN201 R:4.93V
T: 0V
W/N SW
LSDIN
R 3 6 9
1 0 k
R 3 5 4
3 3 0 k
1
R 3 5 2
2
1 0 0 k
3
4 C 3 4 7
R 3 6 6
1 0 0 k
1 u
5 M S
G
C329 C330 C349 D201 D202
0.027u 820p 0.15u HVC355B HVC355B HVC355B
0.033u 560p HVC350B HVC350B
0.047u
R 1 5 7
0
R: 0V
T:4.27V
5T
CURDET
POWC
1stLO
2ndLO
DOUBLER
R 2 1 0
R:0.62V
330k
T: 0V
Q 2 0 1
R 2 1 3
3 . 3 k
KTC4080E-P
R 2 1 4
R:0.73V
T: 0V
I F A M P
R 2 1 2
1 8 0 k
Q 2 0 2
C 2 2 1
0 . 0 1 u
KTC4080E-P
+B
5R
5M
BPF
CVDET
SQL
RSSI
WID/NAR
RT1N144U-T111
LSDIN
5M
T/RSHF
VOXIN
R367
HSDO
4 7 k
H
D204 D260 D261 L2 L3 L113
HVC355B HVC355B 5.6n 18n NO
NO HVC350B
HVC350B 6.8n 22n 10n
DRIVE
Q 1 0 1
RFM01U7P
C 1 0 8 L 1 0 2 R 1 5 6
1 2 n
1 2 p 0
Hi:1.49V
Lo:1.22V
5T
CURDET
POWC
1stLO
R 2 4 4
1st IF (38.85MHz)
X F 2 0 0
L71-0669-05
C 2 2 4 L216
R 2 1 5
1 8 0 n
3 3 0
5 6 0 0 . 0 1 u
+B
5R
5M
BPF
CVDET
SQL
RSSI
PLDL
DATA
CLOCK
PLUL
PLPS
DACLD
WID: 0V
NAR:5.0V
VOXIN
W/N SW
WID/NAR
INT
Q 3 0 5
LSDIN
5M
T/RSHF
R 3 7 5
R 3 7 3
LSDO
1 0 k
0 RXD
TXD
VOXIN
HSDO
BATT
VCO SPEED UP
R 3 7 4
D 4 0 2
4 7 k
(D)
I K
L205 L214 L215 R139 R203 R206 R221
15n 27n 8.2n 0 47k 560k 56k
NO 82k
18n 39n NO 22k 680k
C112
220p
F101
Hi:3.71V
F53-0287-05
Lo:3.04V
(0.5A)
✽
L205 R 2 4 3 R 2 2 3
0 0 0
C 2 2 8
2 p(B)
✽ C 2 5 8
R:2.7V
CN202
T: 0V
R:2.43V
MIXER
T: 0V
Q203
3SK318
R 2 1 7
2 . 2 k
4 9
LSDO
5 0
HSDO
5 1
BATT
5 2
RSSI
5 3
SQL
5 4
LSDIN
5 5
THDET
MCU
5 6
CURDET
I C 4 0 0
5 7
T/RSHF F2136ACNKDRB
J
R229 R230
470k 22
NO
15
+B
C274
4 7 0 p
BPF