Kenwood TK-U100V Service Manual page 38

A
TX-RX UNIT (X57-8093-00)
CN3
D3
L1
1SV325F C7
10u
56p (G)
L11
10u
C6 R18
10k
1u
R52
C59
1k
0.033u
TX/RX SW
R3
2.2k
R43
10k
DC SW
Q1
RT1N141U-T111
PLPS
DATA
CURRENT CLOCK
STEERING
DACLD
R305
1k
R306
1k
R307
1k
T91-0651-15
MIC300
MIC
B
VCO
D2,3,4,6
FREQUENCY
MCH3914(7)-H
CONTROL
Q4
C9
0.1u
L5
10u
D5
MODULATOR
R23
MOD
100k
Q2
RT1N141U-T111
SHIFT
CN1 CN2
R26
3.9k
PLL SYSTEM
VOLTAGE
REGULATOR/3V
C23
9
CLoCK FIN
8
C16
1000p
10
DATA
XFIN
7
1000p
Q7
11
LE
GND
3.0V
6
12
PS
Do
5
13
ZC
VCC
4
2SC5383-T111
14
LD/FoUT
VP
3
15
P
oSCoUT
2 C27
16
R
oSCIN
1
22p
IC1 MB15E03SL-E1
R19
10k
R20
TCXO
10k
R21
X1
10k
T0 VCoNT
GND
L77-3074-05
(19.2MHz)
C311
MOD R316
0
1u
R322
D/A CONVERTER
1M
1
VIN7
VIN2
18
2
VDD GND
17
3
R2A20178NP
LD RESET
16
IC300
VREF
4
VDAREF2
CLK
15
5
DI VDAREF1
14
6
VIN3 VIN6
13
C
RF BUFFER
0.75V
1.82V
R33
47k
C33
2SC5108(Y)F C39
C29
Q5
12p (J)
47p
0.5p
(B)
C36
9p (B)
4.17V L8
27n
2SC5383-T111
Q3
RIPPLE FILTER
T/RSHF
5.0V
C328
0.39u
5M
VCC
C38
oUTPUT
22p
LSD BUFFER
IC301
NJM12904RB1
Vref
1 8
V+
7
2
- +
6
3
+ -
4 5
GND
D
R:1.03V
T:1.69V
RF AMP
C42
D100
15p
HSC277
TX/RX SW
2SC5636
Q6
R:4.93V
T: 0V
5C
5.0V
CVDET
2ndLO
R390 R353 R365
1k 0
0
5MS
AF FILTER
IC303
1 R350
8
V+ AoUT
470
7 2
BoUT
A-IN
C346
R351
6 3
B-IN A+IN
180
0.18u
5 4
B+IN
GND
C335
R328
0.18u
NJM12904RB1
680k
R348 R342
56k
15k
R:2.49V
T:2.45V
VREF
1stLO
R260
27k
R361
560
5R
R:4.93V
T: 0V
8
C324
7
R364
0.18u
6
470
5
C343
0.18u