Kenwood TK-290-11B Service Manual page 44

U
TK-290-11B
5C
REVERSE
CURRENT
PREVENTION
TONE
D7
ULCNT
5T
1SS388F
5M
UL
R66
CLK
R68
DAT
R78
LE
R11
22
L20
LD
CLK
DI
ULCNT
MOD
T/R
5R
DET
38
X57-613 5/6
V
SCHEMATIC DIAGRAM
R63
10k
D5
1SS360-F
FREQUENCY
SHIFT
C109
C118
0.01u
PHASE LOCKED 1000p
LOOP SYSTEM
IC5
LMX2352TMX/NP
C2
0.1u
13 12
IF_EN
RF_EN
1 00 14 11
CLOCK
Fo/LD
1 00 15 10
DATA
OSCin
C21
1 00 16 9
LE
OSCx
56p
17 8
GND
GND
C17
18 7
fin IF
fin RF
1000p
19 6
fin IF
fin RF
20 5
GND
GND
21 4
CPo IF
CPo RF
22 3
Vp IF
VP RF
R9
23 2
Vcc IF
VCC RF
220
24 1
OUT1
C16 OUT0
0.1u
C13
1000p
C113
100p
T/R
LEVEL SHIFT
IC2
LMC7101BIM5
4 3
INPUT+
INPUT-
2
V+
5 1
OUTPUT
V-
R7 R8
100k
68k
D/A CONVERTOR
IC3
M62354GPDF0J
1 16
Do VCC
2 15
LD VDD
3 14
CLK Ao6
4 13
DI Ao5
5 Ao1 12
Ao4
6 Ao2 11
Ao3
7 10
NC1 NC2
8 9
GND VSS
W
X1
L77-1969-05
4 VCC 1
VCoNT
L18
3 oUTPUT 2
GND
4.7u
C26
L3 L2 L25
33n
27n 27n 27p
R26 R30
220 22
C114
100p
C111
1000p
C112
0.1u
D12,D13
DC SWITCH
4
5
DC-DC CONVERTOR
IC4
MAX865EUA+T
9.7V
1 8
C1- C1+
2 7
C2+ V+
3 6
C2- IN
4 5
V- GND
C15 C100
10u6.3
1.5u16
R76
100
-9.6V
R14
180k
X
TX-RX UNIT (X57-6132-70)
TP1 TP2
R89
27
R18
1.5k
R24 R80
100 220
L19
47n
4.8V
C30 C36
C44
27p 10p
68p
Q3
2SC5108(Y)F
Q14
RF AMPLIFIER 2SC5108(Y)F
BUFFER
AMPLIFIER
R21
10k
Q1
DTA114EE
DC SWITCH
Q2 DC CONVERT
2SJ144-GR(F) SWITCH
3
INPUT-
INPUT+
2
V+ D4 L5
1
V-
OUTPUT
MA2S111-F
IC6
NOISE
LMC7101BIM5
REJECTION
LEVEL SHIFT
D6
CURRENT
STEERING
R17
390k Q4
2SC4617(S)
RIPPLE
FILTER
C41
470p
4.22V
R28 C43
MOD 1 8
MoD 4C
22k 4.7u6.3
2 7
-V TX/RX
3 6
GND1 GND2
L800
4 5
L78-0487-15
CV Fo
VCO SYSTEM
Y
5T
T/R
5C
R:4.7V
T:0V
5R
DET