Kenwood TK-7100 Service Manual page 46

F
TX-RX UNIT (X57-6910-XX)
6.2V
BUFFER AMP
Q410
1
2SC5108(Y) VCC1
C456
C454 2
IN
6p 3
2p
IN
4
0.7V
R435
GND
100
UPB1509GV
Q408
KRX102U
L417
R432
1k
R:4.9V
T:0V
T/R SW
7.0V
RIPPLE
FILTER
Q440
2SC4617(S)
R:4.6V
C351
33p
7.9V
7.9V
RIPPLE
FILTER
TX/RX(CPU20)
MIC
PC/TV
W/NO(EVOL2)
W/NI(EVOL1)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
DT(CPU53)
CK(CPU54)
5M
76
77
78
78
79
R124
5M
80
47k
81
82
1k 83
R125
83
1k 84
R126
84
1k
R127 85
85
1k
R128 86
86
C103
87
88
1000p
R91 1k 89
1k 90
R92
91
92
93
R129
94
95
0
L101 96
5M
97
4.9V
98
99
R130 1k
99
100
R131 1k
100
QT/DQT(CPU1)
PLLE(CPU3)
EVLLD(CPU8)
TX/RX(CPU20)
UL(CPU21)
DTMI(EVOL16)
RSSI(CPU92)
IGN(CPU72)
17
SBC(CPU82)
1/2Vcc
G
SCHEMATIC DIAGRAM
RF AMP
Q411
8
1.2V
VCC2
2SC4649(N,P)
C459 C460
7
OUT
6 1000p 18p
SW2
0.8V
5
SW1
IC402
DIVIDER
* TH351
XF351
R:0.8V
L71-0591-05 -t
R353 R354 49.95M R355
*
100k 330
Q351
2SC5108(Y)
IF AMP
8R
C102
R123
R:5.0V
0
0.1u
C101
1000p
8RC
8TC
CM
NC
NC
NC
SBC
KMI2
KMI1
KMI3
KMI4
CPU
PWRPRCT
IC101
SIGNAL
30622MAA-B86GP
TEMP2
TEMP1
BATT
RSSI
SQIN
AVSS
NC
VREF
AVCC
NC
KMO1
KMO2
CNVSS
5M
SQIN(CPU93)
H
RF SWITCH
4.8V
7.2V
L421 C466
100n 100p
D409
DAN235E
R444
1k
R:3.2V
TP
MIXER
R:7.0V
Q352
L352
3SK255
R:1.9V
G2
560n D
C367
*
C359 G1
R:0.4V S
8p
8R
SMP(CPU51)
AMPSW(CPU52)
AFI(EVOL12)
WIDE(CPU65)
NARROW(CPU64)
50
AFM
R119 1k
49
FNC8
48 R118 1k
FNC6
47 R117 1k
FNC7
46 R116 1k
FNC5
45 R115 1k
FNC4
R113 47k
44
CEFLS
43 R114 1k
FNC3
42
NC
41
NC
40
NC
39 R112 47k
EMPFLS
38
RXD TXD
NC
37
NC
36 1k
R111
HOOK
35
PTT
34
RXD R109 R110
33 1.5k 47k
TXD
R108 47k
32
BSYFLS
R107
31 47k
CLKFLS
30 R106 1k
FNC2
29 R105 1k
FNC1
28
EEPSDT
27
EEPSCK
26
EEPWP
1
A0
2
A1
3
A2
4
GND
R151 R152
IC66
10k 4.7k
AT24C64A10SI18
C66 1000p
EEPROM
RSSI(CPU92)
Q71
KRC414RTK
R75
1k
R71
R72
1M
4.7k
KEC
IGNITION
INT(CPU18)
RESET(CPU10)
I
TK-7100
PRE DRIVE AMP
T:1.0V
Q501
C502
C503 2SC3357
R503
18
1000p 100p
T:0.7V
TEMPERATURE
COMPENSATION
RF AMP
D351,352
R:7.3V
RF BPF TUNING
R364 C371 R369
0
0
2p
R:0.9V
TV
R323
220k
R:0.6V
W:4.9V
N:0V
CF301
L72-0993-05
49
IF SWITCH
48
D303
47 DAN222
46
CF302
L72-0999-05
45
43
36
35
W/NI(EVOL1)
5M
5M
AFI(EVOL12)
30
29
8C
5C
8
R270
VCC
7
2.7k
WP
R67
6
47k
R269
SCL
5 R66
82k
SDA
47k
4.9V
AF MUTE
R268
AFM(CPU50)
DTMI(EVOL16)
1k
R:0V
B
2SK1824
AF MUTE
SQIN(CPU93)
SBC(CPU82)
1/2Vcc
INT(CPU18)
RESET(CPU10)
J
T:6.7V
T:1.2V
C509
15p
R510
1.5k
D502
TEMPERATURE
COMPENSATION
R:3.6V
Q353
3SK255
G2
D
S
G1
R:1.6V
MIC
PC/TV
W/NO(EVOL2)
AFO(EVOL11)
8TC(CPU77)
8RC(CPU76)
SMP(CPU51)
AMPSW(CPU52)
L304 R322
330n
100
R:7.5V
Q302
2SC4617(S)
BUFFER AMP
WIDE
IF SWITCH
D302
DAN222
NARROW
W:0V
N:4.9V
C269
1u
C268
0.1u
Q253
2SK1824
Q252
Scrambler
R267
0
43
X57-691 2/3