Kenwood TK-2207 Service Manual page 48

A
TK-2207
1
TX-RX UNIT (X57-6870-20)
2
BATT
BATT
3
CN401
B
1
SB
2
SP1
3
SP2
4
GND
5
EN1
6
EN2
7
8 GND
EN3
9
EN4
10
4
11 EN5
5
6
5C
RXAFO
7
46
X57-687 1/4
B
SCHEMATIC DIAGRAM / 原理图
R5
100k
RIPPLE
FILTER
D1
MA2S111
C4
0.01u
F401
L401 R1
R2 R3
10k
22k 33k
REVERSE
PROTECTION
R436
R404
0
470k
R403
(D)
100
5V PROTECTION
XC6204B502MR
D401
RB521S-30
1
VIN
2
R:7.56V
VSS
T:7.26V
3
CE
XC6204B502MR
R:7.28V
1
T:6.80V
VIN
2
VSS
3
CE
VOLTAGE DETECTOR/RESET
IC403
1
R407
VoUT
330k 2
SUB
3
NC
VOLTAGE
DETECTOR/INT
R405 1
VoUT
330k 2
SUB
3
NC
C
R9 0
R10 0
0
R11
PLL SYSTEM
IC1
MB15A02
4.84V
R8
0
R7
100
VR1
R12-7491-05
X1
L77-1931-05
C3 1 4
4.72V
VC VCC
1u
12.8MHz
2
3 L1
GND oUTPUT
4.7u
TXCO
R:3.70V
5T SW
T:3.57V
Q403
CPH3317
IC402
Q404
5.00V 5R SW
CPH3317
5
VoUT
4
IC401,402
NC
VOLTAGE
REGULATOR/5V
5C SW
IC401
Q405
4.96V
DTA123JE
5
VoUT
4
NC
BD4840FVE
5
PTT SW1
VDD
4
GND
ON:4.92V
OFF:0.01V
IC404
LED/RED
BD4845FVE
D403
5
B30-2156-05
VDD
4
GND
LED SW
/RED
Q401
DTC114EE
D
C30 C40
4p
470p
L8
C29 C43
18n
470p 15p
4.76V
R16
R15 R21
680
220 560
4.83V
R17
100
0.7V
R12 C17 C25
R14
330k
2.2k 1000p
47p 2p
Q1
KTC4082
TRIPLER
T:4.99V
R:5.01V
R:4.83V
L402
SW2
ON:4.92V
OFF:0.01V
LED/GREEN
D404
B30-2157-05
LED SW
/GREEN
Q402
DTC114EE
E
2.73V
L9
33n
C50
10p
Q2
2SC5108(Y)
PLL IC F_IN AMP
C34
QTTCXO
PLL_UL
PLL_STB
PLL_DAT
PLL_CLK
B
5T
OSCIN
SP1
SP2
5R
5C
EN1
EN2
EN3
EN4
EN5
VCC
VSS
4.95V
VCC
C430
VSS
CP404
0.01u
47Kx2
LEDTX
LEDRX
SIDE1
SIDE2
BATT
5T_C
5R_C
5C_C
RESET
INT
RXAFO
SB
PTTSW
5M