Schematic Diagram - Kenwood TK-2302 Service Manual

A
TK-2302/2302
TX-RX UNIT (X57-7570-20)
1
2
F301
F53-0324-05
2.5A
L301
BATT
BATT
REVERSE
VOLTAGE
PROTECTION
3
CN301
1 B R393
2 SB
3 AFVOLIN
4 AFVOLOUT
5 AFVOLGND
6 EN1
7 EN2
8 GND
9 EN3
10 EN4
11 EN5
4
470k(D)
5
RECTIFICATION
R:7.6V
T:7.45V
6
ON:4.88V
OFF:0V
7
34
X57-757 1/4
B
V /2306
( )
PLL_CLK
PLL_DAT
PLL_STB
RECTIFICATION
Q1
KTC4075E(Y,GR)
C6
0.01u
C3
R1 R2 R3
22k 10k 47k 1u
5C
B
QTTCXO
PLL_UL
PLL_STB
PLL_DAT
PLL_CLK
B
0
R302 0
R303 100
EN1
EN2
EN3
EN4
EN5
R:3.78V
T:3.47V
R301
VOLTAGE
REGULATOR/5V
IC303
XC6209B502PR
VOLTAGE
REGULATOR/5V
IC304
T:7.35V
XC6209B502MR
T:7.22V
D302
1 5
VIN VoUT
2
HRC0203C
VSS
3 4
CE NC
LR LG
D303 D304
B30-2315-05 B30-2314-05
RED COLOR LED
GREEN COLOR LED
Q301 Q302
ON:5.02V
RT1N441U RT1N441U
OFF:0V
DC SW DC SW
/RED COLOR LED /GREEN COLOR LED
C

SCHEMATIC DIAGRAM

CP1
RK75HA1J101J
PLL SYSTEM IC
IC1
MB15A02PFV2E1
5.0V
R7
0
R12
220
4.92V
TXCO
X1
L77-3042-05
1 4
VCoNT VCC
2 3
GND oUTPUT
L2
4.7u
12.8MHz
DC SW/5R
Q303
5.0V
RT1P141U
5.03V
R306
180k
IC301
BD4840FVE
VOLTAGE
DETECTOR/
RESET
R304
330k
D
C41
4p(B)
2.86V
C33 L8 C47 L12
18n
33n
470p 15p
C51
Q3
2SC5636
10p
RF AMP
CV
4.92V
L9
R15 R18 R20
560 680 0
4.48V
R13
100
0.66V
R9 C16 C26
R11
330k
2.2k
2p(B)
47p
Q2
2SC4774
TRIPLER
DC SW/5T
Q304
T:5.0V
DTB723YE
R:4.84V
PTT
SIDE1
SIDE2
PTT
GND
Side1
Side2
E
C31
2ND_LO
0.01u
5C
5T
QTTCXO
PLL_UL
PLL_STB
PLL_DAT
PLL_CLK
B
5R
AFVOLIN
AFVOLOUT
5M
EN1
EN2
EN3
EN4
EN5
PTT
SIDE1
SIDE2
BATT
L302
5T_C
5C_C
5R_C
RESET
INT
LEDRX
LEDTX
SB