Schematic Diagram - Kenwood TK-3402(U) Service Manual

A
TK-3402(U)/3402/3407
TX-RX UNIT(X57-8320-10)
1
PLL_CLK
PLL_DAT
PLL_LE
PLL_PS
PLL_LD
1
VCoNT
2
GND
1.66V
2
L600 F600
7.5V
BATTERY
F601
3
CN600
VR1
1 VOLOUT
2 VOLIN
3 B
4 SB
5 VOLGND
6 EN2
7 EN4
8 GND
9 EN3
10
EN1
S1
4
PTT
Side1
Side2
GND
7.4V
SB
5
Voltage detector(INT)
XC61CN4502M-G
VIN
6
GREEN
(BUSY)
7
34
X57-832 1/4
B
CP1
100X4
Speed up(PLL UL)
C14
0.1u
X1
16.8MHz R10
100
3.3V
VCC 4
L1
R4 C16
R8
oUTPUT 3
4.7u
0 330
0.01u
L77-3050-05
R2 R7
330k 0
R3
R9
0 0
Voltage prevention
7.5V
R614
820k
Q603
SSM3K127TUT
DC SW(MIN-VOL)
L601
IC603
XC6209B502P-G
4
VIN
CE
3
VSS
2
5
VoUT
NC
1
Voltage regulator(50V)
5.0V
50V
IC600
INT
Over voltage
protection
R609
VoUT
1k
BLUE
RED(TX)
Q605
LTC014EEBFS8
DC SW(BUSY-LED)
Q600
LTC014EEBFS8
Q604,605
DC SW(TX,BLUE-LED)
Q604
LTC014EEBFS8
C

SCHEMATIC DIAGRAM

PLL system
IC2
MB15E03SL-E1
9
CLoCK
FIN
8
10
DATA
XFIN
7
11
LE
GND
6
R16
12
PS
Do
5 0
13
ZC
VCC
4
14
LD/FoUT
VP
3.2V
3
15
C18 C22
P
oSCoUT
2
16
270p 270p
R
oSCIN
1
C19 C23
0.01u 0.01u
5.0V
L2
R13
10
Voltage regulator(50M)
IC601
7.4V
XC6209B502P-G
4
VIN
CE
3
VSS
2
5
VoUT
NC
1
Voltage regulator(50C)
1
VIN
VoUT
5
2
GND
3
CoNT
NC 4
IC602
MM1856A50N
Voltage regulator(33M)
D600
1
RB521S-30 2
Voltage drop
3
3.3V
SB
7.4V
BUSY LED
BLUE LED
ON:3.3V
ON:3.3V
R:0V
T:3.3V
D
R775
0
CV(A)
R17 R19 R20
0 470 470
5.0V
R:0V
DC SW(50T)
T:4.9V
Q601
SSM6L36TU-F
R:4.9V
T:0V
DC SW(50R)
Q602
SSM6L36TU-F
50VC ON:
3.3V
5.0V
50C
50CC ON:
3.3V
IC604
MM1856A33N
VIN
VoUT 5
GND
3.3V
CoNT
NC
4
Q606
SSM3J36TUT
DC SW(33MS)
R613
100k
IC605
BU4830F
Voltage
detector(reset)
E
Do
FIN
CV
50C
50T
MOD1
50R
16.8MHz
50M
50V
50C
+B
Freq
BATT
VOLIN
VOLOUT
33M
5TC
R:0V
T:3.3V
50RC
R:3.3V
PLL_PS
T:0V
PLL_UL
50VC
PLL_LE
PLL_DATA
PLL_CLK
50CC
INT
ON:0V
3.3V
RESET
GRNLED
BLULED
REDLED
PTT/RXD
SB