Block Diagram - Kenwood TK-3301 Service Manual

TK-3301
X57-7772-70 (TX-RX UNIT)
Fuse
1.5A
F301:
F53-0321-05
Battery
Power Switch/
AF Volium
R31-0670-15
1
B
2
SB
3
AFVOL_IN
4
AFVOL_OUT
5
6
EN1
7
EN2
8
9
EN3
10
EN4
11
EN5
Channel
CN301
Selector
E40-6573-05
S60-0440-05
32

BLOCK DIAGRAM

5C_C
Protector
Voltage
Regulator
D301:GN1G
IC303:
XC6209B502PR
Rectifier
Q304:DTB723YE
D302:
HRC0203C
Q303:RT1P141U
Voltage
Regulator
IC304:
XC6209B502MR
BD4840FVE
SB
LED
D303:B30-2315-05
Switch LEDTX
Q301:RT1N441U Q302:RT1N441U
SB
R301
BATT
R305
PTT
PTT
SIDE1 SIDE1
SIDE2
SIDE2
Shift
BSHIFT
Switch
Q305,Q306:2SC4919
B
5C
5T_C
PLL_UL Rectifier
Switch 5T
Q1:KTC4075E(Y,GR)
5R_C QTTCXO 5M
12.8MHz
Switch 5R TCXO
X1:L77-3042-05
5M
Voltage
Reset
Detector
IC301:
SB
LED
D304:B30-2314-05
Switch LEDRX
PLL_UL TH_DET
BATT BUSY
EN1 RSSI
EN2 VOX
EN3 STD
EN4 RDF/FD
EN5 QT/DQT_IN
Reset OPTDET
RXD
PCTV
TCLK/DTRDO
5M
MCU
IC306:R5F212CCKCMD
14.746MHz
DI/O
Ceramic
EEPDAT
Oscillator
X301:L78-1433-05
5C
Loop
Filter
PLL_DAT MOD
PLL IC
PLL_CLK
QTVCO
PLL_STB
Q5:2SK1875-F(V)
D4,D8:1SV325F
D9:KDV214E-P
IC1:
MB15A02PFV2E1
Low Pass
Filter
5R
2nd Local:38.40MHz
Tripler
Q2:2SC4774
Ceramic
Filter
CF201:L72-0959-05
QTTCXO APC_SW
QTVCO TXD
AF_CONT
5T_C
DTRLOADN
5C_C
TDATA/DTRCLK
5R_C
SCLK
PLL_DAT
1/2_OSC
PLL_CLK
MIC_MUTE
PLL_STB
EEPCLK
LEDTX
LEDRX DIR
BSHIFT DTMF
EEPCLK
EEPROM
EEPDAT
IC305:BR24L16F-W
Oscillator
: 446MHz
VCO
2nd IF:450kHz
FM
RSSI
BUSY
DET
IC
TA31
5M