Block Diagram; 方块图 - Kenwood TK-3230 Service Manual

TK-3230
TX-RX UNIT (X57-7330-10)
Fuse
2.5A
Battery
F300: F53-0324-05
Protector
D304: GN1G
SB
R416
R417
SB
LED
D400: B30-2143-05
BACKLT Switch
Q400: DTC114EE
LED
D401: B30-2278-05
GLED Switch
Q401: DTC114EE
SEG
LCD
COM1~COM3
CALL
CALL
PTT
PTT
MENU
MENU
UP
DOWN
MONI
UP
DOWN
MONI
SHIFT
42

BLOCK DIAGRAM /

Power switch
Voltage
Regurator
IC404: BH30FB1WG
Q405: KRA305E
BAT
Q404: KRA305E
Q406: KRA305E
IC401: XC61CN2802N
SB
IC400: XC61CN2902N
RDF
RESET
SPDET
Switch
RLED
UL
VOX
BAT
Q402: DTC114EE QT/DQT_IN
BUSY
RSSI
THP
BATL
PTT
3M
MCU
IC403: D338327A22WV
7.37MHz
Crystal
Shift
Switch Oscillator
Q403: 2SC4919 X400: L77-3036-05
Q408: 2SC4919
方块图
Low Pass
Filter
SB
TO
3M
3CC
C432,C434
R444,R445
Switch 3C
3TC
Switch
3T
VCONT TCXO
3RC
X1: L77-3019-05
Switch 3R
Voltage
RESET
Detector
Voltage
BATL
Detector
DI/O
EEPDATA
SPAMP
PEN
PCLK
PDATA
MICMUTE
EEPCLK
BACKLT
GLED
RLED
3TC
3RC
3CC
SHIFT
TO
TCLK
TDATA
DIR
BEEP
PC
SCLK
TXD
W/N
3M
Frequency
XIN
Divider
IC405: TC7W74FU-F
Volume
VR300
3C
Loop Filter
UL
PDATA
PCLK
PEN
C2,C6,C11
R3,R5,R8,R10
PLL IC
12.8MHz
Low Pass
Filter
IC1: TB31202FNG
3R
C50,C51,C52,C53,C54
L13,L14
Tripler
Q202: 2SC4082
RXAF Amp
MOD SMF
3M
EEPCLK
EEPROM
EEPDATA
IC406: BR24L01AFJ-W
MOD
Mod
D4: 1SV214-F
Frequency
Control
D2: 1SV270-F
3C
Shift
Switch
D1: RSK151KJ
Q1: 2SK1824
2nd Local: 38
2nd IF:45
Ceramic
Filter
CF200: L72-0958-05
Volume
e
Volume
Splatter
3M RD
AG
L
QT/DQT_IN
IC301: