Schematic Diagram; 原理图 - Kenwood TK-3230 Service Manual

A
TK-3230
TX-RX UNIT (X57-7330-10)
1
IC400
XC61CN2802N
2.99V
3 2
NC VIN
4 1
VSS VoUT
VOLTAGE DETECT
RESET SW
IC401
XC61CN2702N
3 2
NC IN
4 1
VSS oUT
2
D400
B30-2143-05
R400
0
LCD
BACKLIGHT
TX
DC SW
DC SW
(BACK LIGHT)
(BUSY)
Q400
Q401
DTC114EE
DTC114EE
R:0V
ON:2.82V T:2.97V
3
4
5
6
LCD
7
38
X57-733 1/4
B

SCHEMATIC DIAGRAM /

3.80V
SB
3M
2.977V
3.80V
BATL
RESET
TX/BUSY
D401
3M
B30-2278-05
DC SW
(TX)
R:2.976V
Q402
T:0V
DTC114EE
GLED
BUSY
L401
41
MENU
42
CALL
43
EEPDATA
44
EEPCLK
45
MIC MUTE
46
SHIFT
R410 100 47
PDATA
R411 100 48
PCLK
49
PEN
R491 100k 50
3MSC
R466 100k 51
PABC
52
SP AMP
53
CP400 SEG
RK74HB1J103J 54
SEG
55
SEG
56
SEG
57
CP401 SEG
RK74HB1J103J 58
SEG
59
SEG
60
SEG
CP402
RK74HB1J103J
R406 1k
COM3
R407 1k
COM2
R408 1k CL2
COM1
C
原理图
DC SW (3T)
IC404
BH30FB1WG
Q404
KRA305E
1 5
VIN VoUT
2
GND
3 4
STBY NC
KRA305E
VOLTAGE
REGULATOR(3V)
C428
100p
3M
R:0.03V
C460
R418 R422 R423
T:2.99V
0 39k 39k
0.1u
C413
0.1u
20
BOOT
19
TO
18
TO
17
RDF
16
TCLK
15
TDATA
14
DI/O
13
DIR
12
BEEP
MCU
11
PC
IC403
10
D338327A22WV
SCLK
9
RESET
8
TEST
7
OSC1
6
OSC2
5
VSS
4
X2
3
X1
2
AVSS
1
SP DET
R419 47k
R420 47k
R421 47k
CL1
R428
R472
ON:2.988V
OFF:0V
C422
R429
33p
Q403
2SC4919
BEAT
SHIFT SW
D
2.89V
DC SW (3C)
2.845V
Q405
DC SW (3R)
Q406 2.94V
KRA305E
R:0.03V
T:2.985V
R444
ON:0.03V
0
1
2
3
4
EEPCLK
BOOT
R435
47k
R479
1.8k
RDF
R433
TCLK
47k
R434
R431 10k
BEEP
10k L403
PC
1.834V
RESET
RESET
DOWN
PTT
MENU
UP
CALL
MONI
R464
SPDET
1k
SCLK
L402
100
1M
C437
0.01u
X400
7.37MHz C427
R430 BEAT
SHIFT SW
0 0 33p
L77-3036-05
Q408
2SC4919
E
SB
3T
3C
3R
3M
R445 R482
1.5k 27k
EEPROM
IC406
BR24L08FJ-W
8
A0 VCC
7
A1 WP
6
A2 SCL
5
GND SDA
PTT SW
S1
KEY TOP
S2
R446 1k
S3
R447 1k
S4
R448 1k
S5
R449 1k
S6
R450 1k
2.977V
IC405
TC7W74FU-F
1 8
CK VCC
2 7
D PR
3 6
Q CLR
4 5
GND Q
DIVIDER
C417
470p
C443
100p