Block Diagram

1
1
2
2
3
3
4
4
D D
C C
B B
A A
方框图
1
ANT
LPF
TX SW
D1,D9
D5,D6
LNA AMP
Q2
U12
LNAIN
BK4818
FINAL AMP
Q1
AMP
Q3,Q5
PAOUT
U1
AUDIO AMP
FREQ1...FREQ4
Side board
SW2
D12
GLED
SDATA
SCN
EARO
U10
MCU
J4
Channel switch
MIC
BAT
J5
VOL switch
3R
VCC-VT
MICN
PTT
MON
CR1
TCXO 26M
3V
SW1
J5
SW switch
DTC114EE
Q7
VCC
TX LED
VCC1
2SB624
Q9
3T
DTC114EE
Q24
DTC114EE
Q14
GPIO1
U4
LN1173B302PR
3V
3V
3V
VCC1
U2
Voice director chip
3V
DATA
XI
SCK
1K
R70
DRIVE AMP
Q4
DTC114EE
Q21
APC
U7
VCC
BVT
DTC114EE
Q6
2SB624
Q8
BVT
3V
3T
3T
VCC
RV2
R17,R19,R20,R22,R29
VCC
D7
RLED
Alarm key
J3
858SW
ININ
AFOU
NP2301A
Q12
DTC114EE
Q10
VCC CS
DTA114EE
Q11
3V
U3
24C08
SCK
1K
R109
1K
R43
SCK
VCC
GMRS