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A
TK-3217
1
2
LCD ASSY (B38-0906-25)
LCD
3
1
4
33
34
35
5
36
37
40
41
42
43
44
45
46
47
6
C
B
A
S
7
32
X57-713 1/4
B
SCHEMATIC DIAGRAM / 原理图
37
16
15
14
13
12
11
10
LCD DRIVER
9
PT6554LQ
8
7
6
5
C
D
TX-RX UNIT (X57-713X-XX)
4.82V
R8
0
RIPPLE
FILTER
D1
MA2S111-F
R1
R2
22k
10k
L401
BATT
BATT
CN401
E40-6363-05
1
B
2
SB
3
AFI
4
AFO
GND
5
UP
6
7
DOWN
8
GND
5V PROTECTION
D401
RB521S-30
R:7.56V
T:7.26V
R:7.28V
T:6.80V
CN402
E40-6430-05
GND
1
10
NC
2
9
SB
3
8
5M
4
7
GND
5
6
DI
6
5
CL
7
4
CE
8
3
DO
9
2
GND
10
1
E
R9
0
R10
0
R11
0
PLL SYSTEM
IC1
MB15A02PFV2E1
4.76V
C4
VR1
68k
R32-0736-05
0.01u
X1
L77-1931-05
C3
R3
1
4
4.72V
VC
VCC
33k
1u
12.8MHz
3
L1
2
GND
oUTPUT
4.7u
TXCO
F401
F53-0324-05
D402
2.5A
1SR154-400
REVERSE
PROTECTION
R436
0
R412
47k
R403
R408
47k
100
R404
R:3.70V
470k(D)
T:3.57V
IC402
XC6204B502MR
5.00V
1
5
VIN
VoUT
2
VSS
4
3
NC
CE
IC401,402
VOLTAGE
REGULATOR/5V
IC401
XC6204B502MR
4.96V
1
5
VIN
VoUT
2
VSS
3
4
CE
NC
VOLTAGE DETECTOR/RESET
IC403
BD4840FVE
R407
1
5
VoUT
VDD
330k
2
SUB
3
4
NC
GND
RESET
VOLTAGE
DETECTOR/INT
IC404
BD4845FVE
5
R405
1
VoUT
VDD
330k
2
SUB
4
3
NC
GND
5C
C29
470p
R15
220
R12
OSCIN
2.2k
QTTCXO
PLL_UL
PLL_STB
PLL_DAT
PLL_CLK
5C
B
EN1
EN2
BATT
RESET
INT
5M
DI
CL
CE
DO
SB
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