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Display Board -- Circuit Diagram
SM1
SM2
SM3
SM4
1
1
1
SMARK
SMARK
SMARK
SMARK
R30
120K
AUTO-OFF
G
1
AGND
P
5
H
4
R
3
MP3_R
L
2
MP3_L
JP1
TE-03575
FB1
2.0*0.5
DDGND
USB
5
DGND
4
GND
D+
3
D+
D-
2
D-
VBUS
1
UVCC
CON2
CON12-2.0-AW
12
GND
11
AUTO-OFF
10
IR
9
LED_PWM
8
DATA
7
WR
6
CS
5
GND
4
AD1
3
AD2
2
3.3V
1
D1
A5V
5819
5V
PJ4
TP1
1
DD
1
TP2
DD
P5
P1
P2
P3
P4
1
MP3_R
1
AGND
2
MP3_L
3
CON1
2.0-3P
DATA
CS
WR
R28
10R
A5V
EC4
100uF/10V
J9
Q3
ESD
AD1
R8
470R
5.1K
SW2
SW1
ON/OFF
ON/OFF
AD2
R13
470R
SW7
ON/OFF
SW6
ON/OFF
12-4
33
COM[00:07]
SEG[00:23]
J8
J2
J3
R21
100R
44
DI
J4
R3
100R
43
CLK
J5
R4
100R
42
CE
J1
41
VDD
40
OSC
U1
R27
560R
39
VSS
I-PT6533
R29
38
68K
VLCD
COM00
37
COM1
COM01
36
COM2
COM02
35
COM3
A5V
COM03
34
COM4
R12
R9
R11
33K
20K
SW5
SW4
ON/OFF
ON/OFF
R15
R16
R17
R10
4.7K
10K
33K
10K
SW3
SW8
SW9
ON/OFF
ON/OFF
ON/OFF
IR
R14
EC1
10R
47uF/6.3V
IR
12
SEG11
SG12
13
SEG12
SG13
14
SEG13
SG14
3.3V
15
SEG14
SG15
16
SEG15
SG16
17
SEG16
SG17
18
SEG17
SG18
19
SEG18
SG19
20
SEG19
SG20
21
SEG20
SG21
R33
82K
5V
22
SEG21
SG22
R32
10K
R22
150R
R23
10K
R26
47K
LED_PWM
EC2
J6
2.2u/10V
J7
12-4
R18
47R
3.3V
C8
100P
R19
470
R31
47K
R20
10K
Q1
8050
Q4
8050
EC5
22uF/10V
LED1
LED2
Q2
8050
EC3
22uF/10V
R25
100K
R24
0
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