5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A

A

SEG8
DV33
POWER_K
LED-
LED+
IR
LED+
GRID[1:5]
GRID5
SEG8
GRID1
SEG3
GRID2
GRID3
GRID4
SEG6
SEG5
SEG2
SEG4
SEG7
SEG1
GRID3
GRID2
GRID4
GRID5
SEG5
SEG4
SEG6
5V
POWER_K
DATA
SEG2
SEG3
KEY2
KEY1
CS
5V
DATA
IR
CLK
GRID1
SEG1
LED-
POWER_K1
SEG7
SEG[1:8]
CLK
CS
DV33 5V
5V
DV33
5V
R313
N
Y
IR
VCC
GND
DATA
CS
CLK
0.3W
1W
R322R317 R319
NN
YYY
N
Y
N
R321Q1 R323
N
N
Y
Y
Y
N

)5200$,1%2$5'

R316
R313 NC/0R313 NC/0
R1 0RR1 0R
Q1
NPN_3DG3904M
Q1
NPN_3DG3904M
U301
DRIVER_LED_ET6202
U301
DRIVER_LED_ET6202
OSC
1
DI/O
2
CLK
3
STB
4
KEY1
5
KEY2
6
VDD
7
SEG1/KS1
8
SEG2/KS2
9
SEG3/KS3
10
SEG4/KS4
11
SEG5/KS5
12
SEG6/KS6
13
SEG7/KS7
14
GND 28
GRID1 27
GRID2 26
GND 25
GRID3 24
GRID4 23
GND 22
VDD 21
SEG14/GRID5 20
SEG13/GRID6 19
SEG12/GRID7 18
SEG10/KS10 17
SEG9/KS9 16
SEG8/KS8 15
R315 100R315 100
R303
4.7K
R303
4.7K
LED2
LED_RED
LED2
LED_RED
C300
100pF/50V/NP0
C300
100pF/50V/NP0
C306
1uF/50V/Y5V
C306
1uF/50V/Y5V
R304
4.7K
R304
4.7K
C301
100pF/50V/NP0
C301
100pF/50V/NP0
K301
open/close
K301
open/close
R305
4.7K
R305
4.7K
REM301
IRM_12mm
REM301
IRM_12mm
IR 1
GND 2
VCC 3
GND 4
GND 5
C302
100pF/50V/NP0
C302
100pF/50V/NP0
R306
51K
R306
51K
D302
NC/1N4148
D302
NC/1N4148
K302
play/pause
K302
play/pause
R322
0
R322
0
K303
power
K303
power
+
NC/47uF
CE301
+
NC/47uF
CE301
D301
1N4148
D301
1N4148
R307
10K
R307
10K
R321
1K
R321
1K
R316 NC/33R316 NC/33
LED1
LED_2501AHG1
LED1
LED_2501AHG1
GRID5
13
GRID4
12
GRID3
11
GRID2
10
GRID1
9
SEG8
8
SEG7
7
SEG6
6
SEG5
5
SEG4
4
SEG3
3
SEG2
2
SEG1
1
R308
10K
R308
10K
R317
1K
R317
1K
R309
1K
R309
1K
XS301
8PIN/2.0mm/140mm
XS301
8PIN/2.0mm/140mm
11
22
33
44
55
66
77
88
+
47uF/16V
CE300
+
47uF/16V
CE300
+
CE302
10uF/16V
+
CE302
10uF/16V
R314
0
R314
0
R318 NC/100R318 NC/100
R310
1K
R310
1K
R323 NC/33R323 NC/33
C303
0.1uF/50V/Y5V
C303
0.1uF/50V/Y5V
R311
NC/1K
R311
NC/1K
R319
4.7K
R319
4.7K
C315
47pF/50V/NP0
C315
47pF/50V/NP0
R312
1K
R312
1K
R3 0RR3 0R
power
6-9 6-9Front Karaoke board Circuit Diagram: