1
1
2
2
3
3
4
4
5
5
6
6
A
A
B
B
C
C
D
D
E
E
F
F
FROM MAIN BOARD
When have no karaoke, this inside of
circle a piece is“OPEN”
DV33
LED-
GND
AGND
GND
+6V
+12V
-12V
MIC
-12V
-12V
-24V
-24V
AC1
DATA
-24V
+12V
AC2
CLK
+12V
POWER_K
LED+
GND
-24V
DV33
IR
MIC
CLK
AGND
+12V
DATA
CS
LED-
GND
AGND
GND
AGND
AC2
CS
+5V
+5V
IR
POWER_K
+6V
+12V
DV33
+5V
-24V
J3
0
R341
12
C200
0.1u
C204
100p
+
CE303
3.3uF/50V
+
CE304
22uF/50V
R305
10K
C203
100p
R312
2.2K
CON301
CON12(2.0)
1
2
3
4
5
6
7
8
9
10
11
12
C310
0.1u
R327
1K
VFD
VFD-54
1
2
3
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
19
20
21
22
29
28
27
26
25
24
23
30
31
32
F
F
NP
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
NP
NP
NP
NP
1G
2G
3G
4G
5G
6G
7G
NP
F
F
K303
OPEN/CLOSE
J1
0
R210
3.3K
C201
0.1u
R302
100
R338
1K
R303
10K
Q306
3904
R304
10K
R204
4.7K
R309
10K
C315
47p
Q300
3904.
R202
1K
C302
100p
R323
10K
R205
56K
R311
2.2K
R326 470
+
-
U302B
NJM4558
5
6
7
8
4
U301
PT6312
1 2 3 4 5 6 7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
SW
1
SW
2
SW
3
SW
4
SDout SDin GND SCLK /CS KEY1 KEY2
KEY3
KEY4
VDD
SEG1/K1
SEG2/K2
SEG3/K3
SEG4/K4
SEG5/K5
SEG6/K6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
VEE
SEG13
SEG14
SEG15
SEG16
G6
G5
G4
G3
G2
G1
VDD
LED4
LED3
LED2
LED1
GND
OSC
R313
2.2K
R322
470
R316
1K
C207
1uF/0805
R319
10K
C316
47p
R308
10K
R315
100 ohm
R310
10K
R300
100
R324
330
+
CE300
47uF
D301
1N4148
C309
0.1u
REM301
REM
1
2
3
IR
GND
VCC
Q200
3904
R317
10K
R307
10K
C301
100p
CE201
22uF
Q302
3906
R325
12
D200
1N4148
R200
1.2K
R301
100
K304
STOP
R321
470
C313
1000p
L200
1.8uH
R314
18K
C202
100p
RP200
10K
C306
0.1u
R306
51K
R211
1K
C300
100p
+
CE302
3.3uF/50V
+
CE301
47uF
R208
1K
ZD200
12V
R339
1K
ZD303
6.2V
ZD301
5.1V
R203
8.2K
R201
2.2K
C209 1uF/0805
+
-
U302A
NJM4558
3
2
1
8
4
Q305
3904
C303
0.1u
R213
1K
R207 6.8K
R209
680
C307
47p
R320
470
Q301
3904
C205
47p
C304
0.1u
J2
0
MIC200
2
1
3
2
1
3
R212
1K
C314
47p
CE200
22uF
C305
0.1u
K302
PLAY
CON302
CON4(2.0)
1
2
3
4
C206
47p
R206
3.9K
C208
1uF/0805
R318 4.7K
Front Board
Electric Diagram
For DVP3180K/93
6-1 6-1