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
W hen have no karaoke, this inside of circle a
piece is“O PEN”
FRO NT BO ARD for D V P 301X /XX,DVP301XK/XX,D V P 3005/XX,D V P 3005K /XX,D VP 3007/XX
ZD200 E3
U302A E2
R208 E3
R201 E2
R202 E1
R203 E1
R204 E2
R205 E2
R207 E3
R206 E2
R200 E1
R209 E3
R210 E3
R300 C2
R301 C2
R302 C2
R303 B3
R304 B3
R305 B3
R307 B4
R306 B3
R308 C4
R309 C4
R310 C4
R311 B3
R312 B3
R313 C3
R314 B1
R315 D5
R316 B2
R317 A1
R318 B1
R319 B2
R320 A2
R321 A2
R322 A2
R323 A2
R324 A2
R325 A3
R326 E4
R338 B1
R339 B1
RP200 E2
MIC200 E1
C200 E1
C201 E2
C202 E2
C203 E2
C204 E2
C205 E2
C206 E3
C208 E2
C209 F3
C300 C3
C301 C3
C302 C3
C303 B3
C304 B2
C305 B3
C306 D4
C307 B4
C308 B4
C310 D2
C313 B1
CE201 E2
CE200 E1
J2 F2
J1 F1
J3 F2
CE301 D4
CE300 B2
CE302 A2
CE304 D2
CE303 A3
L200 E2
Q200 E1
Q300 B2
Q301 B2
Q302 B2
Q305 B1
Q306 A1
D200 E1
D301 B4
D302 B4
ZD301 B2
ZD303 A2
U302B E3
K305 B4
K303 C4
K302 B4
K304 C4
K306 C4
U301 B3
CON301 C1
CON302 E4
REM301 D4
VFD A3
C309 B1
C311 C4
C312 C4
C314 D1
C315 D4
C316 E4
C207 E1
SWITCH BOARD
C317 A5
C318 A5
C319 A5
K301 A5
LED1 A5
DV33
LED -
GND
AGND GND
+12V
+12V
-12V
MIC
-12V
-12V
-24V
-24V
AC1
DATA
-24V
+12V
AC2
CLK
+12V
POW ER_K
LED +
GND
-24V
DV33
IR
MIC
CLK
AGND
+12V
DATA
CS
LED -
GNDAGND GNDAGND
AC2
CS
+5V
+5V
IR
POW ER_K
DV33
+5V
-24V
U 301
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
SD out
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
LED 4
LED 3
LED 2
LED 1
GND
OSC
R 315
100 ohm
Q 302
3906
C 202
100p
R 208
1K
R 201
2.2K
C 205 47p
C 314
47p
R 206
3.9K
+
C E 303
3.3uF/50V
R 302 100
C 315
47p
R 322 470
K305
NEXT
D 200
1N 4148
C 306
0.1u
ZD 200
12V
J2
0
CON302
CON4(2.0)
1
2
3
4
R 341 12
R 303
10K
C 310
0.1u
+
-
U 302B
N JM 4558
5
6
7
84
R 310 10K
R 325 12
R P 200
10K
C 311 47p
C 209 1uF/0805
C 304
0.1u
C 305
0.1u
J3
0
C 203
100p
R 338
1K
C 302
100p
R 316 680
D 301
1N 4148
R 200
1.2K
R 306
51K
R 339
1K
R 209
680
MIC 200
2
1
3
2
1
3
C 206 47p
C 200
0.1u
R 311
2.2K
Q 306
3904
R 308
10K
C 301
100p
R 321
470
+
C E 301
47uF
R 203
8.2K
K306
PREV.
C 312 47p
R 318 4.7K
+
C E 304
22uF/50V
R 309 10K
R 210 3.3K
C 207
1uF/0805
C 309 0.1u
R 301 100
C 308 47p
+
-
U 302A
N JM 4558
3
2
1
8 4
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
R 304
10K
R 205 56K
C 316
47p
R 317
10K
K304
STOP
D 302
1N 4148
ZD 301
5.1V
R 320
470
C 208
1uF/0805
R 305
10K
C 201
0.1u
Q 300
3904.
R 319
10K
R E M 301
REM
1
2
3
IR
GND
VCC
R 324 330
L200
1.8uH
Q 305
3904
K303
OPEN/CLOSE
R 326 470
R 307
10K
C 300
100p
C 307 47p
K302
PLAY
R 312
2.2K
R 202 1K
+
C E 300
47uF
R 314 18K
C 303
0.1u
CON301
CON12(2.0)
1
2
3
4
5
6
7
8
9
10
11
12
R 323
10K
Q 200
3904
R 207 6.8K
C E 200
22uF
C 204
100p
J1
0
R 204
4.7K
R 313
2.2K
R 300 100
C E 201
22uF
C 313
1000p
+
C E 302
3.3uF/50V
ZD 303
6.2V
Q 301
3904
K301 P O W E R
LED 1
C 318
47p
1
4
C N 301
1
2
3
4
C 319
47p
C 317
47p
33
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