Philips DVP3960/37 Service Manual page 13

6-1
1
DVP3960/37 Front Board Electrical Diagram
A
+5V
R320
R317
470
10K Q306
3904
R321
R314 18K C309 0.1u 470
Q305 Q300
3904 R338 3904.
1K
R318 4.7K
R319
10K
C313 R339
1000p 1K
B
C
FROM MAIN BOARD
CON301
MIC
1
AGND
2
+12V
3
-24V
4
IR
5
DV33
6
GND
7
DATA
8
CS
9
CLK
10
LED-
11
POWER_K
12
CON12(2.0)
C314
47p
D
-12V
+6V
CE200 C200 CE201 C201
22uF 0.1u 22uF 0.1u
MIC200 R200 R201
2
2
1.2K 2.2K
1
1
E C202
3
3
Q200
3904 100p
C207
D200
1uF/0805
1N4148
R204
R203
R202 1K
8.2K 4.7K
J1
0
AGND GND
When have no karaoke, this inside of
circle a piece is"OPEN"
F
1
2 3
VFD
R341 12
+12V
AC2
CE302
R322 470 R324 330 R325 12
AC1
Q301 3.3uF/50V
3904 ZD303 R323
CE303
6.2V 10K 3.3uF/50V
C305
0.1u
Q302 -24V
3906
34
35
CE300 C304 C303 R303 R304 R305 R306
36
47uF 0.1u 0.1u 10K 10K 10K 51K 37
+5V
38
39
+ 40
ZD301
41
5.1V 42
43
R316 1K
44
+12V
R327 1K
CS R300 100
CLK R301 100
DATA R302 100
C302 C301 C300
100p 100p 100p
-24V
C310
CE304
0.1u 22uF/50V
+12V
R211 1K
C205 47p +6V
R212 1K R213 1K
R205 56K
-12V
-24V R210 3.3K -12V
L200
U302A ZD200
2
12V
1
1.8uH
3
C203 NJM4558
C204 NJM4558
100p RP200 100p 5 R208
+
10K MIC
7
+12V
C208 6
-
1uF/0805 1K
U302B
R209
R207 6.8K
R206 C206 47p
3.9K C209 1uF/0805
J2 J3
0 0
AGND GND AGND GND
2 3
4
VFD-54
AC2
-24V
22
G4 SEG8
PT6312
21
G3 SEG7
20
G2 SEG6/K6
U301 19
G1 SEG5/K5
18
VDD SEG4/K4
17
LED4 SEG3/K3
16
LED3 SEG2/K2
15
LED2 SEG1/K1
14
LED1 VDD +5V
D301
13
GND KEY4
1N4148
12
OSC KEY3
R311 C307 47p
2.2K
C322
K302
47p R307
PLAY
R312
C321
2.2K 10K
C320
47p
47p
K303
R308
stop
R313
2.2K 10K
OPEN/CLOSE
C319
47p
K304
R309 10K
R310 10K
C318
47p
REM301
3
VCC
2
GND
1
IR
REM
C315
47p
LED+
1
2
GND
3
POWER_K
4
CON302
CON4(2.0)
680
4
6-1
5
DV33
R315
100 ohm
IR
+
C306 CE301
0.1u 47uF
R326 470
DV33
LED-
C317
47p
C316
47p
5
6
A
B
C
D
E
F
6