Philips MDV434, Service Manual

Page: 6 / 16

6 MDV434
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”
M D V434(K)FrontBoard
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
C207 E1
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
D V33
LED -
G N D
AG N D G N D
+12V
+12V
-12V
M IC
-12V
-12V -24V
-24V
AC 1
D ATA
-24V
+12V
AC 2
C LK
+12V
PO W ER _K
LED +
G N D
-24V
D V33
IR
M IC
C LK
AG N D
+12V
D ATA
C S
LED -
G N D AG N D G N D AG N D
AC 2
C S
+5V
+5V
IR
PO W ER _K
D V33
+5V
-24V
+
C E303
3.3uF/50V
R 309 10K
R 319
10K
R 338
1K
R 205 56K
R 303
10K
R 311
2.2K
J1
0
R 312
2.2K
C 207
1uF/0805
R 302 100
R EM 301
R EM
1
2
3
IR
G N D
VC C
C 302
100p
C O N 301
C O N 12(2.0)
1
2
3
4
5
6
7
8
9
10
11
12
C 316
47p
K303
O PEN /C LO SE
R 324 330
R 308
10K
R 204
4.7K
+
-
U 302B
N JM 4558
5
6
7
8
4
C 315
47p
C 309 0.1u
R 316 680
R 317
10K
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
o
u
t
SD
in
GN
D
SC
L
K
/CS KEY1 KEY2
KEY3
KEY4
VD D
SEG 1/K1
SEG 2/K2
SEG 3/K3
SEG 4/K4
SEG 5/K5
SEG 6/K6
SEG 7
SEG 8
SEG
9
SEG
1
0
SEG
1
1
SEG
1
2
VEE
SEG
1
3
SEG
1
4
SEG
1
5
SEG
1
6
G6 G5
G 4
G 3
G 2
G 1
VD D
LED 4
LED 3
LED 2
LED 1
G N D
O SC
C 301
100p
R 313
2.2K
R 202 1K
R 310 10K
R 301 100
R 322 470
R 323
10K
D 301
1N 4148
R 326 470
K304
STO P
L200
1.8uH
R 315
100 ohm
R 321
470
R 300 100
R 325 5.6
R 200
1.2K
Q 302
3906
C E201
22uF
+
C E300
47uF
+
C E301
47uF
R P200
10K
D 200
1N 4148
R 306
51K
Q 200
3904
R 307
10K
ZD 301
5.1V
C 313
1000p
Q 305
3904
+
-
U 302A
N JM 4558
3
2
1
84
C 202
100p
R 203
8.2K
C 311 47p
C 306
0.1u
R 339
1K
R 320
470
+
C E302
3.3uF/50V
R 314 18K
R 208
1K
C 209 1uF/0805
ZD 200
12V
R 207 6.8K
C 300
100p
R 209
680
ZD 303
6.2V
C 208
1uF/0805
C 312 47p
R 201
2.2K
C 304
0.1u
J2
0
M IC 200
2
1
3
2
1
3
Q 301
3904
C 303
0.1u R 305
10K
C 205 47p
R 318 4.7K
C E200
22uF
C 305
0.1u
C 206 47p
C O N 302
C O N 4(2.0)
1
2
3
4
C 314
47p
C 201
0.1u
+
C E304
22uF/50V
J3
0
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 P1
5
P1
4
P1
3
P1
2
P1
1
P1
0
P9 P8 P7 P6 P5 P4 P3 P2 P1 NP NP NP NP 1G 2G 3G 4G 5G 6G 7G NP F F
C 200
0.1u
R 341 2.2
R 206
3.9K
Q 300
3904.
R 210 3.3K
C 204
100p
K302
PLAY
C 203
100p
C 310
0.1u
R 304
10K
Q 306
3904
PAINEL FRONTAL - ESQUEMA ELÉTRICO