Circuit Diagram - Philips MCD703 Service Manual

CIRCUIT DIAGRAM - VFD / KEY BOARD ASSEMBLY
MCD-7
40
G5
41
G4
42
G3
43
G2
44
G1
+5V-2 45
Vdd
IC701
46
LED5
0 uPD16311
R712 47
LED4(BBE)
48
LED3(POW ER)
49
LED2(FANCT)
50
LED1(7507R ST)
R702
51
47K Vss
52
OSC
C701
47uF
C702
104
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6 - 1
VFD701
NE-1300CD-3. G
C704
104
S701
GND
REM
REMOT E
26 S12
S12/KS12
25 S11
S11/KS11
24 S10
S10/KS10
D702
23 S9
S9/KS9 S2
22 S8
S8/KS8
21 S7 D703
S7/KS7 S3
20 S6
S6/KS6
19 S5
S5/KS5
18 S4
D701
S4/KS4 S1
17 S3
S3/KS3
16 S2
S2/KS2
15 S1
S1/KS1
14
Vdd
+5V
K4
K3
K2
K1
R703
CN701
2.2/0. 5
VF1
3
VF2
2
-24V
1
2.0/3P
R704
15/0. 5
VF2
CN704
STB1
1
DATA
2
3 +5V CLK
Vcc 3
2 V-GND V-GND
4
1 REM REM
5
+5V
6
4148
2.0/6P
KS2
4148
KS3 CN702
K1
1
K2
2
4148
K3
3
K4
4
SW701
KS3
5
TACT( STBY)
6
2.0/5P
CN703
K1
6
K2
5
K3
4
K4
3
KS2
2
GND
1
2.0/5P
6 - 1
MCD-14
CN1401
KEY1-1
1
KEY2-1
2
KEY3-1
3
KEY4-1
4
KS2-1
5
2.0/5P
SW706
4SW
CN1501
gnd
1
KS3-2
SW1501 2
KEY4-2 KEY4-2
3
KEY3-2
4
KEY2-2
T(FUNC)
5
KEY1-2
SW1502 6
KEY3-2 2.0/5P
T(PLAY)
SW1503
KEY2-2
T(STOP)
SW1504
KEY1-2
MCD-15
T(OP/CL)