Circuit Diagram - Vfd / Key Board Assembly - Philips MCM700/12 Service Manual

CIRCUIT DIAGRAM - VFD / KEY BOARD ASSEMBLY

MCD-7
40
G5
41
G4
42
G3
43
G2
44
G1
+5V-2 45
Vdd
46
LED5
0
R712 47
LED4(BBE)
48
LED3(POWER)
49
LED2(FANCT)
50
LED1(7507RST)
R702
51
47K Vss
52
OSC
C701
47uF
C702
104
7 - 1
VFD701
NE-1300CD-3.G
C704
104
26 S12
S12/KS12
25 S11
S11/KS11
24 S10
S10/KS10
23 S9
S9/KS9 S2
22 S8
S8/KS8
21 S7
S7/KS7 S3
IC701
20 S6
S6/KS6
uPD16311
19 S5
S5/KS5
18 S4
S4/KS4 S1
17 S3
S3/KS3
16 S2
S2/KS2
15 S1
S1/KS1
14
Vdd
R703
2.2/0.5
VF1
VF2
-24V
R704
2.2/0.5
VF2
STB1
DATA
S701
3 +5V CLK
Vcc
2 V-GND V-GND
GND
1 REM REM
REM
+5V
REMOTE
D702 4148
KS2
D703 4148
KS3
K1
K2
D701 4148
K3
K4
SW701 KS3
TACT(STBY)
+5V
K4
K3 K1
K2 K2
K1 K3
K4
KS2
GND
7 - 1
CN701
3
2
1
2.0/3P
CN704
1
2
3
SW1501
4 KEY4-2
5
6
T(FUNC)
SW1502
KEY3-2
2.0/6P
T(PLAY)
SW1503
CN702 KEY2-2
1
T(STOP)
2
3 SW1504
KEY1-2
4
5
T(OP/CL)
6
2.0/5P
CN703
6
5
4
3
2
1
2.0/5P
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
2
KEY4-2
3
KEY3-2
4
KEY2-2
5
KEY1-2
6
2.0/5P
MCD-15