Philips MCM770, Руководство по обслуживанию

Страница: 13 / 29

5-1
VFD Display Board--Circuit Diagram
5-1
SW
1
1
SW
2
2
SW
3
3
SW
4
4
DOUT
5
DIN
6
IC
7
CLK
8
ST
B
9
KEY1
10
KEY2
11
KEY3
12
KEY4
13
Vdd
14
S1/KS1
15
S2/KS2
16
S3/KS3
17
S4/KS4
18
S5/KS5
19
S6/KS6
20
S7/KS7
21
S8/KS8
22
S9/KS9
23
S10/KS10
24
S11/KS11
25
S12/KS12
26
S13
27
S14
28
S15
29
S16
30
S17/G12
31
S18/G11
32
Vdd
33
VEE
34
S19/G10
35
S20/G9
36
G8
37
G7
38
G6
39
G5
40
G4
41
G3
42
G2
43
G1
44
Vdd
45
LED5
46
LED4(BBE)
47
LED3(POWER)
48
LED2(FANCT)
49
LED1(7507RST)
50
Vss
51
OSC
52
IC701
PT6311
R732
47K
R725
33K
R726
33K
R727
33K
R728
33K
K4
K3
K2
K1
D701
4148
D703
4148
ST
B1
CLK DATA
S1
S2
S3
S4
S5
S6
S7
S8
S9
KS1
KS2
-24V
+5V
S1
S2
R702
10/1/2w
VF1
VF2
S10
S11
S12
S13 S14 S15 S16 S17 S18 G10
G1 G2 G3 G4 G5
G6 G7 G8 G9
R701
10/1/2w
C709
47uF
C704
47uF
R730
4K7
R729
10K
R731
10K
S1 S2 S3 S4 S5 S6 S7 G1 G2 G5 G4 G3 G6 G8 G7 G9 S9 S10 S18 S12 S13 S14 S8 S16 S15 S17
-24V
SW802
DOWM
SW803
SOURCE
SW804
STANDBY
SW805
STOP
SW806
PLAY
SW807
OPEN
G10 S11
VF1
2
S1
3
S2
4
S3
5
S4
6
S5
7
S6
8
S7
9
S8
10
S9
11
G1
12
G2
13
G4
14
G5
15
G3
16
G6
17
G8
18
G7
19
G9
20
G10
21
S10
22
S18
23
S12
24
S13
25
S14
26
S15
27
S16
28
VF2
31
VF1
1
VF2
32
S17
29
S11
30
VFD701
MCD770-01A1
ST
B1
DATA CLK
1 2 3 4 5 6 7 8 9
10 11
CN102
11P/2.0
+5
V
V-GND REM -24V VF2 VF1 ROT-A ROT-B
D702 4148
SW809
UP
S3
R733
4.7kLED701
REM
1
GND
2
Vcc
3
S701
REMOTE
REM V-GND +5
V
G
1
B
2
A
3
ENCODER300
VOL
ROT-A ROT-B V-GND
1
2
3
4
CN1401
vbus
1
D-
2
D+
3
GND
4
Shield
5
GND
6
J1401
USB
GND-u
D+
D-
vbus
R734
10K