NAD M55 - Timer Circuit Diagram

GND
GND
1
2
3
GND
GND
5V
5V
GND -22V
GND
5V
1 2 3
4
5 6
7
8
9
10
11 12
GND
SW1
1
SW2
2
SW3
3
SW4
4
Dout
5
Din
6
IC
7
CLK
8
STB
9
KEY1
10
KEY2
11
KEY3
12
KEY4
13
VDD
14
Seg1/KS1
15
Seg2/KS2
16
Seg3/KS3
17
Seg4/KS4
18
Seg5/KS5
19
Seg6/KS6
20
Seg7/KS7
21
Seg8/KS8
22
Seg9/KS9
23
Seg10/KS10
24
Seg11/KS11
25
Seg12/KS12
26
Seg13/KS13
27
Seg14/KS14
28
Seg15/KS15
29
Seg16/KS16
30
Seg17/KS17
31
Seg18/KS18
32
VDD
33
VEE
34
Seg19/Grid10
35
Seg20/Grid9
36
Grid8
37
Grid7
38
Grid6
39
Grid5
40
Grid4
41
Grid3
42
Grid2
43
Grid1
44
VDD
45
LED5
46
LED4
47
LED3
48
LED2
49
LED1
50
VSS
51
OSC
52
F1
1
F1
2
NP
3
1G
4
2G
5
3G
6
4G
7
5G
8
6G
9
7G
10
8G
11
9G
12
10G
13
11G
14
NC
15
P17
16
P16
17
P15
18
P14
19
P13
20
P12
21
P11
22
P10
23
P9
24
P8
25
P7
26
P6
27
P5
28
P4
29
P3
30
P2
31
P1
32
NP
33
F2
34
F2
35
5V
5V
5V
GND
5V
5V
-22V
5V
5V
GND
DATA
CLK
STB
DIGITAL ABNORMAL
REMOTE CONTROL
NOT OPERATE
SYSTEM NOT OPERATE OR
DIGITAL ABNORMAL OR
KEY NOT OPERATE
9.TIMER CIRCUIT DIAGRAM
3-41