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MCM-19T1
N BOARD SCHEMATIC DIAGRAM
— 31 —
4.mcm N schem.p65
1
N BOARD WAVEFORMS
1
2
3.38V
(H)
3.56V
(8MHz)
p-p
p-p
3
4
5.03V
(V)
5.00V
(H)
p-p
p-p
5
3.25V
(H)
p-p
N BOARD IC VOLTAGE LIST
IC1001
6
0.01
13 0.00
20 0.32
27 0.46
34 4.81
41 GND
48 0.06
pin volt
7
4.92
14 -0.41
21 5.02
28 0.19
35 4.83
42 3.82
49 5.02
1
0.03
8
5.02
15 5.06
22 0.12
29 GND
36 4.33
43 GND
50 5.02
2
2.95
9
5.02
16 4.16
23 5.03
30 4.54
37 4.70
44 2.41
51 0.12
3
2.92
10 GND
17 3.92
24 4.70
31 5.03
38 0.00
45 2.31
52 3.64
4
3.41
11 5.03
18 2.48
25 0.03
32 0.45
39 5.02
46 5.06
53 5.07
5
0.01
12 0.00
19 3.83
26 0.03
33 0.06
40 5.03
47 5.06
54 5.02
All voltages are in V
N TO D BOARD CONNECTOR VOLTAGES
CN1001 1/2
10
GND
21
4.00
CN1001 2/2
10
2.17
21
N.C
CN1003
pin
volt
11
GND
22
--
pin
volt
11
GND
22
N.C
pin
1
3.93
12
1.64
23
0.01
1
GND
12
1.64
23
2.52
1
GND
2
GND
13
1.44
24
4.16
2
0.46
13
5.03
24
0.00
2
3
GND
14
3.83
25
0.01
3
1.32
14
GND
25
0.00
3
4
0.06
15
1.43
26
1.39
4
GND
15
GND
26
3.64
4
5
0.06
16
4.60
27
3.41
5
1.28
16
-0.42
27
1.07
5
6
0.07
17
1.56
28
2.36
6
0.00
17
5.02
28
5.06
6
GND
7
5.02
18
1.59
29
GND
7
5.02
18
N.C
29
GND
7
8
5.02
19
1.56
30
3.48
8
1.62
19
N.C
30
GND
8
9
0.07
20
1.48
9
1.55
20
N.C
9
N BOARD TRANSISTOR
VOLTAGE LIST
B
C
E
Q1001 0.84 4.47 0.84
Q1002 0.91 5.03 0.91
All voltages are in V
— 32 —
5/19/99, 4:24 PM
N
[Micro, DSP]
CONDUCTOR SIDE
1
A
A
N BOARD
SEMICONDUCTOR LOCATION
DIODE
IC
D1001
C2
IC1001
A3
D1002
A3
IC1003
B4
D1003
A3
TRANSISTOR
B
D1017
B2
Q1001
A1
D1018
A4
Q1002
B2
55 5.03
56 GND
C
10
0.04
COMPONENT SIDE
volt
11
0.48
CN1004
1
4.81
pin
volt
4.83
1
0.56
0.01
2
0.06
A
A
4.70
3
0.12
4
0.19
N BOARD
4.35
5
0.30
SEMICONDUCTOR LOCATION
5.02
6
GND
IC
IC1006
A3
0.47
7
4.54
IC1001
A2
IC1007
C2
All voltages are in V
IC1002
C3
TRANSISTOR
B
IC1005
B1
Q1003
B2
C
— 33 —
2
3
4
4
2
3
4
4
— 34 —
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