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A BOARD SCHEMATIC DIAGRAM
— 27 —
3. mcm A schem.p65
1
KB
RCV
PICTURE TUBE
H
KG
GM
MV
G1
G4
G2
KR
TO
HV
A BOARD
CN303
A BOARD IC VOLTAGE LIST
G
IC001
11
2.01
23
GND
pin
volt
12
0.06
24
2.80
1
4.75
13
0.02
25
3.69
2
4.40
14
0.01
26
GND
3
2.23
15
0.01
27
2.79
4
2.17
16
0.05
28
3.69
5
2.13
17
0.02
29
GND
6
3.45
18
0.31
30
0.20
10
7
2.03
19
GND
IC002
11
8
5.08
20
2.87
pin
volt
9
2.02
21
3.69
1
51.50
pin
10
3.11
22
11.88
2
GND
A BOARD WAVEFORMS
1
4.66V
(H)
p-p
4
52.50V
(H)
p-p
7
48.13V
(H)
p-p
100.0 VDC above GND
10
0.76V
(H)
p-p
— 28 —
5/18/99, 11:12 AM
A BOARD TRANSISTOR VOLTAGE LIST
B
C
E
Q001 11.64 659.00 11.24
Q002 4.66
GND
4.71
Q004 4.71
5.08
4.03
TO
D BOARD
All voltages are in V
CN512
A
A
[VIDEO]
[VIDEO]
3
52.10
2
GND
14
0.01
IC004
11
1.29
6
3.44
8
4.03
4
GND
3
4.74
15
0.01
pin
volt
12 108.90
7
11.13
9
4.03
1
5
50.70
4
4.40
16
0.02
1
3.82
13 111.80
8
11.98
10
0.29
6
78.20
5
0.32
17
0.02
2
11.97
14
1.28
IC006
11
GND
7
GND
6
0.10
18
3.80
3
3.83
15 109.40
pin
volt
12
GND
8
2.85
7
0.25
19
5.15
4
3.84
IC005
1
N.C.
13
5.08
A
A
9
2.77
8
0.05
20
2.91
5
182.70
pin
volt
2
GND
14
5.08
11.97
9
5.15
21
2.81
6
1.11
1
N.C.
3
GND
IC009
2.76
10
GND
22
2.71
7
110.80
2
GND
4
4.80
pin
volt
IC003
11
2.35
23
3.49
8
GND
3
GND
5
0.29
I
11.97
volt
12
2.55
24
1.22
9
108.30
4
GND
6
0.29
G
GND
1
2.58
13
GND
10 111.30
5
3.41
7
GND
O
5.15
B
All voltages are in V
2
3
C
4.37V
(H)
4.37V
(H)
p-p
p-p
5
6
D
38.44V
(H)
38.75V
(H)
p-p
p-p
8
9
E
38.13V
(H)
p-p
51.88V
(H)
p-p
11
12
F
0.76V
(H)
0.76V
(H)
p-p
p-p
G
— 29 —
MCM-19T1
2
3
4
4
5
5
A BOARD
SEMICONDUCTOR LIST
DIODE
D208
B3
D002
G4
D209
B2
D003
G3
D211
F3
D004
G4
D220
B3
D005
F2
D304
A2
D007
G2
D305
A2
D008
G2
D306
B2
D014
B5
D308
C4
D015
G4
D309
B2
D022
C5
D311
F2
D023
E4
D320
B3
D024
E4
IC
D025
E5
IC001
D2
D104
B2
IC002
A1
D105
B2
IC003
E5
D106
C2
IC004
B3
D108
A4
IC005
C4
D109
C2
IC006
F1
D111
F3
IC009
D5
D120
A3
TRANSISTOR
D204
B2
Q001
D5
D205
A2
Q002
G2
D206
B2
Q004
G4
— 30 —
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