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7-29. SCHEMATIC DIAGRAM - HP MIC/SPEAKER Boards -
1
2
3
HP MIC BOARD
A
CN1052
P
3P
3
HP-R
S-MASTER
2
HP-GND
B
BOARD
(1/2)
HP-L
1
CN503
(Page 56)
CN1051
7P
C
HP SW
7
Q
HP MUTE
6
A+9V
5
MAIN
MIC SIGNAL
4
BOARD
MIC GND
3
(5/5)
CN205
2
MIC SW
(Page 51)
MIC SCORE
1
D
E
F
G
H
I
J
K
HCD-AZ33D
• See page 65 for IC Block Diagrams.
4
5
6
R1428
R1432
4.7
4.7
0
R1430
Q1400
1k
2SD2114KT146
0.7
0
R1429
1k
0.7
Q1401
2SD2114KT146
FB1061
R1489
Q1451
1k
0.7
2SD2114KT146
R1490
1k
Q1450
0.7
2SD2114KT146
0
R1488
R1492
4.7
4.7
0
Q1400,1401,1450,1451
MUTING
R1075
10k
C1078
C1069
C1070
C1071
2.2
FB1068
50V
220p
47p
1000p
R1070
1.5k
R1068
R1074
R1069
0
47k
C1494
1000p
C1064
1000p
R1064
100k
IC1060
MIC AMP
C1072
C1098
10
0.1
JW1066
35V
R1498
R1066
47k
0
C1068
2.2
C1067
R1065
C1065
0.47
50V
220p
4.7k
50V
R1067
R1071
C1066
10k
47p
10k
C1074
220
10V
C1156
C1118
C1119
C1120
4700p
3300p
0.1
0.1
R1157
C1122
47k
R1190
1
R1156
R1160
50V
R1159
1k
47k
15k
C1121
15k
0.1
C1117
FB1067
0.1
28
27
26
25
24
23
22
21
20
19
R1171
R1170
330
330
1
2
3
4
5
6
7
8
9
10
IC B/D
IC1101
DIGITAL ECHO
D1151
UDZSNPTE-175.1B
R1169
47k
C1177
0.01
C1176
R1167
47
100k
R1168
25V
6.8k
C1169
C1175
C1173
C1174
C1172
3300p
10
4.7
0.01
0.15
50V
R1189
C1192
0
1
50V
7
8
9
FB1062
C1443
0.01
R1426
4.7k
C1493
EP1403
0.01
C1425
0.1
R1486
4.7k
FB1063
R1425
0
C1062
R1062
2.2
FB1064
50V
1k
100k
0uH
R1063
C1063
10k
0.01
R1061
C1061
10k
0.01
C1060
2.2
R1060
FB1065
50V
1k
R1072
10k
C1095
C1164
R1497
R1496
EP1060
0.1
10k
10k
0.1
R1495
R1494
1k
1k
RV1062
50k
ECHO LEVEL
RV1061
50k
MIC LEVEL
18
17
16
15
11
12
13
14
R1161
6.8k
R1163
56k
R1162
22k
C1166
0.1
59
59
10
11
12
13
SPEAKER BOARD
J1401
PHONES
JW501
(CHASSIS)
JW511
JW502
CN501
4P
R
FRONT RCH-
4
FRONT RCH+
3
S-MASTER
BOARD
FRONT LCH-
2
JW512
(2/2)
FRONT LCH+
1
NO580
(Page 57)
J1061
MIC1
J1060
MIC2
(CHASSIS)
HCD-AZ33D
14
15
16
C521
1000p
+
R
TB501
-
SPEAKER
+
L
-
C531
1000p
ET501
(CHASSIS)
C522
1000p
C532
1000p
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