Shure T2 Service Manual page 39

+5V
+9V
3
R103
100K
C103 2
+
R105 R106
1 µF
100K 150K
16 V
Audio In
I104
C105
P102
R110
5
4
499
0.1 µF C113
P102 C131
150pF
150pF
P101
1 6
P101
+9V
+9 V to Mic
P101
3
P101
R116
1K
eld
Shi
I119
P102
R119
1
1K
+
C116
P102
4.7 µF
16 V
P102
C120 +
3
10 µF
16 V
P102
+9 V to RF
I133
P102
2
P102
183A07
Q105
2
3
1
55A178
S101
6
5
4
L102
J101 1.8uH
+
+9V
I140
L103
J102
1.8uH
R143
I145
20K
R136
45.3K
Red
D101
183A02
183A02
Q106
R138
4.99K
I1GN
U102 D
1
188A49
U102 C
7
188A49
R112
C110
R142
+ 16.5K
2.0K
C111
1 µF, 16 V
2
.0039 µF
CW
3 1
R125
20K Log Taper
Gain
+9V
Audio
L101
I+9.0
+
C127
C126
162A03
.001 µF
4.7 µF,
16 V
NOTE: PARTS CONTAINED IN
DASHED LINES ARE NOT PLACED
R131
R132
4.02K
2.49K
JP1
0 0
R144
JP2
3.01K
Amber
D102
R134 Q109
R145
18.2K
60.4K
183A02
Q108 0
JP3
Q107 Q110
183A02
183A02
150pF
R139
C132 R146
6.81K
6.81K
Audio Ground
R101 R102
10K 4.99K
+ C102
+
C101
47 µF
47 µF
10 V
10 V
PIN 9 OF U101
+9V
R107
MC33179DR2
24.9K
4
12 C130
150pF
U102 A 14
+
188A49
C106
1 µF
11
16 V
13
11
R115
12
-
10
2.0K +
U101 C109
R117
+ 4.7 µF
16 V
24.9K
188A01
14
G
A
C121
15
*
R124
0
16 9
R126
+
C123
60.4K
1 µF C124
16 V
150pF
R129
10K
+5V
+
R133
6
R135
5 13.3K
Green
7
49.9K
D103
188A01
+9V
3
G
13
U101 B
C129
150pF
2
4
1 8
E 1999, Shure Brothers Inc.
27B1018 (SB)
+5V
R104
100K
+
C104
1 µF, 16 V
R109
10
402K U102 B
188A49
C108
R113 R114
9
10K 7.5K
4.7 µF, 16 V
C112
330pF
R118
10K
C115
C117
+
C118
.0015 µF
1 µF, 16 V
4.7 µF, 16 V
+
R122 +5V
R140
1K
75K
R127 R128
Q103
1.5K 1.5K
183A01
R141
CW
20K 10K
R130
C125
1 µF
FUNCTIONAL TEST POINTS:
16 V
I104 = AUDIO INPUT
I109 = AUDIO OUT TO RF BOARD
I119 = Vcc TO MICROPHONE
I133 = Vcc TO RF BOARD
I147 = +5V DC TO RF BOARD
I140 = Vcc INPUT (+9V DC)
I145 = GROUND
+5V
I147
R137 P101
2
100
L104
+5 V to RF
I+5
C128
150pF
Audio Out to
RF
I109
C107
P101
+ 4
4.7 µF, 16 V
249
R111
8
C119
4.7 µF, 16 V +
R123
1K
183A01
Q104
T2 Audio Board