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Shure UC2 Hand-Held UHF Transmitter
12
Service Procedures
25A1044 (RI)
Test Set-Up
U200
AUDIO SIDE 1
D201
C200
J205
Q220
TP18
TP10
TP4
TP6
+5V
+9V
U201
U202
C216
R7
U205
Y200
S200
GND
1
U203
Q203
Q202
Q204
Q209
Q201
Q212
Q213
C222
C214
PAD
C27
C291
RED
GREEN
S301
S302
RF GND*
TPRF1
J2*
R40*
Q304
Y302
C314
R320
U302
U303
Y301
U501
C510
1
TP30
TP+9
L302
Q301
C308
U31
1
C309
RF SIDE 1
AUDIO SIDE 2
RF SIDE 2
J202
J201
J302
J301
C227
C251
C223
C221
C210
Q211
Q210
Q208
Q3
Q2
U2
L1
Q1
C243
L207
TP2
TP16
TP6
TP4
TP10
C213
TP18
+9V
+5V
J200
J300
D304
D303
D302
D301
U5
C303
C324
U306
C353
U304
C315
C336
Q305
Q303
L300
U1
U1
C347
L308
TPRF1
TP30
TP+9
1
1
R39
P201
P200
P203
P204
L2
R25
*J2 and R40 are placed for JA, JB frequencies only. RF GND is accessed thru a hole in the pcb.
Figure 5.
UC2 Major Test Component Locations
1. Use the PT1843 cable to connect the audio board to the rf board
through the 11-pin board interconnects (J200, J300, side 2).
2. Apply + 9 Vdc across the battery terminals (J201, J202, side 2).
3. Set the audio GAIN potentiometer (R207, side 1) to minimum,
full counter-clockwise (CCW).
4. See Table 2 for frequency settings.