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Shure U4D Dual Diversity UHF Receiver
39
25D1062 (AG)
Replacement Parts and Drawings
Table 11
RF–Audio Printed Circuit Board Replacement Parts,
SMT Components, Side 1
Reference Designation
Description
Shure Part Number
D201,202, 203, 204, 205, 210
SMD, switching diode
184A08
F300, 301
Polyswitch, SMD fuse
187A05
FL340, 341
Filter, SMD, low-pass
162A17
L201, 202, 203, 204, 205
Ferrite bead, SMD
162A03
L206, 311, 327, 336
Inductor, SMD, 82 nH
162F06
L208, 209
Inductor, SMD, 180 nH
162D06
L300, 301
Inductor, SMD, 22nH
162C06
L301–303, 306, 307, 309, 312, 314, 315,
318, 322, 329, 343, 344, 345, 347, 348
Ferrite bead, SMD
162A12
L335, 337
Inductor, SMD, 15 nH
162B10
Q201, 202
SMD transistor
183A38
Q301, 307
Monolithic microwave IC amplifier
183A37
Q308
SMD transistor
183A24
R202
Potentiometer
46A8059
R203, 250, 264, 265, 531
Potentiometer, SMD, Trim
146B02
R355, 367
Potentiometer, SMD, Trim
146D02
U201, 202, 204, 205, 207, 210, 212, 213,
216, 220, 305, 310
Dual Op Amp
188A18
U203, 208
Comparator, SMD, quad
188A123
U206
Compander, low voltage
188A126
U209
IC, muting
188A105
U211
Switch, quad, analog
188A19
U214
SMD transistor
183A30
U215
Digital–analog converter
188A201
U301, 314
Power spllitter
161A02
U302, 312
IC, monolithic linear
188A128R
U303, 313
detector, FM IF (For PCB versions 34A8507)
188A190
U315, U316
detector, FM IF (For PCB versions 34A8703)
188A129
U304, 311
Low current LNA/Mixer
188A127
U307
Voltage regulator, 5V
188A115
U309
PLL Frequency Synthesizer
188A134
VC101,102
Trim capacitor, SMT
152D02
Y302
Crystal, SMT, 24 MHz (G and earlier versions)
140A12
Y302
Crystal, leaded, 24 MHz (H and later versions)
40A8016
Table 12
RF–Audio Printed Circuit Board Replacement Parts,
SMT Components, Side 2
Reference Designation
Description
Shure Part Number
L301–303, 306, 307, 309, 312,
314, 315, 318, 322, 329, 343,
344, 345, 347, 348
Ferrite bead, SMD
162A12
Summary of Contents for U4D
Page 11: ...Shure U4D Dual Diversity UHF Receiver 10 25D1062 AG Preliminary Tests Audio Rf Board Side 2...
Page 46: ...Shure U4 UHF Diversity Receiver 25D1062 TL 45 U4 Rf Audio Printed Circuit Board Legend Side 1...
Page 47: ...Shure U4 Diversity UHF Receiver 46 25D1062 TL U4 Rf Audio Printed Circuit Board Legend Side 2...