Shure U2 - Page 24

Shure U2 Hand-Held UHF Transmitter
Replacement Parts and Drawings25B1022 (AG) 23
Table 5
Printed Circuit Board Replacement Parts: Side 1
Reference
Designation
Description
Shure Part
Number
Non-SMT Components
J101,102 Socket strip (for LCD) 56G8068
P101 Battery contact (positive terminal) 56A8061
R208 Audio gain potentiometer, 0.1 W, 20%, 20 k 46B8049
S101 Power switch, toggle, DPDT 55A189
S102,103 Switch, pushbutton, SPST (for Mode/Set) 55A187
Y202 Tone key Crystal, 32.768 kHz 40A8010
Y203 Crystal, 4 MHz (for U205 reference) 40A8012
SMT Components
D201,202 Rectifier, Schottky, MBRS140 184A16
L204,205,206,
251,252
Inductor 15%, 33 µH 162B16
LP201 Filter, low pass, 33 MHz BW 162A17
Q201,205,211 Transistor, NPN SOT-23, MMBT5089L 183A38
Q204 Transistor, MOS FET, MDT3055EL 183A35
R227,286 Trimming pot, 1/4 W, 25%, 1 k 146B02
R230 Resistor, 1/10 W, 1–5, 249 145BF2490
U102 Diode, switching, 7000L 184A08
U103 Integrated Circuit, Comparator, LM339D 188A136
U201,204 Integrated Circuit, 33178 188A18
U203 Compander, integrated circuit, NE575 188A126
U205 PLL Frequency Synthesizer 188A134
U208 Integrated Circuit, 5V dc/dc converter, MAX751CSA 188A182
VC201 Capacitor, trim, 7 / 50 pF 152H02
Y101 Crystal, 4 MHz (for micro–controller reference) 140A005