Shure UC2 Hand-Held UHF Transmitter
18
Service Procedures
25C1044 (TK)
Tone Key (S501): ON Channel switch: See Table 2 Low-Pass (30 kHz): ON
High-Pass (400 Hz): ON
Figure 9. Deviation Adjustment Voltage Test Set-Up,
Using a UC4 or U4S Receiver
5. Connect the unbalanced output of the UC4 to the input of the
audio analyzer (ac voltmeter).
6. Take a radiative measurement by holding the battery of the UC2
next to the receiver’s antenna.
7. Turn the transmitter ON and adjust R320 until the ac voltmeter
on the receiver reads the same as the deviation reference
voltage, measured above, ± 0.1 dB; or ± 0.2 dB for JA, JB
frequencies.
AUDIO ANALYZER
S501
(TONE KEY SWITCH)
RF
SIDE 1
R320
VCO
UC4 Receiver UC2 Transmitter Audio Analyzer
Output: Unbalanced Power: + 9 Vdc Measurement: AC level
Gain: Maximum Gain: Minimum Frequency Output: 1 kHz
Squelch: Mid Group switch: See Table 2 Filters:
Tone key (S501): ON Channel switch: See Table 2 Low-Pass (30 kHz): ON
High-Pass (400 Hz): ON
Figure 10. Deviation Reference Voltage Test Set-Up,
Using a UC4 or U4S Receiver
