Shure ur4d wireless micophone receiver service manual

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2 25-1099 (Rev. 1) FIGURE 1. UR4D AND UR4S FRONT AND REAR PANELS Receiver Controls and Connectors 1.SYNC Infrared (IR) port. Transmits group, channel, and other settings to a transmitter. 2. Squelch LEDs. - Blue (On) = Transmitter signal detected - Off = no signal or signal squelched because of poor reception or no tonekey NOTE: The receiver will not output audio unless at least one blue LED is illuminated. 3.RF LEDs. Indicate RF signal strength from the transmitter at each antenna and diversity condition. - Amber = normal - Red = overload (greater than -“25 dBm) 4.Audio LEDs. Indicate audio signal strength from transmitter. - Green = signal present - Yellow = normal peak - Red = overload To correct this level, adjust the transmitter gain. 5. Indicates the name and range of receiver frequency band. 6. LCD Interface. Provides a convenient way to program the receiver from the front panel. 7.Monitor. 1/4 output jack and volume knob for headphones. - Monitor Clip LED indicates headphone audio is clipping. - Dual models : Push the knob to switch from receiver one to reiver two. 8.Power switch. Powers the unit on and off. 9. AC mains power input, IEC connector. 100-“240 Vac. 10. AC mains power passthrough (unswitched). Use with an IEC extension cable to supply AC power to another device. 11. Diversity antenna inputs A and B. Note: Antenna inputs are DC biased. Use only antenna combiners and accessories listed. Some types of antenna splitters or other products may short the DC power and damage the receiver. Bias can be removed through internal jumper setting. 12.Mic/Line switch. Changes output level -“30 dB (XLR output only). 13. Electrically balanced XLR output jack 14.Lift/GND switch. Lifts ground from Pin 1 of the XLR connector (default = GND). 15. Impedance balanced 1/4 output jack (200-„¦) 16. USB jack for computer interface. 17. RJ-45 jack for Ethernet network interface. Accepts both regular and ruggedized RJ-45 plugs. 18. Temperature-activated fan ensures top performance in high temperature environments. Clean fan screen as needed to remove dust. sync RF Audio OL ABXX YYY-ZZZ MHz Navigate ENTER EXITOFF pushControlPOWER Monitor Monitor Clippush UR4D Wireless Receiver with Audio Reference Companding RF Audio OL ABXX YYY-ZZZ MHz Navigate 1718 antenna A in 12.7V out 150mA receiver outputs lift GND line mic antenna B in 12.7V out 150mAnetworking ethernet RJ-45 10 11 11 12 13 14 15 16 17 9 200-„¦ balanced low Z network activity receiver outputs lift GND line mic200-„¦ balanced low Z
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3 25-1099 (Rev. 1) Standard Operating Conditions Power Supply: 100 VAC to 240 VAC 50 to 60 Hz Temperature: -20C to 57C RF: -80 to -20 dBm into 50 Ohms FM Deviation: <45 kHz of 1KHz tone for THD<1% Operating Information The basic steps required for unit operation: - Switch and control functions - Basic Settings - User Interface and Status Indication UHF-R RECEIVER PROGRAMMNING Receiver LCD Interface Receiver Parameters Use the following instructions to set parameters through the LCD interface. NOTE: After adjusting a parameter, you must press the flashing ENTER button to accept the change. Group and Channel Menu: Radio -Push the Control wheel to move the cursor to the Group ( G) or Channel ( Ch ) parameter. -Turn the Control wheel to change the parameter. Frequency Menu: Radio -Push the Control wheel to move the cursor to the integer value ( 741 .000 MHz ) or fractional value ( 741. 025 ). -Turn the Control wheel to change the value. Automatic Transmitter Sync Menu: Sync. Radio Audio Util SHURE G: 3 Ch: 1 Out: -0dB +12 dB+ Hi 524-025 MHz TV: 32 Sync F, P, FP Menu Access Press the Navigate key next to the menu item you want Transmitter Status Display Everything under the dotted line reflects the settings for the transmitter, if present. Exit/Cancel Press the Exit button to cancel changes and return to the previous Cursor Control Push the Control wheel to move the cursor to the next item. Turn the Control wheel to change a parameter value. Accept Changes After changing a parameter, the ENTER button flashes.