Shure fp16a owners manual
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2 SPECIFICATIONS Frequency Response (ref 1 kHz) 30 to 20,000 Hz, ±2 dB Voltage Gain (at 1 kHz) Inputs *Dependent on input control setting Outputs Noise Equivalent Input Noise: -129 dBV (low-impedance microphone, 150 Ohms, 300 to 20,000 Hz) into 600 ohm load at full gain Equivalent Input Hum and Noise: -127 dBV (low-impedance micro- phone, 150 Ohms, 20 to 20,000 Hz) into 600 ohm load at full gain Output Noise: -90 dBV maximum (output control full counterclockwise [off]), -65 dBV maximum (output control full clockwise [on]) (input control down, 300 to 20,000 Hz) Output Hum and Noise: -75 dBV maximum (output control down), - 65 dBV max. (output control up, input control down, 20 to 20,000 Hz) Distortion 0.4% THD, 30 to 20,000 Hz at +15 dBm output; 0.5% or less IM distor- tion at +15 dBm output Common Mode Rejection 65 dB minimum with input of - 20 dBV at 100 Hz Control Interaction Less than 1 dB with any control combination Overload and Shorting Protection Shorting outputs, even for prolonged periods, willcause no damage; mi- crophone input will not be damaged by signals up to 3V Phase All outputs in phase with input. Pin 2 is high with respect to pin 3; pin 1 is ground. Tips of link input and output phone jacks are in phase with pin 2 of XLR connectors. Phantom Power 30 VDC nominal, 3.3k series resistance, automatically disabled with in- put switch in Line position Operating Voltage AC Operation: 120 or 240 VAC ± 10% (internally selectable), 50/60 Hz, 5.5W DC Operation: 27 VDC nominal at 16 mA typical no- signal, 22 mA typ- ical at 0 VU (+4 dBm) output; 21.5 VDC minimum; battery life approxi- mately 20 hours with alkaline batteries at +4 dBm output in continuous use; three 9 volt batteries, type NEDA 1604A (Duracell MN1604 or Eveready 522 recommended) Temperature Range Operating: -18° to 57°C (0° to 135°F) Storage: -29° to 71°C (-20° to 160°F) Dimensions 79.5 mm H x 310 mm W x 230 mm D (3-1/8 in, x 12-7/32 in. x 9-1/16 in.) Weight Net: 2.75 kg (6 Ib 1 oz.) Packaged: 3.15 kg (6 Ib 15 oz.) Certifications Listed by Underwriters Laboratories. Inc.; listed by Canadian Standards Association as Certified CONTROLS AND CONNECTORS On⋅Off Switch: applies power to the FP16A circuitry Power LED: Indicates unit is on. Input Gain Screwdriver Control: adjusts input signal level. Output 1-6 Screwdriver Control: adjusts individual output channel signal levels. Norm LED: indicates when internal signal level is approxi- mately 25 dB below clipping. Overload LED: indicates when internal signal level ap- proaches clipping. Three-Pin XLR 1-6 Output Connectors: provide for connec- tion to either low-impedance microphone or line level inputs of power amplifiers, mixers, or other signal processing equipment. Mic/Line 1-6 Slide Switches: select microphone or line level output signal levels. Phantom On-Off Slide Switch: applies 27 VDC (nominal) phantom power to pins 2 and 3 of the input connector for use with condenser microphones. IMPORTANT: Make cer- tain any condenser microphone used is compatible with the FP16A phantom circuit, and that the FP16A input Mic/Line switch is in the Mic position. Do not turn the Phantom switch on when using unbalanced low-impedance microphones; objectionable hum will result. Turn the Phantom switch off when phantom power is not required. Three-Socket XLR Input connector: provides for connection to microphone or line level input signal sources. Input Mic/Line Slide Switch: selects microphone or line-lev- el input signals. Link In, Out Phone Jacks: provide for connecting more dis- tribution amplifiers for additional outputs, or adding external equipment such as equalizers, compressors, or limiters. When connecting two or more FP16As together for addition- al outputs, connect the Link Out jack of the "master" unit to the Link In jacks of the others. Any number of FP16As can be tied together in this way. The Link In jack is input-only, and has switching contacts to disconnect the input signal amplifier from the output channel volume controls. Connect an equalizer, limiter or compressor to the FP16A by connecting the FP16A Link Out jack to the external unit's in- put, and the external unit's output to the FP16A Link In jack. Signals at the Link jacks are typically 10 dB below line level. The Link In input impedance is greater than 20 kΩ and may be considered a bridging impedance. INPUT OUTPUT LINE MICROPHONE LINK Mic 90 dB 40 dB 70 dB Line 40 dB -10 dB 20 dB Link 20 dB -30dB - - INPUT IMPEDANCE (at 1 kHz) INPUT CLIPPING LEVEL AT 1kHz FOR USE WITH ACTUAL Mic 150 Ω 1 kΩ -62 to -6 dBV* Line less than 10 kΩ 66 kΩ -12 to + 44 dBV* Link more than 5 kΩ 24 kΩ +8 dBV INPUT IMPEDANCE (at 1 kHz) INPUT CLIPPING LEVEL AT 1kHz FOR USE WITH ACTUAL Mic 150 Ω 2 Ω -34 dBV Line 600 Ω 185 Ω +16 dBV Link 600 Ω or greater 100 Ω or less +16 dBV
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3 INSTALLATION AND OPERATION Battery Operation In addition to 120 or 240 VAC operation, the FP16A can be operated from an internal battery pack. Current drain is typ- ically 22 mA at +4 dBm output level. Battery operation is rec- ommended for remote, on-location operation, and as an emergency backup source in case of AC power failure. Access to the battery compartment is through the bottom of the chassis. Three 9 volt transistor radio batteries power the FP16A at full rated output. Use alkaline batteries for maxi- mum life. Duracell MN1604 or Eveready 522 are recom- mended. Battery life is approximately 20 hours at +4 dBm continuous use. Note that phantom power loading will in- crease battery drain. With batteries in the battery compartment, the FP16A will automatically and silently switch to battery operation should the AC voltage fall below a suitable level. Connections Connect the signal source to the three-socket XLR Input connector and set the input Mic/Line switch for the proper level. Connect the three-pin XLR 1-6 Output connectors to low-impedance microphone or line level inputs of power am- plifiers, mixers, etc. Set each Mic/Line switch for the appro- priate signal level. Connect additional distribution amplifiers or add external equipment using the FP16A Link jacks (see Controls and Connectors). A common ground connection can be estab- lished using the rear-panel Ground binding post. Connect the line cord to a 120 VAC ±10%, 50/60 Hz source if the FP16A is to be ac-operated. If 240 volt AC operation is desired, refer to the Service section.Adjustments Turn the On-Off switch to the On position (Power LED will light). Turn the Phantom switch on if a non-battery-operated condenser microphone is to be used with the FP16A. With an input signal applied, adjust the Input gain control so that the Norm LED flickers during normal speech or music (the Overload LED will flicker as the signal level approaches clipping). Adjust the Output 1-6 controls to provide an ade- quate signal feed to the following equipment. Telephone Interconnection When using the FP16A connected directly to a telephone line, check to see whether the telephone company requires an interface coupler between the FP16A and the telephone line. If a coupler is required, make certain the coupler select- ed and the wiring arrangement are in compliance with local telephone company regulations. When direct connection to a telephone line is not possible, acoustic coupling to a telephone handset may be used. A Shure Model 50AC Telephone Acoustic Coupler can be connected to the 600 ohm line output of the FP16A and at- tached to most telephone handsets. Telephone Line Surge Protection When using the FP16A connected directly to a telephone line subject to lightning-induced voltage surges, the follow- ing part (commercially available) can be installed across the LINE OUT terminals to provide additional protection for out- put circuit components: Metal Oxide Varistor, General Elec- tric Co., Type No. V22ZA1. ACCESSORIES The Model A16R Rack Panel Kit consists of a 19 in, x 3-1/2 in. (483 mm x 89 mm) precut rack panel and necessary hardware for rackmounting the FP16A with its cover in place and end caps removed in a standard 19" (483 mm) rack panel. SERVICE Caution: These servicing instructions are for use by quali- fied personnel only. To avoid electric shock, do not perform any servicing other than that contained in the Operating In- structions unless you are qualified to do so. Refer all servic- ing to qualified service personnel. The FP16A can be disassembled as follows. Remove two screws fastening each end cap. Remove four screws secur- ing the cover assembly to the chassis. Carefully lift the cover assembly up and away from the chassis, taking care not to snag any wire leads or components. 240 VAC Operation To change the FP16A operating voltage from 120 VAC to 240 VAC, follow these steps. 1. Locate the Power board. 2. Remove the jumper plug from connector J205 (marked 120V), and carefully insert it in connector J206 (marked 240V), making sure all six pins are properly engaged. 3. lnsert the T50mA/250V fuse (packaged with the FP16A) in the fuseholder marked F202. 4. Replace the AC line cord (if necessary) with one designed for the 240 volt source. If the FP16A is to be used outside the U.S. and Canada, local regulations may require replacing the line cord with one having wire insulation colors as follows: 5. Mark the FP16A rear panel with the new operating voltage. live or hot Neutral Earth or Ground U.S., Canada Black White Green Europe Brown Blue Green/Yellow