Shure FP16A Installation And Operation, Accessories, Service, Battery Operation, Connections

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:
		“live” or “hot”	Neutral	Earth or Ground
U.S., Canada		Black	White	Green
	Europe	Brown	Blue	Green/Yellow
5.	Mark the FP16A rear panel with the new operating voltage.

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