Shure FP16A - Manual (Page 3)

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