Model FP16A Distribution Amplifier
User Guide
GENERAL DESCRIPTION
The FP16A is a 1-input, 6-output, compact, self-contained audio distribution amplifier for routing multiple audio signal feeds
without incurring loss, distortion, hum or noise. The intelligent design, reliable components and meticulous construction of
the FP16A make it the optimum choice for broadcast stations—AM, FM, or TV, studios or ENG vans—as well as recording
studios, duplicating houses, and telecommunications and production facilities.
FEATURES
equipment such as equalizers, compressors or
limiters
Recessed input gain control with normal and
overload LED indicators
Recessed individual output channel gain controls
Powered by AC (120 or 240V-internally selectable)
or built-in battery pack
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Wide-range audio frequency response
Up to 90 dB gain
Low noise, hum and distortion
Protected against damage from input overload and
shorted outputs; protected against RFI and
mechanically protected against incorrect battery
insertion
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Low battery drain provides more than 15 hours
operation under normal operating conditions
Noiseless and automatic switchover to and from
battery power
Rugged and durable construction
Compact and lightweight for field use and
transportation
Reliable operation over wide temperature and
humidity extremes
Rack-mountable with accessory rack mount kit
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Transformer-coupled XLR input connector is
switchable to low-impedance microphone or line
level
Phantom power for condenser microphones
available at input
Six isolated, transformer-coupled XLR outputs are
switchable to low-impedance balanced microphone
or 600-ohm balanced line level
Link input and output jacks permit "ganging" of
FP16s for additional outputs, or adding external
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©2004, Shure Incorporated
27A8725 (Rev. 3)
Printed in U.S.A.
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INSTALLATION AND OPERATION
Battery Operation
Adjustments
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.
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.
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.
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.
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
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.
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.
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.
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.
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
1. Locate the Power board.
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.
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:
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.
“live” or “hot”
U.S., Canada Black
Europe Brown
Neutral
White
Blue
Earth or Ground
Green
Green/Yellow
240 VAC Operation
To change the FP16A operating voltage from 120 VAC to
240 VAC, follow these steps.
5. Mark the FP16A rear panel with the new operating voltage.
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REPLACEMENT PARTS LIST
REFERENCE DESIGNATION
DESCRIPTION
Capacitor, Electrolytic, 47 µ , 35V
Capacitor, Electrolytic, 22 µF, 35V
SHURE PART (COMMERCIAL ALTERNATIVE)
Shure 60101FT (Sprague 503D476F035ND)
Shure 60104FT (Sprague 502D226G050CE1C)
Shure 60105FT (Panasonic ECE-A35Z4R7)
C101
C104, C107, C130
C105, C108, C111, C114, C117,
C120, C123
Capacitor, Electrolytic, 4.7 µF, 35V
C110, C113, C116, C119, C122,
C125, C127, C133
Capacitor, Electrolytic, 100 µF, 35V
Shure 60107FT (Sprague 503D107F050PD
C131, C134
C202
Capacitor, Electrolytic, 470 µF, 35V
Capacitor, Electrolytic, 330 µF, 63V
Capacitor, Electrolytic, 10 µF, 35V
Diode, Computer, 75V
Shure 60108FT (Sprague 503D477M035PE)
Shure 60111FT (Sprague 503D337F063QG)
Shure 60112FT (Sprague 503D106F035LA)
Shure 86A415 (TI/GE 1N4148)
C204, C205
D101-D108
D201-D204, D206-D207
D205
Silicon Rectifier, 100V, 1/2A
Shure 60201FT (Motorola 1N4002)
Shure 60202FT (Motorola1N5239)
Shure 60204FT (Rohm SLR34MG3)
Shure 60205FT (Rohm SLR34YY3)
Shure 60206FT (Rohm SLR340R3)
Shure 60207FT (Littelfuse 313.010)
Shure 60208FT (Littelfuse 218.050)
Shure 60216FT (Cannon XLB-3-31PCV)
Shure 60217FT (Cannon XLB-3-32PCV)
Shure 60218FT
Zener Diode, 9V, 112W
D601
Light-Emitting Diode, Green
D701
Light-Emitting Diode, Yellow
D702
Light-Emitting Diode, Red
F201
Fuse, Slow-Blow, 3AG, 100 mA, 250V
Fuse, Time Delay, 5 mm x 20 mm, 50 mA, 250V
Connector, 8-socket, XLR, PCB-mount
Connector, 3-pin, XLR, PCB-mount
Connector, PhoneJack, 2-conductor, Single Closed Circuit
Ferrite Bead Ring
F202
J401
J402-J407
J501-J502
L401-L414, L501-L502
Q101, 0103, Q105, Q107, 0109,
Q111, Q113-Q115, 0202-Q203
Transistor, NPN
Shure 60601FT (Rohm T1S92)
Shure 60602FT (Rohm TIS93)
Q102, Q104, 0106, Q108,
Q110, Q112
Transistor, PNP
Q201
Transistor, NPN
Shure 60203FT (TI TIP30A)
Shure 60310FT
R162
Potentiometer, Reverse Audio Taper, 100k
Potentiometer, Audio Taper, 50k
Switch, Slide, DPDT (Power)
Switch, Slide, 4PDT (Mic/Line)
Switch, Slide, 4PDT (Phantom)
Transformer, Input
R163-R168
S1
Shure 60311FT
Shure 61401FA
S301, S303-S308
5302
Shure 60402FT (Alco MSS4200RG)
Shure 60403FT (Alco MSS4200R)
Shure 60501FT
T101
T102-T107
T201
Transformer, Output
Shure 60502FT
Transformer, Power
Shure 61501FA
U101
Integrated Circuit, Op Amp (selected for noise figure)
Integrated Circuit, Op Amp
Integrated Circuit, Quad Comp
Line Cord, AC
Shure 86A808A (Raytheon RC4156DB)
Shure 86A808A (Raytheon RC4156DB)
Shure 60604FT (Raytheon LM339)
Shure 60226FT
U102-U103
U104
W13
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5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
In U.S.A., Phone: 1-847-600-2000 Fax: 1-847-600-1212
In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414
In Asia, Phone: 1-852-2893-4290 Fax: 1-852-2893-4055
International Fax: 1-847-600-6446
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