Shure FP16 Schematic

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THE SOUND OF THE PROFESSIONALS

222 HARTREY AVE., EVANSTON, IL 60202-3696 U.S.A. AREA CODE (312)866-2200 • CABLE: SHUREMlCRO

TELEX: 4330191 • FAX (312)866-2279

PROFESSIONAL PRODUCTS

GENERAL

The FP16 is a 1-input, 6-output, compact, selfcontained 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 FP16 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

Wide-range audio frequency response

Up to 90 dB gain

Low noise, hum and distortion

l Protected against damage from input overload and

shorted outputs; protected against RFI and mechanically protected against incorrect battery insertion

Transformer-coupled XLR input connector is switchable to low-impedance microphone or line level

l Phantom (simplex) power for condenser micro-

phones available at input

l Six isolated, transformer-coupled XLR outputs are

switchable to low-impedance balanced microphone or 600-ohm balanced line level

l Link input and output jacks permit “ganging” of

FP16s for additional outputs, or adding external equipment such as equalizers, compressors or limiters

l Recessed input gain control with normal and

overload LED indicators

Recessed individual output channel gain controls

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

l Reliable operation over wide temperature and

humidity extremes

Rack-mountable with accessory rack mount kit

SPECIFICATIONS

Frequency Response

30 to 20,000 Hz, ±2 dB

Voltage Gain

INPUT

Mic Line Link 20 dB -30 dB

(at 1 kHz)

Inputs

INPUT

FOR USE WITH

Mic Line Link

*Dependent on input control setting.

150 ohms Less than 10k 66k Less than 5k

Outputs

OUTPUT

FOR USE WITH

Mic Line Link

150 ohms 600 ohms 600 ohms or greater

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 (lowimpedance microphone, 150 ohms, 20 to 20,000 Hz) in-

to 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, in-

put control down, 20 to 20,000 Hz)

(ref 1 kHz)

OUTPUT

LINE

90 dB 40 dB

IMPEDANCE (at 1 kHz)

MICROPHONE LINK

ACTUAL

24k

ACTUAL LEVEL AT 1 kHz

0.5 ohms 180 ohms 100 ohms or less

40 dB 70 dB

-10 dB 20 dB

INPUT CLIPPING

LEVEL AT 1 kHz

-62 to -6 dBV*

-12 to +44 dBV*

+8 dBV

OUTPUT CLIPPING

- 34 dBV + 16 dBV + 16 dBV

Printed in U.S.A.

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Distortion

0.4% THD, 30 to 20,000 Hz at + 15 dBm output; 0.5% or less IM distortion 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, will cause no damage; microphone 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 input 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 nosignal, 22 mA typical at 0 VU (+4 dBm) output; 21.5 Vdc minimum; battery life approximately 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: Storage:

-18° to 57°C (0° to 135°F)

-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 lb 1 oz) Packaged: 3.15 kg (6 lb 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 FP16 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 signal level is approximately

20 dB below clipping. Overload LED: indicates when input signal level ap-

proaches clipping. Three-Pin XLR

1-6 Output

Connectors: provide for connection to either low-impedance microphone or linelevel inputs of power amplifiers, mixers, or other signalprocessing 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 (simplex) power to pins 2 and 3 of the input connector for use with condenser microphones. IMPOR-

TANT: Make certain any condenser microphone used is compatible with the FP16 simplex circuit, and that the

FP16 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 phantomsimplex 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-level input signals.

Link In, Out

Phone Jacks: provide for connecting more distribution amplifiers for additional outputs, or adding external equipment such as equalizers, compressors, or limiters. When connecting two or more FP16s together for additional outputs, connect the Link Out jack of the “master” unit to the Link In jacks of the others. Any number of FP16s 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 FP16 by connecting the FP16 Link Out jack to the external unit’s input, and the external unit’s output to the FP16 Link In jack.

Signals at the Link jacks are typically 10 dB below line level. The Link In input impedance is greater than 20 kilohms and may be considered a bridging impedance.

INSTALLATION AND OPERATION Battery Operation

In addition to 120- or 240-volt ac operation, the FP16 can be operated from an internal battery pack. Current drain is typically 22 mA at +4 dBm output level. Battery operation is recommended 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 FP16 at full rated output. Use alkaline batteries for maximum life. Duracell MN1604 or Eveready 522 are recommended. Battery life is approximately 20 hours at +4 dBm continuous use. Note that simplex power loading will increase battery drain.

With batteries in the battery compartment, the FP16 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 amplifiers, mixers, etc. Set each Mic/Line switch for the appropriate signal level.

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Connect additional distribution amplifiers or add external equipment using the FP16 Link jacks (see Controls and Connectors). A common ground connection can be established using the rear-panel Ground binding

post.

Connect the line cord to a 120 Vac ± 10%, 50/60 Hz source if the FP16 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 FP16.

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 adequate signal feed to the following equipment.

Telephone Interconnection

When using the FP16 connected directly to a telephone line, check to see whether the telephone company requires an interface coupler between the FP16 and the telephone line. If a coupler is required, make certain the coupler selected 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 FP16 and attached to most telephone handsets.

Telephone Line Surge Protection

When using the FP16 connected directly to a telephone line subject to lightning-induced voltage surges, the following part (commercially available) can be installed across the LINE OUT terminals to provide additional components: Metal Oxide Varistor, General Electric Co., Type No. V22ZA1.

protection for output circuit

3-½ in. (483 mm x 89 mm) precut rack panel and

necessary hardware for rack-mounting the FP16 with its cover in place and end caps removed in a standard 19” (483 mm rack panel.

SERVICE

WARNING

Voltages in this equipment are hazardous to life. Refer servicing to qualified service personnel.

The FP16 can be disassembled as follows. Remove four screws securing 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. (It is not necessary to remove the end caps from the cover for access to the chassis.)

240 Vac Operation

To change the FP16 operating voltage from 120 Vac to 240 Vac, follow these steps.

Locate the Power board.

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.

Insert the T50mA/250V fuse (packaged with the FP16) in the fuseholder marked F202.

Replace the ac line cord (if necessary) with one designed for the 240-volt source. If the FP16 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:

U.S., Canada

Europe

“Live” or

“Hot”

Black White Brown

Neutral

Blue

Earth or

Ground

Green Green/Yellow

ACCESSORIES

The Model A16R Rack Panel Kit consists of a 19 in. x

Mark the FP16 rear panel with the new operating

voltage.

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SHURE PART AND/OR

XLB-3-31PCV

Shure 60217FT; Cannon

COMMERCIAL ALTERNATE

XLB-3-32PCV

Rohm TIS92

Stackpole 57-3425

Shure 60601FT;

Rohm TIS93

Shure 60602FT;

Shure 60203FT; TI TIP30A

Shure 60310FT

Shure 60311FT

MSS4200RG

Shure 60401FT

Shure 60402FT; Alco

MSS4200R

Shure 60501FT

Shure 60403FT; Alco

Shure 60502FT

Shure 60503FT

RC4156DB

Shure 86A808A; Raytheon

LM339

Shure 60226FT

Shure 60604FT; Raytheon

Connector, 3-socket, XLR, PCS-mount Shure 60216FT; Cannon

Connector, 3-pin, XLR, PCB-mount

Connector, Phone Jack, 2-conductor, Shure 60218FT

REFERENCE

DESIGNATION DESCRIPTION

J402-J407

J401

SHURE PART AND/OR

503D476F035ND

Shure 60101FT; Sprague

COMMERCIAL ALTERNATE

J501-J502

Shure 60104FT; Sprague

502D226G050CE1C

Shure 60105FT;

Ferrite Bead Ring Shure 60219FT;

Single Closed Circuit

Panasonic ECE-A35Z4R7

Transistor, NPN

L401-L414,

L501-L502

Q101, Q103, Q105,

Q107, Q109, Q111,

Q113-Q115, Q202-

Sprague 503D107F050PD

Shure 60107FT;

Shure 60108FT; Sprague

Q203

503D477M035PE

Potentiometer, Reverse Audio Taper,

100k

Transistor, PNP

Transistor, NPN

Q102, Q104, Q106,

Q108, Q110, Q112

Q201

503D337F063QG

Shure 60111FT; Sprague

Potentiometer, Audio Taper, 50k

R162

R163-R168

503D106F035LA

Shure 60112FT; Sprague

Shure 60201FT;

Tl/GE 1N4148

Switch, Slide, DPDT (Power)

Switch, Slide, 4PDT (Mic/Line)

Switch, Slide, 4PDT (Phantom)

Transformer, Input

Transformer, Output

S302

S301, S303-S308

Motorola 1N4002

Shure 60202FT; Motorola

T101

1N5239

Shure 60204FT; Rohm

SLR34MG3

T102-T107

SLR34YY3

Shure 60205FT; Rohm

Integrated Circuit, Op Amp (selected

for noise figure)

Integrated Circuit, Op Amp

Integrated Circuit, Quad Comp

Transformer, Power

U101

T201

Shure 60206FT; Rohm

U102-U103

SLR34OR3

Shure 60207FT; Littelfuse

313.010

Line Cord, AC

U104

W13

Shure 60208FT; Littelfuse

218.050

DESCRIPTION

Capacitor, Electrolytic, 47 µF, 35V

Capacitor, Electrolytic, 22 µF, 35V

Capacitor, Electrolytic, 4.7 µF, 35V

REFERENCE

DESIGNATION

REPLACEMENT PARTS LIST

C101

C104, C107, C130

C105, C108, C111,

Capacitor, Electrolytic, 100 µF, 35V

C114, C117, C120,

C119, C122, C125,

C123

C110, C113, C116,

Capacitor, Electrolytic, 470 µF, 35V

Capacitor, Electrolytic, 330 µF, 63V

C127, C133

C131, C134

C202

Diode, Computer, 75V

D101-D108

C204, C205 Capacitor, Electrolytic, 10 µF, 35V

Light-Emitting Diode, Green

Silicon Rectifier, 100V, 1/2A

Zener Diode, 9V, 1/2W

D201-D204, D206

D207

D205

Light-Emitting Diode, Yellow

D601

D701

Light-Emitting Diode, Red

Fuse, Slow-Blow, 3AG, 100 mA, 250V

Fuse, Time Delay, 5 mm x 20 mm, 50

mA, 250V

F201

D702

F202

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8233-2/969-2

8237-1/975-2

8234-1/970-2

8235-1/971-2

8236-1/972-2

8232-1/968-2

8238-1/976-2

MODEL FP16 PRINTED CIRCUIT BOARDS – COMPONENT SIDE

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D5002-11-3

MODEL FP16 CIRCUIT DIAGRAM