Shure The twin pro User manual

The Twin Prot

Wireless Microphone System User Guide

The Twin Pro Wireless Microphone System

User Guide

27C8642 (BG)

2002, Shure Incorporated Printed in U.S.A.

TABLE OF CONTENTS –– ENGLISH

Introduction English – 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description English – 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the T88 Wireless Receiver English – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the T2 Hand-Held Microphone Transmitter English – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the T1 Body-Pack Transmitter English – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tips and Troubleshooting English – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications and Information English – 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

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INTRODUCTION

The Twin ProtWireless System is the finest in its class. This

system will give you excellent performance for years to come.

System Contents

The Twin Pro Wireless System contains the following compo-

nents:

•One T88 dual channel wireless receiver

•Two transmitters available in one of three different combina-

tions (see System Combinations below)

•One PS20 (120 Vac) or PS20E (230 Vac) power adapter

•One plastic screwdriver for squelch adjustment

System Combinations

The Twin Pro system includes one of the following three trans-

mitter combinations:

•Two handheld microphone transmitters (includes two swivel

adapters and two anti-roll devices)

or

•Two body-pack transmitters with lavalier microphones

or

•One handheld microphone and one body-pack transmitter (in-

cludes one swivel adapter and one anti-roll device)

DESCRIPTION

T88 Wireless Receiver (Figure 1)

FIGURE 1

FRONT

BACK

1234

5

1234

6

77

5

1Power Indicators.

2RF Signal Indicators. Yellow indicates when RF (radio

frequency) signals are received from the transmitter.

3Audio Peak Indicators. These lights flicker occasionally

in normal operation. They are ON steadily when the audio

input is overloaded.

4Volume Controllers. Controls the audio output level.

5Telescoping Antennas. Receive signals from the trans-

mitters. Make sure the antennas are fully extended verti-

cally.

6Power Input Connector. Connects to a PS20 (120 Vac)

or PS20E (230 Vac) power adapter.

7Independent Audio Output Connectors. There is a sep-

arate, unbalanced 1/4-inch phone jack for each channel.

2

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T2 Handheld Microphone Transmitter (Figure 2)

FIGURE 2

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1POWER ON/OFF Switch.

2POWER Indicator.

3LOW BATTERY Indicator. Red light glows when you

have one hour or less of useful operating time; when this

light glows, change the battery.

4MIC ON/MUTE Switch. Lets you turn the microphone au-

dio on and off (muting the microphone).

5Audio Gain Control. Provides audio level adjustment to

accomodate different sound sources.

69V Alkaline Battery (shown installed). Provides power

to the microphone-transmitter. Typical battery life is 18

hours.

7Battery Cover. Unscrews for access to the 9V alkaline

battery and gain control.

T1 Body-Pack Transmitter (Figure 3)

FIGURE 3

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1Battery Compartment.

2Antenna.For best operation, the antenna must hang ver-

tically, and should not be coiled or bundled.

3Belt Clip.

4POWER Indicator.

5POWER ON/OFF Switch.

6Audio ON/MUTE Switch. Mutes the transmitter to pre-

vent unwanted sounds from being picked up by the receiv-

er without turning the transmitter off.

7LOW BATTERY Indicator. When this red light is glowing,

you have one hour or less of useful operating time; change

the battery.

8Audio Gain Control. Provides audio level adjustment to

accommodate different sound sources (e.g., speaking or

playing an instrument). The factory setting is at mid-point.

A small screwdriver is supplied to make adjustments.

9Microphone Input Connector. 4-Pin miniature connector

provides connection to a variety of lavalier and headset mi-

crophone cables, and the Shure WA302 instrument adapt-

er cable.

10 Lavalier Microphone. Condenser lavalier microphone

supplied with a mount that clips onto a tie, lapel, or acoustic

instrument.

3

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USING THE T88 WIRELESS RECEIVER

Connecting the T88 Wireless Receiver

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T88 BACK

AUDIO MIXER

or KARAOKE UNIT

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FIGURE 4

AC ADAPTER

1. Connect the receiver outputs for channels 1 and 2 to the

mixer or karoake unit using unbalanced, single-conduc-

tor, shielded cables with 1/4-inch phone plugs.

2. Connect the ac adapter to the POWER jack on the rear

panel of the receiver.

3. Plug the ac adapter into an appropriate power outlet.

Squelch Adjustment

FIGURE 5

DECREASE INCREASE

SQUELCH

The receiver squelch control is factory preset at the 12

o’clock position for optimum performance. No further ad-

justment is normally required. However, it is possible to ad-

just the squelch control to emphasize either signal quality or sys-

tem range.

•To raise the squelch threshold, rotate the control clockwise. This

causes the receiver to demand a higher quality signal (less noise

before muting), but it reduces the operating range.

•To lower the squelch threshold, rotate the control counterclock-

wise. This allows a lower quality signal through (more noise

before muting), but it extends the operating range.

USING THE T2 HAND HELD MICROPHONE

TRANSMITTERS

Operating the T2 Hand Held Microphone Transmitters

1. Press the POWER switch on the T88 receiver ON.

2. Slide the transmitter POWER ON/OFF switch to the ON

position. Check the battery level. If the LOW BATTERY indi-

cator is lit, see Transmitter Battery Installation.

3. Check the RF indicator on the T88 receiver to see if the

radio signal is being received.

4. Slide the MIC ON/MUTE switch to the ON position and

begin speaking or singing.

NOTE: If the red PEAK light on the receiver does not flicker

during the loudest sounds, the transmitter gain may need to

be increased. See the Transmitter Audio Gain Adjustment

section.

5. During the performance or presentation, slide the MIC

ON/MUTE switch to the MUTE position when the micro-

phone is not being used.

6. When the performance or presentation is over, slide the

transmitter POWER ON/OFF switch to the OFF position

to conserve battery power.

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FIGURE 6

T2

TRANSMITTERS

T88

RECEIVER

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Transmitter Battery Installation

1. Slide the transmitter POWER ON/OFF switch to the OFF

position.

2. Unscrew the transmitter battery cover to expose the bat-

tery terminals, as shown in Figure 7.

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FIGURE 7

3. Insert a fresh 9V alkaline battery into the battery compart-

ment as shown in Figure 7 (Duracell MN1604 recom-

mended and included with the system). A fresh 9V alkaline

battery should typically provide 18 hours of performance

time. A fully charged 8.4V NiCad battery should provide

2 hours of performance time. When the LOW BATTERY

light on the transmitter turns on, you have 1 hour or less

of useful battery life remaining; change the battery at your

first opportunity.

IMPORTANT: Carbon-zinc and zinc-chloride batteries will not

provide adequate power and are not recommended.

4. Replace the battery cover.

4

English –

Installing the Anti–Roll Device

The rubber anti-roll device prevents hand-held microphones

from rolling off onto the ground when they are set down on a flat

surface, such as a table or speaker cabinet. The anti-roll device

proves an important safeguard in stage situations where the T2

may be used by inexperienced microphone handlers.

To install the anti-roll device, simply slip it over the micro-

phone handle and slide it up so that it is positioned just below the

label under the microphone grille, as shown in Figure 8.

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FIGURE 8

Gain Adjustment

FIGURE 9

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The transmitter audio gain control has been factory preset to

provide satisfactory output. However, if the PEAK light on the

T88 receiver is constantly on or never on, the transmit audio lev-

el may require adjustment. Use the gain controls as follows to

adjust the equipment for the best sound quality.

To adjust the audio gain, locate the transmitter audio gain con-

trol and use the supplied screwdriver to adjust the control.

•If the PEAK light is always on, decrease the audio gain by turn-

ing the gain control counter-clockwise (while the vocalist is

singing or the musical instrument is being played) until the

PEAK light on the receiver flickers only occasionally.

•If the PEAK light is never on, increase the audio gain by turning

the gain control clockwise (while the vocalist is singing or the

musical instrument is being played) until the PEAK light on the

receiver flickers only occasionally.

USING THE T1 BODY-PACK TRANSMITTERS

Operating T1 Body-Pack Transmitters

FIGURE 10

T88 RECEIVER

LAVALIER

MIC

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NOTE: The T1 body-pack system is designed for use with oth-

er equipment, such as lavalier microphones, guitars, headset

microphones, etc. See your Shure dealer for details on order-

ing the proper equipment for your needs.

1. Clip the T1 body pack transmitter to your belt or guitar strap.

2. Connect the lavalier microphone, headset or instrument

adapter cable to the body-pack transmitter.

3. Turn the transmitter POWER switch ON. Check Power/

Battery fuel gauge.

4. Check the RF Signal Indicator on the T88 receiver to

see if the RF signal is being received.

5. Slide the transmitter ON/MUTE switch to the ON position

and begin speaking or playing your instrument.

NOTE: If the red PEAK light on the receiver does not flicker

during the loudest sounds, the transmitter gain may need to

be increased. See the Transmitter Audio Gain Adjustment

section.

6. During the performance or presentation, slide the ON/

MUTE switch to the MUTE position when the system is

not being used.

7. When the performance or presentation is over, slide the

transmitter POWER ON/OFF switch to the OFF position

to conserve battery power.

5

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Transmitter Battery Installation

1. Slide the transmitter POWER ON/OFF switch to the OFF

position.

2. Press down on the OPEN side of the battery compart-

ment cover, slide it back and flip it open, as shown in Fig-

ure 11.

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FIGURE 11

3. Insert a fresh 9V alkaline battery into the battery compart-

ment as shown in Figure 11 (Duracell MN1604 recom-

mended and included with the system). A fresh 9V alkaline

battery should typically provide 18 hours of performance

time. A fully charged 8.4V NiCad battery should provide

2 hours of performance time. When the red LOW BAT-

TERY light on the transmitter glows, you have 1 hour or

less of useful battery life remaining; change the battery

at your first opportunity.

IMPORTANT: Carbon-zinc and zinc-chloride batteries will not

provide adequate power and are not recommended.

4. Replace the battery cover.

Transmitter audio gain adjustment

FIGURE 12

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The transmitter audio gain control has been factory preset to

provide satisfactory output. However, if the PEAK light on the

T88 receiver is constantly on or never on, the transmit audio lev-

el may require adjustment. Use the gain controls as follows to

adjust the equipment for the best sound quality.

To adjust the audio gain, locate the transmitter audio gain con-

trol and use the supplied screwdriver to adjust the control.

•If the PEAK light is always on, decrease the audio gain by turn-

ing the gain control counter-clockwise (while the vocalist is

singing or the musical instrument is being played) until the

PEAK light on the receiver flickers only occasionally.

•If the PEAK light is never on, increase the audio gain by turning

the gain control clockwise (while the vocalist is singing or the

musical instrument is being played) until the PEAK light on the

receiver flickers only occasionally.

TIPS AND TROUBLESHOOTING

Tips for getting the best performance

•Maintain a line-of-sight between the transmitter and receiver

antennas.

•Keep the receiver and antennas away from large metal ob-

jects.

•Avoid placing the receiver near computers or other RF gener-

ating equipment.

•Point the receiver antennas straight up.

•Avoid placing the receiver in the bottom of an equipment rack

unless the antennas are remotely located.

Troubleshooting

Some common problems and their solutions are identified in

the table below. If you are unable to solve a problem, contact your

dealer.

Problem Solution

No sound; RF light(s)

not glowing. •Make sure the transmitter

POWER switch is ON and the re-

ceiver is plugged into a power

source.

•Check battery.

•Check receiver squelch setting.

•Check receiver antenna connec-

tion(s).

•Make sure antennas are in line of

sight of transmitter.

No sound; RF and Audio Level

meter lights glowing. •Turn up receiver audio VOLUME

control.

•Check for proper connection be-

tween receiver and karaoke unit.

•Talk into microphone and ob-

serve receiver audio level lights.

If they glow, the problem is else-

where in the sound system.

Received signal is noisy or con-

tains extraneous sounds with

transmitter on.

•Check battery.

•Remove local sources of RF inter-

ference.

•If using a guitar or other instru-

ment, check connections.

•Two transmitters may be operating

on the same frequency. Locate

and turn one off.

•Signal may be too weak. Reposi-

tion antennas. If possible, move

them closer to transmitter.

Noise from receiver with trans-

mitter off. •Adjust receiver squelch control.

•Remove local sources of RF inter-

ference.

•Reposition receiver or antennas.

Momentary loss of sound as

transmitter is moved around

performing area.

•Reposition receiver and perform

another “walkthrough” test and

observe the RF indicators. If au-

dio dropouts persist, mark these

“dead spots” in performing area

and avoid them during perfor-

mance.

6

English –

SPECIFICATIONS AND INFORMATION

Specifications

RF Carrier Frequency Range

169.445 to 216.000 MHz

Working Range

100 m (approximately 300 ft) under typical conditions.

Audio Frequency Response

50 to 15,000 Hz, ±2 dB.

Audio Output Level (±15 kHz deviation, 1 kHz tone)

1/4–inch connector (into 3 kΩload):–8.8 dBV (Hi Z)

Audio Connectors

Model: T88 T1

Connector

Type: 1/4-inch

phone plug

(female)

4-Pin miniature

connector

(TA4F)

Configuration: active

unbalanced active

unbalanced

Actual

Impedance: 3 kΩ18 kΩ

with lavalier

Maximum

Input Level: —12.2 dBu

Maximum

Output Level: 0 dBu —

Assignments: Tip = hot

sleeve = ground

pin 1= ground

pin 2 = +5 V

pin 3 = audio

pin 4 = through

20 kΩresistor

to ground

Phantom Power

Protection: yes —

Voltage: —+5 V

27 pF

20K Ω

27 pF

+5 V

AUDIO

GROUND

T1 MIC JACK BOARD

2

1

4

500 Ω

MICROPHONE

ELEMENT

3

2

1

3

4

NOTE: LAVALIER MIC TIES PINS 3 AND 4 TOGETHER; GUITAR CABLE DOES NOT.

T1 Pin Connections

T88 Output Wiring (1/4-in. male plug to output connector)

SLEEVE

TIP +

Gain Adjustment Range

T1: 40 dB

T2/14A: 25 dB

RF Power Output

T1, T2/14A: 50 mW maximum (complies with FCC and IC

regulations)

RF Sensitivity

–101 dBm, typical

System Distortion (ref. ±15 kHz deviation, 1 kHz modulation)

0.7%

Power Requirements

T1, T2/14A: 9V alkaline battery (Duracell MN1604 recom-

mended). 8.4V Nicad (rechargeable) are optional but not

recommended.

T88: 12 Vdc (PS20, 120Vac; PS20E, 230 Vac Power Supply)

Current Drain

T1: 31 mA average (40 mA max), T2/14A: 30 mA average (35

mA max)

T88: 160 mA average (195 mA max)

Operating Temperature Range

-20°to 50°C (-4°to 122°F). NOTE: Battery characteristics

may limit this range.

Overall Dimensions

T1: 82.6 mm H x 63.5 mm W x 26.2 mm D

T2/14A: 241 mm L x 50.8 mm Dia.

T88: 44 mm H x 349 mm W x 194mm D

Net Weight

T1: 79.5 g without battery

T2/14A: 294.8 g without battery

T88: 435 g

Certification

T1, T2: Type-accepted under FCC Parts 90 and 74; IC certi-

fied under TRC-78

T88: Approved under the Notification provision of

FCC Part 15

PS20 Power Supply: Conforms to safety standard UL1310.

Canada/CSA 22 2 No. 223.

PS20E Power Supply: Conforms to safety standard EN 60065

PS20UK Power Supply: Conforms to safety standard EN

60065.

Furnished Accessories

Plastic Screwdriver 65A1659. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Swivel Adapter (hand-held only) WA370A. . . . . . . . . . . . . . . . .

Anti-Roll Device (hand-held only) 66A8043. . . . . . . . . . . . . . . .

Optional Accessories

Microphone Adapter Cable (T1) WA310. . . . . . . . . . . . . . . . . .

4-Pin Female Mini Connector TA4F (T1) WA330. . . . . . . . . . .

In-Line Audio Switch (T1) WA360. . . . . . . . . . . . . . . . . . . . . . . .

1.8 Meter (6 ft.) Receiver-Mixer Cable WA410. . . . . . . . . . . . .

6.1 Meter (20 ft.) Antenna Extension Cable WA421. . . . . . . .

Replacement Parts

14A Cartridge with Grille R200. . . . . . . . . . . . . . . . . . . . . . . . . . .

AC Adapter PS20 (120 Vac)/PS20E (230 Vac). . . . . . . . . . . . .

Grille (T2/14A) RK143G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Belt Clip (T1) 53A8247A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1/4-Wave Antenna 90A8380. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

English –

Licensing Information

Changes or modifications not expressly approved by Shure

Inc. could void your authority to operate the equipment. Licens-

ing of Shure wireless microphone equipment is the user’s re-

sponsibility, and licensability depends on the user’s classifica-

tion and application, and on the selected frequency. Shure

strongly urges the user to contact the appropriate telecommu-

nications authority concerning proper licensing, and before

choosing and ordering frequencies other than standard frequen-

cies.

Warranty Information

Shure Incorporated (“Shure”) hereby warrants that these

products will be free from defects in material and workmanship

for a period of one year from the date of purchase. At its option,

Shure will repair or replace the defective product and promptly

return it to you, or refund the purchase price. Retain proof of pur-

chase to validate the purchase date and return it with any war-

ranty claim. If you believe this product is defective within the

warranty period, carefully repack the unit, insure it, and return it

postpaid to: Shure Incorporated

Attention: Service Department

222 Hartrey Avenue

Evanston, IL 60202-3696 U.S.A.

Telephone: (847) 866-5730

For service outside the United States, return the product to

any authorized Shure Distribution Center.

All claims of defects or shortage should be directed to the

above address. Please furnish model number, operating fre-

quency, and date, place and proof of purchase (such as a copy

of your sales receipt) to establish warranty. Your letter should

include all pertinent details including applicable model or part

numbers and a brief description of the problem. Do not mail any

units or parts to Shure unless requested to do so by Shure’s Ser-

vice Department. Any returned items must have prior authoriza-

tion. Unauthorized returns are delayed in handling; these de-

lays can be avoided by contacting Shure in advance and furnish-

ing the necessary information.

Shure reserves the right to make design changes and product

improvements on any previously manufactured products.

Shure also reserves the right to ship new and/or improved prod-

ucts which are similar to the form, fit and function of the originally

ordered products.

SHURE Incorporated Web Address: http://www.shure.com

222 Hartrey Avenue, Evanston, IL 60202–3696, U.S.A.

Phone: 847-866–2200 Fax: 847-866-2279

In Europe, Phone: 49-7131-72140 Fax: 49-7131-721414

In Asia, Phone: 852-2893-4290 Fax: 852-2893-4055

Elsewhere, Phone: 847-866–2200 Fax: 847-866-2585

Shure The Twin Pro User manual

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