Techlogix TL-A70-40W Manuel utilisateur

User Manual

TL-A70-40W

40 Watt Power Amplifier

Version: TL-A70-40W _160826

TL-A70-40W User Manual

www.tlnetworx.com

Preface

Read this user manual carefully before using this product. Pictures shown in this manual

is for reference only, different model and specifications are subject to real product.

This manual is only for operation instruction only, not for any maintenance usage.

Trademarks

Product model and its logo are trademarks. Any other trademarks mentioned in this

manual are acknowledged as the properties of the trademark owner. No part of this

publication may be copied or reproduced without our prior written consent.

FCC Statement

This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. It has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a commercial installation.

Operation of this equipment in a residential area is likely to cause interference, in which

case the user at their own expense will be required to take whatever measures may be

necessary to correct the interference

Any changes or modifications not expressly approved by the manufacture would void the

user’s authority to operate the equipment.

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SAFETY PRECAUTIONS

To i ns ure th e b es t f ro m th e p ro d uc t , pl e as e rea d a ll i ns t ru ct io ns c are fu ll y b efo re u si ng

the device. Save this manual for further reference.

l Unpack the equipment carefully and save the original box and packing material for

possible future shipment

l Follow basic safety precautions to reduce the risk of fire, electrical shock and injury

to persons.

l Do not dismantle the housing or modify the module. It may result in electrical shock

or burn.

l Using supplies or parts not meeting the products’ specifications may cause damage,

deterioration or malfunction.

l Refer all servicing to qualified service personnel.

l To p reve nt f ire o r sh o ck hazard, do not expose the unit to rain, moisture or install this

product near water.

l Do not put any heavy items on the extension cable in case of extrusion.

l Do not remove the housing of the device as opening or removing housing may

expose you to dangerous voltage or other hazards.

l Install the device in a place with fine ventilation to avoid damage caused by overheat.

l Keep the module away from liquids.

l Spillage into the housing may result in fire, electrical shock, or equipment damage. If

an object or liquid falls or spills on to the housing, unplug the module immediately.

l Do not twist or pull by force ends of the optical cable. It can cause malfunction.

l Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to

the device before cleaning.

l Unplug the power cord when left unused for a long period of time.

l Information on disposal for scrapped devices: do not burn or mix with general

household waste, please treat them as normal electrical wastes.

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Table of Contents

1. Introduction ................................................................................................................. 1!

1.1 Introduction to TL-A70-40W .............................................................................. 1!

1.2 Features .............................................................................................................. 1!

1.3 Package Contents ............................................................................................... 1!

2. Panel Description ......................................................................................................... 2!

2.1 Front Panel ......................................................................................................... 2!

2.2 Introduction of Rear Panel .................................................................................. 3!

3. System Connection ...................................................................................................... 4!

3.1 Usage Precautions .............................................................................................. 4!

3.2 System Diagram .................................................................................................. 4!

3.3 Audio Signal Connection ..................................................................................... 4!

3.3.1 Audio Output ............................................................................................ 4!

3.3.2 Audio Inputs ............................................................................................. 5!

3.4 System Applications ............................................................................................ 6!

4. System Operations ....................................................................................................... 6!

4.1 Operations of Front Panel ................................................................................... 6!

4.1.1 Audio switching ........................................................................................ 6!

4.1.2 Volume/EQ controlling ............................................................................. 7!

4.2 Operations of IR Remote .................................................................................... 7!

4.3 Operations of Control Software .......................................................................... 9!

4.3.1 Connection with Computer ...................................................................... 9!

4.3.2 Installation/uninstallation of RS232 Control Software .............................. 9!

4.3.3 Running Environment ............................................................................. 10!

4.3.4 Function Settings .................................................................................... 10!

4.3.5 RS232 Communication Commands ........................................................ 11!

5. Specifications ............................................................................................................. 13!

6. Panel Drawing ............................................................................................................ 15!

7. Trou ble s h oot ing a nd Mai nte n ance ............................................................................. 16!

8. After-sales Service ..................................................................................................... 17!

TL-A70-40W User Manual

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1. Introduction

1.1 Introduction to TL-A70-40W

TL-A70-40W is a 40 Watt Power Amplifier (Class-D) with high-impedance output (70V

or 100V). It has [2] analog stereo inputs, [1] digital input, and [1] balanced microphone

input. It includes powerful functions including ducking, EQ control, and a mic mixer. The

microphone input MIC input supports condenser and dynamic microphones, or can be

set to balanced line audio input (for use with a wireless microphone receiver).

1.2 Features

l Mono audio output at 40Watt.

l Switchable between 70V and 100V.

l Ducking function for the microphone.

l 16 selectable IDs to control multiple units using one RS232 connection.

l 3-level MIC input, supports condenser microphone, dynamic microphone and

wireless microphone.

l MIC port can support balanced/unbalanced signal.

l Two stereo audio inputs and one digital audio input, switchable by button, IR remote

& RS232.

l Volume/Bass/Treble controllable by buttons, IR remote & RS232.

l Fast switching speed.

l Convection cooling, no fans.

l LED indicators for power and status.

l Anti-static case design to provide good protection for long-term and stable

performance.

1.3 Package Contents

Ø 1 x TL-A70-40W

Ø 2 x Mounting ears (separated from TL-A70-40W)

Ø 4 x Screws

Ø 1 x Pluggable Terminal Block

Ø 1 x RS232 cable

Ø 1 x Power adapter (DC 24V)

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Ø 1 x Power Cord

Ø 4 x Plastic Cushions

Ø 1 x User manual

Note: Ensure the product and the accessories are all included, if not, please contact with

the dealers.

2. Panel Description

2.1 Front Panel

Figure 1 Front Panel

No.

Name

Function

①

Audio

Input

Selection

Audio source selection

②

Audio

Control

Selector for adjusting the volume of the MIC, Line, or the level

of Bass and Treble with this button

③

Audio

Adjustment

To adjust or mute the corresponding audio.

▽: Turn down the volume (or Bass / Treble)

△

: Turn up the volume

MUTE: Mute the output

MIC

LINE

BASS

TREBLE

MUTE

INPUT SEL

12 3

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2.2 Introduction of Rear Panel

Figure 2 Rear Panel

No.

Name

Function

①

Power

Indicator

Turns red when power is connected.

②

Microphone

input port

3-pole captive screw connector for microphone input, switch

to select the microphone input, including 48V (for condenser

microphone), MIC (for dynamic microphone) and LINE (for line

audio).

③

Audio Inputs

3.5mm mini jack for stereo audio input, it can be connected

with audio source device such as iPod.

④

ID Code

16 codes range from 0 to F (hexadecimal), works with the PC

control software or RS232 control.

⑤

To c on n ec t w it h th e I R re ce i ve r, w or k s with the IR remote (not

included).

⑥

Power Port

To c on n ec t the power adapter (DC24V).

⑦

2 x RCA

Dual-mono audio input, which can be connected with audio

source device such as a DVD or PC.

⑧

Digital

Audio Input

Fiber optic connector for digital audio input (PCM format

only), it can be connected with a device with fiber port, such as

a BluRay player.

⑨

RS232

3-pole captive screw connector for serial control, it can be

connected with PC (Use a 3-pole captive to 9 pin female D

connector and serial control software) to control TL-A70-40W.

⑩

Audio

Output

Speaker output (Select 70V or 100V depending on the input

voltage of the speakers). COM is for grounding (GND).

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3. System Connection

3.1 Usage Precautions

1) Speakers must be connected before powering the amp on.

3.2 System Diagram

Figure 3 System Diagram

3.3 Audio Signal Connection

3.3.1 Audio Output

TL-A70-40W supports mono audio output, and the output voltage is 70V or 100V. 70V

and 100V systems are regulated by country safety regulations, you must adhere to all

local codes. The COM pin should be connected to the (-Minus) terminals of the speaker

run. The amplifier has a rated power at 40Watt, so the TL-A70-40W can be connected

with several speakers in parallel connection way (Total power mustn’t be more than

40Watt).

The following figure shows us how to connect with the speakers. Here we take the

100V/10W speakers for each as example.

MIC

PC 1

Blu-ray

DVD

Speaker

(100V/10W)

IR Remote

IR Receiver

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Figure 4 Audio Output Connection

Note: Speakers to be connected should be with constant impedance (with transformer),

as opposed to low impedance loads (like 4 or 8 ohm systems).

3.3.2 Audio Inputs

The TL-A70-40W provides 2 stereo audio inputs, one microphone input and one digital

fiber audio input. The following figure shows the audio input ports.

Figure 5 Audio Input Ports

Ø 48V phantom power input

When ‘48V” is selected on the switch the MIC input will provide a 48V phantom power.

This is usually used to supply power to a condenser microphone, Connection is: “+”

connects to positive, “-” connects to negative and “ ” to ground.

COM 70V 100V

Speaker Speaker Speaker Speaker

(100V/10W)

Slide switch, to select the MIC input mode,

includes MIC (dynamic microphone), 48V

(condenser microphone) and LINE (normal

audio or wireless microphone).

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Ø MIC input

When “MIC” is selected on the switch, the microphone input is used for connecting a

dynamic microphone. There are two different connections:

a) Unbalanced connection:

“+” and “” connects to ground, and “-” connects to signal.

“-” and “” connects to ground, and “+” connects to signal.

b) Balanced connection: “+” connects to positive, “-” connects to negative and “ ”

connects to ground.

Ø LINE input

When “LINE” is selected on the switch, the microphone input is used for connecting with

line audio or a wireless microphone output. There are two different connections:

a) Unbalanced connection:

“+” and “” connects to ground, and “-” connects to signal.

“-” and “” connects to ground, and “+” connects to signal.

b) Balanced connection: “+” connects to positive, “-” connects to negative and “ ”

connects to ground.

l Digital Audio Input

TL-A70-40W features a fiber optical port to connect a digital audio source device.

Notice: This digital audio input can support/decode PCM format signal only. If the

CD/DVD is DTS or AC3 (Dolby Digital) format, please set the player to PCM format

output before connecting to the TL-A70-40W.

3.4 System Applications

TL-A70-40W can be used in different applications, such as classrooms, small meeting

room, lecture halls, bars and hotels etc.

4. System Operations

4.1 Operations of Front Panel

The buttons provide control of volume, EQ control, and switching. The LED indicators

will show status. The following content introduces audio switching and EQ control in

detail.

4.1.1 Audio switching

There are three switchable audio inputs, one dual-mono RCA input, one 3.5mm jack

input, and one digital fiber audio input, switchable through the buttons as below:

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