Sure Electronics TA2024 User manual

2 X 15Watt Class-D Audio
Amplifier - TA2024
User’s Guide
©2004-2010 Sure Electronics Inc. AA-AB32159_Ver1.0

2 X 15Watt Class-D Audio Amplifier - TA2024
©2004-2010 Sure Electronics Inc. AA-AB32159_Ver1.0
To keep the product in a best working condition and having a long service time, please operate it according to
the relevant steps. The warranty lapses if the product is damaged because of incorrect use and your
negligence.
Warning: Never immerse the product in the rain or any other humid environment to prevent the fire or
electric shock.
Safety Precautions:
1. Carefully handle the power cord
Do not damage or deform the power cord, or it will cause the electric shock or abnormal
working.
Removing the power cord from the socket, please confirm what you’ve hold is the socket
not the power cord.
2. Never open the cover
Do not open the cover in order to prevent the electric shock. Any problem, please contact
us.
3. Never put other things in the product
Do not put the metal in the product to prevent the liquid, or it will cause electric shock or
abnormal working.
Operation Precautions:
1. Care the power cord
When you pull out the plug from the socket, do not pull the power cord but hold the plug.
2. Prevention of the high temperature
Never put the product in the place exposed by the sun or near to the heating equipment.
3. Caution of the rack or chassis installation
Never put this product in a closed rack.
4. Never open the cover
It’s dangerous to open the bottom chassis or put your hand in the chassis, so do not open
it. If this product has something wrong, pull out the power plug immediately and contact us.
5. Protect the chassis
Avoid spraying insecticides near the product. Do not wipe the product with liquid like
gasoline, water or other solvents, which easily cause the change of the quality or the color.
Use soft cloth to clean dust. Please follow the instructions in this user’s manual when you
use the chemical-treated cloth.
6. Prevent sundries from falling into this product
Be especially careful to prevent the sundries like needles, hairpins, coins from falling into
this product.
7. When you go out
If you don’t use this product in a long time, e.g. when you go out for a trip, you must pull out
the plug from the power socket.
8. Take care with humidity, water and dust
Do not put this product in the highly humid position or the position with much dust. Do not
place vases or something with water in on this product.
9. Please keep the manual well
After reading this instruction, please keep it well along with the warranty card，which will be
helpful when there are faults.
Attention please. In order to explain clearly to users, the graphic representation in this
user’s manual may be some different from the real device.

2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
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Table of Contents
Chapter 1. Overview ..........................................................................................................1
1.1 Overview.............................................................................................................. 1
1.2 Accessory............................................................................................................ 1
1.3 Features............................................................................................................... 1
1.4 Applications......................................................................................................... 2
1.5 Components and Function................................................................................. 2
1.5.1 Front panel................................................................................................................ 2
1.5.2 Back panel ................................................................................................................ 3
1.5.3 Connection................................................................................................................ 3
Chapter 2. Hardware Detail ...............................................................................................5
2.1 Power Connection............................................................................................... 5
2.2 Switch Setting ..................................................................................................... 5
2.3 Input Connection................................................................................................. 6
2.4 Output Connection.............................................................................................. 6
2.5 Volume Control.................................................................................................... 7
2.6 LED Indicators..................................................................................................... 7
Chapter 3. Electrical Characteristics ...............................................................................8
3.1 BasicParameters................................................................................................ 8
3.2 Fault Tracing........................................................................................................ 8
Chapter 4. Mechanical Drawing......................................................................................10
Chapter 5. Contact Us .....................................................................................................11

2 X 15Watt Class-D Audio Amplifier - TA2024
©2004-2010 Sure Electronics Inc
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NOTES:
Product Version ：Ver 1.0
Document Version ：Ver 1.0

2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
Chapter 1. Overview
1.1 Overview
Welcome to use this self-made 2*15W digital control audio amplifier board. This product
is well-known for its small size, portable, elegant and its outer casing fully made from
aluminum alloy which makes it tough and durable. As an ideal Class-D audio power
amplifier and integrated with TA2024 which is currently popular around the world, it not
only provides dream sound but also has high efficiency, thus it can dissipate the heat
after long-time working to ensure that the amplifier can works in a stable condition for
long time.
AA-AB32159 integrates a high-quality rotary encoder which employs high-quality digital
volume control IC ensuring precise shaft rotation and accurate volume adjustment.
AA-AB32159 supports dual-channel amplification and each channel is rated at 15W.
With built-in MCU, this product can provide over/under voltage protection, low current
protection and display LED state.
This product can be powered by any DC power supply ranging from 9 to 14V. You can
use it to drive any 4or 8passive speakers.
FIGURE 1-1 OVERVIEW
1.2 Accessory
Please check carefully the packing box, which contains the things as follows:
1. One main power amplifier
2. One power adapter
3. One user’s manual
1.3 Features
1 Ideal Class-D power amplifier
2 Range of power supply: DC9V-14V
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2 X 15Watt Class-D Audio Amplifier - TA2024
3 Fully made from aluminum alloy, compact, pleasing, fashionable and durable
4 High-quality digital volume control IC and original TA2024 chip ensures long time use
5 High input sensitivity
6 “Audiophile” Quality Sound:
0.1% THD+N @ 9W, 4;
0.1% THD+N @ 6W, 8;
7 High Power
15W @ 4, 10% THD+N
10W @ 8, 10% THD+N
8 High Efficiency
81% @ 15W, 4
90% @ 10W, 8
9 Suitable for the input of many kinds of audio signals
10 MCU based, more fashionable and attractive, creating dynamic LED breathing effect
11 Over / under voltage turn off
12 Over current protection
13 Over temperature protection
1.4 Applications
1 Home Theater
2 Powered Subwoofers
3 Powered DVD Systems
4 Mini/Micro Systems
5 MP3, Video CD output Amplification
1.5 Components and Function
1.5.1 Front panel
Please refer to the corresponding pages for the detailed information.
FIGURE 1-3 (POWER SWITCH, VOLUME KNOB)
1—powerswitch 2—volume knob
©2004-2010 Sure Electronics Inc
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Overview
1.5.2 Back panel
FIGURE 1-4 (POWER INPUT, SPEAKER OUTPUT AND AUDIO SIGNAL INPUT)
3—speaker output terminal 4—audio signal input terminal
5—serialnumber 6—power input
1.5.3 Connection
©2004-2010 Sure Electronics Inc.
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2 X 15Watt Class-D Audio Amplifier - TA2024
FIGURE 1-5 CONNECTING SCHEMATICS
©2004-2010 Sure Electronics Inc
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2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
Chapter 2. Hardware Detail
2.1 Power Connection
A voltage-regulated power of high-performance is necessary to provide basic and
enough power so that this product could work stably, or any problem caused by poor
power is out of the warranty.
This product works at DC12V. Please refer to Chapter 3 for basicparameters
Please connect the power voltage regulator with the audio power amplifier according to
the following schematics:
FIGURE 2-1 POWER CONNECTION SCHEMATIC
2.2 Switch Setting
When the switch is ON, the machine is working and LED is lighting all the time. When
the switch is OFF, the machine is in standby mode and LED shows breathing-effect
lighting.
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2 X 15Watt Class-D Audio Amplifier - TA2024
FIGURE 2-2 SWITCH SETTING
TABLE 2-1 SWITCH FUNCTION
State Function LED state
ON Amplifier working LED always lighting
OFF Amplifier not working LED lighting in a breathing-effect state
2.3 Input Connection
This product adopts RCA socket to input audio signal. You need a 3.5 to RCA cable
which we do not provide in the accessory.
FIGURE 2-3 INPUT CONNECTION
2.4 Output Connection
This product adopts Banana socket with two output channels to output audio signal. Pay
attention that LOUT+ and LOUT- are Left Output Channels, ROUT+ and ROUT- are
Right Output Channels.
©2004-2010 Sure Electronics Inc
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Hardware Detail
FIGURE 2-4 OUTPUT CONNECTION
Note: LOUT- and ROUT- are not in the same net and can not be connected together.
Moreover, LOUT+, LOUT-, ROUT+, ROUT- can not be connected to the ground.
2.5 Volume Control
We adopt digital volume potentiometer of high-quality which can adjust the volume
precisely after long-time use
FIGURE 2-5 VOLUME CONTROL
2.6 LED Indicators
This product is based on MCU which controls the indicators to display dynamic LED
state and make this product more fashionable and attractive. Please refer to table 2-1 for
details.
©2004-2010 Sure Electronics Inc.
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2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
Chapter 3. Electrical Characteristics
3.1 Basic Parameters
Basic parameter tested @DC12V 4ohm (except for the parameters marked with *)
TABLE 3-1 BASIC PARAMETERS
Parameter Min Typical Max
Power voltage 9V 12V 14V
Input Sensitivity 642mV 662mV 680mV
Frequency - 20Hz-20KHz(±3dB) -
9W@4ohm, THD+N<0.1%
12W@4ohms, THD+N<1%
Output power*
（VCC = 12V, RL = 4）-
15W@4ohms, THD+N<10%
-
Output power *
（VCC = 12V, RL = 8）- 10W @ 8ohms,
THD+N<10% -
（THD+N）-
0.03% THD+N @ 9W, 4
0.1% THD+N @11W, 4
0.1% THD+N @6W, 8
-
Efficiency -
84% @ 15W, 4
90% @ 10W, 8-
Signal/Noise Ratio 90dB(A weighted) 90dB(A weighted) -
Minimum Load
Impendence 3.2 ohms 4 ohms -
Input Impendence 10K 20K -
Power Gain 25dB 27.6dB -
Working Temperature 0℃25℃55℃
Note: *The chip specifications by Tripath.
放前，再次检查播放机是否发生故障
3.2 Fault Tracing
If the amplifier does not work well, please read the following table:
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2 X 15Watt Class-D Audio Amplifier - TA2024
©2004-2010 Sure Electronics Inc.
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TABLE 3-2 CORRECTIVE MAINTENANCE
Situation Solutions
No sound 1. Check if it is connected with the power and confirm that the voltage regulator works
well. If not, connect the power according to the schematics.
2. Check if the signal input cable is connected correctly and if there is signal. If not,
connect the lines according to the schematic and input the audio signal.
3. Check if the output cable is damaged and if the speaker works or not. If not, change
the output cable and the speaker.
4. Check if the LED keeps on lighting or not. If not, restart it and ensure that the LED
displays breathing effect when the switch is OFF. If it still doesn’t work, remove the
power and contact us.
Suddenly no
sound when
the product is
working
1. Check if the product has worked for long time or if the audio signal is too high. If it is,
turn off the power and turn it on again.
LED off 2. Check if it is connected with the power and confirm that the voltage regulator works
well or not. If not, correctly connect it to the power according to the schematics.
3. Check if the product works well or not. If there’s sound outputted, it’s that the LED
has been damaged.
LED on 1. Check if the product works well or not. If not, allocate the switch to OFF, remove the
power, and then plug the power, finally turn on the switch.
Note: If the problems above still cannot be solved, maybe the product has something wrong. Now
please turn off the power, pull out the power cord from the socket and then contact us. Please refer to
chapter five for our contact information.

2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
Chapter 4. Mechanical Drawing
FIGURE 4-1 FRONT AND BACK PANELS
FIGURE 4-2 SIDE VIEW
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2 X 15WATT CLASS-D AUDIO
AMPLIFIER - TA2024
USER’S GUIDE
©2004-2010 Sure Electronics Inc.
Chapter 5. Contact Us
Sure Electronics Co., Ltd.
East zone, 3F, Building 6
Jingang Technology Innovation Center
No.108 Ganjiabian Rd (ZIP: 210000)
Qixia District
Nanjing
P.R.China
Tel: [phone]
Fax: [phone]
Website: www.sure-electronics.com
Email: [e-mail]
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