2 X 50WATT CLASS D AUDIO
AMPLIFIER – TDA7492
USER’S GUIDE
©
2004-2013 Sure Electronics Inc.
AA-AS32171_Ver1.0_Page 4
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 DC9 - 24V. Please refer to
Chapter 3 for basic parameters
2.2 Switch Setting
When powered up, the machine is staying in standby mode with warm LED breathing
behind. After switched to operation mode the LED will turn off and the amplifier will start
to work.
Push on the volume knob to switch between operation mode and standby mode.
TABLE 2-1 SWITCH FUNCTION
State Function
LED
state
Standby
Amplifier not working
LED lighting in a breathing-effect state
Operation
Amplifier working
LED turn off
2.3 Input Connection
There are two input methods for this amplifier.
a) Audio signal input terminal (HP)
b) Audio signal input terminal (RCA)
Both terminals accept same audio signals and the HP terminal will override the RCA
terminal automatically.
FIGURE 2-3 INPUT CONNECTION
2.4 Output Connection
This product adopts -
a) Amplified output signal for headphone at the front panel
b) Banana socket with two output channels to output amplified audio signal. Pay
attention that LOUT+ and LOUT- are Left Output Channels, ROUT+ and ROUT- are
Right Output Channels.
The output level of both a) and b) can be adjusted via the volume control knob. The
headphone amplifier output will override the banana socket output automatically.
Chapter 2. Hardware Detail
