Led Indicators; Volume Control - Sure Electronics TDA7498 User Manual

TABLE 2-3 OUTPUT CONNECTION
Connector Mark
Banana Connectors
Terminal blocks*
Note:

2.4 LED Indicators

This amplifier has 1 power LED indicator which is marked as "PWR (D3)". "Power (D3)"
will be illuminated in green when power-up.
FIGURE 2-4 LED INDICATOR

2.5 Volume Control

The on-board external extensible interface allows for the connection of a rotary encoder
board and a volume control board for volume control. The two boards are not provided
here but as another product (product No.: AA-AA11117) sold on Sure's webstore. If you
use the two boards, please set K1 and K2 of the on-board DIP switch SW1 OFF. Not
using these two boards, you may also adjust the volume by setting the DIP switch SW1.
The gain is factory pre-set to low. This can prevent chip from permanent damage caused
by overheat when input signal amplitude is over range. On the other conditions of gain
setting, it is recommended that the output signal amplitude is no larger than the power
© 2004-2011 Sure Electronics Inc.
J15
J13
J18
J16
J14
J17
1. Never connect more than one group of speaker to the audio output
Never connect CH1_OUT- 、 CH2_OUT- together since they belong to different
2.
NETs.
3. Refer to on-board descriptions for connection details.
Description
Negative Output of Channel 1
Positive Output of Channel 1
Negative Output of Channel 2
Positive Output of Channel 2
Output of Channel 1
Output of Channel 2
AA-AB32189 & AA-AB32174 & AA-AB34165
Hardware Detail
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