Led Indicators; Volume Control - Sure Electronics TK2050 User Manual

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potentiometers on board since we have already regulated that offset to a range of +/- 10mV. You may

refer to the connection diagram for the location of potentiometers.

Warning:

Adjusting these potentiometers may damage your speakers.

2.8 LED Indicators

This amplifier board has two indicators, one of which is marked as "Power (D3)"; another is "Hmute

(D4)". The power indicator will be illuminated in green on power-up and "Hmute" will be illuminated in

blue when you mute the amplifier audio output or amplifier board error occurs. Please refer to the

TK2050 Data Sheet for a complete description of HMUTE. Please refer to the Board Connection

Diagram for the LED locations on amplifier board.

This amplifier board doesn't include any potentiometer which could be used to manually adjust the

volume control. Users may use the volume control of the sound source (such as MP3 player or PC) to

adjust the loudness of the audio output. If you need a potentiometer, you may install one (50Kohm) by

yourself, but it may void the warranty at the same time. Another reason for not installing potentiometer

is the signal attenuation it may occur after installation. To compensate that attenuation, adjusting the

gain value is required. You may refer to 2.6 Gain setting for details.

Please be aware that audio clippings (waveform distortion) may occur for some portable players, these

are the clippings generated by the audio source, not the amplifier itself; please increase the input gain

of amplifier board.

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