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Class D Switching Power Amplifiers and Power D/A conversion

How to connect power on switch and LED on TA2024?
How to connect power on switch and LED on TA2024?
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Old 21st June 2009, 12:37 AM   #1
gychang is offline gychang  United States
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Default How to connect power on switch and LED on TA2024?

I am a novice but with basic soldering skill and willing to learn.

I am trying to hook up non-illuminating power on switch ((A), has 3 prongs one with "copper" which I assume is ground) and a separate power on LED bulb.

1) is the picture correct to connect A to the board, B is obviously DC input.

2) do I need a extra resistor to connect the LED? (some web site suggested LED must be used with a resistor??)
3) does the polarity matter, one has a longer "leg".
4) can anyone direct me where to solder the LED on this board so when I switch A on the warning light comes on?

thanks,

gychang
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Old 21st June 2009, 09:45 AM   #2
audio1st is offline audio1st  United Kingdom
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If it is a non illuminating switch.
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Old 21st June 2009, 01:35 PM   #3
gychang is offline gychang  United States
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Quote:
Originally posted by audio1st
If it is a non illuminating switch.
thank you, thank you.

You have been a tremendous teacher with your clear pictorials, this is another. Even drew in a longer leg on LED...

What is the third "copper" lead for?

gychang
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