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SETUP AND TESTING
Well, setup and testing for this kit is really easy. Just plug in a line level or
even headphone level audio source into J3. Use J1 and J2 to set the gain.
Use the chart below:
'ON' means the jumper block is on the pins, and 'OFF' means it isn't. Start out
at minimum gain to test. Plug your 8-12V power source in, connect a speaker
to J5 and J6, and feel the awesome power of your UAM2!!!!!! If everything
works ok, crank the gain up to max by pulling out both jumper blocks. Hear
that sound! OOOO! Feel that chip not get hot! AHHH!!! Unless it doesn't work,
then....
TROUBLESHOOTING GUIDE
Well, this being a surface mount kit and all, if something doesn't work it's
probably because one of the teeny parts didn't get soldered in or got shorted.
Check all your connections with a magnifier if you have one, and make sure
they all look good. Of course check the polarity on the electrolytic cap and the
diodes. There's not much else that could be messed up with this kit. The IC is
pretty tough. It has output short-to-ground, short-to-supply, short-together, and
thermal overload protection. If you short it, or somehow overheat it, disconnect
and reconnect power to clear the short.
UAM2• 12
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