Setup And Testing - Ramsey Electronics UAM2 Quick Manual

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:
J2
ON
ON
OFF
OFF
'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....
The long black and red twisted pair wire is for you to connect your speaker to
the UAM2. The green screw terminal block is there in case you wish to con-
nect your power source there instead of at the power jack, J4. The pins are
labeled "VCC" and "GND" for your positive and negative supply. The third ter-
minal on the block is labeled SD. This stands for "shutdown" and this pin can
be connected to ground to turn the unit off instead of pulling the power plug.
You can connect a switch to ground at that point to have an ON/OFF for the
UAM2.
J1
ON
OFF
ON
OFF
UAM2• 11
Gain(dB)
12
18
23.6
32