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Copyright
2008 FiveFish Studios
www.fivefishstudios.com
SC-1mk500 Microphone Preamp Kit
PRE-FLIGHT CHECK ADJUSTMENTS:
STEP 1. Review your work. Finished reviewing it? Good…. Now REVIEW IT AGAIN! It’s easier and less stressful to review your
work now before any problems.
To be specific, make sure components are inserted in the right locations.
Make sure all the diodes are pointing in the right direction.
Make sure all the electrolytic capacitors are inserted in the right direction.
VERY IMPORTANT:
Make sure there are no SHORTS in your soldering job, especially in the power lines V+, GND, V-.
STEP 2A. The ideal way to test your mk500 preamp kit is to verify its proper operation before inserting it into your 500 series
rack.
Wire an EDAC connector (not supplied with kit) to V +, GND and V– voltages, and also wire the input and output XLR jacks to the
EDAC connector terminals.
Plug the EDAC connector the preamp kit, apply voltage to the +/- power pins (+/-16Volts), plus a signal source and a monitor
speaker for the XLR output.
STEP 2B: If you don’t have any EDAC connector, your only other choice is to plugin the preamp board to your 500 series rack.
It may be a good idea to remove any other module from your 500 series rack during testing of your new preamp board.
PLEASE REVIEW YOUR SOLDERING JOB, MAKE SURE THERE ARE NO SHORTS, especially any shorts in the power supply path.
Make sure power is OFF.
AUDIO TESTING
Connect a dynamic microphone to the input XLRs, connect a monitor speaker to the output XLR, turn power ON, set the gain
switch, adjust volume and you should hear sound come out of your preamp.
If using a condenser mic, turn phantom power switch to ON position. Check to see if the LED lights up. Wait a few seconds, and
your condenser microphone should start working.
Check that your LED VU meters are working and blinking.
