Kenwood BASIC M1 Current Source Modification
www.drmaudtioht.com
10/9/2008 6:56 PM
page 10 of 10
Testing
Congratulations! At this point, you have installed current source modification in your Kenwood
Basic M1 amplifier! Before using the amplifier, measure voltages as defined in the service
manual schematic to verify that the amplifier is operating properly.
IMPORTANT
While the Kenwood Basic M1 has speaker protection, it is imperative that speakers are not
connected to the amplifier until it has been verified that the amplifier is operating correctly.
Measure the voltage at the speaker terminals and verify that it is approximately 0 volts. There
may be a negative or positive voltage present that could be as much as 100 millivolts or more,
but it should not exceed 200 millivolts.
Once it is determined that he amplifier is operating correctly, connect the speakers and power
the amplifier up. Allow time for the amplifier to heat up before proceeding.
After the amplifier has reached operation temperature, follow the instructions in the service
manual to adjust the idle current, using the 2 mm allen wrench supplied in the kit.
Support & Assistance
Please send requests for assistance to
I will answer emails within 24 hours or sooner if possible.
I hope that you enjoy your Kenwood Basic amplifier with the current source modification
installed as much as I have!
Thanks!
Dan Mattis
