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Functionality Test
These tests combine checks for Audio, LED and Switches.
1)
Press the LINK/EXIT and BYPASS buttons on the DUT and hold these buttons
during Step 2. When started in this manner, the unit will enter Factory Test Mode.
2)
Plug the P3 type Alesis Power Supply into a power source and the barrel jack
into the DUT Power In jack.
Verify that the front panel LEDs show normal power up message, "DEQ"
on the left side and "230" on the right side. After this message "TEST"
should display briefly on the left side.
Problems with this inspection indicates that the unit has not entered
Factory Test Mode. Unplug the unit and repeat steps 1 and 2.
3)
When in Factory Test Mode, the unit will bypass audio so that the unit can be
checked for audio integrity. Press Play on the CD player.
Verify that the audio passes through the unit and can be heard on the
Alesis M1 Active speakers.
Problems with this test could be the result of incorrect audio cabling,
speaker setup, or CD Player operation. If these are not the case, then the
unit has FAILED.
Failure of this test indicates that this DUT cannot continue testing.
4)
Press Band Button 1. This button is located on the far left hand side of the unit,
underneath the column marked "25". This button runs the LED COLUMN TEST.
Verify that columns begin to light in order and that the LED pattern is in
working order as in the Front Panel Sub Assembly Test.
Verify that the lens is free of scratches, and that the LEDs have a
consistent and clear appearance.
Problems with no response to Band Button 1 indicate Band Button 1 has
mechanical fit problem and the test has FAILED. Problems with LED
inspection indicate test has FAILED.
Failure of this inspection indicate that the DUT cannot continue further
testing.
5)
Press Band Button 2. This button is located on the far left hand side of the unit,
underneath the column marked "31". This button runs the LED ROW TEST.
Verify that rows begin to light in order and that the LED pattern is in
working order as in the Front Panel Sub Assembly Test.
Confidential
Alesis Service Manual
8-31-0103-A
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