Alesis DEQ230, Service Manual, Page: 14 / 38

Confidential Alesis Service Manual 8-31-0103-A
Front Panel Sub Assembly Test CON’T
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.
Verify that each row lights in order without skipping any rows. Verify that
all the LEDs in a common row light at the same time, and that two rows
are NEVER on at the same time. Verify that when LEDs in a row are lit,
that all the LEDs in that row turn on.
Problems with no response to Band Button 2 indicate Band Button 2 is
faulty 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.
6) Press Band Button 3 . This button is located on the far left hand side of the unit,
underneath the column marked “40”. This button runs the software revision
check.
Verify that the seven-segment display changes.
Verify that the seven-segment display shows the current software revision
number.
Problems with incorrect software revision number indicate that the
incorrect software is being loaded into the DUT, and the test has FAILED.
Problems
with no response to Band Button 3 indicate Band Button 3 is
faulty and the test has FAILED.
Failure of this inspection indicate a serious problem with current
firmware for production. The DUT cannot continue further testing, and
the Alesis Engineers listed at the top of this document should be asked for
current software or current version of this document before continuing
production.