Alesis Andromeda A6 Service Manual page 12

2.320 Test SSRAM function by pressing SB#4. Verify that the messages, first, "TESTING
SLOW SRAM", then, "SLOW SRAM PASSED!" appears on the LCD display.
2.321 Test the Ribbon Controller by starting from the farthest end of either side of the ribbon
and sliding finger across it, while pressing down, from left to right and back, verifying
that the left and right ribbon values increase and decrease while sliding and that the
"PASSED" message appears twice on the LCD display. Note: If only one "PASSED"
message appears on the LCD display, stop test and reject unit.
2.322 Test each and every Potentiometer, one at a time, from one end of the Front Panel to the
other, verifying that both panel and LCD pot names match up and that the "PASSED"
message appears (for every pot) on the LCD display. Note: The MASTER VOLUME
pot will not show up on the LCD display when actuated.
3.323 Test the Pitch/Mod Wheel Assembly by moving the PITCH and MOD wheels while
verifying that both the panel and LCD wheel names match up. Verify that the
"PASSED" message appears on the LCD display. Also, verify that all buttons on the
Pitch/Mod Wheel Assembly actuate their corresponding LEDs and that their panel and
LCD names match up on the LCD display.
2.324 Test the Front Panel switches by pressing every button on the Front Panel, verifying that
both panel and button names on LCD match up and that their corresponding LEDs light
up when pressed (some buttons do not have corresponding LEDs). NOTE: Do not
press/test SB#1-4 -- they were tested in previous steps.
2.325 To test the Aftertouch, press down firmly and hold any of the keys in the keybed until the
"PASSED" message appears on the LCD display.
2.326 Test the Foot Switches/Pedals ports:
a) Connect the Fatar Foot Switch (93) to the CC PEDAL port (¼" jack) and actuating it
while verifying that the "CC PEDAL PASSED" message appears on the LCD
display.
b) Connect the Fatar Foot Switch (93) to the SUSTAIN port (¼" jack) and test by
actuating it while verifying that the "SUSTAIN PEDAL PASSED" message appears
on the LCD display.
c) Connect the Fatar Foot Switch (93) to the SWITCH port (¼" jack) and test by
actuating it while verifying that the "SWITCH PEDAL PASSED" message appears
on the LCD display.
2.327 Press SB#8 to identify the remaining tests to be done.
2.328 Perform remaining tests as required by A6 diagnostic software.
2.329 Follow and repeat steps 1.17 to 1.19 until all remaining tests have been performed.
2.330 If unit passes all required tests mentioned in this document, then unit has passed the Front
Panel Test!
Confidential Alesis Service Manual 8-31-0089-C