Alesis Andromeda A6 Service Manual page 14

2.50 QC Procedures for Repair
These are the procedures that should be done on an A6 after it has been repaired (from the field).
Obviously, whatever was fixed should be tested thoroughly.
1. IMPLEMENT OUTSTANDING ECNs.
2. REASSEMBLE. Hot glue any connectors you may have disconnected, then re-assemble
the unit.
3. LOAD CODE. Load latest boot and OS code into the unit if necessary (as of 2/13/01 the
latest boot code is V1.20.36; the latest OS is V1.40.09). This can be done by using a
Data Disk, computer, or another A6. If required, load the boot code first to take
advantage of the faster burning capability of the latest boot code. If the unit already has
the latest code, power up while holding soft button 4 to clear global variables.
4. AUTO TUNE. After the new code is loaded (or globals are cleared), the unit should
automatically do a VCA cal and auto tune. If all voices pass tuning, you should see a
"TUNE OK" box in the upper left corner of the Auto Tune page.
5. HEADPHONE LISTENING TEST. Select a simple piano or guitar type of sound (or use
the default sound) and play a few notes and chords. Verify that the unit "sounds" in tune
through headphones.
6. KEYBOARD TEST. Play a chromatic scale starting from the lowest note to the highest
to verify that all of the keys work. Sometimes the keyboard ribbon cables can get
pinched when re-attaching the top panel to the bottom panel.
7. RIBBON TEST. Find a patch that uses the Ribbon Controller (for example, Preset 2 050
Upstairs at E's) and verify that the Ribbon Controller works.
8. FRONT PANEL TESTS. Turn off the unit and power back on while holding soft button
2 to go into front panel debug mode. Perform all tests (knobs, leds, buttons, midi, etc.)
and verify that they all pass by pressing the "DONE" button.
9. MAIN OUTPUT TEST. Verify that the Main Outputs are working by connecting the A6
Main Outputs to an amp and speakers and playing the keyboard.
10. AUX OUTPUT TEST. Verify that the Aux Outputs are working by connecting the A6
Aux Outputs to an amp and speakers, then select AUX using the Output button (at the far
right of the unit).
11. POWER CYCLE TEST. Cycle power a few times and verify that the unit boots properly
each time.
Confidential Alesis Service Manual 8-31-0089-C