1A) Diagnostic Menus; Diag; Eeprom; Col - Alesis DEQ830 Service Manual

1a) Diagnostic Menus

When entering diagnostic mode, pressing PROGRAM will advance to the next
test. The test order is as follows:
DIAG -> EEPROM -> COL -> ROW -> ALL -> MIDI -> A. ->
DIG A. ->RESET -> DONE

DIAG

Message
Informs user "Prepare for tests.".

EEPROM

Eeprom Test
When entering EEPROM test, EEPROM test is run automatically. Unit displays
EEPROM FAIL or EEPROM PASS.

COL

LED Test
Turning the VALUE encoder clockwise rotates through LED columns.

ROW

LED Test
Turning the VALUE encoder clockwise rotates through LED rows.

ALL

LED Test
When entering ALL test, unit turns all LEDs on.

MIDI

MIDI Test
When entering MIDI test, MIDI test is run automatically.
MIDI FAIL or MIDI PASS.
A.
Audio Fidelity Test
When entering AUDIO test, unit configures dsp for bypass to run audio
tests. This uses an abbreviated title, "A," to reduce noise caused by the
led matrix scanning.

DIG A.

Digital Audio Test
When entering DIG AUDIO test, digital audio test is run automatically.
Unit displays DIG PASS or DIG FAIL.
to PASS.

RESET

EEPROM Reset
Allows user to reset EEPROM.
0 to 99 in the 7 segment display, and is finished when the display reaches
"99".

DONE

Message
Informs user "Done with tests.".
Requires MIDI loopback cable to PASS.
Requires ADAT Optical loopback cable
Push encoder to RESET eeprom.
Unit displays
Unit displays