Self Test - Lexicon 960L Service Manual

960L Multi-Channel Digital Effects System Service Manual
NOTE: The top line of the 'Interactive Diagnostics' menu displays the voltage test readings raw value and
its conversion to millivolts, line 2 displays the date and time of the Boot ROM build, and line 3 displays the
Boot ROM and Application version (the actual text may vary).
The Interactive Diagnostic tests are executed from the 'Interactive Diagnostics' menu by pressing two keys
simultaneously. For example: pressing the 'PROGRAM' + 'REGISTER' keys would execute the 'Self Test'.
The key combinations used to execute the Interactive Diagnostic tests are listed in the table below:
TEST NAME:

Self Test

LCD Test
KEY Test
LED Test
Joystick Test
Fader/Motor Test
LEXICON Test
Memory Test
Repetitive Test
Diagnostics Suite
To exit
IMPORTANT: Always follow the instructions which appear on the LARC2 LCD display or Debug Terminal
when performing any of the Interactive Diagnostic tests.
Self Test:
NOTE: These are the same tests that are executed during the Power On Diagnostics.
Prior to the execution of the Power On Self Tests, the Realtime Clock is tested. This test verifies the
operation of the 32.768kHz crystal on the SA-1100.
TEST 1: Motor Waveform Registers Test
This test writes to control registers in SA-1100, then verifies the value written can be read.
TEST 2: Motor Control Registers Test
This test writes to control registers in SA-1100, then verifies the value written can be read.
TEST 3: A/D Control Registers Test
This test writes to control registers in SA-1100, then verifies the value written can be read.
TEST 4: A/D Self Test
This test reads the MIN, MID and MAX values based on the reference voltage of the A/D converter.
TEST 5: (Not Used)
TEST 6: External PS/2 Keyboard Test
This test initializes the External Keyboard, and tests for the presence of a keyboard connected to the AUX
port of the LARC2 by sending 8 characters out the port, and monitors any data that is received. The data
received is then compared to what was sent.
6-34
KEY COMBINATION:
PROGRAM + REGISTER
PROGRAM + STORE
PROGRAM + EDIT
PROGRAM + CONTROL
PROGRAM + JOYSTICK
PROGRAM + FINE ADJ
PROGRAM + LEXICON
PROGRAM + MUTE ALL
PROGRAM + MACHINE
PROGRAM + BANK
MUTE ALL + MUTE MACH