Lexicon MPX 110, Руководство по обслуживанию, Страница: 27 / 75

Lexicon
5-9
File is working properly.
When selected, the Binary LED’s will read the following:
Edit Bypass Store Tap
O O O
l
MSB LSB
Pressing the TAP button will run the test continuously
The remaining buttons, encoders, ADC Pots and footswitches (2) are inactive. When the test is executed,
all Front Panel LED’s will go off.
If the test passed, the L & R Level (green) LED’s will light.
If the test failed, the L & R Clip (red) LED’s will light.
To run the test again, press the STORE button.
To run the test continuously, press the TAP button.
To stop the test from running continuously, press the STORE button.
ENCODER/SWITCH/LED TEST (6)
The Encoder/Switch/LED Test is essentially three tests in one. The combination of the three tests provides
a means for verifying the operation of the Encoders (2), Front Panel Buttons (3) and Footswitches (2) at the
same time. Refer to table 3 for Encoder Gary scale when debugging.
When selected, the display will read the following:
Edit Bypass Store Tap
O O O l
MSB LSB
Pressing the STORE button will execute the test.
When the test is executed, the Left Level (green) LED will be lit, and all Front Panel LED’s will be turned off.
IMPORTANT: The Encoder/Switch/LED Test MUST be performed in the proper sequence. The
Encoder portion of the test MUST be performed first, before any Switch or LED
testing can be performed.
Encoders:
When the test is executed the CPU reads the value of the encoder being tested, and then expects the next
value read from the encoder (when the encoder position is changed) will be at a predetermined incremental
value. Therefore, during the test each encoder must be rotated in a clockwise direction as it’s being tested,
or the test will fail.
When the Encoder Test is first executed, the Left Level (green) LED will be lit to indicate that the
VARIATION Encoder is being tested.
When the VARIATION Encoder has been rotated clockwise over its entire range, the Left Level (green)
LED will be turned off to indicate the VARIATION Encoder has passed, and the Right Level (green) LED
will be turned on.