Lexicon MPX G2, Service Manual

Page: 59 / 165

Lexicon
5-11
Diag: Tests
< Display Block
Auto Test Execution
Note: This test is for Lexicon Manufacturing use only. The test requires custom test fixtures, which
are not available for sale.
The following tests are included in the Auto Execution Test:
Footpedal Test (refer to this test later on in this chapter)
MIDI Test (refer to this test later on in this chapter)
At the Functions Tests menu turn the Encoder until the display reads the following:
Diags: Tests
< Auto Execution
Next press the STORE button and release. If the tests pass, the display reads:
Auto Execution
Passed
If a failure occurs, the Auto Execution Test will halt on the test that failed, display the name of the test on
the top half of the display and display the message "Failed" on the bottom half of the display. See the
following example:
MIDI Test
Failed
Burn In Loop
The Burn In Loop will continuously run the following tests:
ROM Checksum Test
Hi SRAM Test (ADSP2186 RAM)
Low SRAM (size) test (Non erasable, not touching the
volatile area)
Lexichip WCS Test
ADSP2186 - Lexichip Serial Audio Interface Test
Lexichip DRAM Test
At the Functions Tests menu turn the Encoder until the display reads the following:
Diags: Tests
< Burn-in Loop
Next press the STORE button and release.
After the STORE button is pressed, the top half of the display will indicate what test is being executed and
the bottom half of the display will indicate the test is running. See example below:
DRAM Test
Running