Lexicon
5-1
Chapter 5 Trou bleshooting
Check the Lexicon web site for the latest software and information:
http://www.lexicon.com
The Lexicon Support Knowledgebase:
http://www.lexicon.com/kbase/kbase.asp
Diagnostics
The MXP 500 contains two types of Diagnostics: Power Up Diagnostics, and Extended Diagnostics. Each
of these is described in this chapter.
Power Up Diagnostics
On Normal power up, the MXP 500 will automatically execute a set of tests that comprise the Power Up
Diagnostics. All front panel LEDs will be turned on for approximately 200ms, and then the MPX 500 will
attempt to run the following sequence of tests. The tests have been designed to take less than 10 seconds.
ROM Test
SRAM Test
WCS Test
INT Test
ADF Test
EEPROM Test
Error Indication
If any of the Power Up Diagnostics tests fail, the LOAD LED will be turned on. The error message will be
displayed on the front panel as shown in the example below. This will be true for all tests if an error occurs.
To continue to the next test after a failure is reported press BYPASS.
(MSB) (LSB)
Bypass
Store
12
Edit
Edit
System
Load
Tap
Program
34
LOAD
LED indicates
when test has Failed
EDIT
LED indicates
when test has Passed
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