APPENDIX C
M5TROUBL
Rev 1.5 Page 2
SELF TEST PROCEDURE IN BIOS 1.07
or higher
M5000
The BIOS 1.07 (or higher) has built-in diagnostic test features. Hopefully you will never need
them but they are implemented in order that the user can check the machine before it is sent
for repair. Each time the M5000 is powered on, a quick test is done. These tests consist of the
following steps:
•
All 4 LEDs on the CPU board are turned on.
•
Check BIOS EPROM checksum, if the checksum is bad LD1 on the CPU-board will turn
on, and if the front panel is working then the preset LED's will show 'E01'. The M5000 will
then halt.
•
Part of the dynamic RAM is tested, if the RAM is bad LD2 on the CPU-board will turn on,
and if the front panel is working then the preset LED's will show 'E02'. The M5000 will
then halt.
•
Contact to the LCD display is tested, if no contact is established LD1 and LD2 on the CPU-
board will turn on, and if the front panel is working then the preset LEDs will show 'E03'.
The M5000 will then halt.
•
LD4 on the CPU-board will stay on showing power is on.
If any problems occurs during operation of the M5000, e.g. disk problems or MIDI communi-
cation the user can select 2 different test sessions to be run.
SESSION 1: Total CPU test.
This session will run the following tests:
1. DYN RAM
2. JEIDA MEMORY CARD SLOT
3. EEPROM TEST
4. EXTERNAL INTERRUPTS
5. MIDI PORTS
6. DISK DRIVE TEST
7. MODULE CARD DETECTION (cannot detect DSP cards with a “+”)
A MIDI cable must be connected from MIDI output to MIDI input in order to check the MIDI
ports.
In order to test the disk drive, a formatted 720 Kb or 1.44 Mb disk must be inserted.
The data
on the disk will be preserved
.
Summary of Contents for M5000
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