Ram; Flash; Vga; Ports - Jands Event 4 Technical Manual

Boot ROM inbuilt Menu, self tests, setups, etc

RAM

The system RAM is checked for correct operation. This test requires approximately 2
minutes to execute.

FLASH

The system FLASH is checked for correct operation. This test requires approximately
50 seconds to execute. Note that due to the limited number of write cycles available in
FLASH devices, it is not recommended that this test be run continuously.

VGA

The VGA controller is initialised and a memory test is performed on its RAM. This
test takes approximately 17 seconds to execute and during execution a VGA monitor
will show the memory test patterns.

Ports

Use this option to test the ports of the CPU card. When selected the following options
are displayed:
1. VGA

2. DMX1

3. DMX2

4. MIDI
VGA
Test bars are displayed on the VGA and LCD screens for the purpose of checking
colour (VGA) and grey scaling (LCD). Press enter to return to the normal menu when
the screen results have been viewed.
DMX 1
The DMX1 output is connected to the MIDI input via the adaptor cable shown in
Appendix D, or the combiner circuit shown in Appendix E. When the test is run the
DMX1 output is exercised and the results read back into the MIDI input. The test takes
about 3 seconds to complete.
DMX 2
The DMX2 output is connected to the MIDI input via the adaptor cable shown in
Appendix D, or the combiner circuit shown in Appendix E. When the test is run the
DMX2 output is exercised and the results read back into the MIDI input. The test takes
about 3 seconds to complete.
Revision 1 - 07 July
1999 Event 4
5 - 4
TECHNICAL MANUAL