Clavia DMI
Service manual Nord Lead 3 rev. 1.1
Page 4
Test program
Running the test program
The test program is stored in the BootPROM position
U36
. Test program version is
shown on the Lead / Rack 3 display when the test program is initiated.
If BootPROM version is older than 0.20, there is no test program available.
To find out which version that is installed, the Nord needs to be opened.
In order to trace a hardware error easier, each Nord synthesizer has a test program.
This program is primarily used in production in order to test all functions.
The functions provided by the test program allow a quick and easy search for possible
errors on the hardware. On the Nord Lead/Rack 3, the display guides the user through
the test program.
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WARNING:
Improper use of the test program or powering off the synth during a test
can result in malfunction of the synth. The test program may only be used by qualified
service personnel and is not intended for end users.
In order to execute the different tests on a Nord Lead/Rack 3, press and hold buttons
[ Synth + Store + Performance Mode ]
at power up.
When test mode is entered a DRAM test is performed. The test progress is indicated by
the two middle segments of the pitch LED display.
After the DRAM test has finished successfully, the test program will start.
If any RAM error is found, 'Er' is shown on the LED display
Navigating through the test program
- Press the designated slot button
[ A ]
to
[ D ]
to enter a test group.
- Press slot button
[ D ]
When a test has finished, to exit the test.
- Press
[ Navigator Up ]
or
[ Navigator Down ]
to toggle between tests in a test group.
- Press
[ Navigator Left ]
or
[ Navigator Right ]
to toggle within a test.
- Press
[ Active Device ]
to start or reset a test.
A text guiding through the different tests should appear on the LCDs.
Summary of Contents for Nord Lead 3
Page 1: ...SERVICE MANUAL...
