Clavia nord STAGE, Руководство по обслуживанию

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Clavia DMI Service manual Nord Stage rev. 1.1 Page 4
Test program
Running the test program
The Nord Stage test program is stored both in Flash and in the BootPROM position
U6 .
Test program version is shown on the Stage display when the test program is initiated.
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 Stage, 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 Stage, press and hold buttons
[ Shift + Store + Ctrlped ] at power up. When test mode is entered, a DRAM test is
performed. After the DRAM test has finished successfully, the test program will start.
The DRAM test progress is indicated by the LED´s on the piano section encoder on the
front panel. The LED´s are divided into three groups, where each group of LED´s
represents a part of the DRAM test procedure. During the DRAM test, the LED groups
will light up, one by one. If errors are detected, one of the three groups will flash:
- If the first LED group is flashing, errors have been detected on
U9 .
- If the second LED group is flashing, errors have been detected on U8 .
- If the third LED group is flashing an address bus error has been detected.
Navigating through the test program
- Press the designated program buttons [ 1 ] or [ 2 ] to enter a test group (MNB, PNL).
(ADJ and SYS are only used in production.)
- Press program button
[ 4 ] When a test has finished, to exit test.
- Press [ Page+ ] or [ Page- ] to toggle between available tests.
- Press [ Shift + Page+ ] or [ Shift + Page- ] to skip a section in a test.
- Press [ Page+ ] or [ Page - ] within a test to jump between sections.
- Press [ KBzones 2 ] to reset a test.