MATRIX-6 SERVICE MANUAL
PRELIMINARY EDITION – February, 1986
CALIBRATION
1. TUNE - While in MASTER EDIT, pressing the B button puts the MATRIX-6 into
Auto Tune. The cycle takes approximately two to three seconds to complete,
during which time the display reads
"TUNING...",
While In TUNE mode, the
processor is tuning the MATR-X-6's three High Frequency Oscillators (HFOs).
2. CALIBRATE - While in MASTER EDIT, pressing the A button puts the
MATRIX-6 into Parameter Select mode. While in this mode, call up parameter
52 and the display should read
"52 CALIBRATE
". Now press the D button.
This will put the MATRIX-6 into VALUE mode and the display will read
"READY?
".
Press the YES button on the Keypad - the display will blank out
during the Calibration routine. When the process is finished, the display will
return to read "52
CALIBRATE".
The CALIBRATE function calibrates the three HFOs as well as the VCF
Frequency, Pulse Widths, Resonance amount and VCA2 level on each voice.
if the MATRIX-6 encounters any problems while tuning the voices, it will
display which voice and the section of that voice that is having the problem. To
display tuning failures enter CALIBRATE mode and, with the display blank,
press and hold the C button until the display returns to
"52 CALIBRATE",
If the MATRlX-6 tunes all six voices without encountering any problems, the
display will remain blank during the tuning process. When problems are
encountered, the display will indicate which of the four sections of the tuning
process and the voice or voices that are bad. Failures in any of the four sections
of the tuning process are displayed with the following messages:
B A D O S C * *
BADWAVE * *
BADRES **
BAD VCF **
for problems with the HFOs.
for oscillator waveform problems.
for resonance problems.
for filter problems.
The two stars in each message represent a two digit number that indicates which
voice or voices have failed that section of the Calibration, The number is a
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