Oberheim Matrix-6 Service Manual

MATRIX-6 SERVICE MANUAL
PRELIMINARY EDITION-February, 1986
00 MATRIX-6
CAHBRATIONS
1. TUNE - While in MASTER EDIT, pressing the B button puts the MATRIX-6 into
AutoTune. 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 MATRIX-6's three High Frequency Oscillators (HFOs).
2. CALIBRATE - While in MASTER EDIT, pressing the A button ; uts 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 I 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 Llank 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 MATRIX-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 th>: tuning
process and the voice or voices that are bad. Failures in any of the four ections
of the tuning process are displayed with the following messages:
"BADOSC ""
"BAD WAVE ""
"BAD RES ""
"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
MATRIX-6 Service Manual
ECC / Oberheim - Los Angeles, CA 90064 - Part tt 950060
Page 1

Oberheim Matrix-6 Specifications

General

Polyphony	6 voices
Oscillators	2 DCOs per voice
Keyboard	61 keys
Memory	100 patches
MIDI	Yes
Type	Analog
Year Released	1985
Envelopes	3