3co V 3.0 Owner’s Manual
Troubleshooting
Low Voltage
Overheating
common MIDI
Problems
Lexicon
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This chapter is intended primarily to help you recognize some common error
states which can be corrected from the 300 front panel, or by simple means such
as cable replacement. Any error states which are not covered here should be
referred to your local dealer for service by a qualified technician.
In a low-voltage, or “brown-out” condiiion, the 300 will freeze in fts current state.
None of the controls will have any effect. When power returns to a normal level
the unit will reset ltseb as though it had just been powered on. If the unit does
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not reset itself, turn the power OFF, then ON to resume normal operation.
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Temperature extremes may cause the 300 to exhibit unpredictable behavior. if
the unit as been subjected to temperatures below 3Z°F (0°C) or above 95OF
(35”C), lt should be turned off and allowed to return to normal temperature
before use. The unit may be damaged by exposure to temperatures below -22OF
(-30°C) or above 167OF (75’C), or by exposure to humidity in excess of 95%. If
a unft exposed to such condftions fails to operate after it returns to a normal
operating temperature, contact your local service representative.
The 300 doesn’t respond to MIDI Program Changes.
Check the PARAM MIDI channel on the MIDI Control page in Control mode and
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check the Table Mode setting on the same page. The Table Mode should be set
to FIX or TABLE. Atso check MIDI In/Out connections between the units.
The 300 doesn’t respond to Controller messages when using Dynamic
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MIDP.
Check the PARAM MIDI Channel number on the MIDI Control page in Control
mode and check the patches in MOD Edit mode. Also check MIDI In/Out 1
connections between the units.
The 300 doesn’t respond to SysEx commands.
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Check the SYSTEM MfDf Channel on the MIDI Control page in Control mode.’
The 300 does not send MIDI parameter changes.
Check the Automation mode on the MIDI Control page in Control mode. This
should be set to SYS EX or NON-REGISTERED PARAMS.
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