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No machine is unlimited, and from time to time the RX21's LCD may present you with an error message indicating
that something has gone wrong, or that you have made an operating error. These error messages are as follows:
CHANGE BATTERY!!
NO BATTERY!!!
RX BUFFER FULL!
PRESET PTN AREA!
PTN MEMORY FULL!
ERROR MESSAGES
Cause:
The RX21 memory backup battery voltage is between 1.5 and 2.2
V.
Solution:
Change battery as soon as possible (contact your local Yamaha
dealer). Press +1/YES to return LCD to normal display.
Cause:
The RX21 memory backup battery voltage is equal to or less than
1.5 V.
Solution:
Change battery immediately (contact your local Yamaha dealer).
With the RX21 switched to "CH INFO AVAIL", and being "played"
Cause:
by a MIDI keyboard or sequencer, you tried to input too much in-
formation (notes too rapid, and/or too many RX21 instruments played
simultaneously). This overloads the RX21 Buffer, and causes it to
go out of sync.
Solution:
Input less data (less rapid notes and/or less RX21 instruments played
simultaneously).
Cause 1:
You tried to edit one of the preset patterns (numbers 56-99).
Solution 1:
Copy the preset pattern (see the PATTERN COPY section) into a
programmable pattern number (00-55) and edit the copied pattern.
Cause 2:
You tried to copy a pattern onto a preset pattern number.
Solution 2:
Copy the pattern into a programmable pattern number (00-55)
Cause 3:
You tried to clear a preset pattern, or clear one instrument in a preset
pattern.
Solution 3:
No solution: preset patterns are permanently stored and cannot be
modified in any way. If you wanted to alter a preset pattern by clearing
one of its instruments, copy it into a programmable pattern number
and clear the instrument from the copied pattern.
Cause 4:
You tried to carry out a Beat Exchange operation on a preset pattern.
Solution 4:
No solution: preset patterns are permanently stored and cannot be
modified in any way. However, if you wanted to alter a preset pattern
by carrying out a Beat Exchange operation, copy it into a program-
mable pattern number and carry out Beat Exchange on the copied
pattern.
Cause:
You tried to write a pattern, copy a pattern, or carry out a Beat Exchange
operation, when the pattern memory was full.
Solution:
Clear patterns to make space for new patterns, or save all patterns
onto cassette, then clear all patterns.
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