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LexiconPCM 90 MIDI Implementation Details
0x23 Custom Control Value Message
This dump is only received by the PCM 90. It allows the custom controllers to be operated remotely. When
the Adjust knob value is transmitted, the temporary Adjust knob screen does not appear on the PCM 90
display.
Byte # Byte Value Description Notes
1 F0 SysEx ID
2 06 Lexicon ID
3 08 PCM 90 ID
4 0iii iiii Device ID
5 0x23 Custom Value
6 0000 0iii Control ID 0-3=Custom Controls; 4 =Adjust Knob
7 0iii iiii Value for the controller Values above the max or below the min will be clipped
8 0xF7 End of SysEx
0x24 Soft Row Display Response
This dump is only transmitted by the PCM 90 as the result of an inquiry. It is a support function for the Soft
Row Assignment Dump. It returns substitute row and column values (used as bytes 7 and 8 in the Soft
Row Assigment message) along with the text name of the parameter block to be placed there. The
displays apply only to the currently loaded algorithm.
In many cases, related parameters, such as Master parameters for displays, are stacked up onto a single
matrix slot. A descriptive slot name for the entire parameter group is used in soft row assignments. This
message allows a program to determine the name.
Byte # Byte Value Description Notes
1 F0 SysEx ID
2 06 Lexicon ID
3 08 PCM 90 ID
4 0iii iiii Device ID
5 0x24 Soft Row Display Message
6 0iii iiii Algorithm iD
7 0iii iiii Number of value soft row
assignments for the current
algorithm Only this many of the following descriptors should be used.
The message reserves room for up to 64 descriptors
8-29 0iii iiii 22-Byte Descriptor for the
soft row assigment. 1 byte=Substitute row. Plug this into byte 7 of the Soft Row
assignment message.
1 byte=Substitute column. Plug this into byte 8.
20 bytes=Display string. A text descriptor of the parameter
block to be assigned to the soft row. This is the same string
that appears when editing the soft row from the front panel. In
some cases, multiple parameters may be grouped into a
single location on the matrix
30-1415 0iii iiii Remaining descriptors
1416 0xF7 End of SysEx
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