Owner`s manual
SOFTWARE VERSION 
The MP-1 displays the current installed software version during power-up. It is a three 
numeral read-out which is displayed just prior to displaying the last program number 
before the unit was turned off. 
SELF DIAGNOSTICS 
The MP-1's internal self-diagnostic functions automatically check the unit for memory errors 
during power up. Additional checks are made when data is received in the form of MIDI 
System Exclusive messages. When an error is detected during power up, one or more 
error messages will be displayed. The following chart shows the error code that will be 
displayed in the event of a problem, the cause of the problem, and the appropriate action for 
you to take. Diagnostic status is also available via MIDI System Exclusive messages. For 
information on MIDI diagnostics, please refer to the MP-1 MIDI SOFTWARE 
SPECIFICATION AND PROGRAMMER'S GUIDE, which may be ordered from your 
authorized dealer, or directly from ADA. Order ADA part number 701083. 
ERROR CODES: 
DISPLAY
  CAUSE  ACTION 
C 1 to      Preset checksum error.    Re-enter the data for the preset. 
C 128      The preset indicated was   
  found to be in error. The   
 preset is initialized to  
default values. 
Err 1      MIDI map checksum error.    Re-enter 
All MIDI program numbers    MIDI map 
  are set 1:1 with internal    assignments. 
memory numbers. 
Err 2      Working register checksum    Call up 
 error. All values  another 
  of stored parameters in the    program 
      working register are set to    number or 
default values. All are set to    re-enter 
0 except effects loop is set to  parameter 
  'out' and the clean tube    values via 
 voice is selected.  Edit session. 
Err 3      MIDI control parameters    Re-enter MIDI 
 checksum error. All  parameters via 
  parameters set to default    front panel. 
  values: MIDI = OFF, MIDI 
  internal # = 1, most recently 
received MIDI program = 1, 
current program = 1, Memory 
protect = ON, and display flashes. 
{None]    Indicates the program itself    Check fuse. If 
has an error. Program will    good, unit 
  not display anything and.    requires 
 unit will not operate.  service. 
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