29
PSR-740/PSR-640
CAUTION
• All registration and User
Style/Pad memory data,
plus the other settings
listed above, will be erased
and/or changed when the
data initialization
procedure is carried out.
• Carrying out the data
initialization procedure will
usually restore normal
operation if the PSR-740/
640 freezes or begins to
act erratically for any
reason.
All data can be initialized and restored to the factory preset condition by turning on the power
while holding the highest (rightmost) white key on the keyboard. “Now initializing the internal
memory...” will appear briefly on the display.
DATA INITIALIZATION
Summary of Contents for PortaTone PSR-640
Page 4: ...4 PSR 740 PSR 640 ...
Page 22: ...22 PSR 740 PSR 640 DM Circuit Board PSR 640 Component side Pattern side 2NA V350510 1 2 1 ...
Page 27: ...27 PSR 740 PSR 640 ...
Page 28: ...28 PSR 740 PSR 640 ...
Page 32: ...32 PSR 740 PSR 640 ...
Page 33: ...33 PSR 740 PSR 640 ...