Singer 560 Operation Manual page 4

PRECAUTION
This machine must be kept away from the following places since electronic com-
ponents are vulnerable to those conditions.
1. Direct and strong sun light.
2. Near to heater, or a place of excessively high temperature.
3. Excessively humid or dusty.
When the machine is not in use, disconnect the plug from the A.C. mains, otherwise
the Transformer continues to consume electric power even if the ON-OFF switch
is turned off.