Yamaha RCX142 User Manual page 381

Fig. 8-3-1 Problems caused by poor connections
External device *
AC100 to 200V
FG
Ground wire was not at ground
potential or not connected.
3. Communication specifications
Improper ground wire connection
might cause electrical shock if
connector metal parts are
touched.
Connector metal parts
Potential
Malfunction or breakdown might
Failure to use
occur when making connection
ground wire might
or after connection.
raise the voltage
potential.
* External device: Notebook PC using an AC adapter, etc.
RCX142 series
8
7
8-