Sony SRMASTER SR-R4 Operation Manual page 56

Other
Problem
Power goes off.
Cannot record.
Power to other
equipment does not
come on.
56 Troubleshooting
Cause
The current limiter of the power
source was activated.
SRMemory card is write-protected. Return the write protect switch to the original
Power switch of other equipment is
not on.
Countermeasures
Adjust the limiter, taking into take account the
inrush current when powering on and when
switching modes.
position.
Turn power switch of other equipment on.