Sony CMT-ED1A Operating Instructions Manual page 32

Tuner
Severe hum or noise ("TUNED" or "ST"
flashes).
•Adjust the antenna.
•The signal strength is too weak. Connect
an external antenna.
A stereo FM program cannot be received in
stereo.
•Press STEREO/MONO on the remote so
that "ST" appears in the display.
If other problems not described
above occur, reset the system as
follows:
1 Unplug the power cord.
2 Plug the power cord back in while pressing
1/u.
Set the clock, timer setting and preset radio
stations again.
32