Sony MHC-EC68USB Operating Instructions Manual page 30

Tuner
Severe hum or noise, or stations
cannot be received. ("TUNED" or "ST"
flashes on the display.)
 Connect the antenna properly.
 Find a location and an orientation that
provide good reception, and then set
up the antenna again.
 Keep the antennas away from the
speaker cords, the power cord and the
USB cable to avoid picking up noise.
 Consult your nearest Sony dealer if the
supplied AM antenna has come off the
plastic stand.
 Turn off nearby electrical equipment.
To change the AM tuning interval
The AM tuning interval is factory-preset
to 9 kHz (or 10 kHz) (for some areas: this
function is not available on the European
models).
Use buttons on the unit to change the
AM tuning interval.
1
Tune in any AM station, and then
turn off the system.
2
After "STANDBY" stops flashing, press
DISPLAY  to display the clock and
then press /
down TUNING +
All the AM preset stations are erased.
To reset the interval to the factory
preset, repeat the procedure.
0
GB

while holding

on the unit.
To improve tuner reception
Turn off the CD/USB player power by
using the CD/USB power management
function. By default, the CD/USB power
is turned on.
Use buttons on the unit to turn off the
CD/USB player power.
1

Press CD to select the CD
function.
2

Press /
to turn off the system.
3
After "STANDBY" stops flashing, press
DISPLAY  to display the clock and
then press / 
down  (stop) 
"CD/USB POWER OFF" appears.
When the CD/USB player power
is turned off, the disc access time
increases. In addition, when the
TUNER function is selected, power is
not supplied to the USB device, so it is
not recognized even if connected.
To turn on the CD/USB player power,
repeat the procedure until "CD/USB
POWER ON" appears.
To reset the system to factory settings
If the system still does not operate
properly, reset the system to factory
settings. You cannot reset the system to
factory settings in Power Saving Mode.
Use buttons on the unit to reset the
system to its factory default settings.
1
Disconnect and reconnect the power
cord, and then turn on the system.
2
Press  
, FUNCTION

at the same time.
All user-configured settings, such as
preset radio stations, timer, and the
clock, are deleted.
while holding
on the unit.
 , and /