Grundig Sonoclock 720 User Manual Download Page 5

Function selection switch RADIO/ALARM:

0

= radio on

y

= radio off (no alarm function)

ɷ

= radio comes on at alarm time
= alarm sounds at preset time

p

– connection for stereo headphones

TIME

– to set the clock time.
– press together with 

SNOOZE

to

show the DCF Signal strength

ALARM

– press briefly to display the

present alarm time

– to switch off the alarm tone (or

radio) when alarm function is
activated

– used with 

A

/

B

to set the alarm

time

SNOOZE

– to interrupt radio or buzzer alarm

for approximately 6 minutes

– to switch off the radio before the

preset 'sleep' time has elapsed

– to indicate the seconds
– press together with 

TIME

to show

the DCF Signal strength

SLEEP

– to switch on the radio for

max.90 minutes

A

/

B

– for setting the clock time, alarm

time and ‘sleep’ time

VOLUME

– to adjust the volume

BAND

FM

·

MW

– to select between FM and MW

TUNING

– to tune to radio stations

Base of the set:

Battery

– back-up battery compartment

Connecting the unit

The unit is designed to operate from a mains
supply of 230 V, 50/60 Hz~.
When the set is connected for the first time or
after a power failure (without standby battery
fitted), the display shows 

0:00

and the clock

automatically starts receiving the DCF 77 time
signal.

Standby-battery – mains failure

If a standby battery is fitted, the clock will
continue to operate during mains failure.
However, the display will not be illuminated, the
radio does not work and the alarm will not sound
unless the mains supply is restored within 2 hours
of the preset alarm time (if so, the radio will
switch on or the alarm tone will sound).
• Insert a 9 V alkaline battery (IEC 6 LF 22) into

the battery compartment on the bottom of the
unit.

• Insert the battery only after the unit has been

connected to the mains in order to prevent
unnecessary drain. 

• We recommend that the battery is replaced

after approx. 1 year.

• If the clock radio is to be disconnected for a

long period, the standby battery should be
removed, as it would otherwise discharge too
quickly and may leak.

Note on Environmental

Protection

Do not throw exhausted batteries in
the household refuse. 
Hand over the old batteries to your
dealer or public collecting points when
buying new ones.

Technical specifications

Wavebands:

FM  ................87.5 – 108 MHz
MW..........526.5 – 1606.5 kHz 

Power output:

............250 mW nominal power

The unit meets the CEE regulations concerning
interference radiation. 
This product fulfills European directives
89/336/EEC, 73/23/EEC and 93/68/EEC.
This set complies with the safety regulations
according to VDE 0860 / BS 415 and thus
with the international safety regulations
according to IEC 65.
Subject to technical alterations and alterations
in styling. E & O.E.

Note: 

The unit remains connected to the

mains even when it is switched off. 
The unit is only fully isolated from the mains if
the mains plug is removed from the wall
socket.

Important note for users in the U.K.:

When fitting a mains plug, follow the
instructions on page 2.

CONTROLS

POWER SUPPLY

9

Sonoclock 720  page 9

GB

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