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Grundig Sonoclock 740 Manual

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Setting the time zone
The time signal transmitter DCF 77 transmits the time valid in
middle-europe, or the Daylight Saving Time of middle-europe.
When using your Sonoclock 740 e.g. in the U.K., you can
set the clock one hour earlier, as follows:
• Disconnect the mains plug from the wall socket.
• Remove the standby battery (if fitted)
• Press and hold the TIME button while inserting the AC
mains plug in the socket.
– The Sonoclock will start to receive the DCF 77 time signals
and will automatically adjust the time one hour earlier than
the received DCF 77 time.
Automatic time setting
When the clock has been connected, the time display shows:
:59
The colon next to the seconds indication flashes. If the signal
strength is sufficient, the colon indication flashes once every
second and the seconds are count up until a correct time
telegram has been decoded. The display shows the exact
time and the correct week day indication lights up.
If this is not the case after several minutes, the signal strength
is poor or there are signal-interferences. The display indicates
'HALLO'. You should then reposition the connected aerial and
change its direction, for example, in a horizontal position at
right angles to the receiver, farther away from the receiver (at
least 50 cm), and away from metallic objects or switched on
TV receivers, until the colon indication flashes regularly once
every second.
To help you, the Week Day indicator also shows the signal
strength (SIGNAL 1…7 6). The higher the number of the dot
that lights up, the stronger the signal.
The clock is now running exactly to the second. The clock
continues running being controlled by the internal quartz time
base (4,19 MHz). Synchronisation through DCF 77 takes
place once every hour.
15
CLOCK SYNCHRONISATION
GB
… 15 …


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