WHAT TO DO IF...?
No display of time, only fixed colon
mark.
no synchronisation after the
installation.
Irig-B / AFNOR clocks not on time
after a time setting on the master
clock.
A receiver clock on a ½ minute
network is 30s alter after the
installation.
Incorrect year on an Irig-B network.
Minute or ½ minute receiver with fixed
display of time and 2 dots.
AFNOR or Irig-B receiver with no
display of time, the 2 dots fixed and the
clock pictogram flashing.
The display is completely blank.
The radio pictogram flashes once
every 5 seconds.
The time synchronisation of the
clock is correct (the radio pictogram
is on fixed display), but the time
change has not taken place, the
date or the time is not correct.
... CHECK.
The DHF clock has received no time message for
more than 24 hours, check the DHF transmitter
operation.
Check that the type of signal send by the master
clock (min, ½ min, AFNOR or Irig-B) is in
accordance with the type programmed in the
clock.
1) wait the hour stroke on the slave clock so that it
search to be synchronised,
2) change manually the time of the clock, so that
it will have to do an immediate search of AFNOR
or Irig-B synchronisation.
It is impossible for a slave clock to discern between two
1/2 minute impulses which one is the master clock
minute stroke, the reversal of the two wires is needed to
correct the time.
Year must be manually entered on an Irig-B
network.
lack of impulse, check the master clock and the
network.
Lack of time coded message since more of 24 H.
Check the master clock and the network.
The batteries are completely discharged, replace
them.
No radio reception, move the clock.
Check in time change mode that the clock is
correctly programmed (reread the note on
page 27, § 6).
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