6-10
Trouble Shooting
Chapter 6
(17)
Terminal for option module "Slave clock function/ DCF", plugged in at X6
Slave clock function (POLA):
Input voltage 12 - 60 V,
Input current 2 - 10 mA
unipolar and bipolar impulses
DCF:
Voltage supply for DCF-receiver max. 12 V
Output current max. 5 mA
(18)
Fuse for Signal Output
50 mA T
Change of Fuse for Signal Output
The low power signal output is protected by a replaceable fuse.
This fuse only effects the signal output and is not relevant for the whole unit. The
fuse in the external power supply is meant for the unit itself.
Use only fuses with the same technical data.
→
See appendix A "Technical
Specifications".
Attention
Before changing the fuse, switch off the unit and disconnect the
power supply.
1.
Open the unit with the key and remove the front cover.
2.
Disconnect the power supply (see illustr.).
3.
Switch off the unit.
4.
Slightly pull out the fuse from the fuse plug (see illustr.).
5.
Take the new fuse and insert it into the fuse plug.
Polarity need not be observed.
6.
First connect the power supply and then switch on the unit.
7.
Check the display. Current date must be displayed.
20
VA
C
NC
Fig. 20: PC-board with power switch and fuse for signal output