User manual

WBA-1/WBA-2 English
Page 27
The following points are inapplicable if you have purchased a ready-
built module.
§ Remove all loose parts, wire ends or drops of solder from the PCB.
Remove all sharp wire ends.
§ Check that solder contacts which are close to each other are not
unintentionally connected to each other. Risk of short circuit!
§ Check that all components are polarised correctly.
When you have remedied all faults, go on to the next part.
Performing a functional test and
connecting the double flashlight
If you have purchased a ready-built module, check all functions.
Transport damage can never be excluded.
Connecting WBA-1
Follow the connections diagram WBA-1 Fig. 2. Test the module with
two LEDs. Connect the LEDS with the sockets "LED1-", "LED+" and
"LED2-". Pay attention to the polarity of the LEDs.
Then connect the module with the power supply (sockets "12V" and
"GND"). If you connect it to alternating (a.c.) voltage, the polarity of
the connections is not relevant, if you connect it to direct voltage (d.c.)
it is! Switch on the power supply. Now the LEDs must flash in turn.
Connecting WBA-2
Follow the connections diagram WBA-1 Fig. 3. Test the module with
two LEDs. Solder the LEDs to the soldering points "LED-1(-)",
"LED-2(-)" and "VCC". Pay attention to the polarity of the LEDs.
Then solder the wires for the power supply to the soldering points
"GND" and "Uin". If you connect it to alternating (a.c.) voltage, the
polarity of the connection is not important, if you connect it to direct
voltage (d.c.) it is. Switch on the power supply. Now the LEDs must
flash in turn.