PASCO EM-8677 Series_Parallel Circuit - Manual (Page 6)

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Model No. EM-8677 Series/Parallel Circuit
5
For current travel through the parallel circuit: Connect the
positive lead of the power source to the PARALLEL port. Close
Switch 1 to light Bulb 1 and/or close Switch 2 to light Bulb 2. (Switch
1 lights Bulb 1 and Switch 2 lights Bulb 2.) (See Figure 3 on page 6
for a schematic of the electrical pathway.)
Inserting and Replacing the Light Bulbs
The light bulbs come included in the package with the Series/Parallel
Circuit and insert into the metal clip holders mounted on the circuit
board. You will need to insert the the 12-volt light bulbs for the circuit
to operate properly. If you need replacement bulbs, order a package
using part no. EM-8679.
WARNING: Do not remove the bulb with the bulb lit or any
connected power sources turned on. To avoid the risk of shock, always
disconnect the red positive lead from the port on the circuit board and
turn off any connected power sources before removing the light bulb.
To remove a light bulb, use a screwdriver to gently lift up on one end
of the bulb, and lift the bulb out from the metal clips. Be careful not to
put force on the glass portion of the bulb.