Pinball Pro Data East SWTR-3 Instructions

SWTR-3 Instructions
For Data East/Sega Sound Systems
(stereo output audio board and two speaker mono systems)

Backbox Speaker Installation Instructions

Review all of these instructions before beginning.
1. Open the upper backbox by removing the backglass and swing open the light panel. Lift out the upper
speaker assembly and lay it face down on the glass top. Use a towel under the assembly to keep it from
sliding and getting marred.
2. Un-plug the speaker wires from the sound card that lead to the backbox speakers. You may have an
intermediate plug of 8 pins with two 4 socket headers connected. Un-plug the speakers there if this is the
case. Un-screw the left and right backbox speakers. Remove the whole assembly of speakers and wiring.
3. Mount the new 4-inch speakers on the left and right, and face the terminals toward the top edge of the
speaker panel. Use the new screws and spacers, or stud extenders provided and snug them, but do not
over
tighten.
4. Carefully connect the new wiring harness leads to the speaker terminals. The left pair as plugged on
the sound card or intermediate connector goes to the left speaker. Note the black striped wire is negative
and the all red wire is positive (+). Connect the positive wires to the terminals on the right that are also
marked with a red dot. Not all machines are wired the same so you may not be able to use the new wires.
In this case, use the original wires by disconnecting from the original speakers and connect to the new
ones. Be sure to observe correct polarity for the proper sound.
5. Re-assemble the backbox and adjust the volume of the speakers to suit.