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Because the ProtoSound® system or DCRU® reverse unit found in your
powered MTH PA A unit is not directly connected to the DCRU® unit in
your powered PA B-Unit, you must cycle the power on and off slowly to
maintain proper synchronization between each powered unit's reverse unit.
If the units should become unsynchronized, simply shut down power for
three or more seconds. Upon repowering, each unit should come up in
RESET. If you choose to operate your existing PA A units in a
"locked-out" state, a lockout switch on the powered PA B-Unit has been
provided so that you can manually "lock-out" the B-Unit in the same
direction the powered A Units are configured.
Using The Powered PA B-Unit With PFA/FYS
Equipped MTH PA AA OR ABA
You can utilize the PFA/FYS that came equip on previous MTH Premier
PA AA or ABA by reading the following instructions. Refer to your
Premier PA AA or ABA for operation instruction of PFA/FYS. Your MTH
Premier Powered PA B-unit has a DCRU installed in it, which is not
directly connected to the ProtoSound of your powered A unit. Because the
Powered B-unit is not directly connected to the ProtoSound, the Powered
B-unit will cycle its directional states while the ProtoSound A unit is
playing the PFA/FYS events. To operate the Powered PA B-unit with your
ProtoSound A unit, the only thing to remember is not to set the voltage on
the transformer too high, not above 8-10 volts. If the voltage is set to high,
the Powered B-unit will begin vibrating on the track, as its motors will be
turning. Since the directional cycles of the DCRU are insink with the
number of events played during the PFA/FYS, the Powered B-unit will start
in the same direction as the ProtoSound A unit after the PFA/FYS has
finished playing.
Premier PA B-Unit Operating Manual
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