Rail King USRA 2-8-8-2, Руководство по эксплуатации

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USRA 2-8-8-2 Steam Engine Operating Instructions
If you need to replace the battery, they are available from MTH
Proto-Sound® Electronics at 7020 Columbia Gateway Drive, Columbia,
MD 21046-1532. A standard 9v alkaline battery can be substituted as a
temporary fix, but, since alkaline batteries can’t take a charge, it will
eventually wear down.
MANUALLY ADJUSTING THE PROTOSOUND® VOLUME
Your Proto-Sound® system has two types of volume adjustment. A
manual turn knob on the bottom of the chassis (See Fig. 6 below) allows
you to control all the sounds in the system and a remote control “RESET"
option (Option # 6) allows you to control the volume level of the engine
chuff sounds remotely from the transformer. Turning the volume
adjustment knob one direction will increase the volume. Turning it the
opposite direction will lower the volume of all sounds: bell, whistle, and
enhanced neutral sounds. For information on operating the RESET volume
adjustment option, see the section entitled “Programming Proto-Sound®
RESET Options” on the following pages.
Figure 6: Adjusting The Proto-Sound® Volume