18
E8 Operating Manual
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 PROTO-SOUND®
VOLUME
Your Proto-Sound® system has two types of volume adjustment. A manual
turn knob on the bottom of the chassis (See Fig. 4 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 sounds
remotely from the transformer. Turning the volume adjustment knob one
direction will increase the volume. Turning it the opposite directions will
lower the volume of all sounds: bell, horn, engine sounds, Cab Chatter, etc.
For information on operating the RESET volume adjustment option, see the
section entitled “Programming Proto-Sound® RESET Options” on the
following pages
ProtoSound
Volume Knob
Figure 4: Adjusting The ProtoSound Volume
