Sega 999-1108 - Manual (Page 34)

27
Open the coin chute door, and the switch unit shown will appear.
The functioning of each SW is as follows:
The sound volumes of the front and rear speakers are adjusted as indicated by the illustration on
the switch unit, at the factory before shipping. This adjustment aims to attain the best output
balance between the front and rear speakers. Remember that carelessly changing this adjustment
may cause the best balance to be lost.
BASE SHAKER Output Adjustment Volume
FIG. 8. 1 a SWITCH UNIT
8 - 1 SWITCH UNIT AND COIN METER
Adjust to the optimum sound volume by considering the environmental
requirements of the installation location.
If the COIN METER and the game board are electrically disconnected, game
play is not possible.
A cover is provided on the bass shaker output adjustment volume in order to
prevent the BASE SHAKER against being carelessly adjusted.
Never touch places other than those specified. Touching places not specified can
cause electric shock and short circuit hazards.
STOP
IMPORTANT
SWITCH UNIT
SOUND VOLUME
TEST BUTTON
SERVICE BUTTON