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6.
ADJUSTMENTS AND SETTINGS
The Game PC Board Assy is fitted with 4 Option Switches.
The JAMMA (B) PCB has the Volume Control fitted.
6-1
Option Switches
Switch 1 is used to change between Test Mode and Game Mode.
Switch 2 is used to set the output level of the video signal.
31kHz
15kHz
Switch 3 is used to change the monitor Sync Frequency
Note: When using a 31kHz monitor, set the RGB input of the monitor to 0.7v. If the
monitor does not have a setting adjustment, refer to page 17 section 6-2-1
"Display Test", and change the Contrast and RGB Brightness levels to adjust
the brightness.
Switch 4 is used to set the Video Sync Signal
Note: The game must be switched OFF and back ON for changes to switches 2,3,
and 4 to take effect.
Volume Control
ON: Test Mode
ON: 0.7V p-p
ON: 0.7V p-p
ON: 31kHz
ON: Composite Sync
Option Switches
NO
JAMMA (B) PCB
OFF: Game Mode
OFF: 0.7V p-p
OFF: 3.0v P-P
OFF: 15kHz
OFF: Seperate Sync
Page 15
ON
OFF
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