Installation guide
      Aftermarket LCD Upgrade Manual   
28    P/N 400-283-301 Rev A 
5.2  Serial Monitor Control Box 
The Serial Monitor Control Box is used in cases where the scoring system provides control of 
TV (Ads) function. Connections are made from scoring control to the green terminal strip 
(TS) (pictured below center) and to the monitors RS-232 (SERVICE) connection (DB-9). 
At right is a portion of drawing 400-283-302-05, showing the 
connections to the serial monitor control box. In this configuration, 
connections are made with a 4 conductor cable (red, black, green and 
white) to the terminal strip connections TS-3 & 4 and TS 7 & 8. In 
addition to these connections, there is a DB-9 cable that splits out to 
each monitor and attaches to the serial connector of the monitor 
(labeled SERVICE). 










