
PREPARATION (Continued) | Cable Connection  | 
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Rear view of main unit
1.BNC Video OUT is passive loop out.
2.If BNC Video IN is applied, RCA Video IN will be disabled.
  | EXT. Speaker  | 
  | KEY control  | 
(option) BNC Video  | |
IN & loop out  | 
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<Main board connectors> | EXT. DC | 
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VGA   | 12V Video 1 L  | R Line Video Vdeo2 IR  | |
sound  | DC IN  | OUTPUT  | Ext.  | 
*VIDEO OUT is active output for Video 1 or Video 2 input.
If 
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