NEC PX-50XM4 series Service Manual page 531

CONFIDENTIAL
 Operational descriptions
• When the loop output is turned on, the VIDEO1 and RGB1 terminals become available as the appropriative terminals for loop output with the effect of the VIDEO
SW (for loop).
• The signal input from the VIDEO2 is obtained from the VIDEO1 terminal, while the signal input from the RGB2 is obtained from the RGB1 terminal.
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