Hitachi 42EDT41A Operating Manual page 14

REAR PANEL JACKS
RGB1 - Digital Input (DVI-PC / DVI-STB)
Use this DVI input for your external devices with DVI output (see pages 20 and 55).
RGB2 - Analog Input
Use this 15-pin D-Sub input for your external devices with RGB output (see pages 20 and 55).
RGB1 - Audio Input
Connect audio for RGB1 input (if you have mono sound, insert the audio cable into the same jack).
RGB2 - Audio Input
Connect audio for RGB2 input (if you have mono sound insert the audio cable into the same jack).
Service Adjustment Port
This port is for service adjustment only.
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