LG 26LN4500 - Manual (Page 22)

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22 MAKING CONNECTIONS
Method C: RGB Connection
RGB IN (PC)
AUDIO
IN (PC)
(*Not Provided)
(*Not Provided)
AUDIO OUT
RGB OUT (PC)
PC
Method B: dVI to HdMI Connection
If you want to use HDMI-PC mode,
you must set the input label to DVI mode.
HDMI IN
(MHL)
AUDIO
IN (PC)
(*Not Provided)
(*Not Provided)
AUDIO OUT
DVI OUT
PC