Vivitek RP56HD21-A - Manual (Page 24)

Using RGB Video
To connect your HDTV decoder set-top box using RGB video :
1 Connect the 15-pin D-Sub RGB jack on the back of your HDTV set-top box to
the RGB-IN jack on the back of your RPTV.
2 Connect the red (R) and white (L) audio-out jacks on the back of your HDTV
set-top box to the R and L audio-in jacks on the back of your RPTV.
3 Select RGB using the INPUT button on the front of your RPTV.
After you connect your HDTV set-top box to the RGB input jack on your RPTV, your
may need to adjust various RPTV picture settings to correctly match the output from
the HDTV set-top box.
Please refer to page 46~48 as the related resolution supported timing table.
Audio Video