Question about LG LFD790 System

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LG LFD790 installed with cable

I can get the LG LFD790 to work with DVD's, but not with my cable box and plazma. I have a comcast dvr cable receiver connected to my Samsung plazma via the hdmi cable. How do I get this so I can use the LG LFD790 home theater system with both dvd's and cable tv?

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Posted on Jun 18, 2008

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If there is an input on the back of your cable reciever get a fiber optics cable and put it in to your theater system and into the box then select "ez/optical" and your tv should come through, or you can connect the fiber optics cable on the back of your tv into the system and keep the tv volume off

Posted on Feb 24, 2008


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I have a 55" LG

Easy solution; this is a very common problem. Connect Cable or satellite box / DVR directly to one of the TV HDMI inputs. Connect an optical audio cable from that box to receiver so sound is surround through your speakers. You cannot connect DVR directly to receiver because the anti pirating chip will shut off the picture and produce a green or no screen at all.
You can, however, connect a BD (Blu-Ray) player via HDMI cable directly to your receiver without that problem. Connect HDMI output from receiver to a second HDMI input on the LG.
Contact me if you need more help! All the best, John

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I have a Philips DVDR 3575H. using Comcast's

Try this set up-

Use an RCA audio/video cable for this set up (Yellow/Red/White).

Connect from the Video out (Yellow) connection on the back of the cable box to the Video in on the back of the DVR.

Connect the audio (Red/White) cables from audio out connection on the back of the cable box to the "Audio in" on the back of the DVR.

This should still get you a decent picture but not a true HD picture for your recordings.

When you set the timer to record set it to record either E1 or E2 depending on which input you connected the cable box to and ensure that the cable box is tuned to the channel you wish to record.

*** NOTE: If you keep the HDMI cable connected as you have for the cable box and watch normal TV through the HDMI input on the TV you will get HD programming for your general viewing but still have the option to record with the DVR at a lower quality. ***

Good Luck and please rate this solution....

Jan 07, 2010 | Philips DVDR3575H/37

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It turns out that the DVR has to be on channel 3, and the channels are controlled by the cable box! I somehow had missed that part. With the DVR on channel 3 and the channel being changed through the cable box it is very awkward to try and do any recording unless it happens to be what you are watching, so I have basically given up the whole idea and am planning to return my cable box an go back to basic.

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