Setup:
Toshiba 62 DLP (62MX196)
Philips Personal Home Theater System (HTS6500)
XBOX 360
Motorola HD DVR DTC6412 w/ Insight cable

How its connected.
Philips to TV - HDMI
XBOX to TV - component
Motorola to TV - HDMI
TV to Philips for surround - RCAs

There is a slight echo sound when I have the philips turned on, but ONLY with cable. Xbox and of course the philips itself, there is NO problem. The echo becomes less when I use the RCAs on the back of the cable box and run direct to the philips player, but still there. I bought a digital cable that I was planning on using from the cable to the philips, but it doesn't have a plug on the cable box for it. Any suggestions on fixing this?

There is a slight echo sound when I have the philips turned on, but ONLY with cable. Xbox and of course the philips itself, there is NO problem. The echo becomes less when I use the RCAs on the back of the cable box and run direct to the philips player, but still there. I bought a digital cable that I was planning on using from the cable to the philips, but it doesn't have a plug on the cable box for it.

Are you trying to listen to both the TV speakers and your HT at the same time? Don't.

To get a Dolby Digital signal to your HT you must use a digital audio connection with the source, not the left/right (usually red and white), RCA connections. The two connections just carry ordinary stereo. Your HT may process that into a pseudo-surround. HDMI does carry the digital steam to the TV but without a digital connection to the HT you won't have DD.

The moto 6412 has both an RCA digital audio out jack and and optical digital audio out as I recall. Use whichever one your Phillips will accept. If you use optical (Toslink) buy the least expensive you can get (Radio Shack quality). The same goes for RCA connector digital audio (it is just 75 ohm coax like RG59 or RG6--there is nothing digital about the cable--it's exactly the same as used for a cable tv connection.)

Are you trying to listen to both the TV speakers and your HT at the same time? Don't.



This is my first thought about it too.