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It may be that your cable box is outputting at a resolution your TV doesn't recognise or doesn't support. Do you have any other connection you can use from your cable box to your TV to check the settings?
You said you tried hooking the HDMI up directly from the TV to each component, and that worked. How is it usually hooked up - through some kind of switch? I'm not completely understanding your setup here.
That tv HDMI hub output for the HD tv signal are could be a bad HDMI cable should tries it with another new HDMI cable.If still have the same problems tries it with another HDMI tv hub hook up.That tv HDMI tv hub the one u using now might have a intermittent shorting like lose or dries solders joints that why sound come an goes.
Try this. Check to see if you have the cable going round and accute corners. Sometimes the placing of HDMI sockets on the unit mean that the cable is forced into a sharp turn to route it to the cable box. HDMI cable is touchy when it comes to routing. For example an HDMI cable coming out the side of a TV and having to do an immediate 90 degree turn to get to the cable box is enough to scramble the signal. HDMI cable must not be kinked, wound up tightly or forced into tight angles. The worst offenders for this are curiously the more expensive cable as they have a tougher outer shielding that makes them more prone to situations in cramped and tight corners. If you really need to get round a tight corner, try a cheaper cable. Hope this helps
U have a lated DVD player,like less than three years old?U can hook it up with one cable wire.It call a HDMI cable.Very easy to hook up,just one end of the HDMI cable to the tv HDMI tv port hub,the other side of HDMI cable to the HDMI DVD player port hub that it.Now u,must know with HDMI hub port u put ur signal in like 1 to 4,now go to that HDMI port hub,and will find ur dvd disc picture in playing in.
Check if it has a scrambled image on all sources ie - DVD- VCR - cable/satellite box. Since the PIP is normal it sounds like the signal source is bad.
Post back with more info about your set up (what's hooked to your TV) if you need more info
the HDMI cable sends all the audio and video down one line, and unscrambles scrambled high def content when required, and fits in the rear of the tv, the slot looks very similair to a usb slot.
If you cable box has an HDMI slot you can use that instead of a scart lead and choose HDMI on your tv output
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