What is this wavy ripple effect with Philips HDTV and DirecTV?
Chris asked:
I recently purchased a Philips 32″ HDTV. I have my DirecTV connected to it, and I notice that there is sometimes a ripple or wave effect across the screen. In some cases, it is like a line of ripples is moving across the screen. Sometimes it is strong, sometimes it is nonexistent, depending on the channel and sometimes how long the TV has been on. The problem does not occur with any other source. The DVD source plays perfectly with no distortion whatsoever. I’m confident that this is just a signal issue and not a TV issue. My question is,what exactly is this phenomena and is there any way I can eliminate this?
I’m using standard cable that I’m using to switch it to channel 3. The receiver is standard definition so I’m not using any HD input into the TV, only regular cable wire. The cable is only about a year old. Are you saying I should try to get a new cable and see if that works and then if not, it’s the receiver? My initial thoughts were the receiver, but it is also only a year old and never showed problems with my old SDTV.
I recently purchased a Philips 32″ HDTV. I have my DirecTV connected to it, and I notice that there is sometimes a ripple or wave effect across the screen. In some cases, it is like a line of ripples is moving across the screen. Sometimes it is strong, sometimes it is nonexistent, depending on the channel and sometimes how long the TV has been on. The problem does not occur with any other source. The DVD source plays perfectly with no distortion whatsoever. I’m confident that this is just a signal issue and not a TV issue. My question is,what exactly is this phenomena and is there any way I can eliminate this?
I’m using standard cable that I’m using to switch it to channel 3. The receiver is standard definition so I’m not using any HD input into the TV, only regular cable wire. The cable is only about a year old. Are you saying I should try to get a new cable and see if that works and then if not, it’s the receiver? My initial thoughts were the receiver, but it is also only a year old and never showed problems with my old SDTV.
Well, it depends….are you using the HD VIDEO CABLES or the Channel 3 RF CABLE?
Tuners develop more waviness than HD cables because they use the OLD NTSC ANALOG signal, which is the worst way to deliver signal over all the other choices. But if you choose it, get a NEW RF cable….
If you are using the OTHER video cables, then suspect poor grounding on the cable…..
The worst thing is it MIGHT be the DirectTV box…..
So….start swapping CABLES first and see if you consistently get wavyness on RF and Video outputs from Direct TV….if so, get a new box.