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I recently bought the Panasonic CT36HX42 as a replacement for an RCA 36" HDTV that I had bought a couple of years ago and had numerous trouble with. I have had a couple of annoying problems though with the Panasonic TV that I never had with the RCA, and I'd welcome some information.
I have the RCA DTC100 hooked up through the RCA VGA to component video adapter.
1. The TV always defaults to a 16:9 aspect ratio, even though the TV, picture source (satellite or local broadcast),and satellite box are 4:3. You can manually go into the menu and change this each time you turn the TV on, but it's a mess. Panasonic told me there is nothing they can do to make sure the TV senses the right aspect ratio or that it "remembers" the aspect ratio that you entered when you turn the TV on the next time.
I am thinking about buying a new HDTV box, but I'm not sure that would solve the problem. The output of the DTC100 is a 1080i output, which is inherently 16:9. Some of the other satellite boxes allow you to choose different outputs, such as 720P or 480P, but those should also be a 16:9 aspect ratio inherently as well, correct??? - causing the TV to still default to the incorrect aspect ratio when watching standard definition TV.
- Does anyone know whether any of the other HDTV boxes, with component video outputs and selectable outputs, would work any differently, or would I still have to change the aspect ratio of the TV each time?
-Does anyone know how to "hard-code" the TV, through the service menu or otherwise, to only be a 4:3 aspect ratio on the first input?
2. The second problem I've had with the DTC100/Panasonic combo is that when viewing certain pictures (especially when viewing a true HDTV picture) that has a substantial difference between a dark part of the picture and a bright part of the picture, such as a landscape/sky picture, the edges of the picture, right around the transition of the light/dark objects, starts waving around and shrinking from both sides of the TV edge by a couple of inches or more. The rest of the picture looks fine, and the center part of the lines that are shrinking look fine - it's just that one part of the picture that has a problem.
I've adjusted the raster on the DTC100, and I've messed with the screw on the VGA converter box, with no luck. The raster made it worse, and the screw on the converter box only shifted the picture left or right, while still maintaining the wavy edge.
- Does anyone have any suggestions of things I could try to adjust to resolve this?
- Is this a common phenomenon, and is there a name for this?
I have the RCA DTC100 hooked up through the RCA VGA to component video adapter.
1. The TV always defaults to a 16:9 aspect ratio, even though the TV, picture source (satellite or local broadcast),and satellite box are 4:3. You can manually go into the menu and change this each time you turn the TV on, but it's a mess. Panasonic told me there is nothing they can do to make sure the TV senses the right aspect ratio or that it "remembers" the aspect ratio that you entered when you turn the TV on the next time.
I am thinking about buying a new HDTV box, but I'm not sure that would solve the problem. The output of the DTC100 is a 1080i output, which is inherently 16:9. Some of the other satellite boxes allow you to choose different outputs, such as 720P or 480P, but those should also be a 16:9 aspect ratio inherently as well, correct??? - causing the TV to still default to the incorrect aspect ratio when watching standard definition TV.
- Does anyone know whether any of the other HDTV boxes, with component video outputs and selectable outputs, would work any differently, or would I still have to change the aspect ratio of the TV each time?
-Does anyone know how to "hard-code" the TV, through the service menu or otherwise, to only be a 4:3 aspect ratio on the first input?
2. The second problem I've had with the DTC100/Panasonic combo is that when viewing certain pictures (especially when viewing a true HDTV picture) that has a substantial difference between a dark part of the picture and a bright part of the picture, such as a landscape/sky picture, the edges of the picture, right around the transition of the light/dark objects, starts waving around and shrinking from both sides of the TV edge by a couple of inches or more. The rest of the picture looks fine, and the center part of the lines that are shrinking look fine - it's just that one part of the picture that has a problem.
I've adjusted the raster on the DTC100, and I've messed with the screw on the VGA converter box, with no luck. The raster made it worse, and the screw on the converter box only shifted the picture left or right, while still maintaining the wavy edge.
- Does anyone have any suggestions of things I could try to adjust to resolve this?
- Is this a common phenomenon, and is there a name for this?