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I GOT ONE THAT I BET WILL STUMP YA!!!

954 Views 8 Replies 5 Participants Last post by jmlevy, Mar 1, 2005

99MustangGT1

Discussion Starter · Mar 1, 2005

I have a 42" Toshiba Plasma and I am having a problem. I have it hooked up to a Toshiba SD-5970 upconvert DVD player. When I am watching DVD movies and they are in widescreen with the black bars present I get green dots all the way through the bars from one side to the other. This only happens when the screen is darker when it is a brighter scene I don't notice them at all and the black bars look fine. I thought it might be the DVD player, so I took it upstairs and hooked it up to my 50" Samsung DLP and it did the same thing, but worse. I then brought my Samsung DVD player downstairs and hooked it up to my plasma and the same problem, yet when I watched the same movie on my DLP with the Samsung player there were no issues. I have the Toshiba player and tv hooked up through a Monster HDMI to DVI cable which I have replace twice thinking that might be the problem. I also have everything plugged into a Monster power center. I love the tv, but would love for these annoying green dots to go away. Any help would be greatly appreciated...Sorry for the length.

Sincerely,

Confused

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Karyk

· #2 · Mar 1, 2005

Couple of wild-assed guesses:

1. Have you tried switching the order that you turn the DVD and set on? It might be some strange HDCP issue.

2. Have you calibrated the set with something like the Avia DVD? I only ask that because it seems to be affected by light level.

And BTW, you're wasting your money on Monster products. IMHO they are poor quality, but with a digital connection like HDMI (DVI) the quality of the cable really doesn't matter. The cable pretty much either works or it doesn't.

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99MustangGT1

Discussion Starter · #3 · Mar 1, 2005

The only thing with that is then why would it do it on my Samsung also. That has been done with an AVIA disk also. I haven't tried that yet on my plasma though.

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Karyk

· #4 · Mar 1, 2005

Quote:

Originally posted by 99MustangGT1
The only thing with that is then why would it do it on my Samsung also. That has been done with an AVIA disk also. I haven't tried that yet on my plasma though.

Maybe it's because you calibrated the DLP upstairs on the Samsung DVD, but not with the other DVD player, and didn't calibrate either DVD player with the set downstairs? Different devices will require different settings.

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99MustangGT1

Discussion Starter · #5 · Mar 1, 2005

I just looked closely on cable tv and it does it also. The green dots or interefence actually run from left to right and top to bottom, but they do go away when the picture is brighter. Could it be because my outlet that provides power to the power center which runs everything might not be grounded or if it is... grounded poorly?

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Karyk

· #6 · Mar 1, 2005

I really don't know. You might try unplugging everything in the house, including the power centers, and only plugging the TV and DVD player (worst offender combination) into the same outlet (or same surge protector that is not your Monster Power stuff if you're not comfortable with no surge protection for a short term test).

Items to unplug would especially include anything connected to the TV, and do what you'd do to diagnose and X10 issue, such as unplugging anything like an electronic air cleaner, microwave, etc. I do know that for X10 diagnosis, cutting power to 220 devices such as water heaters can help because they can bridge interference (and also help diagnose signal issues by turning one such device on (such as a dryer or stove element) to connect the two out of phase circuits).

Also, just to give you some idea of why I don't like Monster products, years ago I went to great effort to try to get rid of ghosting from analog cable. Turns out the culpret was Monster cables, and the solution was generic cables. Try using a cable that came with one of the DVD players, or some other generic cable (or a component set).

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Paul Bigelow

· #7 · Mar 1, 2005

My guess:

Mosquito noise coupled with some sort of auto "black enhance"/ "black crush" mode on the player/TV.

Paul

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1920x1080

· #8 · Mar 1, 2005

Quote:

Originally posted by 99MustangGT1
I have a 42" Toshiba Plasma and I am having a problem. I have it hooked up to a Toshiba SD-5970 upconvert DVD player. When I am watching DVD movies and they are in widescreen with the black bars present I get green dots all the way through the bars from one side to the other. This only happens when the screen is darker when it is a brighter scene I don't notice them at all and the black bars look fine. I thought it might be the DVD player, so I took it upstairs and hooked it up to my 50" Samsung DLP and it did the same thing, but worse. I then brought my Samsung DVD player downstairs and hooked it up to my plasma and the same problem, yet when I watched the same movie on my DLP with the Samsung player there were no issues. I have the Toshiba player and tv hooked up through a Monster HDMI to DVI cable which I have replace twice thinking that might be the problem. I also have everything plugged into a Monster power center. I love the tv, but would love for these annoying green dots to go away. Any help would be greatly appreciated...Sorry for the length.

Sincerely,

Confused

I don't think it's unheard of for plasmas to exhibit some noise in the lowest couple of black steps. My 7UY does and I've read that even the vaunted Fujitsu 30 series does.

With my 7UY it's far worse with SD DirecTiVo than it is with HD TiVo or DVD. I have a feeling it's because the black pedestal is higher with DirecTiVo (S-video upconverted to component) than with HD TiVo (component) or my DVD (component with black pedestal set to 0 IRE equivalent). I compensate for this by lowering the black level for DirecTiVo using my video processor.

Does your Tosh DVD player have a black pedestal setting?

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jmlevy

· #9 · Mar 1, 2005

I've heard of just plain ol problems with some player TV combinations that dont like to handle an HDMI to DVI conversion cable.........in other words.......it might not be fixable because the DVD player doesn't like the conversion..........

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