johngla
Novice
Mar 29, 2005, 11:52 AM
Post #210 of 218
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Re: [chief barker] GOODMANS GTV42P3 42 " PLASMA TV
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Just realised I didn't answer your last question.
To be honest I was a little disappointed when I first switched it on but I've done quite a bit of fiddling since and I'm very happy now, especially as I know it has the potential to look even better once certain knowledge becomes more freely available. It's a bit of a learning curve with plasma screens. I know the screen has even more potential for a better image, as and when I find stuff out I'll post it.
What I know so far about my set is:
> Green channel is about 20% weaker than red and blue, this give some banding but you get used to it (i.e. R:50, G:50, B:50 ends up being R:50, G:40, B:50 which isn't grey!). I'm pestering goodmans for information because this is fixable, it might just be my set so we'll have to see what they say. I have a computer connected to it (via DVI, very high quality image on 1:1 mode) and I was able to compensate for the weakness as an experiment, static pictures looked awesome after this, still some glow/banding on moving images, that's the regular plasma effect that almost all screens get.
> I had a goodmans contracted enginer in to replace a faulty video board (it squealed, not loudly, just at an annoyingly high pitch, it's not normal and they fixed it, they're email support replied in about 3 minutes, I was very impressed, took a while longer to arrange for the engineer to visit, I called there office down south to moan and I got a call back within an hour from an engineer so they do try and be good at support with a bit of poking).
> After the engineer visited (and seemed to loose some screws for the back) I decided to have a look inside myself (I'm an engineer, don't do this yourself, there are lethal voltages in there). I tidyied up the cabling (separating power and data cables, moving those cables away from the circuit boards) and screwed the video board down properly. The contract engineer had cross threaded most of the screws. The most important tidying I made was moving the internal ariel cable away from the scart connectors, it seems that was causing some noise on the scart inputs. The picture looks a lot sharper now. This isn't really different to any other set, it's just when you have a much bigger screen, little bits of noise get big so you have to be more careful. This is also why I'm looking forward to HDTV broadcasts in 2006 from sky and the cable companies. Currently certain cable channels (paramount, livingTV, etc) don't get a very high bit rate and thus look grainy, it's not very bad but I know it can be better.
Calibration of the set helps hugely, currently all we've got is brightness, contrast colour and sharpness but they'll do for now (factory mode menu which has individual colour adjustments is present but locked out). I made an SVCD (has to be calibrated via the input you will be using, i.e. calibrating via DVI does nothing for the scart plugs) that contained a set of colour bar that allowed me to calibrate the contrast and brightness.
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