Screen positioning errors

[kyo_244]

Ok im maybe i bit picky.. but what the hell is it that causes screens to go tits up on me?!? Im mainly talking about CRTs. I have 2 sony trinitrons one 4:3 and another 16:9 and it seems that the screen is getting higher and higher all the time.. and this black border is apearing at the bottom and getting larger by the week.
(I think its the equivilant of h-position on a monitor but I could be wrong)

The gamecube and wii have an option where you can adjust the left and right position of your screen, but that doesnt help.. That sometimes causes geometry problems. Is this a common fault? Will the screen end up half way up at some point? This is expecially annoying when Ive gotten both my MD and Snes modded for 60hz full screen!

Any help on the matter would be mucho appreciated!

[smouty]

On a CRT the screen positioning ic basically controlled by electro magenets which change over time and need adjusting but your is going out by a lot in a short space of time.
Some recentish screens have an 'engineer' mode where these things can be compensated a bit.

[Pilotwings]

I remember my freind bought a CRT and it was out of line so he took it back to the shop and they fixed it for him.

So it must be fixable on most of them. Bit **** if you have to find out how to do it yourself I would imagine.

It must be quite common cause my old tv used to do it with an x-box but my new crt seems perfect for everything thank god.

[charlesr]

There was an engineer mode on my old CRT in which you could change all the geometry. Secret combo of buttons and remote keys.

[fallenangle]

The problem, as described, shouldn't be happening unless there is something wrong with the TV. With the same game and all TV settings identical the top/bottom borders should not be changing, certainly not increasing over time.

I don't think it's what's needed here anyway but if you enter the TV's 'Service' mode there is always a VERY real potential for crocking your set permanently if you don't know exactly what you're doing. With some just entering the mode returns everything to factory default - good luck getting that sorted out youself.

I have a Sony Trinitron CRT I would dearly like to alter what I think is called the trapezoid settings but I'm simply too scared to do it even though I know the general way of getting into Sony's 'Service' mode.

Get an engineer, preferably a Sony specialist. That's what I'd recommend - cheaper than ruining an expensive TV.

[kyo_244]

The problem, as described, shouldn't be happening unless there is something wrong with the TV. With the same game and all TV settings identical the top/bottom borders should not be changing, certainly not increasing over time.

I don't think it's what's needed here anyway but if you enter the TV's 'Service' mode there is always a VERY real potential for crocking your set permanently if you don't know exactly what you're doing. With some just entering the mode returns everything to factory default - good luck getting that sorted out youself.

I have a Sony Trinitron CRT I would dearly like to alter what I think is called the trapezoid settings but I'm simply too scared to do it even though I know the general way of getting into Sony's 'Service' mode.

Get an engineer, preferably a Sony specialist. That's what I'd recommend - cheaper than ruining an expensive TV.

Well to be fair i dont think its that expensive tbh. Its an old 4:3 CRT, plus its the TV that came with the flat but yes I know what your saying.. I do enjoy playing my old stuff on my good ol 4:3 And I wouldnt want to screw that up.. But I imagine getting a technician can cost an arm and a leg if you live in Glasgow .. -_-

[Profit]

It's quite easy to adjust settings, here's a starter guide. It'd help if you know your model:

http://myweb.accessus.net/~090/sonypal.html#intro

[kyo_244]

It's quite easy to adjust settings, here's a starter guide. It'd help if you know your model:

http://myweb.accessus.net/~090/sonypal.html#intro

KV-X2532U Trinitron.. but that warning notice kinda scares me to be honest..

[fallenangle]

KV-X2532U Trinitron.. but that warning notice kinda scares me to be honest..

Exactly, it repeats my earlier comments.

Amateurs playing around with the service mode do so at their own risk. It's a gamble which may save you money but it can cost you too so it's better to limit such experiments to a set you don't mind mucking up.

But as I said, I don;t think the service menu is going to help with the problem anyway.

[Profit]

It seems your model doesn't have a service menu. Has to be adjusted on the motherboard.

[Profit]

Amateurs playing around with the service mode do so at their own risk.

I've never come across any option on service menu (Sony, Samsung and Panasonic) that had any demaging effect on the set. They are exactly the same as the ones on your monitor; it's just because they are hidden people think they have some destructive function. Like monitor settings, you see the effects in realtime, so you can just change the setting back or reset to default.

[smouty]

That is true for Geometry but the service menus also contain many other settings that if modified and not understood can easily render the set unwatchable.

[Profit]

I've never seen a setting that renders the set unwatchable without the option of reverting the change.

One does just as worse by turning the brightness setting to 0 on most sets.

[Lyris]

I've never come across any option on service menu (Sony, Samsung and Panasonic) that had any demaging effect on the set. They are exactly the same as the ones on your monitor; it's just because they are hidden people think they have some destructive function. Like monitor settings, you see the effects in realtime, so you can just change the setting back or reset to default.

Some of the Pixelworks-based Sony TVs (the LCD WEGA range and the first European BRAVIAs since they were basically a last minute rebrand) can be completely buggered up by playing in the service menu. I know, because I managed to do it (but also managed to fix it). There's options to readjust the white balance and also to wipe the EEPROM, amongst other nasties.

On the newer Sony TVs (the ones with the blue and yellow "WEGA GATE" style menus), there's not a lot harm that can be done.

[fallenangle]

It was only a general warning but virtually every specialist site I've been to dealing with getting into the service menu repeats it.
Sure as far as geometry is concerned there's not much to go wrong particularly if you record the initial settings.

But just identifying what is what in the menu can be scary. On my JVC geometry doesn't appear to be there at all. The menu's all abreviated and it's actually under the sub heading: DEF. (presumably for deflection). It took me ages to get confirmation of that.

Even when I did the first thing you go to on the settings list is something called Free Run. I still haven't the foggiest idea what that means except the picture scrolls uncontrollably.

That worried me (to put it mildly) until I realised I could scroll down and found most of the rest of geometry menu was much clearer. But there are still other setting abreviations I can't begin to guess at.