is there a way of bypassing my lcd tv tuner
as i think its nacked because when i use my analogue arial
i get red and green bands of color and b/w picture
because i think my cable box can do this
i just go to settings and flick it to rgb and its fine
vcr, camcorder ps1 ps2 all do not work i just get the bands of color
please can you help as i cant afford to by another tv

When you use an external input such as AV1 or AV2 etc you are not using the TV tuner. The TV tuner is only relevant to RF signal input. But if you are saying that the AV1, AV2 inputs don't display a working picture either then it sounds as if the video processsing is at fault.

The only way to do that is to use any of the input sockets on the back of the telly EXCEPT the aerial. ie HDMI, SCART, AV Phonos, S-Video etc.

I suspect your cable box is already connected via SCART. If the other devices are connected via a RF lead into the aerial socket then they will get the same problem as normal TV. But if they are also SCART/AV sockets then something else is going on. If they are not connected via SCART/AV sockets then try switching to those and see if the problem goes away.

Of course it depends on what connections the TV has and if they match the other devices. The VCR will probably have SCART so that should be easy to sort. The PS1/2 will probably have composite video and audio on three phonos (probably via an adapter plug/lead) You can get converter plugs to convert phonos to SCART if there are no phono connections available. The next problem of course is having enough sockets to connect everything up at the same time!

A possibility that I have seen on a cheap Goodmans set is when you have a SCART connection using RGB it screws up the rest of the TV. Basically whatever is on the SCART bleeds through over the top of everything else. An effect not far removed from what you describe. And it affected normal TV via the aerial and anything else connected via the other SCART and AV sockets.

Easy way to check is to unplug the cable box, or put it into standby, if the problem goes away then you have the source. In that case there are only two ways to correct it. Buy a better telly, which I suspect is not an option, or switch the cable box away from RGB. This may result in a degredation in picture quality but may be your only solution.

Yes it happens when i am using any of the composite and
scart inputs, but not when using ntl/virgin box because i
switch it to rgb in the ntl/v-box menu.
how do i switch the cable box away from RGB

First off confirm it is the cable box that is causing this. The simple way is to turn the box off or even better unplug the SCART lead. If the problem goes away then you need to select something other than RGB.

There will probably be a Settings or Installation menu on the cable box. In there should be a setting for the Video Output or similar wording. Basically look for anything that is saying RGB. Then switch it to Composite (or CVBS, PAL or plain Video depending on what it calls it).

You may have to change the settings on the TV as well. though it may auto detect the RGB signal has dissappeared and switch ro Composite.

If the cable box and TV both have the option select S-Video if available. S-Video is better than Composite but not as good as RGB. But it shouldn't give you the same problems as RGB seems to be doing.

If however the problem continues with the cable box unplugged then that is not the cause. In which case you may have a cream crackered telly.

unpuged v/box scart and tried it with my composite leads
and when i go to v/box menu and change it to rgb
i get a picture but its like i described before b/w colored bands

I'm confused by what you have done (and may have confused you into the bargin ). So to make it clear.

Unplug the V box SCART lead. Ignore the V Box completely from now on. Turn it off unplug it, throw it out the window (joke )

Switch on the TV and watch anything you like, analogue TV from the aerial your VCR, PS console anything. In fact try them all (though if the VCR is plugged via the V box that may be difficult)

Do you get the picture disturbance or is everything OK? If everything is OK then the V box is the source of the interference.

So plug it back in but set the V box to Composite (or whatever it calls it) NOT RGB as you have been doing. That is the vital bit you must not be using RGB on the V box for this part of the test.

Do you get any picture disturbance now on the aerial feed or the VCR or PS consoles? If you do not then you have cured the problem. Just stop using RGB on the V box.

If you are still getting picture disturbance then there is something else at play here.

i did all what you said but it also happens when
i use anything that uses composite leads
also when using my analogue camcorder ,arial , ps2
i think i might take your advice, the window seems a good idea , its just don,t understand how my v/box works fine
but that is using rgb scart lead

I take it this TV is set up for PAL-I? It seems that RGB (which isn't affected by the PAL/NTSC setting) is okay but as soon as an attempt to decode is used then it fails.

Is there anywhere in the menu for your TV that selects PAL/NTSC/SECAM?