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bad screen geometry

Discussion in 'TVs' started by Roy B, Sep 8, 2001.

  1. Roy B

    Roy B
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    i have recently purchased + returned both a philips pw286515 and a sony kv28ls35 for having bad screen geometry.the philips set curvred inwards from the middle horizontally and the sony set the picture curved downwards a good half an inch from right to left at the top.i am now watching my dvds on a bush ws 6671 set which although not perfectly straight is much better than the other two supposedly good makes ive had.has anyone else had this problem + is it just pot luck on how the come from the factory.also can geometry be changed onceit has come from the factory.
     
  2. John Jennings

    John Jennings
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    Geometry can be fixed to an extent if you can get access to the TV service menus. These give access to geometry tweaks (pin cushion effect etc).

    These are usually accessed by a series of button presses from the remote. However, it can be best to let an engineer handle these as you can make the picture worse if you don't know what you're doing. At least write down the settings in the state they are before you start fiddling, so you can return them to default if things go wrong.

    There was a post here a while back which gave the service menu codes for the 28pw6515.

    It can be pot luck about what settings the tellies leave the factory in. They only usually get about 10 minutes per telly to set them up. Getting an engineer to spend an hour or so fiddling will give you better results.

    <br />Kind of worried you had probs with the 28pw6515 as I've got one on order at the moment. <img src="eek.gif" border="0"> The ones I looked at in showroom seemed to have decent geometry though, suggesting they can be OK.

    Did you notice the other problems that have been mentioned about this set? Apparently, when piccy changes from a black to a bright white image you get little black rectangles left on screen for half a second or so? I had a look at the showrooms but couldn't see it. Then again it may take a while before you notice it. Did you notice that?

    <br />Cheers,<br />John
     
  3. Roy B

    Roy B
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    hi john<br />didnt notice that problem with the small rectangles you mentioned.the picture quality was the business but what i did notice was that any vertical lines displayed ie doors windows etc were bent to to right at the top of the picture.the geometry was not good at all tho top and bottom bending towards each other(really noticeable with 2:35:1 dvd)and bottom left of screen bending downwards.my first widescreen tv was a cheapo wharfedale ctv 850 from tescos the picture shape was perfect ,dead straight i wish i had kept it now .nothing but grief with the other two.another thing with the 6515 was a clicking from the back of the set after about two hours of operation.
     

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