Can someone help me adjust the geometry on my CTC-186/7 ?

[Duane]

It's hard to believe that a 2 year old set would have cap problems,but then who knows with these Sony sets.Which 34" set do you have?

There are several adjustments that are available in the service mode of your Sony. Some of the these have to do with overal sizing of the picture,others deal with bow and pincushion,linearity and so on. Two of the easiest parameters that could help you are VSIZ and HSIZ.

You might want to invest in a service manual for your set. It will have all of the parameters and their original values plus how to access the service mode.

One good thing to have before you do anything is to buy,borrow a test disc with test patterns that are used specifically for geometry. Video Essentials is a good one to use.The crosshatch is the one to use.

There's a caution about entering the service mode. You can cause some major problems with your set if you start changing things without knowlege of what it is you're changing.