Question about Panasonic CT-20G6 20" TV

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Which service manual setting controls horizontal size?

My horizontal width runs beyond both sides of the screen. I need to narrow it. I have the service manual and on p.20 under Cut-Off Adjustment I found the C6 adjustment for vertical size, but I can't find one to adjust horizontal size. If you have the service manual, can you tell me which one adjusts horizontal size? Thank you.

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You're discussing about the factory mode adjustments. The horizontal width adjustments will not be there. You have to adjust it by replacing certain capacitors at the horizontal output stage.

Posted on May 18, 2013

Testimonial: "Are you sure? Does your answer reflect having looked at the service manual? Why would the EXTENSIVE on-screen adjustments have vertical size control and not horizontal size control?"

  • 1 more comment 
  • George Machen May 18, 2013

    Are you sure? Does your answer reflect having looked at the service manual? Why would the EXTENSIVE on-screen adjustments have vertical size control and not horizontal size control?

  • The Knight
    The Knight May 18, 2013

    For vertical size control, you can adjust it by entering its factory mode. But there is no data set adjustment to horizontal width or linearity. You have to adjust it by replacing the capacitor [connected to collector of the horizontal output transistor to Ground]. I'm in this field of TV service and repair, since 40 years, and doing the same now too. Check this link too.http://electronicshelponline.blogspot.co...

  • George Machen May 18, 2013

    OK, so the on-screen factory mode doesn't have horizonatal adjustment. Rats! I'm just a normal human being, not a service technicion, so I'm not able to do anything with capacitors and haven't the slightest idea what a collector of the horizontal output transistor to Ground is. I couldn;t find my model TV in the electronicshelponline link, so I guess I'll have to buy another TV. Thanks anyway.

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Posted on Jan 02, 2017

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