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Main => Monitor/Video Forum => Topic started by: ckong on June 06, 2018, 09:09:27 am

Title: Horizontal width of a Philips TV with Anubis A chassis
Post by: ckong on June 06, 2018, 09:09:27 am
I have this Philips 21PT166A RGB TV which has an Anubis A chassis and I have been able so set vertical width, centering etc. but not horizontal width. I can't find a pot on the chassis that will do that and the service manual doesn't mention it either. Is there really no way to adjust horizontal width on an Anubis A chassis?
Title: Re: Horizontal width of a Philips TV with Anubis A chassis
Post by: Paradroid on June 06, 2018, 08:28:10 pm
Quote from: ckong on June 06, 2018, 09:09:27 am
Is there really no way to adjust horizontal width on an Anubis A chassis?

I recently RGB modified an Anubis-S AA. Picture is excellent but there are limited chassis controls. Definitely no width adjustment.

I'm using GroovyMAME so I just adjusted the monitor specs to set the width.(https://uploads.tapatalk-cdn.com/20180607/b5541233af297a47b2f5d1c16c5a064d.jpg)(https://uploads.tapatalk-cdn.com/20180607/fe94b330cbe3eb7baf77dad70c3ec528.jpg)(https://uploads.tapatalk-cdn.com/20180607/a2822ac5418b58f6034023cd927e27c3.jpg)(https://uploads.tapatalk-cdn.com/20180607/5835140913a90a4cdbf9230a3b8bf4c1.jpg)

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Title: Re: Horizontal width of a Philips TV with Anubis A chassis
Post by: princess prin prin on June 06, 2018, 09:17:08 pm
That's normal. There is no horizontal size adjustment available on most chassis for 90° tubes (14-21").
Title: Re: Horizontal width of a Philips TV with Anubis A chassis
Post by: ckong on June 09, 2018, 04:18:02 am
Quote from: Paradroid on June 06, 2018, 08:28:10 pm

I'm using GroovyMAME so I just adjusted the monitor specs to set the width.[IMG]https://uploads.tapatalk-cdn.com/20180607

That's a good idea, could you share your monitor specs (modeline I guess to use in VMM)?

BTW, I found a kind of workaround, adjusted the voltage pot a bit which decreased the horizontal width to match the screen. Doing this I also lost some vertical height, but not much. However, I think your method is the way to go.
Title: Re: Horizontal width of a Philips TV with Anubis A chassis
Post by: haynor666 on June 10, 2018, 06:11:49 am
My Thomson that I used long time ago also didn't have horizontal size control. Sadly I had to use custom modelines. After a while with Sony Trinitron I decides to fully switch to custom modelines and I'm happy now. Right now I have to control horizontal size and in some cases (games with 256 lines and 55Hz refresh rate) I have to use also v-slope option. Right now I'm working on such conditions to remove such option.