VoyForums
[ Show ]
Support VoyForums
[ Shrink ]
VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, 4, 5, 6, 7, 8, [9], 10 ]

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 14:47:16 01/17/02 Thu
Author: Potter
Subject: Re: Canton 3, Vibration in picture
In reply to: Sami 's message, "Canton 3, Vibration in picture" on 11:20:35 01/16/02 Wed

Sounds like the vcxo alright. The coarse locking code gives this effect if the centre frequency of the oscillator doesn't quite match the code timing. Two approaches are to try to shift the oscillator frequency up or down slightly (see earlier posts on this) or try adding/removing 1 cycle in the MAKEHLINE routine (tailend where it waits out the visible line)

>Just got new Canton 3 board ready. Last board was
>similar and worked perfectly, but this new board has
>problem.
>
>When watching any channel, there is a bad vibration in
>picture. Vibration is so bad that it gives a headache.
>
>What could cause this problem? Power-source is same
>than in old board, so it can't be problem. Maybe there
>is some component that is not good enough, but which
>is it? Is it VCXO?
>
>Any advice is more than welcome. Thank You.

[ Next Thread | Previous Thread | Next Message | Previous Message ]
[ Contact Forum Admin ]

Forum timezone: GMT-8
VF Version: 3.00b, ConfDB:
Before posting please read our privacy policy.
VoyForums(tm) is a Free Service from Voyager Info-Systems.
Copyright © 1998-2019 Voyager Info-Systems. All Rights Reserved.