Videokarma.org TV - Video - Vintage Television & Radio Forums

Videokarma.org TV - Video - Vintage Television & Radio Forums (http://www.videokarma.org/index.php)
-   Rectangular Screen Tube Televisions (http://www.videokarma.org/forumdisplay.php?f=45)
-   -   Align sound and picture fine tuning (http://www.videokarma.org/showthread.php?t=276644)

maxhifi 05-26-2024 08:41 AM

Align sound and picture fine tuning
 
Haven't worked on a TV in a while. One thing I can't seem to remember is how to adjust a TV so that the picture sharpness and lack of buzz in the audio peak at the same point of adjustment of the fine tuning control. Is this trivial or does it require a full alignment? Can't seem to find any reference to this adjustment in my TV books, maybe haven't looked hard enough.

Electronic M 05-26-2024 10:27 AM

It depends on the set. There were split carrier sound and inter-carrier sound sets. Split sound sets you fine tune for best audio and best picture should match that. Inter-carrier sets (sound splits after the video detector) you tune for best picture and sound should automatically be good.

On split-carrier sets if sound and picture don't line up you need to give the set a full alignment.... At least that's the "proper way". I've found if the video alignment is good enough to get a fairly perfect picture with a Philips PM5544 test pattern I can usually walk the sound alignment by ear to a state where the set works as good as you'd expect a new set to...All split sound sets are the old 21MHz IF and I don't have alignment gear for that frequency so the "proper way" isn't an option for me.

Inter-carrier sets you can align the sound as needed without touching anything else and it will be fine and proper.

maxhifi 05-26-2024 12:28 PM

1 Attachment(s)
Hey thanks for the excellent summary! Looks like mine is inter-carrier, here's a snippet of the schematic.


All times are GMT -5. The time now is 07:11 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.