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Old 19th Nov 2020, 9:55 am   #3
GreasedMonkey's Avatar
Join Date: Feb 2019
Location: Worcester, Worcestershire, UK.
Posts: 115
Default Re: GEC Junior Fineline - yet another fault.

Originally Posted by murphyv310 View Post
You should set the control midway between going out of lock. As you increase the brightness and contrast the load increases on the line stage which is reflected back to the power supply which can alter line frequency.
All quite normal.
Cant say I have noticed before, but this makes sense. Maybe I have an issue with poor regulation of the supply then, as this seems excessive. I can go from out of lock one way, right through to out of lock the other way just by varying the brightness. This is definitely new as I do tend to alter the brightness often depending on ambient light in the room.
Certainly the Wavy picture is a new thing.
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