🚀 go-pugleaf

In article <111500011@uxa.cso.uiuc.edu> mts10271@uxa.cso.uiuc.edu writes:
>
>My SC1224 also has a high pitched buzz (not just the usual one). Do they all
>do this (it is a Mega-styled one)?
>Is there a cure?
>
>
>
>                                             Mike Stepniczka
>                                             mts10271@uxa.cso.uiuc.edu


In article <111500011@uxa.cso.uiuc.edu> mts10271@uxa.cso.uiuc.edu writes:
>
>My SC1224 also has a high pitched buzz (not just the usual one). Do they all
>do this (it is a Mega-styled one)?
>Is there a cure?


	The high pitched buzz that many have been experiencing is most 
likely the High Voltage transformer (aka: Flyback). As the monitor is 
made by GoldStar, and I have run into this many times before, it is not 
too unlikely. 

	It also may be perhaps the power supply, as is I am not mistaken, 
they are utilizine a switching type power supply. At least thay do in the 
SC1224 (color) monitors.


	I have seen reference to turning off the mono monitor for it may 
case a breakdown. Perhaps, but I doubt it. The snap that was described 
sounded like the high voltage dropping then back up because the video
had disappeared for a moment.

	The pattern described sounds like what is known as Keystone, 
which usually indicates a bad yoke.


	In refernce to the fadded white Horiz line at first, that seem to 
disappear after the monitor warms, sounds like yuo are seeing retrace lines, 
which could indicate a CRT as being soft, or the screen driver being set too 
high. 



	I personally have both monitors, and since 1985 have yet to have a 
problem with either.


	rich.....
	UUCP: {uwvax}!uwmcsd1!lakesys!rich