The value of the control might be marked on the board too so you could use that as a guide.
Sent from my iPhone > On Oct 29, 2022, at 13:15, Wayne S <wayne.su...@hotmail.com> wrote: > > One thought is that the brightness control might be heating up and changing > value. You can check the controls easily with a ohm meter. Check ohms across > the control when cold, disconnect ohm meter and plug in the machine until it > goes white. Then disconnect and measure across the control again. > > Sent from my iPhone > >> On Oct 29, 2022, at 13:05, Cameron Kaiser via cctalk <cctalk@classiccmp.org> >> wrote: >> >> >>> >>> Is there any kind of brightness control? Does it work at all when the >>> screen goes white? >> >> There are brightness and contrast controls, but they don't seem to do >> anything >> even when the screen is working properly. (Note that this could simply be an >> issue with the physical controls themselves rather than the display >> controller.) Likewise, when the screen goes white, turning down the >> brightness >> (or upping the contrast) does nothing; the screen remains blank bright white. >> The CCFL backlight is unchanged and fully illuminated. >> >> -- >> ------------------------------------ personal: http://www.cameronkaiser.com/ >> -- >> Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com >> -- I thought his Markov chain needed oiling. -- Mark J. Blair >> ----------------- >>
