gozar Posted January 30, 2016 Share Posted January 30, 2016 I dug my SM124 out of storage, and the screen size has shrunk to where it seems like it's only using 50% of the total screen. Is it worth fixing? Is it possible to fix? Quote Link to comment Share on other sites More sharing options...
calimero Posted January 30, 2016 Share Posted January 30, 2016 You can open monitor and adjust screen size by rotating knobs for screen size. I do this many decades ago so I forgot what knobs exactly...! But it is a life threatening procedure! since you need to do it with monitor turned on...! Quote Link to comment Share on other sites More sharing options...
ataricrypt Posted January 31, 2016 Share Posted January 31, 2016 Yeah Calimero is right. Sometimes it just ain't worth the risk... find a cheap VGA and use that instead? Quote Link to comment Share on other sites More sharing options...
Zogging Hell Posted February 1, 2016 Share Posted February 1, 2016 You could just turn the pots with the monitor off (after it has been left off for a while - better to turn off by the plug rather than the button as well). Then turn the monitor on to see the result - make notes on where the pots were originally. You will also probably want to diischarge the anode ( http://www.wikihow.com/Discharge-a-CRT-Monitor) It is a lot more time consuming guess work involved but some experimenting should allow you to work out which way to turn and by how much. Even though it is off the monitor still holds a charge though (particularly if it has just been turned on), although the bits people usually think are dangerous aren't necessarily the most dangerous parts, there are other bits in there that can also give you a shock (PSU etc). Do wear rubber soles, and only use one hand (preferably rubber gloves as well). And if that scares you, don't try it Just remember, however, that the screen size on the SM124 is always looks strangely shrunk - the same border visible on the ST on a TV is also present on the SM124 (for some reason known only to Atari, although I think it relates to aspect ratio /dpi), so it does look a bit odd now. Also, although you can, I wouldn't extend it to the full size screen as this puts extra stress on some parts of the internals, which will lead to an early death. 1 Quote Link to comment Share on other sites More sharing options...
galax Posted February 1, 2016 Share Posted February 1, 2016 I would also use long non-metal screwdrivers if possible. The pros use something like below but the pots are quite easy to turn, last time did this I improvised something out of a sharpened bamboo skewer. Quote Link to comment Share on other sites More sharing options...
gozar Posted February 1, 2016 Author Share Posted February 1, 2016 I'm afraid of putting more stress on the monitor. I did order a mono cable from eBay that should work. Quote Link to comment Share on other sites More sharing options...
ParanoidLittleMan Posted February 2, 2016 Share Posted February 2, 2016 In most of cases it is because weakened electrolyth capacitors - especially in this age and after longer storage. Quote Link to comment Share on other sites More sharing options...
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