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DOS疑难解答 & 问题讨论（解答室） » Entering DOS immediately burned out the monitor?

Floor1　zxas	Posted 2003-05-29 00:00
初级用户　Posts 16　Credits 158
A few days ago, my monitor broke. After I took it in and had it repaired (the flyback transformer was replaced), everything was normal when entering the WIN98 system. But when I clicked the UCDOS shortcut on the desktop and wanted to enter the DOS system, the screen just went black, and then there was no response at all, and the monitor's power light didn't even come on. What exactly is going on here? Please give me some pointers, experts. Thanks! My monitor is an LG, 15-inch.

Floor2　如是大师	Posted 2003-05-29 00:00
元老会员　Posts 3,351　Credits 9,654　From 湖北
Then, can you still get into win98?

Floor3　zxas	Posted 2003-05-29 00:00
初级用户　Posts 16　Credits 158
The monitor broke, everything else is fine. (I bought another monitor, and everything is normal.)

Floor4　zxas	Posted 2003-05-29 00:00
初级用户　Posts 16　Credits 158
Looks like I can't find the reason the monitor broke here, I should go look on some hardware-related forums.

Floor5　minisheep	Posted 2003-05-29 00:00
高级用户　Posts 233　Credits 830
In theory software won't damage hardware! Maybe it was a restart! Going from 98 to UCDOS requires a restart, maybe at that moment the instantaneous voltage was too high! And that damaged the monitor! What a coincidence

Floor6　Dark-Destroy	Posted 2003-05-29 00:00
元老会员　Posts 3,551　Credits 8,312
Possible, when switching to full screen the monitor is under the heaviest load

Floor7　wglwx	Posted 2003-05-30 00:00
高级用户　Posts 187　Credits 616
The reason the monitor broke also lies in a quality problem with the monitor itself. It may be that the replacement flyback transformer didn't match the monitor (substitutes are commonly used by repair shops). It could also be some other reason. When the flyback transformer and the monitor don't match, although it can still light up, when the oscillation frequency changes, (such as from WIN98 to DOS) it is very easy for it to be damaged. If it doesn't break this time, it'll break next time; it has nothing to do with your main unit.

Floor8　Error	Posted 2003-06-07 00:00
初级用户　Posts 86　Credits 344　From 广东
But as for me, I really have never heard of this kind of situation.