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Pages: 1 edcosta 15khz user Reged: 05/25/07 Posts: 178 Send PM Noise in monitor 15khz #277830 - 02/29/12 10:41 PM Reply my mame cabinet has a monitor Wei-ya 820h 19" and when it is in front-end, 800x600, it hears an acute noise, and when I load a game (eg. Moon Patrol, Final Fight, Double Dragon), the noise disappears. Does anybody know what it can be? my cab: ArcadeVGA monitor Wei-ya 820h 19" w/ isolation transformer crt Philips grog Reged: 09/06/11 Posts: 419 Send PM Re: Noise in monitor 15khz [Re: edcosta] #277842 - 03/01/12 12:38 AM Reply just to check, is the noise coming from the actual monitor itself, or through the audio speakers? little test: when u are in the frontend can u load the 'paint' program in windows and make (using paint fill feature or whatever) an all black screen image and see if the noise goes away? try an all white image also and see if there is a difference in noise... otherwise, if this has no effect, perhaps try using 640x480 resolution instead of 800x600 (if windows doesnt let u choose 640x480, use this program below to set your desktop to 640x480): http://www.softpedia.com/dyn-postdownload.php?p=37325&t=4&i=1 or a more 'basic' version if u prefer: http://files.arianchen.de/soft15khz/quickres.zip ps. here is a great forum for arcade/monitor/tv help: http://forum.arcadecontrols.com/index.php?board=4.0 italie MAME owes italie many thank yous, hah Reged: 09/20/03 Posts: 15244 Loc: BoomTown Send PM Re: Noise in monitor 15khz [Re: edcosta] #277865 - 03/01/12 03:56 AM Reply > my mame cabinet has a monitor Wei-ya 820h 19" and when it is in front-end, 800x600, > it hears an acute noise, and when I load a game (eg. Moon Patrol, Final Fight, Double > Dragon), the noise disappears. Does anybody know what it can be? > > my cab: > > ArcadeVGA > monitor Wei-ya 820h 19" w/ isolation transformer > crt Philips Some monitors don't like certain resolutions, try different ones. A cap kit may help if this is a recent change. Wei-ya aren't exactly the caddilac of chassis either, by they are decent enough. yaggy Coin-op fixer Reged: 01/23/05 Posts: 1162 Loc: Philadelphia Send PM Re: Noise in monitor 15khz [Re: italie] #277916 - 03/01/12 06:45 PM Reply > > Some monitors don't like certain resolutions, try different ones. A cap kit may help > if this is a recent change. > > Wei-ya aren't exactly the caddilac of chassis either, by they are decent enough. +1 - I would run my front end at 480x320 or something low that won't end up being interlaced. Just because the ArcadeVGA can force 800x600 doesn't mean it's a good idea. Also, ensure the metal frame is properly earthed (grounded) with a green wire. Check that this wire is connected and is tied into your A/C plug correctly. edcosta 15khz user Reged: 05/25/07 Posts: 178 Send PM Re: Noise in monitor 15khz [Re: grog] #277936 - 03/02/12 12:28 AM Reply > just to check, is the noise coming from the actual monitor itself, or through the > audio speakers? it is not speakers, I turned off them. > little test: when u are in the frontend can u load the 'paint' program in windows and > make (using paint fill feature or whatever) an all black screen image and see if the > noise goes away? try an all white image also and see if there is a difference in > noise... the same happens... I had me forgetful, the noise happens after a periodo, , be in front-end, be in any game, except Moon Patrol! very weird... grog Reged: 09/06/11 Posts: 419 Send PM Re: Noise in monitor 15khz [Re: edcosta] #277941 - 03/02/12 02:20 AM Reply > I had me forgetful, the noise happens after a periodo, , as italie mentioned, components themselves which are known to make noise are capacitors (if they are leaking) .. the suction cup on the back of the monitor glass (if loose/dirty/leaking), or the flyback transformer (if getting old/worn out) perhaps if possible, run the monitor and try to locate where (or what general area) of the monitor the noise is coming from (and look at the capacitors to see if any of them have leaked, or bulged/swelled)... note: if the noise happens after a 'periodo', most likely one of the parts is bad when it becomes hot... finally, perhaps ask your question at the forum below, which contains lots of friendly experts: http://www.ukvac.com/forum/forum_topics.asp?FID=2&title=tech-maintenance-repairs mogli MAME Fan Reged: 01/26/08 Posts: 1956 Send PM This..... [Re: yaggy] #277967 - 03/02/12 06:02 AM Reply > +1 - I would run my front end at 480x320 or something low that won't end up being > interlaced. Just because the ArcadeVGA can force 800x600 doesn't mean it's a good > idea. And: what kind of noise is it? Maybe you could take a video with your phone? Consider it high comedy....sincere tragedy....whatever...don't take it personally. The Culture krick Get Fuzzy Reged: 02/09/04 Posts: 4235 Send PM Re: Noise in monitor 15khz [Re: edcosta] #277969 - 03/02/12 06:08 AM Reply Maybe this?... http://www.arcaderestoration.com/index.asp?OPT=3&DATA=57&CBT=24 GroovyMAME support forum on BYOAC edcosta 15khz user Reged: 05/25/07 Posts: 178 Send PM Re: Noise in monitor 15khz - SOLVED! [Re: krick] #277979 - 03/02/12 03:14 PM Reply > Maybe this?... > > http://www.arcaderestoration.com/index.asp?OPT=3&DATA=57&CBT=24 it was that's it. with a toothpick solved the problem!... thanks to everybody who helped. italie MAME owes italie many thank yous, hah Reged: 09/20/03 Posts: 15244 Loc: BoomTown Send PM Re: Noise in monitor 15khz - SOLVED! [Re: edcosta] #278038 - 03/03/12 02:56 PM Reply > > Maybe this?... > > > > http://www.arcaderestoration.com/index.asp?OPT=3&DATA=57&CBT=24 > > it was that's it. with a toothpick solved the problem!... thanks to everybody who > helped. Now just pray it isn't arching... (Kind-of disappointed in Bob on this one. Effective fix, but hillbilly at best.) edcosta 15khz user Reged: 05/25/07 Posts: 178 Send PM Re: Noise in monitor 15khz - SOLVED! [Re: italie] #278040 - 03/03/12 04:19 PM Reply > Now just pray it isn't arching... yes, I am going to swap the flyback as soon as possible... Pages: 1

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