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NeoGeo mvs-4-25 (WG K7000 compatible chassis?) w/ color separation, size issue
lilshawn:
the more I look at this, the more it reminds me of a Kortek monitor. maybe a Kortek KTW-N-26? It's hard to piece together with all the extreme closeups and parts here and there.
if so... this is the kit for it...
https://www.arcadepartsandrepair.com/store/monitors/monitor-cap-kits/kortek-ktw-n-26-monitor-cap-kit-105c-nichicon/
Sememmon:
Apologies for the poor quality pictures, but I was trying to be careful about what I was touching and haven't yet removed it from the cabinet. That said, that does look a lot like the chassis I have! Strange that the ICs would be the same as in that Sharp Image one. It looks pretty similar, too.
Thanks for the identification help. I appreciate it!
On a side note... the cooling fan... Any thoughts where I could find a replacement? Mine is in need of retirement. It looks pretty standard. Wondering if I could find a nice Noctua that I could replace it with.
Hm, and another question. Would a cap kit help the high pitched whine my cabinet emits?
lilshawn:
--- Quote from: Sememmon on June 09, 2019, 01:43:10 am ---On a side note... the cooling fan... Any thoughts where I could find a replacement? Mine is in need of retirement. It looks pretty standard. Wondering if I could find a nice Noctua that I could replace it with.
--- End quote ---
Pull off the fan and take a look. as long as it says it's 12 volts, you can replace it with any standard computer fan. cut it off, take it with you and match it up with a new one. it looks about an 80mm. if you measure between the screw holes...
32mm between screw holes 40mm fan size
40mm between screw holes 50mm fan size
50mm between screw holes 60mm fan size
60mm between screw holes 70mm fan size
72mm between screw holes 80mm fan size
83mm between screw holes 92mm fan size
105mm between screw holes 120mm fan size
--- Quote from: Sememmon on June 09, 2019, 01:43:10 am ---Hm, and another question. Would a cap kit help the high pitched whine my cabinet emits?
--- End quote ---
nope not in the slightest. that whine you hear is because it's refresh frequency (15 khz) is within the range of human hearing. (typically 20hz to 20 khz) once you get to medium resolution (25 khz) and VGA (31 khz), you fall outside of hearing range and you don't hear it.
once you have it in a cabinet and have to all buttoned up, you will hardly notice it.
Sememmon:
Awesome, thank you so much for the info!
Will get that cap kit in and report back on my results. Thanks! :cheers:
lilshawn:
no problem. Once you start doing the cap kit i recommend taking one capacitor out and switching it with it's replacement... one at at time... taking careful note of it's orientation... noting which way the polarity the capacitor is installed. that way you don't miss any and get them in the right way. all the circuit boards are marked for polarity printed right in the area where it installs... but it's known that a couple chassis have some markings for the capacitors polarity erroneously backwards... the capacitor is installed currently correct (otherwise it would blow up.) it's best to note how it's installed and replace it the same direction, ignoring the markings just in case of manufacturer error.