Hey everyone, I need some help! I have a 27" monitor and a Wei-Ya 828HB chassis. The computer is a Sega Naomi with a NetDIMM board that boots roms from a Raspberry Pi.
The Naomi dips are set to 15kHz. There is a N/W jumper on the chassis that doesn't seem to do anything and a H Width pot on the control board that also doesn't seem to do anything. The pot that does control the width (labeled VR104 in linked schematic) is turned all the way down, its about in inch too wide on either side.
I made an album on imgur that I can add to.
http://imgur.com/a/Eh7u0
I read a similar post here where on a different model they figured out a solution by changing a capacitor. I'm not sure how they figured out which cap to change or what to change it too.
https://forums.arcade-museum.com/showthread.php?t=226198&highlight=wei
This is the ebay auction that I bought the board from.
http://www.ebay.com/itm/Universal-Replacement-Arcade-Monitor-chassis-25-27-29-CRT-/120966957215?hash=item1c2a31489f:m:m3FLQiCB1TWUiaWocPJ6S4Q
Please let me know if any additional information/pics are needed.
thanks!
-totino
The Naomi dips are set to 15kHz. There is a N/W jumper on the chassis that doesn't seem to do anything and a H Width pot on the control board that also doesn't seem to do anything. The pot that does control the width (labeled VR104 in linked schematic) is turned all the way down, its about in inch too wide on either side.
I made an album on imgur that I can add to.
http://imgur.com/a/Eh7u0
I read a similar post here where on a different model they figured out a solution by changing a capacitor. I'm not sure how they figured out which cap to change or what to change it too.
https://forums.arcade-museum.com/showthread.php?t=226198&highlight=wei
This is the ebay auction that I bought the board from.
http://www.ebay.com/itm/Universal-Replacement-Arcade-Monitor-chassis-25-27-29-CRT-/120966957215?hash=item1c2a31489f:m:m3FLQiCB1TWUiaWocPJ6S4Q
Please let me know if any additional information/pics are needed.
thanks!
-totino
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