MV-ELA-1 Whine/Buzz

[doaal]

My Big Red cabinet makes a whining/buzzing noise when powered on. I traced it back to the MV-ELA-1 board. I haven't yet replaced the marquee lights to see if the ELA is faulty, but I'd like to fix the sound. Would this be caused by the transformer, the transistor, the caps, etc?

 

[daskrabs]

It's the EL panels themselves. Swap them with the Glowhut A6 panels.

 

[doaal]

It's the EL panels themselves. Swap them with the Glowhut A6 panels.

That's what the Dev Wiki says, but it makes the sound even when the 10-pin cable running to the EL panels is disconnected. Same with the cable that runs to the MV4.

 

[ack]

Personally I would just replace it all with these http://www.neogeoledmarquee.info/

 

[doaal]

Personally I would just replace it all with these http://www.neogeoledmarquee.info/

Those do look good but they'd cost twice as much as buying four of the Glowhut panels and the couple bucks it'll cost for a replacement part for the ELA.