Akai S1000 / S1100 samplers

I think my inverter has seen its day. I haven't had the s1100 for very long, but when i got it, the backlight was dead and the inverter was super loud. I promptly replaced the backlight and the inverter quieted down to a gentle hum. It has been less than a week since i've replaced the backlight and it already seems less dim, but worse, the inverter it starting to get obnoxiously loud again especially after the unit is powered on for more than 10 minutes. I figure this is the inverters fault. If you guys agree with my diagnosis:

1) has anybody had success installing an electronic inverter? (this exact model was linked to in another topic)

http://www.backlight4you.com/product_info.php/info/p915_3-Volt-Inverter-for-EL-Panels-up-to-60cm2-area.html

2) what about this one? would it work?

http://www.backlight4you.com/product_info.php/info/p777_5-Volt-Inverter-for-EL-Panels-up-to-105cm2-area.html