[sdiy] Name this part (Or: got a MPC3000 service manual?)

[Dave Manley]

WAG: dc-ac inverter to power the backlight.  Some require high voltage which
would explain why it is on the power supply board.

-Dave
> I've finally got the time this weekend to get my MPC3000 opened up and
> get a good look inside to find out why it died back in July.  I've
> checked out the PSU and all the voltages look fine, +-12v, 5v, 9v are
> all there.  It seems now to be a problem with the power supply that
> feeds the LCD screen, which no longer turns on at all which isn't a
> suprise given that there is no voltage being fed to it.  However, the
> setup for feeding the LCD is not so simple, the 5v comes off the PSU
> onto the PCB with the MCU's and MIDI interface on it and is then sent
> off along with -12v to the contrast control before returning to the
> PSU board where it appears that there is a big honkin' regulator there
> before it finally gets fed back to the LCD.  This doesn't make a whole
> lot of sense to me, but that is what I see.  Can someone tell me if
> this thing is in fact a regulator?  It's got 3 pins, wired up like a
> input/common/output and it's got 5v being fed to it, nothing coming
> out.
>
> http://i136.photobucket.com/albums/q187/smeffasystems/MPC020.jpg
>
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