I mashed the buttons and now my L200P doesn't work!

Hi guys,

I recently bought a second-hand ThinkVision L200P. I installed it behind a large sheet of glass, which seems to have had the unfortunate effect of pressing all the buttons at once for an extended period of time, and now my L200P doesn't display an image.

I opened up the L200P case (it's second hand) and took out the little 'button bar' PCB to make sure none of them were stuck in. By pressing the little switches on the PCB, I see the following behaviour:

1. Upon pressing the power button, I see the 'IBM Thinkpad' splashscreen for a moment, then it disappears. I think it used to then say 'Power Saving mode' but it doesn't anymore.
2. Upon presssing and holding the menu button for 10 seconds, I get the message 'Menu Locked'. If I press and hold for a further 10 seconds, I get 'Menu Unlocked'. The text is clear and bright green
3. None of the other buttons appear to do anything, even after pressing them many times and holding them for long periods
4. Powering on while holding 'left' and 'right' arrows does nothing
5. Holding 'right' arrow without any connectors in does nothing
6. My hunch is that mashing the buttons has somehow, say, turned down the brightness and contrast and locked the menu or something. But I don't know how to undo it.

What should be my next step? Like I said I've opened the case, so I'd be happy to 'hard reset' the unit by shorting a jumper or something.

Regards,

Richard.