Shigaclone (rc-ez51) dead - help!

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Hi.

I would appreciate some help and handholding hunting down the fault on this one. Last night I shorted something with my ring (one never learns 🙁) and after that almost everything is dead. Only the LCD and cd-door swich seems to work. It instantly gives 00 on the LCD. Holding the cd-door pressed it flashes -- and when released just 00 at once.
The motors are dead quiet - no movement or torque at all.
If I by hand turn the sled to activate the end switch and then press cd-door it continues to flash -- even after releasing the cd-door switch. Turning the wheel to get the sled outwards gives 00 when the end switch is released.
So that circuit seems to work as well.

How should I proceed to hunt this down? Maybe buy a replacement board if anyone have a spare? Then again it would be most educational to hunt it down with your help. And a good lesson for myself not to wear my wedding ring when doing electronics...

Regards
 
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The obvious would be that the SCH69XH is blown? The woltages to the motors are all about 3.7... But again it could be steering...

Resoldered everything... Same as before - crap.

Regards
 
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