Well jogie,
If the credit card solution doesn't match, you can go to this below solution too:
Shock is is like the lottery...
1st step :You will need to open it and check all connections, if one was not unplugged.
So this step is the most quickest.
You have several boads Inside. So check each connector one by one : unplug it and plug it again.
¨Please take care with the ribbon one, the connector plugs are quite tricky and requires some technic to unlock/lock for plug/unplug the flexible PCB ribbon.
2nd step is more delicate as you will need to check each board with a magnifying glass to check if one component was not unweld and pcb wired/solder broken due to the shock.
Check specially the transformer on the first board.
If nothing was found after all of the previous steps , then the broken connection will probably be under some controller; here you cannot do anything as all components are CMS and we canot have access under components welds.
If you not feel free with the above, maybe you have an electronics friend who can do this for you?
Hope you will be lucky and find the failure .
