Canon P-10 D help

[Sirous Nekooei]

Dear community, 

I am seeking help on a Canon p10 d calculator. 

The circuit board is corroded especially around the power switch. I couldn't figure out how to wire the copper tracks.

If you have schematic please share with me.

Also, a high quality photo of the main circuit board back side (not the keypad) would be great. 

Thanks,

Sirous 

[Francisco Vazquez]

Hello.
 I'm attaching photos of my calculator. 

If you need more photos please let me know.

Note: 
It has two cut wires, one red and one black, which appear to be the power to the display. 
If you have soldered those wires, could you please tell me where they go?