Arduino Forum

Topics => Device Hacking => Topic started by: fortueni on Mar 22, 2011, 06:50 pm

Title: HELP !! 23 BUTTON (12 PIN) pcb
Post by: fortueni on Mar 22, 2011, 06:50 pm
I OPENED AN OLD TELEPHONE I HAD IN MY HOUSE

im a total beginner in Electronics & Arduino...
but I opened that old telephone and retrieved a 23 button pcb with 12 pin....
following its circuits, I noticed it was connected to a Winbond chip (didnt find any schematics)
supposedly to handle numbers, on hold and wait buttons for the telephone....

is there any way I can repurpose this 23 numbers pcb without the winbond chip?

with only 12 pins ????
please help meee :D
Title: Re: HELP !! 23 BUTTON (12 PIN) pcb
Post by: GaryP on Mar 23, 2011, 09:12 am
Pictures, and you forget to add the circuit...?

Cheers,
Kari