Interesting Vasile, but I'm puzzled. How does digit 1 turn on for the CA type display if that line is at high=20 impedance according to your table? When you say pins 9 - 16 should be connected together, did you mean pin=20 pairs - [10-9] [8-7] [6-5] etc or really all anodes and cathodes shorted to= =20 each other? Colin=20 -- cdb, colin@btech-online.co.uk on 8/09/2012 =20 Web presence: www.btech-online.co.uk =20 =20 Hosted by: www.justhost.com.au =20 =20 This email is to be considered private if addressed to a named individual= =20 or Personnel Department, and public if addressed to a blog, forum or news= =20 article. =20 =20 =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .