for Motorola

http://www.shrak-mobile.com/eng/schem_motorola.html

for Samsung

http://www.shrak-mobile.com/eng/sm_samsung.html

for Sonyericsson

http://www.shrak-mobile.com/eng/schem_se.html

for Nokia

http://www.shrak-mobile.com/eng/schem_nokia.html

Shematics for mobile phones