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-   -   c 55 keypad on (https://forum.gsmhosting.com/vbb/f223/c-55-keypad-667667/)

Usman Arshad 01-18-2009 05:58
c 55 keypad on
 
brother i have siemens c55 when we mobile on its keypad and lcd lights on after few time its light off but keypad on
please solve my problam

dagos 01-18-2009 06:29
Quote:
Originally Posted by Usman Arshad (Post 4069628)
brother i have siemens c55 when we mobile on its keypad and lcd lights on after few time its light off but keypad on
please solve my problam
...is possible to be damaged C-MOS IC V222 (the second C-MOS transistor). Replace it.
Download C55 schematic diagram from http://www.shrak-mobile.com/eng/sm_siemens.html
dagos


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