User Guide

2115i/2116/2116i (RH-66)
Baseband Description and Troubleshooting
Page 48 ©2005 Nokia Corporation Company Confidential Issue 1 03/2005
Display
Faults
Page 2
Does the display
start?
Change the display
module. Does it
work?
Retest
Measure VIO and
Flash1.
Check LCD signals
LCDCSX (pin5),
LCDCLK (pin4),
LCDSDA (pin3), and
LCDRESX (pin2) at
X302. Are the
signals OK?
Change UPP
Change DisplayEND
YES
NO YES
NO
NO
YES
Change UEM
NO