Nokia 6255 Description And Troubleshooting page 61

Nokia Customer Care
Main
Display
faults,
page 2
Does the Display
show an image?
YES
END
Issue 2 05/2005
Try changing
NO
display module.
Is it OK?
Measure VIO and
VFLASH1. Is it
Check LCD signals
LCDCSX, LCDCLK,
LCDDA, and XRES. Are
the signals OK? (Refer
to the display section.)
Change Display
©2005 Nokia Corporation
6255/6255i6256/6256i (RM-19)
Baseband Description and Troubleshooting
YES
NO
NO
Change UEM
OK?
NO
YES
Company Confidential
Retest
Change UPP
Page 61