Table of Contents
Advertisement
LCD BL
Press Any key
•VREG_5V check
•BL control BJT function check
Page 3-16
•U100 check
Figure 3 Backlight control table
COMPANY CONFIDENTIAL
Copyright © 2008 Nokia. All rights reserved.
BB Troublesh0oting and Manual Tuning Guide
Check VREG_5V Path
-VREG_5V(MC108)
-Check Hinge BTB contact
Check MQ102 pin2/5 signal
(refer to fig 1.)
-MR120 check
-Check Hinge BTB contact
-Hot bar soldering check
RH-109
Issue 1
Advertisement
Chapters
Table of Contents
Troubleshooting
