Display backlights troubleshooting
Context
The device has three LED drivers. One of the drivers provides current for the display backlights. The display
backlights can be turned ON (100% max.) and OFF (0%) with PWM.
The two other LED drivers provide current for the keyboard backlights. The keyboard backlights can be turned
ON/OFF separately.
RM-356
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –35
Copyright © 2008 Nokia. All rights reserved.
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