Keymat Backlight - Nokia NEM-4 Series Troubleshooting Instructions

CCS Technical Documentation

Keymat Backlight

If the keymat backlight is non-functional and the backlight driver voltage is generated
correctly, then there is either a problem with the connector or the UI module.
Note: that it is possible for an LED to be non-functional and for all other LEDs to still be
working.
Issue 1 09/2003
Company Confidential
Copyright  2003 Nokia Corporation
Company Confidential
NEM-4
BB Troubleshooting
Page 6(a)-43