Lights Troubleshooting - Nokia RM-849 Service Manual

Lights troubleshooting

Lights test
troubleshooting
Run lights test In
Diagnostic
Does the backlight
brightness change?
Fail
Check J2401 metal
surface
Pass
Replace Display
Pass
Does the Flash LED
turn on?
Fail
Visual check for Flash LED
PAD and contact spring,
Check whether there are
stain or deformation?
Pass
Replace Unibody
Pass
End
Page 3-42
Clean J2401 metal
Fail surface, remount
J2401
Fail Change PWB
Clean Flash LED
metal surface,
Fail
Rectify the spring
height
Fail Change PWB
Pass
COMPANY CONFIDENTIAL
Copyright © 2012 Nokia. All rights reserved.
RM-849; (Nokia Lumia 610)
BB Troubleshooting and Manual Tuning Guide
LCM Connector J2401
Flash LED
Flash Spring
Issue 1