Ambient Light Sensor Troubleshooting; Introduction To Als Troubleshooting; Gps Troubleshooting; Gps Antenna - Nokia RM-506 Service Manual

RM-505; RM-506
BB Troubleshooting and Manual Tuning Guide

Ambient Light Sensor troubleshooting

Introduction to ALS troubleshooting

If the Ambient Light Sensor (ALS) functionality is inoperative, check the ambient light sensor (N6502) and
change it, if necessary. Also, check the capacitor C6504 (100n).
The ALS components are located at the top of the UI flex as illustrated in the figure below.

GPS troubleshooting

GPS antenna

The GPS antenna is located on the back side of the B-cover (left-hand side, next to the camera). The GPS
antenna contacts the GPS antenna pad (connected to the ground) on PWB through the poco pin (in the B-
cover, above the camera).
Issue 1
Figure 22 ALS placement
Figure 23 GPS antenna
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