Retuning Als - Nokia RX-44 Service Manual

RX-44
BB Troubleshooting and Manual Tuning Guide
6. If component doesn't give any reading or reading doesn't change when sensor is/is not covered, replace
the part.
Note: After replacing the ALS. If calibration values of the new sensor are lost or for some other
reason, ALS re-tuning is required (see instructions later in this document).
When doing the ALS calibration procedure, it is required to have a reference phone, which includes
calibrated ALS. ALS re-tuning instructions show why the reference phone is needed.

Retuning ALS

Steps
1. Connect reference phone to
light seen by ALS is as stabile as possible.
Phoenix .
2. Start
3. Choose File→Scan Product.
Issue 1
Phoenix and set the phone (e.g. on the table) so that the amount of ambient
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