Proximity Sensor Troubleshooting; Als Technical Description And Troubleshooting; Ambient Light Sensor (Als) - Nokia RM-596 Service Manual

• Rotate the platform manually one round on the horizontal table with steps of approximately 15° degrees
• The reference angle direction value from the reference compass = REF(angle)
• Read the phone value = ACT(angle)
• Calculate for every step (24 steps)
• Result(angle) = REF(angle) - ACT(angle)
• The result is the real angle difference of angles in a 360° degrees continuous round
• Criteria:
• If the Result(angle) value < 15° degrees GO, otherwise NOGO

Proximity sensor troubleshooting

Troubleshooting flow

ALS technical description and troubleshooting

Ambient Light Sensor (ALS)

Pupumon V1100 is a digital Ambient Light Sensor (ALS) which is connected to RAPU via I2C_2 bus. It does not
have an interrupt signal as in Augumon ALS. Power supply voltage is provided from VAUX2 output of EM ASIC.
ALS is used in backlight control system to measure the amount of ambient light reaching display surface so
that it is possible to adjust the display (and keypad) brightness in order to achieve good user experience.
This also helps in saving power.
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BB Troubleshooting and Manual Tuning Guide
RM-596
Issue 2