Dipro Technical Description And Troubleshooting; Dipro (Proximity Sensor And Als) Troubleshooting - Nokia RM-701 Service Manual

RM-701
BB Troubleshooting and Manual Tuning Guide
Figure 10 Magnetometer self test

DiPro technical description and troubleshooting

DiPro (proximity sensor and ALS) troubleshooting

DiPro Self Test verifies that the sensor can communicate with the host engine. The test does not verify that
the IR LED used with the proximity sensor is functional.
The component's logic circuitry is tested by reading the manufacturer ID from the sensor register. Interrupt
signal 'INT' is also tested by forcing it to change its state and checking it by the engine.
If the self test result is 'No response', the engine cannot communicate with the sensor. The magnetometer
and accelerometer share the same supply voltage and I2C bus with the DiPro. You can use both Magnetometer
Test and Accelerometer Test to rule out the possibility of a power supply failure (VAUX 2.8V) or an I2C bus
failure on the engine side.
If the self test result is 'Minor', a pop-up window will open and the error can be identified from Detailed
Result (see the following figure).
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