Ericsson A2618s - BDATA-Calibration

Trouble Shooting Guide, Advanced
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 Ericsson Mobile Communications AB
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5 BDATA-Calibration
BDATA calibrates in EFRA.
The purpose is to check the function and connection of the BDATA signal and calibrate
current generator for BDATA.
The calibration assumes that there is a 100 kOhms resistor is mounted between BDATA and
GND at the fixture.
Start the phone in EFRA with the test program.
Go to Logic\BDATA Calibration.
A window will appear,
and if the calibration was successful it will look like the one below Fig. 5.1.
Fig. 5.1
The limits for the calibration are shown in the table below Fig. 5.2.
min. max Unit
A/D BData 6E AA hex
Fig. 5.2
If the calibration failed it is probably due to N700.