User Guide

After Sales
Technical Documentation
TESLA Service Software User Guide
THA–4S
Page 25
Original, 12/95
Deviation Alignment
A number of deviation tunings are grouped together in this command.
They are, however, still tuned independently of each other.
Tuning Procedure
1.Select Tuning / Deviation
2.Select Sig Tone to move cursor and show the relevant
on–screen information for that particular tuning parameter
3.Use the Coarse and Fine commands until the target value is
reached
4.Repeat for Nominal and Maximum Deviation tunings
5.Enter the new value to EEPROM by selecting Store and Exit.
ADC Alignment
With this tuning, the Battery Reference value and Reference Charge
voltage value are both set using an accurate 6V power supply, provided
by Service Interface Box JTS–1. These tunings should not be attempted
while the phone covers are removed, as the voltage used to power the
phone is too inaccurate when not using the Dummy Battery Pack, BTS–6.
Tuning Procedure
1.Select Tuning / ADC Calibration
2.For VBATSW, the program displays the EEPROM value
expected and the 6V A / D reading actually present on the
VBAT line. It compares the two and the difference is the value
stored to EEPROM.
3.For CHRGMON the program reads the EEPROM value
expected and the 6V A / D reading actually present on the VC
line. It compares the two and the difference is the value stored
to EEPROM.
4.Enter the new value to EEPROM by selecting Store and Exit.