Nokia 9000i Service Manual page 183

After Sales
Technical Documentation
If the power tuning function is ended and EEPROM values are not
received or an EEPROM fault is noticed, an error message is shown.
Error message asks to initialize the phone and if initialization is performed
successfully the program is restarted.
If this kind of error situation appears restart program, check connections
and retune.
If the TX Power Tuning is ended and power coefficients are acceptable,
Key
Y
N
Esc
other key
When all power co–efficients have values that don't cause any error
messages, exit can be selected. The latest tuning power is in use after
exit.
When values are saved to EEPROM, GSM levels 0...5 are set to same
value as level 5.
The next automatic selection is made when this tuning function is ended:
– Active Unit = RX
3.2.3 – TX I/Q Tuning
This function is used for tuning TX I and Q branch DC offset, amplitude
difference and phase difference.
The function asks the same questions about values (from EEPROM or
PC) as power tuning.
The following automatic selections are made when this function is
activated:
– Active Unit = TX
– Operation Mode = Burst
– TX Power Level = 10 (GSM)
– If TX Data Type= RANDOM => TX Data Type= 1
– Channel = 60 (GSM)
Amendment 1 04/97
Response
The coefficients are written to EEPROM and tuning is
ended
The tuning is ended without EEPROM writing but
the tuned coefficient values are used when RF
controls are used
The tuning is continued
–
RAE/RAK–1N
Service Software
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