Nokia 1506, Руководство по обслуживанию

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RH-128
Service Software Instruction
CDMA TxAGC Closed Loop RF Power
CDMA TxAGC Closed Loop RF Power overview
The procedure for baseline, temperature adjustment and frequency channel adjustment is the same as
that for calibration of the dBm to PDM value tables as described in above Sections, except that the Tx
power detection ADC should be read using Aux ADC Get.
CDMA TxAGC Closed Loop RF Power Procedure.
A. Perform the procedure at “nominal” or room temperature.
B. The baseline RxAGC calibration must have already been completed.
C. The RxAGC frequency channel adjustment, and temperature adjustment tables must be zeroed.
D. Connect the antenna to CDMA test set.
E. Reset the UUT, start Debugtool, and do not press the Power key on the Virt MMI (i.e., PS should
be off and LID reset). Send the message CP Enable, with Disable option.
F. Set the measurement equipment to the frequency channel used for calibrating the TX AGC
G. Turn off the transmitter test using the Tx Rate Test with the rate set to Tr Full Rate.
H. Set the frequency channel to the channel used for calibrating the TX AGC using the PLL Channel
Config. CP PLL Channel Config Settings, Ctrl Mode: Manual ,Band: Band being calibrated , Channel:
Channel being calibrated. (see step F).
I. Turn on the transmitter test using the Tx Rate with the rate set to Tr Full Rate.
J. Set the Tx power by direct control of the dBm setting using DSPM TxAGC Config. Vary the HW Val
until the reported power is /-1 dB of the desired power level using DSPM Tx AGC Config. DSPM
Tx AGC Config Settings, Ctrl Mode: Manual, Method: dB Gain ,HW Val: N/A, Hyst State: N/A, Power
(dBm): Some starting value
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