Calibration Environment; Calibration Procedure - LG TU750 Service Manual

10. CALIBRATION

10.3 Calibration Environment

Ensure that the following conditions are maintained throughout the duration
of the tests and calibrations described within this document.
Parameter
Temperature
Relative
Humidity
Vbatt
Supply current
Table 10-1. Nominal Environmental Test Conditions

10.4 Calibration Procedure

10.4.1 GSM Calibration
- Tx Calibration : VCO
- Rx Calibration : RSSI and AGC
10.4.2 WCDMA Calibration
- Tx Calibration : Input Output Power Check
- Rx Calibration : RX AGC Dynamics And RSSI Table
10.4.3 CF360 Calibration Step
- EGSM PCS DCS GSM850 WCDMA1900 WCDMA850
10.4.5 Calibration Channel and Frequency
EGSM
PCS
DCS
GSM850
WCDMA1900
WCDMA850
LGE Internal Use Only
Min Typical
15 25
20 40
3 3 .8 4.0
0
XO AM Offset
Compensation
Channel 975
Frequency 880.2Mhz
Target Power 32.0
Channel 512
Frequency 1850.2Mhz
Target Power 29.5
Channel 512
Frequency 1710.2Mhz
Target Power 29.5
Channel 128
Frequency 824.2Mhz
Target Power 32.0
Channel 9262
Frequency 1852.4Mhz
Target Power 23.0
Channel 4132
Frequency 826.4Mhz
Target Power 22.5
- 206 -
Max Unit
30
75 %
4.2 V
3 A
Power & Pre-distortion
TX Output Power
RX RSSI Freq
38
897.6Mhz 914.8Mhz
32.0 32.0
661
1880.0Mhz 1909.8Mhz
29.5 29.5
699
1747.6Mhz 1784.8Mhz
29.5 29.5
189
836.4Mhz 848.8Mhz
32.0 32.0
9400 9538
1880.0Mhz 1907.6Mhz
23.0 23.0
4183 4233
836.6Mhz 846.6Mhz
22.5 22.5
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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