LG GS290 Service Manual page 69

10.ENGINEERING MODE
2.7. Select "MODEL".
2.8. Click "START" for RF calibration
2.9. RF Calibration finishes.
LGE Internal Use Only - 138 - Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2.10. Calibration data will be saved to the following folder.
Notices:
1. The state of Phone is " test mode " during the CALIBRATION.
2. Calibration program automatically changes either "normal mode" or "ptest mode".
3. RF Calibration steps as follow:
TX Channel compensation: EGSM->GSM850->DCS->PCS->EDGE EGSM->EDGE GSM850->EDGE DCS->EDGE PCS
RX Channel compensation: EGSM->GSM850->DCS->PCS
4. Phone Operation Mode
< Normal Mode > < Ptest Mode>
Copyright © 2010 LG Electronics. Inc. All right reserved. - 139 -
Only for training and service purposes
10.ENGINEERING MODE
LGE Internal Use Only