LG KG280 Service Manual - Page 46
TX Trouble
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4. TROUBLE SHOOTING 4.3 TX Trouble Checking Flow START HP8960 : Test mode 62 CH, 7 level setting (TCH) 62CH, -60dBm setting (BCCH) Spectrum analyzer setting Oscilloscope setting (1)Check VCTCXO (2)Check Mobile SW & FEM (3)Check PAM control signal (4)Check TX IQ Redownload SW or Do calibration again Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 47 - LGE Internal Use Only
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 47 -
4.3 TX Trouble
START
Redownload SW or
Do calibration again
HP8960 : Test mode
62 CH, 7 level setting (TCH)
62CH, -60dBm setting (BCCH)
Spectrum analyzer setting
Oscilloscope setting
(1)Check
VCTCXO
(3)Check
PAM control
signal
(4)Check
TX IQ
(2)Check
Mobile SW
& FEM
Checking Flow