LG KE600 Service Manual - Page 109
Trouble Shooting of Transmitter Part
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5. Trouble shooting 5.15.7 Trouble Shooting of Transmitter Part Checking Flow Checking Points Setup Test Equipment Cell Power : -7 4dBm EGSM CH30 DCS CH699 FL601 U601 Check point X601 VCTCXO Check point U602 PLL Control Check point point TX I/Q Signal U602 Figure 17. RF Part Check point point Transceiver Output Check point PAM Control Signal Check SW601 FEM & Mobile S/W Re-Download S/W & RF CAL - 110 -
5.15.7 Trouble Shooting of Transmitter Part
5. Trouble shooting
- 110 -
Checking Flow
Checking Points
Check point
X601 VCTCXO
Check point
U602 PLL Control
Setup Test Equipment
Cell Power : -7 4dBm
EGSM
CH30
DCS CH699
Check point
point TX I/Q Signal
Re-Download S/W & RF CAL
Check point
point
Transceiver Output
Check point
PAM Control Signal
Check
SW601
FEM & Mobile S/W
FL601
U601
U602
Figure 17. RF Part