Rf Tx Pass Trouble Shooting - LG MG180C Service Manual

4.15 RF Tx pass Trouble Shooting

START
E5515C : Test M ode
CH190, 7 level setti ng (TCH)
CH190, -60 dBm setti ng (BCCH)
Spectrum Anal yzer setti ng
Osci lloscope setti ng
Check
Regulat or C ircuit
Check
VCTCXO Circuit
Check
PLL Cont rol
Signal
Check
Tx I/Q
Check
PAM Cont rol
Signal
Check
FEM &
Mobile SW
Re-download SW & Cal
- 75 -
4. TROUBLE SHOOTING