LG MG180C Service Manual page 73

4. TROUBLE SHOOTING
4.14.4 Checking FEM & Mobile SW (1) (Rx pass continued)
Check S W500 Pin 1,2 wi th
no RF cabl e connected
Check S W500 Pin 1,2 wi th
RF cabl e connected
Check ANT_S W1, ANT_SW2 of FL500
ANT_SW1,ANT_SW2 = Low or
ANT_SW1=High & ANT_SW2=Low
Check RF Level FL500 Pin1,2
FEM & Mobile SW is OK.
Short ?
Yes
Open ?
Yes
Yes
-63dBm
Yes
No
Repl ace SW500
No
Repl ace SW500
Rx st andalone m ode is needed
No
Repl ace
the board
No
Repl ace
FL500
- 72 -
(Tabl e 2-1)