LG MG200 Service Manual page 91

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4. TROUBLE SHOOTING
Checking Mobils S/W & FEM circuits
- See RX Part "Check Mobile S/W & FEM circuit"
Check Pin 1, 2 of
SW601 with
RF Cable : Open?
Yes
GSM850?
VC1 : High
VC2 : Low
VC3 : Low
Yes
Check RF Level of FEM
Output FL601
Yes
GSM850 : -33dBm
PCS : -30dBm
Yes
FEM is OK.
Redownload the Phone
software
- 90 -
No
Replace SW601
PCS?
No
VC1 : Low
VC2 : High
VC3 : High
No
Change FL601

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