LG LG-V909DW - Page 64

4. TROUBLE SHOOTING
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4.3.1 Checking RF Block
The overall flow is as following.
Chart 1 RF Block checking sequence
StartG
MDM PWR N – Low
Batter
y
Power Oka
y
?
MDME
,
MSMC oka
y
?
32.768K Clock oka
y
?
19.2M Clock oka
y
?
SIM DET oka
y
?
Is Phone
information okay?
Charge the Battery
Refer to previous page.
Change 32.768 KHz XO
Change 19.2 MHz XO
Check SIM Card
Replace another SIM card to the
p
hone
Update Modem F/W
Check the CP Board
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Antenna Bar Oka
y
?
Check RF Block
No
Yes