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Trouble Shooting; Rx Trouble - LG C3380 Service Manual

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4. TROUBLE SHOOTING

4. TROUBLE SHOOTING

4.1 RX Trouble

Test Points
(3) Checking
Ant SW & Mobile SW
(4) Chec king
SAW Filt er Circuit
(2) Checking
VCTCXO Circuit
(1) Check ing
Regulator Circuit
FL500
SW500
X500
U505
U503
(5) Checking
RX IQ
Figure 4-1(a)
- 52 -
U501

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