Receiver Trouble - LG gd350 Service Manual

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4.11 Receiver Trouble

CHECKING FLOW
SETTING : After initialize Agilent 8960, Test EGSM900, DCS mode ( or GSM850, PCS mode )
Set the property of audio as PRBS or continuous wave. Set the receiving volume of mobile as Max.
START
Does waveform at
C223 and C225
Fluctuate?
YES
Does waveform at
FB200 and FB201
Fluctuate?
Yes
Is receiver connected
Properly?
YES
Receiver will work
properly.
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
NO
Change the U100
No
Replace/Change the U202
NO
Resolder/Change the
receiver
95/140
- 95 -
4. TROUBLE SHOOTING
4. TROUBLE SHOOTING
LGE Internal Use Only

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