LG KB770 Service Manual page 95

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4. TROUBLE SHOOTING
Check TP1
G900/DCS/PCS Tx is OK.
If G900 over 31dBm?
Check the other part
If DCS/PCS over 28dBm?
Check TP2, TP3
If G900 over 29dBm?
If DCS/PCS over 25dBm?
Check PAM Block OK?
Refer to Chapter 4.7.2
G900/DCS/PCS Tx is OK.
[Fig 4.7.1.3] Check Flow of the GSM TX Block
LGE Internal Use Only
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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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