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Maintenance Principle (Transmission) - Huawei P20 Maintenance Manual

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4.16.2 Maintenance Principle (Transmission)

Signal flow in the CDMA transmission circuit: U3301 (RFIC) → U3401 (PA) → U3702 (DPDT) → Z3701
(diplexer) → J3703 (switch holder)
2019-6-25
EML-L29V100R001 Advanced Maintenance Manual V2.1
Huawei Confidential
INTERNAL
Page 52 of 67

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