Asus A502CG TROUBLESHOOTING GUIDE

A502CG

RF Trouble Shooting Guide

V1.0

A502CG

RF Trouble Shooting Guide

• Repair and Test Environment

• RF Block Diagram

• Key components location

• RF Tx /Rx Path

– GSM and WCDMA Tx Path
– GSM and WCDMA Rx Path

Outline

• Repair and Test Environment

• RF Block Diagram

• Key components location

• RF Tx /Rx Path

– GSM and WCDMA Tx Path
– GSM and WCDMA Rx Path

• GSM and WCDMA Tx/Rx fail analysis

• GPS RF Path

• BT/WiFi RF Path

• GPS and BT/WiFi fail analysis

(*)

Repair and Test Environment

(*)

DUT

Communication Test Box

Phone

RF Block Diagram ─ 2G/3G System

RF Key component
(BOT)

TCXO (OSC6401)

Transceiver (RFU6401)

TCXO (OSC6401)

Transceiver (RFU6401)

ASM (RFU6301)

PA (RFU6501)

DC-DC (RFU6508)