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CCS Technical Documentation Troubleshooting - RF (Part 1)

RH-27

RF Troubleshooting

The RH-27 is based on Apollo Engine with dual band, tri-mode operation. The handsets

are based on GSM Wolfgang/Jacqueline mechanics with a common engine.

RH-27 features 1900MHz PCS CDMA, 800MHz Cell CDMA and AMPS, an internal

antenna, GPS, FM radio, RUIM card, and a color LCD, and a VGA camera.

Figure 1: RH-27 RF components

Figure 2: RH-27 Baseband components

Cell Isolator

RF connector

GPS connector

Cell Duplexer

Diplexer

Cell TX PA

GPS LNA & Filter

PCS TX PA

Robin TX Up- converter

Cell TX SAW Filter

Cell TX Driver “Tomcat”

PCS Isolator

PCS TX split-band SAW Filter

PCS TX Driver “Hornet”PCS TX switch

RX IC “Alfred“

PCS RX RF SAW Filter

Cell RX RF SAW Filter

VCO

RX IF AMPS Filter

RX IF CDMA Filter

PLL IC

Batman RX Down- converter

FM Radio IC

SIM Card

PCS Duplexer