User Guide

CCS Technical Documentation Troubleshooting - Antennas

RH-27

connectors are shown in Figure 6.

CDMA RF input — connects to duplexer

CDMA RF output — connects to antenna pad through vias

GPS RF input — connects to GPS ceramic filter output

GPS RF output — connects to GPS antenna matching circuits

RF connector — connects to coaxial cable

If the RF input is not connected properly to the RF output, then the RF connector must

be replaced.

Display Assembly

Grounding of the display shield and frame

Figure 7: RH-27 display assembly (above, right) and side view of RH-27 display assembly (above, left)

The display shield is connected to the display frame plated area (screw boss area) and

then the the PWB through the two top screws. The grounding of the display shield and

frame will impact the radiation performance of the phone. If the screws are loose,

tighten them. If the screw bosses are stripped, the chassis will need to be replaced. If the

screws are missing, install new ones.

Grounded

osition

Display

shiel

Display

Frame

isplay Frame

lated area