User Guide

CCS Technical Documentation Troubleshooting - RF

RH-48

* The R, L, T, and B values at the end of the part names indicate the Right, Left, Top, and Bottom side

of the part respectively in Figures 8 and 9.

T8 C636L, C624T,

L609B, C612L,

C630B, L607B

VR2 2.7V dc Mixer, driver, and IF supply from

UEM

T9 C605R, C606R VAGC-Tx 0.2 to 1.8V dc Tx AGC Control Voltage from UPP.

0.2V = Max Gain

1.8V = Min Gain

T10 C658R, C600T VIO-Tx 1.8V dc Supply for Digital circuits from

UEM

T11 C805B, C810T,

C816R

VBAT 3.6V dc Battery Voltage

(Nominal Voltage 3.6V dc)

T12 C802L, C813L VPA 3.6V dc

(High Gain)

Main PA Supply Voltage from

PMIC. Lgain=0.8V,

Mgain=-1.25V, Hgain=Vbat

T13 C814R C814R 1.8V dc

(Enable)

PA Gate Voltage (Enable/Disable)

Disable=0V

Cell Transmitter Test Path

Test

Point

Part* Function

Typical Value/

Frequency

HP85024A

Typical Value

Frequency

Prod Probe

Comments