Philips CT6558 Tuning Up Procedure & Operational Manual page 7

PHILIPS
Tuning Up procedure & Operational Manual
RF CONN RF_SW
1.CT6558 downlink signal flow from Antenna to RF-Connector：
RF-Connector
The aerial signal mobile phone received go from antenna to RF Connector。 RF Connector, which is a
special parts developed for RF test. By connecting U501 and RF cable to spectrum analyzer, you can
measure the signal.
2. Signal output from RF Connector will be input to RF_SW。Tranceiver control FSW1、FSW2、FSW3
signals, which will be in charge of RF_SW in relative Band(EGSM、 DCS、 PCS)， and in TX/RX status.。
Revision
Date
Page No.
EGSM SAW Filter
PCS SAW Filter
DCS SAW Filter
Receiver
Figure 1
7
: 01
:2004-9-7
: Page 7 of 7
anceiver
Tr
I&Q
CPU
7300
From Antenna