User Guide

RH-37
6(b) - RF Troubleshooting Instructions Nokia Customer Care
Page 32 Nokia Corporation Issue 1 07/04
EDGE
Ensure that GMSK is ok.
Use Phoenix to select
TX_Data Type: All 1
EDGE: On
TX Power Level: 5
Ch661
Ensure Vbatt=3.6 V
Yes
Oscilloscope
C7702
IREF_900
V = 1.83 Volt Check
C7711
Mode
V = 2.78 Volt No Baseband
VPCTRL_1800 1900
R7715
V= 2.7 V
Yes
Spectrum analyzer Check PA N7700
RF@Test-Jig No Check Power Loop
Pout
= +21.5 dBm, 1880 MHz
(TXC, RFin 1800 1900,
DET)
Yes
GSM 1900 TX
OK