Nokia RM-94 Rf Troubleshooting Instructions page 30

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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
C7711
VPCTRL_1800 1900
Yes
Spectrum analyzer
RF@Test-Jig
Pout
= +21.5 dBm, 1880 MHz
Yes
GSM 1900 TX
OK
30
IREF_900 V = 1.83 Volt
Mode
V =
R7715
Check PA N7700
No Check Power Loop
(TXC, RFin 1800 1900,
COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All Rights Reserved.
6(b) - RF Troubleshooting
2.78 Volt No
V= 2.7 V
DET)
RM-94
Check
Baseband
Issue 1 04/2005