Nokia RM-11 Series - Supply Lines Distribution by RF Components; 12 Supply Lines Resistance to Ground

CC Technical Documentation Troubleshooting - RF
RM-11
Issue 2 09/2005 ©2005 Nokia Corporation Confidential Page 27
Supply Lines Distribution by RF Components
12 Supply Lines Resistance to Ground
Note: Always measure resistance with the mobile terminal powered off.
Component Supply Line
N705 VR5
N701 VR5, VR7, VIO, V
REF
RF1
N601 VR2, VR3, VR6, VIO, VR1B, V
REF
RF2
N603 VBAT
N801 VR2, VBAT
N806 VR2
G501 VR3, VR1A
N507 VIO, VR1A
G502 VR4
N502 VR6
Supply Line Resistance Component
VR1A 100kΩ to GND Synthesizer (VCTCXO, UHF PLL)
VR1B 29kΩ to GND N601
VR2 4.4kΩ to GND N601, PA, PA Detector
VR3 4.5kΩ go GND N601, VCTCXO
VR4 4.7kΩ to GND VCO
VR5 3.2~5.1Ω to GND N750
VR6 39kΩ to GND N601, VCO Buffer
VR7 38kΩ to GND N701
VIO 15kΩ to GND N701, N601, UHF PLL
V
REF
RF1 45kΩ to GND N701
V
REF
RF2 46kΩ to GND N601
VCORE 4.5kΩ to GND UEM, UPP