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Nokia RM-721 - General Power Checking

Nokia RM-721
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General power checking
Check the following voltages:
Signal
Rename
Regulator Sleep Idle Nominal
voltage
Main user Notes
VIO Pearl_J ON ON 1.8 Memory, I/Os,
display,
camera,
BTHFMTXRDS3.
0
VBACK Pearl_J ON ON 2.5 Back-up
battery
VSIM Pearl_J ON ON 1.8/3.0 SIM card
VAUX1 Pearl_J ON ON 2.5/2.8 Camera,
display and hall
sensor
VANA (VAUX1) Pearl_J ON ON 2.5 Camera
VR1 Pearl_J OFF ON 2.5 Crystal
oscillators
VMEM Pearl_J OFF OFF 2.9 microSD Disabled in
sleep
RM-721; RM-722
BB Troubleshooting and Manual Tuning Guide
Page 3 – 12 COMPANY CONFIDENTIAL Issue 1
Copyright © 2011 Nokia. All rights reserved.

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