RM-240
BB Troubleshooting and Manual Tuning Guide
General power checking
Check the following voltages:
Signal name
Regulator
VIO
AVILMA
VBACK
AVILMA
VSIM1
AVILMA
VDRAM
AVILMA
VAUX
AVILMA
VANA
AVILMA
VR1
AVILMA
VRFC
AVILMA
VRCP1
AVILMA
VREF
AVILMA
VCORE
BETTY
VOUT
BETTY
VCAM_2V8
LP3987ITLX-2.
85/N3300
VCAM_1V8
LM3677TLX-1.
82/L3300
VCAM_1V3
LP5952TLX-1.
3/L3403
VSD
LP3928TLX-18
28/Z4800
VLEDOUT
TPS61061/
N2301
VLED
TPS75105/
N2401
VTVO
TK63115B-G/
N2411
Issue 1
Sleep
Idle
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
Nominal
Main user
voltage
1.82
Memory, I/Os,
Display, RAP
2.5
Back-up
battery
1.8/3.0
SIM card
1.82
SDRAM
2.5
Hall sensor
display, TV out
2.5
Audio, some
pull-ups
2.5
Crystal
oscillators
1.8
RAP converters
4.75
To RF parts
1.35
RF reference
1.05
RAP digital
1.25
1.35
1.40
2.5
Analogue
switch
2.850
Camera
1.800
Camera
1.3
Camera
2.850
MMC/SD card
14.5
LCD Backlight
4.0
Keyboard
backlight
1.5
TV out
Notes
RF active
Accessory
connected
Disabled in
sleep
Disabled in
sleep
Disabled in
sleep
Disabled in
sleep
Disabled in
sleep
Disabled in
sleep
Disabled in
sleep
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