General Power Checking - Nokia 6233 Service Manual

Nokia Customer Care

General power checking

Voltages
Check the following voltages:
Signal Regulator
Rename
VIO RETU
VBACK RETU
VSIM1 RETU
VSIM2 RETU
VDRAM RETU
VAUX RETU
VANA RETU
VR1 RETU
VRFC RETU
VRCP1 RETU
VRCP2 RETU
VREF RETU
VCORE TAHVO
VOUT TAHVO
VCAM_2V8 LP3987ITLX-2.
85/N1060
VCAM_1V8 LM3671TLX-1.
82/N1080
VCAM_1V5 TPS62311YZD
R/N1050
2V8_FM_LCD LP3985ITLX-2.
85/N6050
VMMC LP3928TLX-18
28/N3200
LCD_LED_OUT 4w_LED_DRIVE
R
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Sleep Idle
ON ON
ON ON
ON ON
OFF OFF
ON ON
OFF OFF
ON ON
OFF ON
OFF ON
ON ON
ON ON
OFF OFF
OFF OFF
OFF OFF
OFF OFF
ON ON
OFF OFF
OFF OFF
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BB Troubleshooting and Manual Tuning Guide
Nominal Main user
voltage
1.82 Memory, I/Os,
IrDA, Display
2.5 Back-up
battery
1.8/3.0 SIM card
3.0 Keyboard
backlight
1.82 SDRAM
2.5 IrDA
2.5 Audio, some
pull-ups
2.5 Crystal
oscillators
1.8 RAP3G
converters
4.5 To RF parts
4.5 To RF parts
1.35 RF reference
1.4 RAP3G digital
2.5
2.85 Camera
1.8 Camera
1.5 Camera
2.85 FM, LCD, Hall
sensor
3.0 MCC card
LCD Backlight
RM-123; RM-145
Notes
EL-foil driver
IrDA active
RF active
RF active
Accessory
connected
Camera ON
Camera ON
Camera ON
Issue 1