C702
1221-7857 rev. 1
TROUBLESHOOTING
Reference Measurement Points
TROU
B
L
E
S
H
O
OTIN
G
Voltages to N2000
MP
PBA GND
MP 80 (TP2200)
MP 81 (TP2202)
Power sup 3.80 V
GND
VBATI
BDATA
Pnone Off
0.00V
3.8V
0.00V
Phone On
0.00V
3.8V
0.00V
Voltages from N2000
MP
MP 24 (ST2205)
MP 19 (ST2206)
MP 20 (ST2207)
MP 25 (ST2208)
MP 26 (ST2209)
VAUDIO26
VANA25
VDDE18
VBT27
VDIG
0.00V
0.00V
0.00V
0.00V
0.00V
Power sup 0.00 Volt
Phone Off
0.00V
0.00V
0.00V
0.00V
0.00V
Power sup 3.80 Volt
Phone On
2.6V
2.5V
1.8V
2.7V
2.7V
Power sup 3.80 Volt
Voltages from N2000
MP
MP 45 (ST2213)
MP 43 (C2230)
MP C2218
MP ST2210
VCORE12
VccA
VDD_LP
VBACKUP
0.00V
0.00V
2.2V
2.2V
Power sup 0.00 Volt
Phone Off
0.00V
0.00V
2.2V
2.2V
Power sup 3.80 Volt
Phone On
1.2V
2.8V
2.2V
2.2V
Power sup 3.80 Volt
C2217
Fully charged
Clocks to N2000
MP
MP 41 (C2103) & MP 42 (C2106)
32kHz
Phone Off
32.768kHz
Power sup 0.00 Volt
Phone On
32.768kHz
Power sup 3.80 Volt
Clocks from N2000
MP
MP 39 (R2122)
RTCCLK
Phone Off
0Hz
Power sup 3.80 Volt
Phone On
32.768kHz
Power sup 3.80 Volt
VCORE18 from N2202
MP
MP 7 (ST2214)
VCORE18
Phone Off
0.00V
Power sup 0.00 Volt
Phone On
1.8V
Power sup 3.80 Volt
WCDMA N1210
Use Fault Trace SW to activate and deactivate WCDMA Radio
MP
MP 84 (L2207)
MP 86 (ST2217)
MP 85 (R2299)
Power sup 3.80 Volt
VCC_WPA
WPAVCC
DCDC_EN
WCDMA Radio Off
0.00V
0.00V
0.00V
WCDMA Radio On
3.1V-3.3V
1.2V-1.8V
1.8V
Bluetooth N1400
Use Fault Trace SW to activate and deactivate Bluetooth
MP
MP 26 (ST2209)
MP 20 (ST2207)
MP 25 (ST2208)
MP 5 (R2101)
Power sup 3.80 Volt
VDIG
VDDE18
VBT27
BT_CLK
Bluetooth Off
2.7V
1.8V
2.7V
26MHz
Bluetooth On
2.7V
1.8V
2.7V
26MHz
FM Radio N1400
Use Fault Trace SW to activate and deactivate FM Radio
MP
MP 80 (TP2200)
MP 20 (ST2207)
MP 5 (R2101)
Power sup 3.80 Volt
VBATI
VDDE18
BT_CLK
FM Radio Off
3.8V
1.8V
26MHz
FM Radio On
3.8V
1.8V
26MHz
Main and VGA Camera
Use Fault Trace SW to activate and deactivate Main and VGA Camera. Main and VGA Camera must be connected to the PBA
MP
MP 72 (TP2204)
MP 77 (TP2210)
MP 71 (TP2207)
MP 52 (TP2208)
MP 76 (ST4304)
MP ST4312
P
VCAM12
VCAMAF
VCAMSA18
VCAMIO
CAMSYSCLK
CAMRESn
Main Camera Off
0.00V
0.00V
0.00V
0.00V
0Hz
0.00V
Main Camera On
1.3V
2.8V
2.8V
1.8V
13MHz
1.8V
Charging
Charging off 1:
DCIO/SEPI not connected.
Charging off 2:
DCIO/SEPI connected.
Charging 100mA: Use
Fault Trace SW:
Start Current Calibration----->
Set VBATT to 3.8
Note: The Current Calibration
Test must be repeted if current
consumtion going under 50mA
at Power Supply Channel 2
when you performing this
measurements.
Charging 800mA: Use
Fault Trace SW:
Start
Current Calibration-->Set VBATT
to 3.8V-->Perform Step1
Note:
The Current Calibration Test
must be repeted if current
consumtion going under 725mA
at Power Supply Channel 2 when
you performing this
measurements.
MP
MP 117 (C2201)
MP 46 (C2241)
MP 119 (V2202_Pin2)
MP 121 (R2201)
Power sup 3.8 Volt
DCIO
DCIO_INT
CHREG
CHSENSEP
Charging off 1
0.00V
3.6V
3.2V
3.8V
Charger voltage 0.0 Volt
Charging off 2
5.0V
4.7V
4.7V
3.8V
Charger voltage 5.0 Volt
Charging 100mA
5.0V
4.8V
3.8V
3.8V
Charger voltage 5.0 Volt
Charging 800mA
4.5V
4.3V
2.3V
4.2V
Charger voltage 5.0 Volt
VBUS
USB cable connected to PC
MP
MP 101 (R2287)
Power sup 3.80 Volt
VBUS
USB Cable disonnected from the
phone
0.00V
USB Cable connected to the
phone
5.0V
MCLK 26MHz from N1200
MP
MP 6 (R2120)
MCLK
Phone Off
0Hz
Power sup 3.80 Volt
Phone On
26MHz
Power sup 3.80 Volt
SEMC Troubleshooting Manual
25
(115)
Summary of Contents for C702
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