C905
1222-9526 rev. 1
TROUBLESHOOTING
TROU
B
L
E
S
H
O
OTIN
G
Current Consumption Test
Limits GSM 850 MHz
-
Transmitter current: 325mA
-
Tolerance: ±30%
-
Max TX Power GSM 900 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: GSM 900
Channel: 1
Power Level: 5
Limits GSM 900 MHz
-
Transmitter current: 250mA
-
Tolerance: ±30%
-
Max TX Power DCS 1800 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: DCS 1800
Channel: 512
Power Level: 0
Limits DCS 1800 MHz
-
Transmitter current: 220mA
-
Tolerance: ±30%
-
Max TX Power PCS 1900 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: PCS 1900
Channel: 512
Power Level: 0
Limits PCS 1900 MHz
-
Transmitter current: 180mA
-
Tolerance: ±30%
-
Max TX Power WCDMA BAND I
(Note: Valid only for C905 and C905a)
Fault Trace SW settings:
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels: Ch LOW
Modes: Max Pwr 23dBm
Limits WCDMA BAND I
-
Transmitter current: 550mA
-
Tolerance: ±25%
-
Max TX Power WCDMA BAND II
(Note: Valid only for C905a)
Fault Trace SW settings:
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels: Ch LOW
Modes: Max Pwr 23dBm
Limits WCDMA BAND I
-
Transmitter current: 470mA
-
Tolerance: ±20%
-
Max TX Power WCDMA BAND V
(Note: Valid only for C905a)
Fault Trace SW settings:
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels: Ch LOW
Modes: Max Pwr 23dBm
Limits WCDMA BAND I
-
Transmitter current: 590mA
-
Tolerance: ±10%
-
Max TX Power WCDMA BAND VIII
(Note: Valid only for C905 if WCDMA BAND VIII is supported)
Fault Trace SW settings:
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels: Ch LOW
Modes: Max Pwr 23dBm
Limits WCDMA BAND I
-
Transmitter current: 700mA
-
Tolerance: ±10%
If current consumption is out of the test limits, try to solve the problem by running SERP
Calibration. If still problem with current consumption then go to:
GSM and WCDMA Network problems TRS guides.
If the current consumption is equal to the test limits then go to:
Charging Test.
SEMC Troubleshooting Manual
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