Sony Ericsson K630, Troubleshooting Manual

Page: 19 / 96

SEMC Troubleshooting Manual TROUBLESHOOTING System Connector Protection Test - Current Consumption Test
K630 - V640 - K660
System Connector Protection Test
Perform Diode and Ohm measurements with a Multimeter
Connect the black probe at ground (Pin 9 on the system connector, X2400)
Pin 1
Pin 9GND Pin 12
Pin at
X2400
Diode
Measurements
/ Volt
Ohm
Measurements
/ Ohm SL 4 Action SL 5 Action
1 0L 27K No Action
D2405 if lower than 27K Ω
R2433 if higher than 27K Ω
2 0.0 1.4 No Action
L2400 and L3301
If higher than 1.4 Ω
3 2.0 12K
N3101 if lower than
12K Ω L2401 if higher
than 12K Ω L2407 If higher than 12K Ω
4 1.0 1K
N3101 if lower than
1K Ω L2402 if higher
than 1K Ω L2408 if higher than 1K Ω
5 0.0 82
N3101 if lower than
82 Ω L2403 if higher
than 82 Ω L2410 if higher than 82 Ω
6 0.0 82
N3101 if lower than
82
Ω L2404 if higher
than 82 Ω L2409 if higher than 82 Ω
7 0L 0L Not connected Not connected
8 1.4 1.5K
V2420 if lower than
1.5K Ω
L2405, R2440, R2436
if higher than 1.5K Ω
9 0 0 No Action No Action
10 0L 430K No Action
D2405 if lower than 430K Ω
R2432 if higher than
430K Ω
11 0L 470K No Action
D2405 if lower than
470K Ω R2431 if higher
than 470K Ω
12 0L 80K
V2421 if lower than
80K Ω
Current Consumption Test
Step 1:
Insert Local SIM Card and use the phone with the Normal SW (SSW) and dummy battery connected to
Power Supply Channel 1 VBATT according to Picture 1.
Instrument settings: Voltage: 3.8 Volt, Limiter 3A.
Measure the current when the Phone is off. Check the current consumption at Power Supply Channel 1
VBATT.
Picture 1
Current consumption in off mode should be less than 1mA.
If more than 1mA go to Dead Phone problems part 1 TRS guide.
Step 2:
Start the phone:
Measure the deep sleep current max 6mA typical between 0-3mA.
Make sure that the operator is running with deep sleep. (This operation can be switched off by operator if
the network is busy).
If the phone is using more than 6mA, then go to EMMA III and perform Software Update Contents Refresh
(SUCR).
Step 3 with Mobile Phone Tester Instrument
Insert Test SIM Card and use the phone with the Normal SW (SSW) and dummy battery connected to Power
Supply Channel 1 VBATT according to Picture 1.
Instrument settings: Voltage: 3.8 Volt, Limiter 3A.
Use the Mobile Phone Tester Instrument in signalling mode directly connected to the phone with the RF
Connector or use Shield Box if not possible. Phone Display must be on during these tests to get correct
current measurements.
Perform Radio TX measurements at GSM and WCDMA Band and compare the result with limits according to
the text below.
Transmitter current 850 MHz at Ch: 128 power level 5. Typical 400mA
Transmitter current 900 MHz at Ch: 1 power level 5. Typical 385mA
Transmitter current 1800 MHz at Ch: 512 power level 0. Typical 365mA
Transmitter current 1900 MHz at Ch: 512 power level 0. Typical 365mA
Transmitter current WCDMA BAND I Low RX Ch: 10562 at 23dBm output power Max 850mA
If the current consumption is not correct, the fault could be fixed by running SERP calibration if not then go
to GSM and WCDMA Network problems TRS guides.
If the current consumptions are equal to test limits then go to Charging Test.
1215-3608 rev. 1 19 (96)
TROU
B
L
E
S
H
O
OTIN
G