Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
1257-5712 Rev 1
Sony Ericsson Mobile Communications AB
– Company Internal 12(15)
Troubleshooting Flow
1.10 Data Communication
Symptom:
Replace:
No communication via the USB Connector, charging via USB connector is working
X2200
, if damaged vision check pin 2, 3 and 4
N2200
, if X2200 pin 2,3 or 4 are short circuit to GND
Z2200
, if more than 4
between pin 1-2 and more than 4
between pin 3-4
Symptom:
Replace:
No Bluetooth and WLAN connection
L8100
, if more than 2
N8102
Symptom:
Replace:
Bad Bluetooth and WLAN connection
X8420
or
X8421
, if damaged
X8401
, if more than 1
between term A and C
Z8001
Symptom:
Replace
No Bluetooth and / or WLAN connection
N8100
N8101
Symptom:
Replace:
No GPS connection
X8422
or
X8423
, if damaged
Z8401
or
Z8403C
N8401
N2800
