Charging Problems - Vbus Charging Problems - Sony Ericsson K800 Electrical Repair Manual

Charging problems
Use fixture and
fault trace SW
Use fault trace
Connect 3.8V
No SW. Run Battery
Connect charger
calibrations
Plug 5.3 V and
Passed
then SEPI cabel
Yes
3.2 V and 4.1 V
Use fault trace
at MP 13 TP2220 when
SW. Run Current
battery calibrations
calibrations
Yes
Is done
Passed
Yes
No No
Use fixture and
Replace X2200
fault trace SW
Connect 3.8V
Connect charger
Plug 5.3 V and then
SEPI cabel
Replace N2000
Yes
5,3 Volt at
MP 130
3.2 V and 4.1 V
DCIO
at MP 38 VBATI when
Yes
battery calibations
Is done
No
SL 5 Replace
R2200
SL 4 scrap
Yes
Start
Mp 28
current calibrations
CHSENSE+
Higher than
3,8 Volt
Yes
Mp 128
Using Current
DCIOint
No
when charger
Higher than
calibration
3,8 Volt
Is done
Yes
Marita
Replace N2000 D2000 faulty
Scrap
TROUBLESHOOTER
START
Load the ITP Sw into
the phone
Connect dummy
battery3,8V
2A current limit and
Chargers plug 5.3V
2A current limit.
SL 5 replace
Yes
V2200
SL 4 scrap
V2200
Short circuit
Load SW from EMMA
Content refresh
No
Go to
Test Charging
SL5 Replace
Using current.
Yes
V2204
V2204 getting
SL 4 scrap
hot
No
Replace X2300
No
System connector
Yes
R2201 Replace N2000
0.1 Ohm
SL 5 Replace
No
R2201
SL 4 scrap
Mp 126
CHREG
No Yes
Pin 4 V2202 Replace V2202
Lower than
MP 128
No
Replace N2000
Mp 127
Pin 4 V2203 SL 5 Replace
No
Lower than Yes V2203
MP 130 SL 4 Scrap
Pin 8 V2203
No
DCIO_ON SL 5 Replace
No Yes
Pin 1 V2210 V2210
High SL 4 scrap
Trouble Shooting Guide Charging Problems - VBUS Charging Problems
VBUS Charging problems
Connect USB plug
From CPU
5V at
MP 107
VBUS
No
Replace
No
N2300 or D2304
System connector
Getting hot
Yes
Replace N2300
Yes
N2300 Getting hot
SEMC Electrical Repair Manual
START
Phone with
Normal SW
Use fixture
Connect 3.8V
5V at
Replace
Yes No
MP 106
V2220
VBUS_1
Yes
4.7V at
Replace
No
MP 103
V2201
VBUS_VINC
Replace
Yes
N2000
Replace
No
D2304
1202-3085 rev. 2
K800 - K810
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