Flash Problems - Audio Internal Problems - Sony Ericsson K800 Electrical Repair Manual

Flash problems
Flash process
No
startes
When using
EMMA
Yes
Power up the phone Flash ITP
No
Connect USB plug Using EMMA
From CPU passed
Is the phone
Yes
Indicate charging
No
Go to VBUS Insert the USB
Charging problems cabel
0V at
MP 101
EDB_EN
Yes
3.1V at
Replace
MP 132
System connector
D+/DTMS
No
Yes
0 Ohm
between Data signal
Yes
Pin 11 at X2300 3V PTP at
And MP102 MP 132
Yes
Replace N2300
Retest then
Replace D2304
TROUBLESHOOTER
START
Test the system
Connector
protections first.
Phone with
Normal SW
Use fixture
Connect 3.8V
Replace
Yes
D2301
Remove the USB
cabel
1.8V at SL 5 Replace
Yes No
MP 101 R2322
EDB_EN SL 4 Scrap
Scrap
No
D2000 faulty
Replace N2300
No
Retest then
Replace D2304
Replace
No
System connector
0 Ohm
between
No
Pin 10 at X2300
And MP132
Replace
Yes
D2304
Trouble Shooting Guide Flash Problems - Audio Internal Problems
Audio internal problems
Sl 5 Resolder
Go to
L4100 L4101
Audio External
L4105 L4106
Problems
Sl 4 scrap
No
Mic audio
200 mVolt AC
At X2508
and X2509
Yes
Settings
Mic1
Yes
Dictaphone
Loudspeaker
Apply Audio Loop
Mic audio
200 mVolt AC
At X2503
and X2504
Sl 5 Resolder
R4124 L4121
R4125 L4120
Sl 4 scrap
No
Yes
1.9 Volt DC 1.9 Volt DC
No
At TP 4105 At X2503
and TP 4106 and X2504
No
Yes
MP 61 and
No
MP 62
Short circuit
MP 86 or
MP 7
Short circuit
Yes
To Ground
Yes
Replace Replace
C4126 V4101
SEMC Electrical Repair Manual
Fault trace SW
START
Audio and FM Radio
Audio Loop test
Load the ITP Sw into
Settings Mic1
the phone.
Dictaphone
Use fixture
Earphone
Connect 3.8V
Apply Audio Loop
Use fault trace SW
Talk to the int Mik
Mic audio
200 mVolt AC at Replace
Yes
MP 68 BEARP and N2000
MP 69 BEARN
Yes
No
Mic audio Mic audio
20 mVolt AC 20 mVolt AC
Yes
At MP 42 MP70
INTMIC C4102
No
No
Replace
2.4 Volt DC
N4202
At
MP 73
CCO_2
Yes
Replace
No
Mic B4100
MP 59 CCO_1
Replace
No
Short circuit
N2000
To ground
Replace
Yes
N4202
Audio
Replace
No
At MP61
N2000
LINEP
Yes
1.8 Volt DC
No Yes
At MP 75
No
Scrap
Replace
D2000
N4100
faulty
1202-3085 rev. 2
K800 - K810
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