Audio Jack Problems - Sony Ericsson W995 Troubleshooting Manual

Hands-Free (PHF) Aux Earphone Problems
Hands-Free (PHF) Connection is working properly.
Hands-Free (PHF) Aux Earphone Problems TRS guide
SL 4 Replace Is
N3101
MP 96 (X2405_Pin 5)
Yes
SL 5 Replace or MP 98 (X2405_Pin 6)
C2447 or C2448 Short Circuit to
GND
No
More than
SL 5 Replace 400mV AC Pk-Pk
N2000 or N2010 No 1 kHz signal at MP 31
SL 4 Escalate (C3149) and
MP 33 (C3150)
SL 4 Replace
N3101 Is L2406
Yes
SL 5 Replace = Max 1 Ohm
N2000 or N2010
Replace
No
L2406
TROUBLESHOOTING
START
Note !
Before following this guide make sure that the
Load ETS SW into the Phone
Use the TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
Use Hands-Free (PHF) Set
Continue with the
1: Use Fault Trace SW and go to:
Audio and FM Radio
Audio Tone
Activate:
INIT TONE TEST
Activate:
PHF Earphone
2: Disconnect: DCIO/SEPI from the PBA
3: Connect the PHF set to the PBA
Can you Go to
hear the 1 kHz tone Hands-Free (PHF)
No Yes
In the PHF Aux Microphone
Earphone Problems TRS guide
More than
300mV AC Pk-Pk
Replace
Yes 1 kHz signal at MP 97 Yes
X2405
(L2403) and
MP 99 (L2404)
No
Disconnect VBATT and PHF Set and
Remove PBA from the TRS Fixture
Are
Replace
L2403, L2404,
Yes No L2403, L2404,
L2440, L2443
L2440 or L2443
= Max 2 Ohm
Handsfree (PHF) Problems - Audio Jack Problems
Audio Jack Detection Problems
Load ETS SW into the Phone
Connect: VBATT and DCIO/SEPI
Insert the Hands-Free (PHF) Set with 3.5mm Stereo Plug
into the TRS Fixture 3.5mm Audio Jack
Audio Jack Detection Problems TRS guide
1: Use Fault Trace SW and go to:
Disconnect VBATT and DCIO/SEPI
Remove PBA from the TRS Fixture
SL 5 Replace
R3115 or N2010 Yes
SL 4 Escalate
SEMC Troubleshooting Manual
START
Use the TRS Fixture
Use Fault Trace SW
Continue with the
General
Selftest
Run:
Audio Jack Detection
Is the
Audio Jack Detection Replace
Yes
test result Audio Jack
0x1
No
Is MP 50 SL 4 Replace
(V3103_Cathode) V3103
Yes
Short Circuit SL 5 Replace
to GND N2010
No
Is L3104 Replace
No
= Max 2 Ohm L3104
1230-1858 rev. 1
W995
25 (125)