Flowchart Audio Faults - Nokia 6610 Repair Hint

Customer Care Europe, Middle East & Africa
SCCE Training Group
 2003 Nokia Mobile Phones

Flowchart audio faults

Audio faults
Connect the headset and make a
phone call or turn on the FM-Radio
and use volume side keys S300 and
S301 to change the volume.
Does the
volume change?
OK
Check
the sound if it
is poor or
low.
nOK
Change IHF
power amplifier
N150.
© NMP 2003
Check VBat at
nOK
C167
OK Phone ok
OK
CONFIDENTIAL
NHL-4u/NHL4/NHL-4j
6610/7210/7250
Date 21/05/2003
VBat ok?
OK
Check
ENA,CLK,DATA at
J152-154: Only
nOK
measurable when
pressing a
volume key
OK
Check
R161,R162, C164,
L151,L152 for shorts or
interruptions in IHF
speaker
line.
OK
Check
resistance ~ 7ohm with
ohm meter between both
IHF speaker contact springs.
Also check if the springs
are dirty or bent.
OK
Check
R164-R167,
C157,C158 for shorts
or interruptions in
XEAR line.
Checked by:
SCCE Training Group
20 (22)
Repairhints
Version 3.0
Check C167 for shorts
and change if
necessary.
Change UPP. If
fault persists,
change PWB.
Resolder or
change faulty
nOK
components.
Clean springs,
otherwise
nOK
change
C-cover I021.
Resolder or
change faulty
nOK
components.
Approved by:
CC Europe, Middle East & Africa