Nokia 6150 - External Audio Failures

CONFIDENTIAL
Service & Analysis Center Europe
Training Team
version 1.0 / 19.10.1999 Page 24 of 41
External Audio Failures
XMIC failure
(transmitting
audio)
XEAR failure
(receiving audio)
External audio failures
resolder or clean
X100,
change if
necessary
check X100
if poor soldered
or soiled
contacts
check X100
if poor soldered
or soiled
contacts
check L107
(0 Ohm)
change L107
resolder or clean
X100,
change if
necessary
check L106 (0
Ohm)
change L106
Yes not oK
oK
not oK
Yes not oK
oK
not oK
L106
• Check resistance of coil (0Ω), if there is no XMIC
L107
• Check resistance of coil (0Ω), if there is no XEAR
X100
• Check soldering
• Check contacts (soiling)