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7. Vibrator does not work.
Is 3.0 V on TP1609 when the vibrator is
removed and then activated?
YES
Is 3.0 V on TP1609 when the vibrator is fixed
and then activated?
YES
The vibrator is defective, or there is clogging
caused by foreign objects.
8. Speaker does not work.
• When both voice and ring tones are not heard from the speaker, check the items of 8.1.
• When ring tones are heard from the speaker but voice is not, check the items of 8.2.
• When voice is heard from the speaker but ring tones are not, check the items of 8.3.
8.1. Both voice and ring tones are not heard from the speaker.
Is the speaker connector in contact with the
other speaker connector CN2004 on the SD
PWB?
YES
Is the impedance between speaker terminals
approx.8 ohms?
YES
Is there conduction between pin 1 of the
speaker connecter CN2004 and R2016 and
between the pin 2 and R2019?
YES
Do R2012 and R2018 have an impedance of 1
ohm?
YES
Is there conduction between R2012 and
TP1611 and between R2018 and TP1608?
YES
Is signal sent to R1646?
NO
Are signals sent to C1621 and C1622?
YES
C1621, C1622, C1625, R1617, R1619, R1620
and IC1600 are defective.
CONFIDENTIAL
At this time, is 1.6 V or more on IC1601 pin 1?
NO
IC1601, CA1609, and D1600 are defective,
mounted improperly, or short-circuited
Vibrator is defective.
NO
Poor contact at the connector.
NO
Speaker parts are defective.
NO
The connector CN2004 is soldered improperly
NO
or the PWB is defective.
Or R2019 and R2016 are defective.
R2012 and R2018 are defective.
NO
Poor contact or soldering between the SD PWB
NO
socket CN2000 and the socket connected to
the SD P.W.B Connect FPC, or between the
socket connected to the SD P.W.B Connect
FPC and the main PWB socket CN1500. Or the
PWB is defective..
IC1603, C1632, R1613, R1614 and R1646 are
defective.
Is the battery voltage applied to R1656?
YES
Also is the voltage 2.9 V applied to R1645?
Is the battery voltage applied to R1607? Also is
NO
the voltage 1.8 V applied to R1602 and 2.9 V to
R1606 and R1609?
The main PWB or the power supply system is
defective.
2 – 29
NO
YES
YES
NO
YES
NO
802SH
IC1600 is defective.
The main PWB or the
power supply system
is defective.
IC1600 is defective.
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