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4. Battery does not charge.
Set a battery of 4.0 - 4.2 V. Click the "Performance check
adjustment" button on SPST.
Click the "Temperature adjustment" button. Is the value of
"temp" normal? (Measurement tolerance: ± 5 deg.)
Click the "Battery voltage check" button. Is the voltage 4.0 -
4.2 V?
Set a battery of 3.7 - 3.9 V and start in normal mode.
Connect the AC charger to the external connector.
Is the voltage applied to TP503 higher than that of battery?
When the AC charger is inserted to the external connector, is
IC107 pin 1 at "L"?
Connect the AC charger to the external connector.
After approx. 15 seconds, do the voltages on TP159 and
TP502, and TP506 increase by more than 0.05 V?
The battery is defective, or the battery cycle is shortened.
5. Vibrator does not work.
Are vibrator terminals in contact with the land?
Are terminals and the land clean?
Is rectangular wave of 3 V sent to between vibrator terminals
in sync with the vibration pattern?
Is VBAT voltage applied to IC108 pin 4?
Is signal synchronised with the vibration pattern sent to IC108
pin 3?
Is signal synchronised with the vibration pattern sent from
IC101 pin 19?
Do ring tones sound from earpiece (for loud speaker)?
IC101 is defective.
CONFIDENTIAL
YES
YES
YES
YES
YES
YES
YES
Hereafter check with vibrator working.
NO
YES
NO
NO
YES
* For settings and connections for SPST, refer to the "ADJUSTMENTS,
PERFORMANCE CHECK, AND FIRMWARE UPGRADE" on page 2-1.
TH102 and IC103 are defective.
NO
IC103 is defective.
NO
R535, R536, Q102, and IC107 are defective.
NO
IC107 is defective.
NO
R535, R536, Q102, IC107, IC102, Q101, IC103, D101, and
NO
D102 are defective.
Vibrator is deformed and defective. (When vibrator terminals
NO
and the land are dirty, clean or replace them.)
Vibrator is defective.
YES
NO
IC108 is soldered improperly.
IC108 is defective.
YES
IC101 is soldered improperly.
YES
Go to the section "Earpiece (for loud speaker) does not work".
NO
(see page 2-50)
2 – 49
GX15
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