Trouble Shooting Guide, Standard
4/00021-2/FEA 209 544/21 B 20(26)
9 Alert Problems
9.1 Type of problem
Insert a dummy battery and a SIM-card into the phone and start it up by pressing the On/Off
key. Wait for the phone to get SERV (towards the test instrument or the net).
If the phone does not beep at startup, use the menu to increase the ring volume (not from full
to “step”, as that does not generate any sound).
If the sound is faint or there is no sound at all, go to section 9.2.
When the phone has got SERV and the top indicator flashes green, reduce the battery voltage
to 3.20 V. By doing this, the top indicator should start to flash red, the battery indicator show
an empty flashing battery and the phone should warn with a beep.
If none of the above mentioned things happen the phone needs a battery calibration.
If the phone beeps and the battery indicator shows an empty flashing battery but the top
indicator does not flash red, go to section 9.3.
Use the menu to set the vibrator to On mode.
If the phone does not vibrate when the settings are stored, go to section 9.4.
9.2 Buzzer faint or dead
Open the phone and check for liquid damage.
Make sure that the buzzer H600 is not incorrectly soldered.
If the soldering is correct, replace H600.
Assemble the phone and try again as described in 9.1.
Open the phone, power up the board and start it by pressing the On/Off key.
Measure the voltage at pin 3 of H600 (3.70 V).
If the voltage is incorrect, replace R603.
If that does not help there is a foil damage, send the unit on according to the local company
directives
Measure the resistance of R651 (1 kohm).
If the resistance is incorrect, replace R651.
If the resistance is correct, replace V606.
If that does not help, replace V605.
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