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7 Key problem
•
Make a general visual inspection for corrosion or oxidation caused by liquid damage
according to point 1.2
7.1 Side keys
•
Turn on the phone. Go to the service test menu; choose "Keyboard". Press all the side
keys. The pressed key will be indicated in the LCD and a click is heard (no click is heard
for the volume keys).
•
Check if the volume keys (Fig. 7.1), the camera key (Fig.7.1), the Internet-access key
(Fig. 7.2), and the on/off key (Fig. 7.3) work properly and if the mechanical response feels
normal. Replace the volume keys, the camera key, the Internet access key or the on/off
key if necessary.
If the failure still occurs, handle the unit according to the local company or the GSP directives.
7.2 Keyboard
•
Turn on the phone. Go to the service test menu; choose "Keyboard". Press all the keys.
The pressed key will be indicated in the LCD and a click is heard.
•
Check if the mechanical response feels normal and that all the keys have been showed in
the LCD.
•
Check if the dome foil assy (Fig. 7.4) is mechanically damaged, dirty or oxidized. Replace
it if necessary.
•
Check if the keyboard flex-film is fitted correctly into the FPC connector (Fig. 7.5) and
check if the FPC connector is closed.
•
Check if the keyboard (Fig. 7.6) is mechanically damaged or dirty. Replace it if necessary.
If the failure still occurs, handle the unit according to the local company or the GSP directives.
7.3 Joystick
•
Turn on the phone. Go to the service test menu; choose "Keyboard". Move the joystick in
all directions (do not forget to press it downwards). The moved direction will be indicated
in the LCD and a click is heard.
•
Check if the mechanical response feels normal and that all directions have been indicated
in the LCD.
•
Check if the joystick button (Fig. 7.7) is mechanical damaged or dirty. Replace it if
necessary.
Note: When replacing the joystick button remember to replace the joystick dust gasket as well.
If the failure still occurs, handle the unit according to the local company or the GSP directives.
4_00021-1/FEA 209 544/76 B
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, SP/Mechanical
10(18)
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