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6 Key Problems
6.1 Volume Switch does not work
If the fault still remains, handle the unit according to local directives.
Figure 6-1
4/00021-2/FEA 209 544/74 A
Sony Ericsson Mobile Communications AB
Use the Service Test menu, choose Service tests/Keyboard.
Make sure if it is the Keyboard that causes the problem. Check keyboard pads and key
domes for damage, dust, dirt, moisture and oxidation. Clean if needed.
If it is the Keyboard that causes the problem, replace the Keyboard.
Check Volume Switch soldering.
If Volume Switch that causes the problem, replace the Volume Switch (Fig. 6-1.)
Trouble Shooting Guide, Electrical
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