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6 Key Problems
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6.1 Volume Switch does not work
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If the fault still remains, handle the unit according to the local company directives.
4/00021-2/FEA 209 544/52 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. 1.)
Figure 1
Repair Instruction, Electrical
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