Led/Illumination Test; Keyboard Test; Speaker Test; Earphone Test - Sony Ericsson W550c Test Instruction, Mechanical

3.2

LED/Illumination Test

To verify that the backlighting of the display and the keypad are OK:
1. Select "LED/illumination" from the "Service Tests" menu and press the "Select" key.
2. The words "LED/illumination" will be splashed on the screen.
3. Check that the backlight toggles on and off and the LED's under the keypad blinks on and
off.
4. Press the "OK" key to end the test and return to the Service Tests menu.
3.3

Keyboard Test

To verify that the keyboard, the Navigation key and side keys are OK:
1. Select "Keyboard" from the "Service Tests" menu and press the "Select" key.
2. The phrase "Keyboard Test. Press any key." will be splashed on the screen.
3. Press all keys on the keypad, the camera key, side volume keys and gaming keys. If they
are ok a text message will be displayed corresponding to the key pressed. All keys should
be tested.
4. If you stop pressing keys the phone will return to the Service Tests menu after a few
seconds.
3.4

Speaker Test

WARNING! DO NOT HOLD THE PHONE TO YOUR EAR WHILE PERFORMING
To verify the Speaker functions:
1. Select "Speaker" from the "Service Tests" menu and press the "Select key.
2. Adjust the volume with the navigation or side volume keys and make sure that the
speaker is working properly.
3. Press the "OK" key to go back to the Service Tests menu.
3.5

Earphone Test

To verify the Earphone functions:
1. Select "Earphone" from the "Service Tests" menu and press the "Select" key.
2. Adjust the volume with the navigation or side volume keys and make sure that the
speaker is working properly.
3. Press the "OK" key to go back to the Service Tests menu.
3.6

Microphone Test

This test is intended to test the microphone. Therefore, the speaker should be tested before
this test is entered.
1. Select "Microphone" from the "Service Tests" menu and press the "Select" key.
2/000 21-1/FEA 209 544/96 A
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THIS TEST.
Test Instruction, Mechanical
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