Service Tests; Main Display Test; Led/Illumination Test - Sony Ericsson K770 Test Instruction, Mechanical

3 Service Tests

NOTE!
1. Press the "On/Off" button to start the mobile.
2. Select "Normal mode", otherwise the radio-test doesn't work.
3. The Service Tests menu is entered using the following Navigation key and
4. Select "Service Tests" then press the "Select" key.
3.1

Main Display Test

NOTE!
To verify the display:
1. Select "Main Display" from the "Service Tests" menu and press the "Select" key.
2. The words "Main Display" will be splashed in the center of the screen and then
the display toggles between different test patterns. Make sure that there are no
missing segments and the colors/contrast are OK.
3. Press the "Back" key to return to the Service Tests menu.
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 LCD backlight/LED's under the keypad fades on and off and the
red charging LED in the IR window toggles on and off.
4. Press the "OK" key to end the test and return to the Service Tests menu.
2/000 21-1/FEA 209 544/142 A
©
Company Internal Sony Ericsson Mobile Communications AB
It is not necessary to have a SIM card inserted for the Service Tests
unless specifically noted.
keypad sequence: → ∗ ← ← ∗ ← ∗ .
Minor variations in display brightness and color may occur between
phones. There may be tiny bright dots on the display. These are called
defective pixels and occur when individual dots have malfunctioned and
can not be adjusted. Two defective pixels are deemed acceptable.
Test Instruction, Mechanical
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