4. Troubleshooting
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Display/Illumination problems
Make a general visual inspection for corrosion or oxidation from liquid damage.
Turn the phone on. Check the LCD and the illumination. The illumination is lightened when the phone
starts and will continue for approximately 20 sec
Turn the phone on. Go to service test menu; choose “10. LCD” . You should see a pattern check that
no lines or pixels are missing and that there are no discolorations. If necessary replace the LCM.
If all segments are missing check that the LCD connector (Fig.5.1) and LCD FPC (Fig 5.2) is not
mechanical damaged, dirty or oxidized.
Turn the phone on. Go to service test menu; choose “9. LED” . The illumination should start flashing
(Fig 5.3).
Check that all 10 Keypad LEDs have the same illumination strength. If necessary replace the LED
with the weakest light. Repeat this step until all LEDs light ever over the keypad.
Fig.5.1
Fig.5.3
Fig.5.2
Содержание KG200
Страница 3: ... 4 ...
Страница 11: ...2 Software Download Procedure 12 Select default folder Press Install ...
Страница 12: ...2 Software Download Procedure 13 Press Finish Enable Leo Download tool ...
Страница 43: ...4 Troubleshooting 44 RF transceiver U602 RX Path TX Path ...
Страница 48: ...4 Troubleshooting 49 U600 PA U602 U601 T R J601 U603 J601 ...
Страница 52: ...4 Troubleshooting 53 U400 U100 ...
Страница 54: ...5 Circuit Diagrams 55 SYSTEM BLOCK DIAGRAM 5 Circuit Diagrams ...
Страница 63: ... 64 ...
Страница 70: ... 71 6 PCB LAYOUT ...
Страница 71: ... 72 6 PCB LAYOUT ...
Страница 73: ... 74 ...
Страница 78: ...Note ...
Страница 79: ...Note ...