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9
Charging LED control
EB-X400 has Charging LED control paths.
The Charging LED (Red) is controlled by CC07IO port of U2001 (E-Gold + V3).
The charge LED is switched on when the charger is connected to the phone even if the battery is deeply discharged.
Charge LED automatically turns off when the handheld detects the temperature error during battery charging.
9
Vibrator control
The vibrator motor uses discrete components and is controlled by the MCU data bus via the Melody IC (U2011 (EXT2 pin)).
The EB-X400 vibrator uses a coin type vibrator to save space on the PCB.
9
UI related Sleep control restrictions
When E-Power is set to Sleep mode, the step down converter of E-Power changes the operation mode from PWM to PFM to
save battery power. Maximum current delivery is 50 mA.
The following diagram shows the relations between UI condition state transition verses System sleep control restrictions.
Location Luminous
Colour
Pattern
Lighting interval
Incoming Call
Purple
50% Duty
ON : 480 msec
OFF : 480 msec
In Voice Call
Blue
50% Duty
ON : 1 sec
OFF : 1 sec
Missed call
Yellow
4% On
ON : 240 msec
notification
96% Off
OFF : 5760 msec
Period : 6 sec
Massage notification
Green
4% On
ON : 240 msec
96% Off
OFF : 5760 msec
Period : 6 sec
Alarm notification
Red
50% Duty
ON : 480 msec
OFF : 480 msec
If the phone has received the missed call notification and massage notification at same time, the cadence of LED illumination is
as follows:
Time1
OFF1
ON
ON
OFF2
Time2
ON :
100 msec
OFF1 : 2000 msec
OFF2 : 4160 msec
Time1 : 2100 msec
Time2 : 4260 msec
Yellow
Green
Содержание EB-X400
Страница 86: ...12 1 12 LAYOUT DIAGRAMS 12 1 Main Board U2001 ...
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Страница 88: ...12 2 Upper Face PCB 12 3 Green Black Black White ...
Страница 89: ...12 3 Hinge PCB 12 4 ...
Страница 90: ...12 4 SIM PCB 12 5 ...