3. H/W Circuit Description
- 34 -
3.5.9. Switch On/Off
MG220 Power State : Defined 4cases as follow
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Power-ON : mobile is powered by main battery or backup battery.
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Power-OFF : mobile isn’t any battery.
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Switch-ON : mobile is powered and waken up from switch-off state.
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Switch-OFF : mobile is powered to maintain only the permanent function (ULPD).
To enter into Switch-ON state, one of following 4 condition is satisfied.
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PWR-ON :
pushed after a debouncing time of 30ms.
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ON_REMOTE :
After debouncing, when a falling edge is detected on RPWON pin.
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IT_WAKE_UP :
When a rising edge is detected on RTC_ALARM pin.
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CHARGER_IC :
When a charger voltage is above VBAT+0.4V on VCHG.
3.5.10. Memories
MG220 using 128Mbit Flash + 64Mbit SRAM with 16 bit parallel data bus thru ADD01 ~ ADD22.
3.5.11. Display & FPCB Interface
LCD module include:
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MAIN LCD: 128*128, 65,000 Color STN LCD
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SUB LCD: 96*64, Mono
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LCD Backlight: White LED illumination
Camera module include:
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Camera : 0.3M Pixel ( VGA Camera )
MAIN BOARD AND FPCB is connected by 40pin connector. FPCB have two connectors , both
connectors have 40pins. FPCB and MAIN BOARD is connected by 40 pin connector. LCD module is
connect by 40pin connector .
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Summary of Contents for MG220
Page 1: ...Date May 2006 Issue 1 0 Service Manual MG220 Service Manual Model MG220 Z 3 X B O X C O M ...
Page 3: ... 2 Z 3 X B O X C O M ...
Page 5: ...Z 3 X B O X C O M ...
Page 32: ...3 H W Circuit Description 31 Figure 14 Power Supply Scheme Z 3 X B O X C O M ...
Page 46: ...4 TROUBLE SHOOTING 45 4 TROUBLE SHOOTING 4 1 Main Components Placement Z 3 X B O X C O M ...
Page 93: ...5 DOWNLOAD 92 5 2 3 Configuration Setting C GSMULTI Model MG220 dll Z 3 X B O X C O M ...
Page 94: ...5 DOWNLOAD 93 5 2 4 Press Start Button Z 3 X B O X C O M ...
Page 95: ...5 DOWNLOAD 94 5 2 5 After Start Button Which Stand by condition Z 3 X B O X C O M ...
Page 96: ...5 DOWNLOAD 95 5 2 6 SW downloading Condition MG220 Z 3 X B O X C O M ...
Page 97: ...5 DOWNLOAD 96 5 2 7 SW downloading END Condition Z 3 X B O X C O M ...
Page 99: ...6 SERVICE AND CALIBRATION 98 4 Click on CALIBRATION START button Z 3 X B O X C O M ...
Page 108: ... 107 8 pcb layout Z 3 X B O X C O M ...
Page 109: ... 108 8 pcb layout Z 3 X B O X C O M ...
Page 113: ... 112 Z 3 X B O X C O M ...
Page 129: ...Note Z 3 X B O X C O M ...
Page 130: ...Note Z 3 X B O X C O M ...