LG CG225 Service Manual page 35

3. H/W Circuit Description
3.5.9. Switch On/Off
CG225 Power State : Defined 4cases as follow
→ Power-ON : mobile is powered by main battery or backup battery.
→ Power-OFF : mobile isn't any battery.
→ Switch-ON : mobile is powered and waken up from switch-off state.
→ 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.
→ PWR-ON pushed after a debouncing time of 30ms.
→ ON_REMOTE : After debouncing, when a falling edge is detected on RPWON pin.
→ IT_WAKE_UP : When a rising edge is detected on RTC_ALARM pin.
→ CHARGER_IC :When a charger voltage is above VBAT+0.4V on VCHG.
3.5.10. Memories
CG225 using 128Mbit Flash + 64Mbit SRAM with 16 bit parallel data bus thru ADD01 ~ ADD22.
3.5.11. Display & FPCB Interface
LCD module include:
→ MAIN LCD: 128*128, 65,000 Color STN LCD
→ SUB LCD: 96*64, Mono
→ LCD Backlight: White LED illumination
Camera module include:
→ Camera : 0.3M Pixel ( VGA Camera )
MAIN BOARD AND FPCB is connected by 60pin connector. FPCB have two connectors , both
connectors has 60 & 40pins. FPCB and MAIN BOARD is connected by 60 pin connector. LCD module
is connect by 40pin connector .
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