LG L240 Service Manual page 24

I/O # Net Name
I/O (1) DPD1
I/O (2)
I/O (3) DP_IO_ON
I/O (4) USB_BOOT_SEL
I/O(5) FOLDER_2
I/O (6) DPD0
I/O (7) LCD_BL_EN
I/O (8) BT_NRST
I/O (9) KEY_LED_EN
I/O (10) E_MA0
I/O (13) HANDFREE
I/O (16) PWROK
I/O (17) BOOT_SEL
I/O (18) E_MA1
I/O(19) NFCS_1
I/O (21) DP_PWON
I/O (23) MINT
I/O(32) RESET_B
I/O(46) HOOKDET
I/O (47) MOD_LED
I/O (63) SPK_EN
Note 1 : LCD Back Light Control
LCD B/L
On
Dimming
Off
Resource
I/O
State
O GPIO
I Sysboot
O GPIO
I Sysboot
I GPIO
I GPIO
O GPIO
O GPIO
O GPIO
O GPIO
O GPIO
I Sysboot
I GPIO
O GPIO
O NFCS
O GPIO
I GPIO
O GPIO
I GPIO
O GPIO
O GPIO
<Table.3> GPIO Map
LCD_DIMCTRL1
High
High
Low
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3. Circuit Description
Inactive
State
LOW
HIGH
HIGH
LOW (Giant Plus) HIGH (Nanya)
LOW
LOW
LOW
LOW (LCD B/L Of f ) HIGH (LCD B/L On)
LOW
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
LOW
HIGH
LOW
LOW
LOW
LCD_DIMCTRL2
High
Low
Don't care
Active
State
LOW
LOW
LOW
HIGH
LOW
HIGH
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
LOW
HIGH
HIGH
LOW
HIGH
HIGH
HIGH