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TP406
TP407
R414
R415
KEY_ROW(0:3)
KEY_COL(4:7)
KEY_COL(4)
KEY_COL(5)
KEY_COL(6)
KEY_COL(7)
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Only for training and service purposes
C418
RA400
U404
R414
A6
Wake_INP6
B5
Wake_INP7
A5
K_Out4
U404
B4
K_Out5
LM8333GGR8_NOPB
A4
K_Out6
A3
K_Out7
B3
Gen_IO_2
A2
Gen_IO_3
AP_VDD_IO_2.7V
Schematic of key sense part
- 117 -
4. TROUBLE SHOOTING
AP_VDD_IO_2.7V
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
AP_VDD_IO_2.7V
R415
R414
R415
3.3K
3.3K
I2CSCL1
I2CSDA1
KEY_COL(3)
G5
K_Out3
KEY_COL(2)
G4
K_Out2
KEY_COL(1)
F4
K_Out1
KEY_COL(0)
G3
K_Out0
F3
_RESET
G2
TP406
Int_Rx
G1
WD_Out
F2
Int_Tx
TP407
C418
C419
TP407
0.1u
0.1u
C418
RA400
SW400
SW403
SW406
SW409
KEY_COL(3:0)
KEYCODER_RSTN
KEYCODER_INT
TP406
LGE Internal Use Only
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