Key Matrix - Samsung GT-S3850 Service Manual

Level 3 Repair

KEY MATRIX

Hold & Power ON Key
1 2
ONKEY_N
3 4 5 6 7
TAC_HOLD
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
R407 R406 R405
C405 C404 L415
C409
L400 R410 R413
C401
L404
R402
L407
R417 R414
HEA501
SIDE KEY
1
KEY_COL(0)
3 4 5 6
1
KEY_COL(1)
3 4 56
KEY_COL(0 ) KEY_COL(1)
SEND
MENU
VOL_DOWN
VOL_UP
END
C510
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FRONT KEY
KEY_COL(1)
2
KEY_ROW(1)
7
KEY_COL(0)
TAC_UP
2
KEY_ROW(1)
7 V601 C604
TAC_DN
L412
C423
R416
TP500
SPK400
D401 C424
R419
C421
C425
SPK401
R418
D402
C420
R507
R508
TP_CE_ONE_NAND
TP_OE_N
TP_F_ADV_N
UME200
8-20
L600 L601
2 1
DOME_KEY_SEND
L602 L603
2 1
DOME_KEY_MENU
L605
L604
2 1
DOME_KEY_END
TAC_U
C426
D500
L501
TAC_D
C500
C505
KEY_ROW(0)
KEY_ROW(2)
C610