LG U310 Service Manual page 147

7. Circuit Diagram
FOLDER_SENSE
U600
R601
A3212EELLT-T
VREG_MSMP_2.7V
VDD
62
OUT
C600 C601
0.1u 10p
VREG_MSMP_2.7V
RA600
R606
10K
HOT601
10K
KEY_ROW(0)
1
1
KEY_ROW(1)
4
4
KEY_ROW(2)
7
7
KEY_ROW(3)
HOT604
KEY_COL(0) HOT4
KEY_ROW(4)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
KEY_ROW(4)
KEY_ROW(3)
KEY_ROW(2)
KEY_ROW(1)
KEY_ROW(0)
KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)
DAUGHTER B-TO-B
G1
G2
CN601
1 20
TCXO_OUT CAM_SENSE
2 19
3 18
V_BACK_UP
4 17
VREG_BT_2.85V VREG_MSMP_2.7V
5 16
6 15
BT_SBST BT_TX_RX_N
7 14
BT_SBCK BT_DATA
8 13
BT_SBDT
9 12
10 11
BT_CLK
KEY
VREG_LCD_2.8V
HOT602 HOT603 CLR MENU
EBI2_DATA(0)
CLR MENU
EBI2_DATA(1)
EBI2_DATA(2)
2 3 LEFT UP
EBI2_DATA(3)
2 3 LEFT UP
5 6 OK RIGHT
5 6 OK RIGHT EBI2_DATA(4)
EBI2_DATA(5)
EBI2_DATA(6)
8 9 SND SEARCH
EBI2_DATA(7)
8 9 SND
SEARCH
0 HOT605 DN BACK
LCD_MAKER_ID
0 HOT5 DN BACK +VPWR
OLED_EN
KEY_COL(6)
WLED_PWR
WLED_PWR
SPK-
SPK+
KEY_BACK_LIGHT
R608
+VPWR
0
R610 R611
LD601 LD602
24 24
LEPBS14IG LEPBS14IG
R613 R614
LD604 LD605
24 24
LEPBS14IG LEPBS14IG
R616 R617
LD607 LD608
24 24
LEPBS14IG LEPBS14IG
R619 R620
LD610 LD611
24 24
LEPBS14IG LEPBS14IG
R621 R622
LD612 LD613
24 24
LEPBS14IG LEPBS14IG
R623
LD614
24
LEPBS14IG
ON_SW
END
D600 VOL UP KEY_ROW(2)
ON_SW_N END
RB521S-30 PRSB6.8C
VOL DN KEY_ROW(1)
PRSB6.8C
CAM
KEY_ROW(0)
PRSB6.8C
SIDE_KEY_COL(5)
PM_ON_SW_N
LCD_CONNECTOR
UCLAMP0501H_TCT
INSTPAR
ZD600
C603
0.1u
FL601 EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1
2 8
INOUT_A2 INOUT_B2
3 7
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4
CN602
51 52
1 50
2 49
3 48
FL603 EVRC14S03Q030050R
4 47
1 9 5 46
INOUT_A1 INOUT_B1
2 8 6 45
INOUT_A2 INOUT_B2
3 7 7 44
INOUT_A3 INOUT_B3
4 6 8 43
INOUT_A4 INOUT_B4
9 42
10 41
11 40
12 39
R607
13 38
14 37
100K
15 36
16 35
17 34
18 33
19 32
20 31
21 30
22 29
23 28
KEY_ROW(1)
24 27
KEY_ROW(2)
25 26
KEY_ROW(3)
53 54
AXT350164
R609
LD600
24
LEPBS14IG
R612
LD603
24
LEPBS14IG
R615
LD606
24
LEPBS14IG
R618
LD609
24
LEPBS14IG
KYPD_BACKLIGHT
- 148 -
SIDE_KEY
R600
100ohm 4
3
VA600 2
R602
1
CN600
100ohm
R604
VA602
KEY_COL(5) SIDE_KEY_COL(5)
100ohm
R605
100ohm
VA603
PRSB6.8C VA604
LCD_IF_MODE
LCD_RESET_N
VA605 C602
220p
EVLC14S02050
FL600 EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1 LCD_CS_N
2 8
INOUT_A2 INOUT_B2 LCD_ADS
3 7
INOUT_A3 INOUT_B3 EBI2_WE_N
4 6
INOUT_A4 INOUT_B4 EBI2_OE_N
FL602 EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1 EBI2_DATA(8)
2 8
INOUT_A2 INOUT_B2 EBI2_DATA(9)
3 7
INOUT_A3 INOUT_B3 EBI2_DATA(10)
4 6
EBI2_DATA(11)
INOUT_A4 INOUT_B4
FL604 EVRC14S03Q030050R
1 9
INOUT_A1 INOUT_B1 EBI2_DATA(12)
2 8
INOUT_A2 INOUT_B2 EBI2_DATA(13)
3 7
EBI2_DATA(14)
INOUT_A3 INOUT_B3
4 6
INOUT_A4 INOUT_B4 EBI2_DATA(15)
OLED_CS_N
L600 56nH
MOTOR_PWR-
WLED_1
WLED_2
WLED_3
D602
+VPWR
RB521S-30
U310
KEY & LCD CONN
U310_REV_1.1
6/6