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TCL L50B2800 Service Manual page 31

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SPI/NAND FLASH
3_3VSB
WP
DO
CS
T
R502
T
T
10K/NC
U500
1
SPI_CSN
CS#
2
SPI_SDO
DO
HOLD#
3
SPI_WP
WP#
C501
4
VSS
R503
EN25B32
NC/4K7
0.1U/NC
13-W25Q32-BVB
GND
3_3V
U501
MT29F1G08A
C516
0.1U
1
NC/RST
NC24
2
NC
NC23
3
C517
NC1
NC22
4
2U2
NC2
NC21
5
NC3
I/O7
6
R/B2
I/O6
NAND-RBZ
7
R/B1
I/O5
NAND-REZ
8
GND
RE
I/O4
NAND-CEZ
9
CE1
NC20
NAND-CEZ1
10
CE2
NC19
11
NC4
PRE
12
VCC
VCC1
13
VSS
VSS1
14
NC5
NC18
15
NC6
NC17
NAND-CLE
16
CLE
NC16
NAND-ALE
17
ALE
I/O3
NAND-WEZ
18
WE
I/O2
NAND-WPZ
19
WP
I/O1
20
NC7
I/O0
21
NC8
NC15
22
NC9
NC14
23
NC10
NC13
24
NC11
NC12
R549
NC/10K
GND
R504
C502
NC/10K
NC/0.1U
8
VCC
GND
7
6
SPI_SCK
CLK
5
SPI_SDI
DI
T
T
SCK
SDI
R519 22R/NC
NAND-DQS
NAND_DQS
48
NAND-RBZ
R520
22R
NAND_RBZ
47
C520
46
33P
NAND-REZ
R521
22R
NAND_REZ
45
NAND-D7
44
R522
22R
3_3V
NAND-CEZ
NAND_CEZ
NAND-D6
43
R523
22R
NAND-D5
NAND-CEZ1
42
NAND_CEZ1
NAND-D4
41
R524
22R
NAND-CLE
NAND_CLE
40
R518
R525
22R
39
NAND-ALE
NAND_ALE
C519
NC/0R
38
33P
R526
22R
37
NAND-WEZ
NAND_WEZ
36
R527
22R
NAND-DQS
NAND-WPZ
NAND_WPZ
35
34
33
32
NAND-D3
31
NAND-D2
R528
22R
30
NAND-D1
NAND-D7
NAND_D7
29
NAND-D0
R529
22R
28
NAND-D6
NAND_D6
27
R530
22R
NAND-D5
NAND_D5
26
25
NAND-D4
R531
22R
NAND_D4
R532
22R
NAND-D3
NAND_D3
R533
22R
NAND_D2
NAND-D2
R534
22R
NAND-D1
NAND_D1
R535
22R
NAND-D0
NAND_D0
GND
3_3VSB
3
1
2
R506
D502
0BAV99
22K
E
R507 47K
B
Q501
C
BT3906
C504
10U
GND
PANEL
TXO0+
TXO1+
TXO2+
PANEL_VCC
R598
Q505
TXOC+
T
12V
0R
PMV65XP
R596
PANEL_VCC
5V
TXO3+
0R/NC
TXO4+
R543
33K
R544
C
4K7
Q506
B
PANEL_ON
BT3904
TXE0+
E
LO =>Panel OFF
R545
TXE1+
HI =>Panel ON
3K3
R546
TXE2+
2K7
TXEC+
TXE3+
GND
TXE4+
GND
MAIN_POWER
3_3VSB
MCU_RESET
T
C503
2U2
Q502
E
GND
B
R511
MCU_RESET
3K3
C
BT3906
Reset=H
Normal=L
R516
C505
27K
NC/0.1U
NC
D501
1
2
GND
BAT54C
3
If 24v<17.8V then reset_H
STB_RST
If 12v<8.3V then reset_H
Normal=H
Close to SOC
Standby=L
GND
P500
39
40
TXO0-
37
38
TXO1-
35
36
P501
1
TXO2-
33
34
1
GND
2
NC
2
3
TXOC-
NC
31
32
3
4
4
NC
5
TXO3-
29
30
5
GND
6
6
TXE3+
7
27
28
TXO4-
7
TXE3-
8
8
GND
9
25
26
9
TXEC+
10
10
TXEC-
11
11
GND
23
24
12
12
TXE2+
13
LVDS_SEL
13
TXE2-
21
22
14
14
GND
15
TXE0-
15
TXE1+
19
20
16
T
16
SEL_LVDS
TXE1-
17
TXE1-
GND
17
18
17
18
TXE0+
18
19
TXE2-
TXE0-
15
16
19
20
20
GND
21
13
14
TXEC-
21
NC
22
LVDS_SEL
22
GND
23
11
12
TXE3-
23
NC
24
24
GND
25
9
10
TXE4-
25
GND
26
26
NC
27
27
PANEL_VCC
7
8
28
28
PANEL_VCC
29
GND6
PANEL_VCC
5
6
29
30
30
PANEL_VCC
3
4
GND
PANEL_VCC1
1
2
PANEL_VCC
C530
0.1U
GND
TXE3+
TXE3-
TXEC+
TXEC-
TXE2+
TXE2-
TXE1+
TXE1-
TXE0+
TXE0-
LVDS_SEL
R585
100R
GND
PANEL_VCC

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