TCL 28D2900, Service Manual

Page: 21 / 28

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Title
Number Revision Size
A4
Date: 2015/12/17 Sheet of
File: C:\Users\..\TV#05_S2T512.SchDoc Drawn By:
YPBPR1_GREF
VGA_REF
AV_REF
YPBPR2_GREF
AUX_PWROK
SPI_CLK
3V3_STB
GND GND
GND
Crystal Circuit
HW Trap
C4
NC/1uF-0402-X5R-±20%-10V
R11
NC/10Kohm-0402-±5%-1/16W
GND
Cload: 16pF
XTALI
XTALO
C5
33pF-0402-NPO-±5%-50V
C6
33pF-0402-NPO-±5%-50V
Y1
24.576MHz-±30PPM-20PF-HC-49S-SMD-JWT
R9
1Kohm-0402-±5%-1/16W
C28
0.047uF-0402-X7R-±10%-16V
C32
0.047uF-0402-X7R-±10%-16V
R25
68ohm-0402-±5%-1/16W
R28
68ohm-0402-±5%-1/16W
C29
0.047uF-0402-X7R-±10%-16V
R26
68ohm-0402-±5%-1/16W
R29
68ohm-0402-±5%-1/16W
3V3_M
M_SDA
M_SCL M_SCL/
M_SDA/ RF5
100ohm-0402-±5%-1/16W
RF6
100ohm-0402-±5%-1/16W
RF4
4K7ohm-0402-±5%-1/16W
RF3
4K7ohm-0402-±5%-1/16W
CF1
NC/22pF-0402-NPO-±5%-50V
CF2 NC/22pF-0402-NPO-±5%-50V
GND
R27
10Kohm-0402-±5%-1/16W
C31
0.1uF-0402-X7R-±10%-16V
GND
3V3_STB
SPI_CS0_N
FLASH_SPI_DI
SPI_CLK
SPI_DO
IR
5V_STB
IR_DAT
CK6
27pF-0402-NPO-±5%-50V
GND
RK18
4K7ohm-0402-±5%-1/16W
RK19
1Kohm-0402-±5%-1/16W
GND
3V3_STB
MUTE_AMP
AUX_PWROK
SPDIFO
PWM0
ARC_DET
SPI_DO
SPI_CS0_N
FLASH_SPI_DI
SPI_CLK
IR_DAT
XTALO
XTALI
POW_EN
KEYPAD0
R
X
E
4
_
P
R
X
E
4
_
N
R
X
E
3
_
N
R
X
E
3
_
P
R
X
E
C
_
P
R
X
E
C
_
N
RXE2_P
RXE2_N
RXE1_P
RXE1_N
RXE0_N
RXE0_P
RXO4_N
RXO4_P
RXO3_P
RXO3_N
RXOC_N
RXOC_P
RXO2_P
RXO2_N
RXO1_P
RXO1_N
RXO0_P
T
S
O
_
C
L
K
T
S
O
_
S
Y
N
C
T
S
O
_
V
A
L
C
I_
D
2
C
I_
D
1
C
I_
A
4
/T
S
O
_
D
7
C
I_
A
2
C
I_
A
1
C
I_
A
3
C
I_
D
0
C
I_
A
0
C
I_
A
7
/T
S
O
_
D
4
C
I_
A
5
/T
S
O
_
D
6
C
I_
A
6
/T
S
O
_
D
5
C
I_
W
A
IT
C
I_
R
S
T
C
I_
A
8
/T
S
O
_
D
3
C
I_
W
E
C
I_
A
9
/T
S
O
_
D
2
C
I_
IR
Q
C
I_
IO
W
R
C
I_
D
7
C
I_
D
5
C
I_
D
6
C
I_
C
E
C
I_
A
1
0
/T
S
O
_
D
1
C
I_
A
1
1
/T
S
O
_
D
0
C
I_
O
E
C
I_
IO
R
D
C
I_
D
3
C
II
N
_
C
D
1
C
I_
D
4
T
S
I_
D
4
T
S
I_
D
5
T
S
I_
D
3
TSI_D7
T
S
I_
D
6
TSI_D0
TSI_D1
TSI_D2
TSI_SYNC
TSI_VAL
TSI_CLK
USB0_DP
USB0_DM
USB1_DP
USB1_DM
S
P
K
_
R
S
P
K
_
L
RXCP_C
RXCM_C
RXM0_C
RXP0_C
RXM1_C
RXP1_C
RXM2_C
RXP2_C
RXCM_B
RXCP_B
RXM0_B
RXP0_B
RXM1_B
RXP1_B
RXP2_B
RXM2_B
R
X
D
0
/V
G
A
_
S
C
L
T
X
D
0
/V
G
A
_
S
D
A
H
S
_
V
G
A
V
S
_
V
G
A
V
G
A
_
R
E
F
V
G
A
_
B
IN
V
G
A
_
G
IN
V
G
A
_
R
IN
S
O
Y
1
_
IN
P
B
1
_
IN
P
R
1
_
IN
Y
1
_
IN
Y
P
B
P
R
1
_
G
R
E
F
S
O
Y
2
_
IN
P
B
2
_
IN
P
R
2
_
IN
Y
P
B
P
R
2
_
G
R
E
F
Y
2
_
IN
C
V
B
S
2
_
IN
C
V
B
S
1
_
IN
A
V
_
R
E
F
SCART_FB
SCART_FS
R
X
C
P
_
A
R
X
C
M
_
A
R
X
M
0
_
A
R
X
P
0
_
A
R
X
P
2
_
A
R
X
M
2
_
A
R
X
M
1
_
A
R
X
P
1
_
A
PANEL_EN
VBG_AU
D
D
R
_
Z
Q
SDA_HDMI_B
SCL_HDMI_B
SDA_HDMI_C
SCL_HDMI_C
SDA_HDMI_A
SCL_HDMI_A
HPD_HDMI_B
HPD_HDMI_C
HDMI_ARC
CEC_HDMI
HPD_HDMI_A
M
_
S
D
A
M
_
S
C
L
D
_
IF
A
G
C
D
IS
E
Q
C
_
O
U
T
V
B
G
_
D
M
L
IF
P
L
IF
N
IF
_
IP
IF
_
Q
P
E
F
U
S
E
H
P
_
D
E
T
KEYPAD1
H
P
_
L
H
P
_
R
BL_ADJ
3V3_STB
3V3_M
AVDD3P3_HDMI
3V3_M
3V3_M 3V3_M
1V0_M
1V5_DDR
AVDD1P0_HDMI
AVDD3P3_MCPLL
3V3_M
3V3_M
1V0_M
1V0_M
1V0_M
1V0_M
1V0_M
1V0_M
3V3_M
3V3_M 3V3_M
1V0_M 1V0_M
1V0_M
1V5_DDR
1V0_M
AVDD3P3_HDMI_AUX_T
3V3_M
AVDD3P3_DM
AVDD1P0_DM
3V3_M
Close to IC
For ESD
R10
NC/10Kohm-0402-±5%-1/16W
C14
4.7uF-0603-X5R-±10%-10V
C27
4.7uF-0603-X5R-±10%-10V
GND
AV_RIN
AV_LIN
SC_LIN/
SC_RIN/
CD_SENSE
DVD_IR
DVD_STB
DVD_DAT
LNB_PWEN
S
C
_
L
O
U
T
/
S
C
_
R
O
U
T
/
MHL_CD_SENSE
LED_R/
LED_G_ON
C33
0.22uF-0402-X5R-±10%-16V
R15
4K7ohm-0402-±5%-1/16W
DVD_EN
S
C
A
R
T
_
V
O
U
T
/
R
1
2
360ohm-0402-±1%-1/16W
RXO0_N
C30
0.1uF-0402-X5R-±20%-16V
LNB_PW_13V/18V_SEL
C13
NC/1uF-0402-X5R-±20%-16V
MUX_VSW1
IVDD1P0
32
KEY0
35
KEY1
36
OVDD3P3_AUX
37
OSCI
38
OSCO
39
PWRSW
40
CD_SENSE
157
AUXOK
54
U
A
R
T
A
_
T
X
/V
G
A
_
S
D
A
7
3
U
A
R
T
A
_
R
X
/V
G
A
_
S
C
L
7
4
V
G
A
_
H
S
7
5
V
G
A
_
V
S
7
6
HDMI_ARC
159
HDMI_CEC
158
IVDD1P0
34
H
D
M
IA
_
R
X
C
N
1
2
0
H
D
M
IA
_
R
X
C
P
1
2
1
HDMIA_HPD/CBUSA
149
H
D
M
IA
_
R
X
0
N
1
2
2
H
D
M
IA
_
R
X
0
P
1
2
3
HDMIA_SCL
156
H
D
M
IA
_
R
X
1
N
1
2
4
H
D
M
IA
_
R
X
1
P
1
2
5
HDMIA_SDA/5V_DCT
155
H
D
M
IA
_
R
X
2
N
1
2
6
H
D
M
IA
_
R
X
2
P
1
2
7
A
V
D
D
3
P
3
_
H
D
M
I
1
2
8
HDMIB_HPD/CBUSB
148
HDMIB_RXCN
129
HDMIB_RXCP
130
AVDD1P0_HDMI
145
HDMIB_RX0N
131
HDMIB_RX0P
132
HDMIB_SDA/5V_DCT
153
HDMIB_RX1N
133
HDMIB_RX1P
134
HDMIB_SCL
154
HDMIB_RX2N
135
HDMIB_RX2P
136
HDMIC_HPD
147
HDMIC_RXCN
137
HDMIC_RXCP
138
HDMIC_RX0N
139
HDMIC_RX0P
140
HDMIC_SDA/5V_DCT
151
HDMIC_RX1N
141
HDMIC_RX1P
142
HDMIC_SCL
152
HDMIC_RX2N
143
HDMIC_RX2P
144
OVDD3P3
178
A
V
D
D
3
P
3
_
B
G
P
7
8
Y
P
P
_
G
2
9
2
Y
P
P
2
_
R
E
F
9
0
Y
P
P
_
B
2
9
3
Y
P
P
_
R
2
9
4
Y
P
P
_
S
O
G
1
8
4
Y
P
P
_
G
1
8
5
Y
P
P
1
_
R
E
F
8
6
Y
P
P
_
B
1
8
7
Y
P
P
_
R
1
8
8
A
V
D
D
3
P
3
_
H
S
A
D
C
7
9
A
V
_
Y
1
9
6
A
V
_
Y
2
9
5
A
V
_
R
E
F
9
7
IV
D
D
1
P
0
9
8
I2
C
M
_
S
C
L
/G
P
IO
5
(P
M
)
1
1
5
I2
C
M
_
S
D
A
/G
P
IO
1
5
(P
M
)
1
1
4
VBG_AU
57
LINEIN_L3
59
LINEIN_R3
60
LINEIN_L2
61
LINEIN_R2
62
LINEIN_L1
63
LINEIN_R1
64
A
V
D
D
3
P
3
_
L
V
D
S
2
5
6
LVA_TXP3
3
LVA_TXN3
4
LVA_CKP
1
LVA_CKN
2
L
V
A
_
T
X
P
2
2
5
4
L
V
A
_
T
X
N
2
2
5
5
L
V
A
_
T
X
P
1
2
5
2
L
V
A
_
T
X
N
1
2
5
3
L
V
A
_
T
X
P
0
2
5
0
L
V
A
_
T
X
N
0
2
5
1
IVDD1P0
177
SPI_CSN0
47
SPI_DI
46
SPI_CKO/ENTEST
45
AUX_I2CM_SDA1
48
SPI_DO
44
SPDIFO/ENDEBUG
53
IR
43
PWM0/GPIO27(PM)
52
LRSYNC/SPDIF_IN
50
AUX_I2CM_SCL1
49
SPK_MUTE/GPIO6(PM)
51
USB_DP0
173
USB_DM0
172
CATS_DAT2
186
LCD_EN/GPIO43(PM)
55
IF
G
A
IN
1
1
3
IV
D
D
1
P
0
1
1
9
A
V
D
D
3
P
3
_
D
M
1
0
8
T
2
_
F
E
F
/I
2
S
_
S
D
0
1
1
1
D
M
V
IN
P
1
0
7
D
M
V
IN
N
1
0
6
S
P
K
_
R
6
9
S
P
K
_
L
6
8
L
IN
E
O
U
T
_
R
6
7
L
IN
E
O
U
T
_
L
6
6
A
V
D
D
3
P
3
_
A
U
6
5
VDDQ1P5_DDR
168
IV
D
D
1
P
0
7
7
DDR_CMPP
166
VDDQ1P5_DDR
169
VDD1P5_DDR
167
O
V
D
D
3
P
3
2
2
5
T
S
_
F
R
A
M
E
2
3
0
T
S
_
V
A
L
ID
2
2
9
T
S
_
C
L
K
2
2
8
C
I_
D
A
T
2
2
2
7
IVDD1P0
164
LVB_TXN4
18
LVB_TXP4
17
LVB_TXN3
16
LVB_TXP3
15
LVB_CKN
14
LVB_CKP
13
LVB_TXN2
12
LVB_TXP2
11
LVB_TXN1
10
LVB_TXP1
9
LVB_TXN0
8
LVB_TXP0
7
LVA_TXP4
5
LVA_TXN4
6
V
G
A
_
B
0
8
0
V
G
A
_
G
0
8
1
V
G
A
_
R
E
F
8
2
V
G
A
_
R
0
8
3
A
V
D
D
1
P
0
_
H
S
A
D
C
8
9
Y
P
P
_
S
O
G
2
9
1
KEY2
19
KEY3
20
A
V
D
D
3
P
3
_
A
T
V
1
0
0
A
T
V
_
C
V
B
S
O
9
9
D
M
V
IN
P
_
I
1
0
1
D
M
V
IN
N
_
I
1
0
2
D
M
V
IN
P
_
Q
1
0
5
D
M
V
IN
N
_
Q
1
0
4
R
F
G
A
IN
/I
2
S
_
W
S
1
1
2
D
IS
E
Q
_
I/
H
P
_
D
E
T
1
1
6
D
IS
E
Q
_
O
1
1
7
DDR_VREF
165
A
V
D
D
3
P
3
_
M
C
P
L
L
2
4
3
AVDD3P3_HDMI_AUX_T
150
USB_DP1
175
USB_DM1
174
IVDD1P0
163
IV
D
D
1
P
0
2
4
2
E
F
U
S
E
_
G
N
D
2
4
1
C
I_
D
A
T
1
2
2
6
C
I_
A
D
D
0
2
2
4
C
I_
D
A
T
0
2
2
3
C
I_
A
D
D
1
2
2
2
C
I_
A
D
D
2
2
2
1
C
I_
A
D
D
3
2
2
0
C
I_
A
D
D
4
/T
S
_
D
A
T
7
2
1
9
C
I_
W
A
IT
_
N
2
1
8
C
I_
R
E
S
E
T
2
1
7
C
I_
A
D
D
5
/T
S
_
D
A
T
6
2
1
6
C
I_
A
D
D
6
/T
S
_
D
A
T
5
2
1
5
C
I_
A
D
D
7
/T
S
_
D
A
T
4
2
1
4
C
I_
IR
Q
_
N
2
1
3
C
I_
W
E
_
N
2
1
2
C
I_
A
D
D
8
/T
S
_
D
A
T
3
2
1
1
C
I_
A
D
D
9
/T
S
_
D
A
T
2
2
1
0
C
I_
IO
W
R
_
N
2
0
9
C
I_
IO
R
D
_
N
2
0
7
C
I_
O
E
_
N
2
0
6
C
I_
A
D
D
1
0
/T
S
_
D
A
T
1
2
0
5
C
I_
A
D
D
1
1
/T
S
_
D
A
T
0
2
0
4
C
I_
C
E
1
_
N
2
0
3
C
I_
D
A
T
6
2
0
2
C
I_
D
A
T
7
2
0
1
C
I_
D
A
T
5
2
0
0
O
V
D
D
3
P
3
2
0
8
C
I_
D
A
T
4
1
9
9
C
I_
C
D
1
_
N
1
9
8
C
I_
D
A
T
3
1
9
7
IVDD1P0
171
CATS_DAT1
187
CATS_VALID
190
CATS_FRAME
189
CATS_DAT0
188
C
A
T
S
_
D
A
T
6
1
9
3
CATS_DAT7
192
CATS_CLK
191
C
A
T
S
_
D
A
T
3
1
9
6
C
A
T
S
_
D
A
T
4
1
9
5
C
A
T
S
_
D
A
T
5
1
9
4
BL_ON/GPIO30(PM)
41
BL_ADJ/GPIO35(PM)
42
C
K
_
M
A
2
4
4
IV
D
D
1
P
0
2
4
7
V
D
D
Q
1
P
5
_
D
D
R
2
4
5
V
D
D
Q
1
P
5
_
D
D
R
2
4
6
V
D
D
1
P
5
_
D
D
R
2
4
9
VSS1P5_DDR
33
IVDD1P0
162
IVDD1P0
161
N
F
_
D
Q
S
/I
2
S
_
M
C
K
2
4
0
N
F
_
IO
7
2
3
9
N
F
_
IO
6
2
3
8
N
F
_
IO
5
2
3
7
N
F
_
IO
4
2
3
6
N
F
_
IO
3
2
3
5
N
F
_
IO
2
2
3
4
N
F
_
IO
1
2
3
3
N
F
_
IO
0
2
3
2
N
F
_
W
P
N
2
3
1
NF_RBN
185
NF_REN
184
NF_WEN
183
NF_ALE
182
NF_CLE
181
NF_CEN1
180
NF_CEN0
179
AVDD3P3_USB
176
IVDD1P0
170
IVDD_SEL
160
H
P
_
R
7
2
O
V
D
D
3
P
3
1
1
8
V
B
G
_
D
M
1
1
0
A
V
S
S
3
P
3
_
D
M
1
0
9
A
V
D
D
3
P
3
H
P
_
A
U
7
1
H
P
_
L
7
0
AVSS3P3_AU
58
IVDD1P0
56
OVDD3P3
31
RMIIMDIO/SW0
21
RMIIMDC
22
RMII50MCK
23
RMIIRXER/I2S_SCK
24
RMIIRXD0/DVD_AUTO
25
RMIIRXD1
26
RMIIRXDV/SPDIF_IN
27
RMIITXEN/DVD ONOFF
28
RMIITXD0/DVD_IR
29
RMIITXD1/DVD_STB
30
D
D
R
_
Z
Q
2
4
8
VBUS_EN
146
A
V
D
D
1
P
0
_
D
M
1
0
3
LVDS
L
V
D
S
P
A
D
2
5
7
CI
U
S
B
H
D
M
I
RGB - CVBS Audio Out
A
u
d
io
I
n
IF HDMI
S2T512
C
I
U1
客供主芯片
,IC Main Chip,SMD,SPV9206B,TCL,Sunplus
GND
PC/DVD-AR
PC/DVD-AL
CS#
1
SO
2
WP#
3
Vss
4
SI
5
SCLK
6
HOLD#
7
Vcc
8
U2
SPI FLASH
芯片
,IC SPI FLASH,64Mb,SOIC8,SMD,GD25Q64CSIG,GigaDevice
R1 330ohm-0402-±5%-1/16W
IF
_
IN
IF
_
Q
N
C23
NC/22pF-0402-NPO-±5%-50V
C24
NC/22pF-0402-NPO-±5%-50V
C25
NC/22pF-0402-NPO-±5%-50V
C26
NC/22pF-0402-NPO-±5%-50V
GND
GND
C1
15pF-0402-NPO-±5%-50V
GND
DVD5V_EN
SPDIFIN
3V3_IR
GND
GND
RK23
22ohm-0402-±5%-1/16W
CK8
1000pF-0402-X7R-±10%-50V
3V3_STB
LED_R/ RK25
1Kohm-0402-±5%-1/16W
IR
KEYPAD0 RK26
1Kohm-0402-±5%-1/16W
3V3_STB
K0/AD
CK7
1000pF-0402-X7R-±10%-50V
CK19
NC/1000pF-0402-X7R-±10%-50V
GND
CK9
1000pF-0402-X7R-±10%-50V
LED_R
RK24 4K7ohm-0402-±1%-1/16W
DK4
NC/SFI0402-240E-2R5PP-LF
DK3
SFI0402-240E-2R5PP-LF
RK34
4K7ohm-0402-±1%-1/16W
3V3_STB
GND
KEYPAD1
CK10
NC/1000pF-0402-X7R-±10%-50V
3
2
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CNF2
NC/196161-30041-3
GND
GND
C12
NC/0.1uF-0402-X5R-±20%-16V
GND
RPA2
NC/100ohm-0402-±5%-1/16W
GND
GND
RPA3
0ohm-0402-±5%-1/16W
3V3_STB
GND
GND
GND
GND
GND
GND
GND
GND
VCC_PANEL
VCC_PANEL
VCC_PANEL
VCC_PANEL
RXE0_N
RXE0_P
RXE1_N
RXE1_P
RXE2_N
RXE2_P
RXEC_N
RXEC_P
RXE3_N
RXE3_P
LVDS_SEL
3
2
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CNF3
NC/196161-30041-3
GND
GND
GND
GND
GND
RXO0_N
RXO0_P
RXO1_N
RXO1_P
RXO2_N
RXO2_P
RXOC_N
RXOC_P
RXO3_N
RXO3_P
VCC_PANEL
RPA1
NC/0ohm-0402-±5%-1/16W
GND
RXE3_N
RXE3_P
RXEC_N
RXEC_P
RXE2_N
RXE2_P
RXE1_N
RXE1_P
RXE0_N
RXE0_P
5
3
5
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
CNF1
板接插座
,SMD connector,51Pin,D0.5,SMD,40-42211-05111RHF,DEREN
RXO2_N
RXO0_N
RXO1_N
RXO2_P
RXO1_P
RXO0_P
GND
GND
GND
RXE2_N
RXE1_N
RXE0_N
RXE3_N
RXEC_N
RXE3_P
RXE1_P
RXE0_P
RXE2_P
RXEC_P
GND
GND
GND
LVDS_SEL
GND
GND
RXO4_N
RXO4_P
RXE4_N
RXE4_P
RXOC_N
RXOC_P
RXO3_N
RXO3_P
VCC_PANEL
M_SCL/
M_SDA/
RXE2_N
RXE1_N
RXE0_N
RXE3_N
RXEC_N
RXO2_N
RXO3_N
RXO0_N
RXO1_N
RXE3_P
RXE1_P
RXE0_P
RXE2_P
RXEC_P
RXO3_P
RXO2_P
RXO1_P
RXO0_P
RXE4_N RXE4_P
O0N TEST O0P TEST
O1P TEST O1N TEST
O2N TEST
O3N TEST
E0N TEST
E1N TEST
E2N TEST
E3N TEST
ECN TEST
O2P TEST
O3P TEST
E0P TEST
E1P TEST
E2P TEST
ECP TEST
E3P TEST
E4P TEST E4N TEST
O4N TEST O4P TEST RXO4_N RXO4_P
OCN TEST OCP TEST RXOC_N RXOC_P
1
2
3
4
6
5
7
8
9
10
CNK18
10PIN-2.0-D-H-G-
带扣
-J
GND
GND
LOUT+
LOUT-
ROUT-
ROUT+
BL_ADIM