TCL LCD20B66-BE1 Schematic

5

4

3

2

1

J12

1
2
3
4
5
6
7
8
9

10

D D

CVBS2

CVBS2

R104 NC

GND

GND

CVBS1

CVBS1

R106 NC

GND

GND

SVIDEO_C

SVIDEO_C

R109 NC

GND GND

C C

SVIDEO_Y

TV_IN

B B

GND

SVIDEO_Y

R111 75R 1%

GND

TV_IN

R113 NC

GND GND

GND

DECRIN DEC_VS
DECGIN DEC_HS
DECBIN
DEC_FB

R132 2K2

R133 2K2

R134 2K2

R131 2K2

CON10

R103

L30 2.7uH

120

C119

4.7pF

R105

120

C126

4.7pF

R108

C140

4.7pF

R110

C147

4.7pF

R112

C157

4.7pF

15pF

GND

C120

330pF

GND

L34 2.7uH

C127

330pF

GND

L35 2.7uH

120

L36 2.7uH

120

GNDGND

L37 2.7uH

120

+5V

L38

33R FB

C167 0.1uF

GND

R123 2K2
R125 2K2
R126 2K2
R128 1K5

C169

C171

15pF

GND

GND

C170
15pF

GND

A A

C141

330pF

C148

330pF

C158

330pF

GND

L46 2.7uH

R130

6K8

C172 6.8nF

C174 68nF

GND

DECBIN
DECGIN
DECRIN
DEC_FB

FOR TELETEXT

L49 2.7uH

SCART_R

SCART_R

L47 2.7uH

L51 2.7uH

SCART_G

L50 2.7uH

SCART_B

R44
NC

SCART_CVBS/Y

4

SEN

18

RED

2

GREEN

3

BLUE

17

BOX

9

LPF

8

CSYNC

C173 0.1uF

DECODER_VS

DECODER_HS

R99 100R
R100 100R

R107

0

GND

SCART_G

SCART_B

12

VIDEO

VDD

VIN

HIN
SDA
SCL
SDO

RREF

SMS

I2C SEL

VSSA

11

C142

330pF

GND

GND

U16

Z86229

7
13
5
14
15
16

10
6
1

CVBS_OUT

C123 0.1uF

C225 0.1uF

C128 0.1uF
C130 0.1uF

C144 0.1uF

C145 0.1uF
C146 0.1uF
C149

330pF

C154 0.1uF
C155 0.1uF
C156

330pF

GND

C165 0.1uF

R119

C166 560pF

GND

MCSDA
MCSCL

GND

GND

GND

GND

C163 0.1uF

C164

330pF

470R

GND

R127 100R
R129 100R

R135
10K

C121

0.1uF

C224

330pF

C228

330pF

C229

330pF

VIDEO_OUT1

A_3.3V

C122

0.1uF

C226

330pF

GND

C227

330pF

GND

R121 100R

R122 100R

R124 100R

MCSDA

MCSCL

A_1.8V

GND

GND

DECODER_VS

DECODER_HS

33pF

10
11
12
13
14
15
16
17
18
19
20

VBI_INTR

C117

C118

33pF

1

VI_1_B

2

VI_1_C

3

CH1_A33GND

4

CH1_A33VDD

5

CH2_A33VDD

6

CH2_A33GND

7

VI_2_A

8

VI_2_B

9

VI_2_C
CH2_A18GND
CH2_A18VDD
A18VDD_REF
A18GND_REF
CH3_A18VDD
CH3_A18GND
VI_3_A
VI_3_B
VI_3_C
CH4_A33GND
CH4_A33VDD

14.318Mhz

12

80

VI_1_A

X2

R101 100K

DVDD

DGND

XTAL1

XTAL2

C-2/GPIO

FID/GPIO

C_3/GPIO

C_1/GPIO

C_0/GPIO

HS/CS/GPIO

PLL_A18VDD

PLL_A18GND

CH1_A18VDD

CH1_A18GND

VS/VBLK/GPIO

U15

TVP5146PFP

CH4_A33VDD

CH4_A33GND

VI_4_A

CH4_A18GND

CH4_A18VDD

NSUB

TMS

SCL

SDA

INTREQ

DVDD

21222324252627282930313233343536373839

DGND

R120

100R

R102 10K

GND

IOGND

C_5/GPIO

C_4/GPIO

C_7/GPIO/GREEN

PWDN

RESETB

FSS/GPIO

SWS1

C168 0.1uF

61626364656667686970717273747576777879

IOVDD

C_6/GPIO/RED

C_8/GPIO/BLUE

C_9/GPIO/FSO

DGND

IOGND

IOVDD

AVID/GPIO

GLCO/I2CA

IOVDD

IOGND

R115
10K

GND

CVBS2
CVBS1
SVIDEO_Y
TV_IN

R136

22K

R138

R139

33K

60
59
58
57
56
55

DVDD

54

Y_0

53

Y_1

52

Y_2

51

Y_3

50

Y_4

49
48
47

Y_5

46

Y_6

45

Y_7

44

Y_8

43

Y_9

42

DGND

41

DVDD

DATACLK

40

BC848B

1K

Q11

1

R140

1K

D_1.8V

D_3.3V

C129 0.1uF
C131 0.1uF
C132 0.1uF

C143

10P

GND

U17

1

1OE*

2

S1

3

1B4

4

1B3

5

1B2

6

1B1

7

1A

8 9

GND 2A

+5V

SN74CBT3253

GND GND

22R

R137

VIDEO_OUT1

2 3

2OE*

VCC

2B4
2B3
2B2
2B1

S0

RN7

22Rx4

1
2
3
4 5

RN8

1
2
3
4 5

22Rx4

16
15
14
13
12
11
10

DECBIN
DECGIN
DECRIN
DEC_FB

+5V

DECODER_VS

DECODER_HS

TP16

TP17

TP18

+3.3V_DVDD

L32

33R FB

C124

0.1uF

GND GND

L31 33R FB

L33 33R FB

C125

100uF/16V

10V

A_3.3VD_3.3V

D_3.3V A_3.3V

C137

C138

C139

0.1uF

0.1uF

0.1uF

C153

C152

C151

0.1uF

0.1uF

0.1uF

C162

C160

C161

0.1uF

0.1uF

0.1uF

DECCLK

C136

0.1uF

GNDGND

A_1.8V

C150

0.1uF

GND

D_1.8V

C159

0.1uF

C135

C134

C133

0.1uF

0.1uF

0.1uF

YUV0

8

YUV1

7

YUV2

6

YUV3

YUV4

8

YUV5

7

YUV6

6

YUV7

YUV[0..7]

R114 22R

GND

R118 100R

RET_OTHER

R116 100R

R117 100R

MCSDA

MCSCL

SWS0

GND

5

4

3

2

1

5

4

3

2

1

+12V

L12 33R FB

L14 33R FB

D D

C C

C79

C78

C80

0.1uF

470uF/25V

100uF/16V

+5V

L24

33R FB

+5V

L26

33R FB

B B

U9
LM2596S-5.0

1

VIN

VOUT

GND

32456

ADJONTAB

C81

0.1uF

+5V +3.3V_DVDD

L21

33R FB

C95

100uF/16V

GND

C106

C105

0.1uF

100uF/16V

GND

D12

D11

1N4001

1N4001

C112

C111

0.1uF

D9

IN5820

1 2

lt1084-3.3V

U10

TAB

3 2

VIN VOUT

GND/ADJ

1

GND

LT1117-3.3V

U12

3 2

VIN VOUT

GND/ADJ

Sot223

1

GND

U13

LT1117-1.8V

3 2

VIN VOUT

GND/ADJ

Sot223

1

L15

33uH

C82

C83

330uF/16V

330uF/16V

4

GND

4

TAB

4

TAB

100uF/16V

GND

GND

31ohm at 100Mhz Rated Currrent
>=2A

L13 33R FB

L16 33R FB

L17 33R FB

C84

L18 33R FB

0.1uF

L19 33R FB

L20 33R FB

40mA

C94

C93

100uF/16V

0.1uF

10V

GND

C103

100uF/16V

0.1uF

GND

GND

C110

C109

100uF/16V

0.1uF

GND GND

R96

470uF/25V

100

RELA1

4

+12V

C91

Jidian1

C92

0.1u

GNDGND

U11

KIA278R09

VOUT

GND

C97

To-223

324

100uF/16V

10V

GNDGND

BC847c

Q10

C77

J11

0.1u

1
2

GND

D10

C90

1N4148

0.1u

123

GND

1

Vin

SW

R97

10k

R98

1

2 3

C100

GND

0.1uF

CONTROL

+12V

L22

33R FB

C98

C99

0.1uF

100uF/16V

10V

2k2

POWER

GND

+5V

JP1

100uF/16V

C87

C86

C85

0.1uF

330uF/16V

POWER IN

4
3

C88

2
1

C89

0.1u

100P

GND

GND

+9V

C96

0.1uF

+5V

+3.3V_AVDD

200mA

L23

33R FB

C104

+5V_MUX

C101

C102

0.1uF

22uF/16V

GND

GND

+3.3V_AVDD +3.3V_LBADC

L25

+1.8V_DVDD

CVDD:300mA

AVDD:60mA

33R FB

C108

22uF/16V

GND GND

C107

0.1uF

C114

100uF/16V

+1.8V_DEC

A_1.8V

L28

33R FB

D_1.8V

L29

33R FB

GND

2

1

+3.3V_AVDD

L27

33R FB

C115

100uF/16V

GND

A A

5

U14

LT1117-1.8V

4

TAB

3 2

VIN VOUT

GND/ADJ

Sot223

C116

0.1uF

1

C113

0.1uF

GND

GND

4

3

5

D D

4

3

2

1

PANEL_POWER PANEL_POWER

LV_E[0..9]

C C

LV_O[0..9]

PD[20..23]

B B

DENSHT-5,6
DHSSHT-5,6
DVSSHT-5,6
DCLKSHT-5,6

DEN
DHS
DVS
DCLK

LV_E9

8

22Rx4
22Rx4

22Rx4

7
6
5 4
8
7

RN1

6
5 4

8
7
6
5 4
8
7
6
5 4

8
7
6
5 4
8
7
6
5 4

1
2
3

RN222Rx4

1
2
3

1
2
3

RN3

1
2
3

RN422Rx4

1
2
3

RN5

1
2
3

RN622Rx4

LV_E8
LV_E7
LV_E6 ER3
LV_E5
LV_E4
LV_E3
LV_E2

LV_E1
LV_E0
LV_O9
LV_O8
LV_O7
LV_O6
LV_O5
LV_O4

LV_O3
LV_O2
LV_O1
LV_O0
PD20
PD21
PD22
PD23

R92 22R
R93 22R
R94 22R
R95 22R

C76
47PF

ER0
ER1
ER2

ER4
ER5
ER6
ER7

EG0
EG1
EG2
EG3
EG4
EG5
EG6
EG7

EB0
EB1
EB2
EB3
EB4
EB5
EB6
EB7

DE
HS
VS
CLK

ER[0..7] SHT-6

EG[0..7] SHT-6

EB[0..7] SHT-6

J10

1

2
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39

87089-40

4

6

8

10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40

CLK

VS

EB6

EB2
EB0 EB1

EG6
EG4
EG2
EG0

ER6
ER4
ER2
ER0

GNDGND

DE
HS

EB7
EB5EB4
EB3

EG7
EG5
EG3
EG1

ER7
ER5
ER3
ER1

GND

A A

5

4

3

2

1

5

D D

C C

PPWR5

B B

PWM0

Panel Power Voltage Selection

PPWR

R91 4K7 C223

R82 1K

R860R88

+5V

R89

47K

R90

1K

3

Q9

1

MMBT3904L

2

GND

C74

0.1uF

GND

+12V

+5V+3.3V_DVDD

R87

0

0

C75

22uF/16V

GND

1

U8

1

S1

2

G1

3

S2

4

G2

SI9953ADY

Panel Power Switch

+5V

R79

2K

R80 470R

3

Q7
MMBT3904L

2

GND

D1
D1
D2
D2

4

BKLT_ADJ

C72

C73

22uF/16V

0.1uF

GND

C56

0.1uF

GND GND

PANEL_POWER

0.1uF

F1

8
7

33R FB

6
5

+12V

L6

31R FBL831R FBL731R FB

C71

C70

0.1uF

0.1uF

GND

LV_O[0..9]

LV_E[0..9]

3

Backlight
Inverter
Connector

J9

1
2
3
4

BKLT_ENBKLT_EN

5
6
7

CON7

L10

L11

L9

31R FB

31R FB

31R FB

GND

R81 0R

4k7

GND

R85 0R

TXO0-

LV_O0 TXO0-EB3

TXO0+

TXO1-

LV_O2
LV_O3 EB0

TXO1+

TXO2-

LV_O4 EG7
LV_O5 EG6

TXO2+

TXOC-

LV_O6 EG5
LV_O7 EG4

TXOC+

TXO3-

LV_O8 EG3
LV_O9 EG2

TXO3+

TXE0+

TXE1-

TXE1+

TXE2-

TXE2+

TXEC-

TXEC+

+5V

3

2

GND

LVDS test points right on the trace to avoid extra length

EB2

EB1

LV_E0 EG1
LV_E1 EG0

LV_E2 ER7
LV_E3 ER6

LV_E4 ER5
LV_E5 ER4

LV_E6 ER3
LV_E7 ER2

R78

10K

MMBT3904L

2

PBIAS

R84 1KR83

1

Q8

PBIAS 5

TXO0+LV_O1
TXO1­TXO1+
TXO2­TXO2+

TXOC­TXOC+
TXO3­TXO3+
TXE0­TXE0+

TXE1­TXE1+

TXE2­TXE2+
TXEC­TXEC+
TXE3­TXE3+

PANEL_POWER

TP15

GND

CN3

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

DF14A-30P-1.25H

LVDS Output
Connector

1

TXE3-

LV_E8 ER1
LV_E9 ER0

TXE3+

A A

5

4

3

2

1

5

D D

Keypad
INTERFACE

C C

IR REMOTE SENSOR
INTERFACE

B B

J7

+5V

1
2

GND

3
4
5

CON5

+5V

R75

10K

A A

C64

220pF

GND

4

MCSCL
MCSDA

LED TV_IN

IR_IN

C66

220pF

GND

ADC_IN1

1x5x2.0mm

3

GPIO9/SCL
GPIO10/SDA

CON15

J5

1
2
3
4
5
6
7
8

CON8

CON5

2

NV RAM
INTERFACE

+5V

R77

R76

C65

10K

10K

J3

CVBS2

1
2

CVBS1

3
4

SVIDEO_Y

5
6

SVIDEO_C

7

+9V

8
9

SCART_R

10

11

SCART_G

12

13

SCART_B

14

15

GND

MCSCL
MCSDA

TUNER_L

TUNER_R

GND

+9V

J8

1
2
3
4
5

C67

0.1uF

U7

0.1uF

8
7
6

GND GND

CVBS2

CVBS1

SVIDEO_Y

SVIDEO_C

SCART_R

SCART_G

SCART_B

+5V

+12V

C68

C69

0.1uF

0.1uF

VCC
WP
SCK

24LC16B

CON5

A0
A1
A2

VSSSI

J4

1
2
3
4
5

J6

CON6

1
2
3
45

SCART_FB1
SCART_FB2

GND

EXTERAL AV
BOARD
INTERFACE

1
2
3
4
5
6

AV_L1

AV_R1
AV_L2

AV_R2

SCART_FB1
SCART_FB2
POWER
RET_OTHER

1

5

4

3

2

1

+3.3V_AVDD

L2

33R FB

D D

+1.8V_DVDD

33R FB

L5

33R FB

C C

RMADDR[6:0]

RMADDR[12:7]
RMADDR[14:13]

RMADDR15

RMADDR16

RMADDR17

B B

HSYNC3

A A

5

3.3V_AVDD

C18

22uF/16V

GND

L4

BootStrap Signals

For I2C address [6:0] to JTAG bridge
Host I/F, to determine device address.

User_Bits[5:0] for configuration setting

OP_MODE[1:0]:
00 = Normal op. UART in 186 on system pins.
01 = I2C to JTAG bridge.
10 = JTAG port, 5 wires
11 = External parallel control bus using
ROM Addr/Data

SPI_EN: 0 = parallel ROM I/F. 1 = SPI
serial ROM and Cache control

Initial state of OCM ROM:
0 = internal ROM on, and mapped to top 32K
of OCM and OCM boot will be from internal
ROM codes.

1 = Internal ROM off. The external ROM
mapped to entire upper 512K of OCM address.
OCM boot from external ROM code.

OSC_SEL: 0 = Xtal and internal oscillator.
1 = TTL oscillator (on TCLK pin)

C19

0.1uF

+3.3V_DVDD 3.3V_DVDD

L3

33R FB

CVDD_1.8

C38

22uF/16V

GND

AVDD_1.8

C48

22uF/16V

GND

VGAHS

5

Close to respective power Pins

C20

0.1uF

GND

C39

0.1uF

C49

0.1uF

C22

C21

0.1uF

0.1uF

Close to respective power Pins

C30

C29

0.1uF

22uF/16V

Close to respective power Pins

C40

C41

0.1uF

0.1uF

C50

0.1uF

3.3V_AVDD

U5

1

1

2

2

3

3

4

4

11

11

10

10

74LCX14

GND

C23

0.1uF

C31

0.1uF

C42

0.1uF

14

14

13
12

8
9

6
5

7

7

C24

C25

0.1uF

0.1uF

C33

C32

0.1uF

0.1uF

C43

0.1uF

Close to respective power Pins

C52

C51

0.1uF

0.1uF

13
12

VGAVS

8
9

6
5

C44

0.1uF

C26

0.1uF

C34

0.1uF

C45

0.1uF

C53

C54

0.1uF

0.1uF

VSYNC
3

4

C28

C27

0.1uF

0.1uF

Close to respective power Pins

C35

C36

C37

0.1uF

0.1uF

0.1uF

C46

C47

220pF

220pF

JTAG

14.318MHz

+5V

DEBUG
I2C SEL

3.3V_AVDD

C59

X1

5pF

TCLK

XTAL

10KR54

RMADDR0

10KR55

RMADDR1

10KR57

RMADDR2

10KR58

RMADDR3

10KR60

RMADDR4

10KR61

RMADDR5

10KR62

RMADDR6

10KR63

RMADDR7

10KR64
10KR65

RMADDR9

10KR66

RMADDR10

10KR67

RMADDR11

10KR68

RMADDR12

10KR69

RMADDR13

10KR70

RMADDR14

10KR71

RMADDR15

10KR72

RMADDR16

10KR73

RMADDR17

C55

220pF

3.3V_AVDD

C58

5pF

BOOTSTRAP OPTIONS SELECT
(NOT POPULATED SHOULD BE
HARD WIRED)

4

RMADDR8

HOST_SDA/UART_DO
HOST_SCL/UART_DI
DDC_SCL_VGA

DDC_SDA_VGA

SW1
SW PUSHBUTTON

GND GND

T2

For_Update

1
2

C57

0.1uF

RMADDR17
RMADDR16
RMADDR15
RMADDR14
RMADDR13
RMADDR12
RMADDR11
RMADDR10
RMADDR9
RMADDR8
RMADDR7
RMADDR6
RMADDR5
RMADDR4
RMADDR3
RMADDR2
RMADDR1
RMADDR0

TP14 VP

R5110K

OR20R

OR10R

DDC_SCL_VGA3
DDC_SDA_VGA3
DDC_SCL_DVI3
DDC_SDA_DVI3

BLUE+3
BLUE-3
SOG_MCSS3
GREEN+3
GREEN-3
RED+3
RED-3

VGAHS
VGAVS

RX2+3
RX2-3
RX1+3
RX1-3
RX0+3
RX0-3
RXC+3
RXC-3

+5V

30

29
28

25
23
26
27

10
11
12

32-Pin PLCC Socket

3

+5V

R5210K

GND

OR30R

OR40R

RMDATA[0..7]

R56 10K

R59 10K

U6

VCC

NC/A17

2

A16

3

A15

OE

A14

WE

A13

4

A12
A11
A10
A9
A8

DQ7

5

A7

DQ6

6

A6

DQ5

7

A5

DQ4

8

A4

DQ3

9

A3

DQ2

A2

DQ1

A1

DQ0

A0

1

NC

GND

AT49HF/F010-45JC

3

J1

1
2
3
4

RS232

DDC_SCL_VGA
DDC_SDA_VGA
DDC_SCL_DVI
DDC_SDA_DVI

CE

3.3V_AVDD

GPROBE
DEBUG
PORT

TCLK
XTAL

RESET

ADC_TEST

RX2+
RX2­RX1+
RX1­RX0+
RX0­RXC+
RXC-

3.3V_AVDD

+5V

32

GND
24
31

22

RMDATA7

21

RMDATA6

20

RMDATA5

19

RMDATA4

18

RMDATA3

17

RMDATA2

15

RMDATA1

14

RMDATA0

13

16

RMADDR17
RMADDR16
RMADDR15
RMADDR14
RMADDR13
RMADDR12
RMADDR11
RMADDR10
RMADDR9
RMADDR8
RMADDR7
RMADDR6
RMADDR5
RMADDR4
RMADDR3
RMADDR2
RMADDR1
RMADDR0

RMDATA7
RMDATA6
RMDATA5
RMDATA4
RMDATA3
RMDATA2
RMDATA1
RMDATA0

C62

0.1uF

GND

3.3V_DVDD

U4

AVDD_OUT_LV_E_33

24

AVDD_OUT_LV_E_33

26

AVDD_LV_33

27

AVDD_OUT_LV_O_33

40

AVDD_OUT_LV_O_33

113

AVDD_IMB_33

120

AVDD_RX2_33

125

AVDD_RX1_33

130

AVDD_RX0_33

134

AVDD_RXC_33

141

AVDD_BLUE_33

145

AVDD_GREEN_33

150

AVDD_RED_33

154

AVDD_ADC_33

172

LBADC_VDD_33

171

AVDD_RPLL_33

12

AVSS_OUT_LV_E

23

AVSS_OUT_LV_E
AVSS_LV

28

AVSS_OUT_LV_O

39

AVSS_OUT_LV_O

115

AGND_IMB

117

AGND_RX2

122

AGND_RX1

127

AGND_RX0

131

AGND_RXC

144

AGND_BLUE

149

AGND_GREEN

153

AGND_RED

156

AGND_ADC

168

AGND_RPLL

177

LBADC_GND

136

GND_RXPLL

GND

170

TCLK

169

XTAL

71

HOST_SCL/UART_DI

72

HOST_SDA/UART_DO

77

DDC_SCL_VGA

78

DDC_SDA_VGA

79

DDC_SCL_DVI

80

DDC_SDA_DVI

178

RESETn

142

BLUE+

143

BLUE-

146

SOG_MCSS

147

GREEN+

148

GREEN-

151

RED+

152

RED-

181

HSYNC

182

VSYNC

TP10

155

ADC_TEST

118

RX2+

119

RX2-

123

RX1+

124

RX1-

128

RX0+

129

RX0-

132

RXC+

133

RXC-

TP11

138

R53 250/1%

CLKOUT

114

REXT

183

ROM_ADDR17

184

ROM_ADDR16

185

ROM_ADDR15

186

ROM_ADDR14

187

ROM_ADDR13

188

ROM_ADDR12

189

ROM_ADDR11

192

ROM_ADDR10

193

ROM_ADDR9

194

ROM_ADDR8

195

ROM_ADDR7

196

ROM_ADDR6

197

ROM_ADDR5

198

ROM_ADDR4

199

ROM_ADDR3

200

ROM_ADDR2

201

ROM_ADDR1

202

ROM_ADDR0

203

ROM_DATA7

204

ROM_DATA6

207

ROM_DATA5

208

ROM_DATA4

1

ROM_DATA3

2

ROM_DATA2

3

ROM_DATA1

4

ROM_DATA0

ROM_OEn

5

ROM_OEn

ROM_WEn

6

ROM_WEn

ROM_CSn

7

ROM_CSn

gm5221

PQFP-208

SOCKET:
IC51-2084-1052

R74

10K

GND

RMDATA[0..7]

Route (LBADC_IN1, LBADC_RET) and
(LBADC_IN2, LBADC_RET) as differential
tracks close to each other and ground the
return track of each pair very close to the
5221 and ground pin

3.3V_DVDD

5073190

RVDD_33

3.3V_A

AGND

VDATA7/GPIO16

VDATA6/GPIO17

VDATA5/GPIO18

VDATA4/GPIO19

VDATA3/GPIO20

102

103

106

107

108

109

YUV2

YUV6

YUV7

YUV5

YUV4

YUV3

2

AVDD_1.8

205

1669417596

116

12125126

13711164

95

RVDD_33

RVDD_33

RVDD_33

RVDD_33

VDD_RX1_18

VDD_RX0_18

VDD_RX2_18

VDD_RPLL_18

VDD1_ADC_18

VDD_RXPLL_18

VDATA2/GPIO21

YUV1

NC

VDATA1/GPIO22

VDATA0/GPIO23

VCLKNCNCNCNCNCNCNCNCNCNC

54

110

111

1125253

C63

8P2

YUV0

GND

DECCLK

DECCLK

YUV[0..7]

YUV[0..7]

2

CVDD_1.8

86

CVDD_18

CVDD_18

CVDD_18

CH3P_LV_E(PD0/ER0)
CH3N_LV_E(PD1/ER1)
CLKP_LV_E(PD2/ER2)
CLKN_LV_E(PD3/ER3)
CH2P_LV_E(PD4/ER4)
CH2N_LV_E(PD5/ER5)
CH1P_LV_E(PD6/ER6)
CH1N_LV_E(PD7/ER7)
CH0P_LV_E(PD8/EG0)
CH0N_LV_E(PD9/EG1)

CH3P_LV_O(PD10/EG2)
CH3N_LV_O(PD11/EG3)
CLKP_LV_O(PD12/EG4)
CLKN_LV_O(PD13/EG5)
CH2P_LV_O(PD14/EG6)
CH2N_LV_O(PD15/EG7)
CH1P_LV_O(PD16/EB0)
CH1N_LV_O(PD17/EB1)
CH0P_LV_O(PD18/EB2)
CH0N_LV_O(PD19/EB3)

GPIO8/IRQout

PWM0/GPIO11
PWM1/GPIO12
PWM2/GPIO13
PWM3/GPIO14

STI_TM1/GPIO15

VBUFC_RPLL

LBADC_RETURN

104

105

157

158

159

160

CVDD_1.8

139

CVDD_18

CVDD_18

CVDD_18

VCO_LV

PD20/EB4
PD21/EB5
PD22/EB6
PD23/EB7

PD24/OR0
PD25/OR1
PD26/OR2
PD27/OR3
PD28/OR4
PD29/OR5
PD30/OR6
PD31/OR7
PD32/OG0
PD33/OG1
PD37/OG5

GPIO7/IRQin

GPIO9/SCL

GPIO10/SDA

VBUFC_DVI

STI_TM2

CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS
CRVSS

GND_RPLL

GND1_ADC

LBADC_IN1
LBADC_IN2
LBADC_IN3

161

162

1

179

CVDD_18

TP9

10

LV_E9

13

LV_E8

14

LV_E7

15

LV_E6

16

LV_E5

17

LV_E4

18

LV_E3

19

LV_E2

20

LV_E1

21

LV_E0

22

LV_O9

29

LV_O8

30

LV_O7

31

LV_O6

32

LV_O5

33

LV_O4

34

LV_O3

35

LV_O2

36

LV_O1

37

LV_O0

38

PD20

43

PD21

44

PD22

45

PD23

46

56
57
58
59
60
61
62
63
64
65
66

47

DEN

48

DHS

49

DVS

55

DCLK

67

PPWR

68

PBIAS

81

GPIO0

82

GPIO1

83

GPIO2

84

GPIO3

85

GPIO4

88

GPIO5

89

GPIO6

90
91
92
93

98
99
100
101

69

167

TP12

135

70
206
191
180
140
97
94
76
74
51
42
8
87
165
163

GND
173
174
175
176

LBADC_RET

GND

GPIO0
GPIO1
GPIO2
GPIO3

GPIO5
GPIO6

MCSCL
MCSDA

PPWR
PBIAS

C60

0.1uF

GND

LV_E[0..9] 7,8

LV_O[0..9] 7,8

PD[20..23] 8

DEN

DHS
DVS
DCLK

PPWR 7,8
PBIAS 7

SEL_RGB
VGACON
VBI_INTR
LED
DEC_PWN
RET_OTHER
POWER
IR_IN
SWS1
MCSCL
MCSDA

PWM0

AMP_MUTE

SWS0

KEYBOARD
INPUT TO
LBW ADC

ADC_IN1
SCART_FB1
SCART_FB2

C61

0.1uF

1

DEN
DHS
DVS
DCLK

MUX SEL,VGA
CONNECTOR
SIGNAL,VBI
INTR, LED, AMP
AND AUDIO
DISABLE

I2C
PWM
OUPUT
FOR AMP
VOLUME,
BL
BRITNESS

5

DVI INPUT
CONNECTOR

CN1

25

Shell

1

RX2-

2

RX2+

3

GND

4

RX4-

5

RX4+

SCL

SDA

VCCA0

SCL
SDA

VGA_5V

VS

RX1-

RX1+

GND
RX3-

RX3+

5V

GND

HP

RX0-

RX0+

GND
RX5-

RX5+

GND

RXC+

RXC-

RED
GRN

BLU

HS

GND

26

Shell

GND

DVI-I

BAT54C

D5

A1

C

5V_VGA

C2

0.1uF

81
7
6
5

GND

D D

C C

EDID VGA

U2

2

A1A2WP

3
4

GND

24AA02

GND

ANALOG DDC

B B

A A

+5V

A2

GND

GND

6
7
8

9
10
11
12
13
14
15
16

17
18
19
20
21
22
23
24

C1
C2
C3
C4
C5

DNP

R15

47K

P1

3 4

1 2

GND

GND2 SIG2

GND1 SIG1

COMPONENT

SIG3GND3

DVI_SCL
DVI_SDA

RX1+IN

HOT_PLUG

+5V

1 2

GND

R16
2K7

BAV99

DVI_5V

D6

3

65

R1 10K

+5V

3

BAV99

1 2

GND

R17 100R

R18 100R

GND

FB1

21

FB2

21

FB3

21

+5V

D3

3

BAV99

1 2

GND

VGASCL
VGASDA

D4

VGA_SCL

VGA_SDA

+5V

C220

0.1UF
BAV99

1 2

GND GND

A-VS

A-PB

A-PR

A-Y

DVI_SCL

DVI_SDA

+5V

D7

3

3

R30
10K

GNDGND

YPrPB Video In

+5V

3

GND

GND

15

14

13

12

11

BAV99

1 2

R31
10K

BAV99

1 2

DB15 HD

D8

R23 20R

4

3

2

DVI test points right on the trace to avoid extra length

D1

R4 100R
R6 100R

R12 10K

R13 0R

CN2

5
10
4
9
3
8
2
7
1
6

Near VGA pins

1%

1%

DVI_5V

EDID DVI

GND

GND

+5V

BAT54C

D2

A2

A1

5V_DV

C

R3

R2

2K7

2K7

U1

81

VCCA0

2

7

A1A2WP

3

6

SCL

4

5

GND

SDA

24AA02

GND

DIGITAL DDC

VGACON

R14
10K

VGA_5V

VGA RGB In

A-BLUE

A-GREEN

A-RED

R1982

R2082

R2182

GND

GND

GND

HSYNC 5

VSYNC 5 BLUE+ 5

A-Y

A-GREEN

A-PB

C11

10uF/16V

82

R32

GND

C15

10uF/16V

C17

10uF/16V

82

R49

GND

DVISCL
DVISDA

C1

0.1uF

GND

+5V_MUX

SEL_RGB3

R24

Q1

22k

BC847c

12

1

2 3

R33

1k

10k

+5V_MUX

R42

Q4

22k

BC847c

1

12

2 3

R45

10k

GND

+5V_MUX

R47

Q6

22k

BC847c

1

12

2 3

R50

10k

R5 22R
R7 22R

NOT TO BE MOUNTED

+5V

R8

R9

10K

33R FB

C16

A-BLUE

10K

+

C4

C5 0.01uF

+5V_MUX

10uF

GND

R26
22k

Q2

BC847c

1 2

1

10uF/16V

2 3

R35
10k

+5V_MUX

R41

Q3

22k

BC847c

1

R43

2 3

10k

GND

C13

82

R36

1 2

10uF/16V

Pr/R

R22 47R 1%

Y/G

R25 47R 1%

Pb/B

R28 47R 1%

A-PR

GND

C14

A-RED

R10 100R
R11 100R

+5V_MUX

L1

U3

1

16

IN

VCC

15

2

EN

SA1

14

3

SD1

SA2

Y/G

4

DA

5

SB1

6

R29

GND

SB2

Pb/B

7
8

GND

R37

GND

1k

GND

SD2
DD
SC1
SC2DCDB

PI5V330

13-PI5V33-0QB

Q5

2 3

BC847c

1

R48

13
12
11
10
9

+5V_MUX

GND

GND

Pr/R

R34

1k

GND

R46

22k

1 2

10uF/16V

10k

R3884.5 1%

GND GND GND

DVI For
DVI Port

R3984.5 1%

R4084.5 1%

RX2- 5
RX2+ 5

RX1- 5
RX1+ 5

RX0- 5
RX0+ 5

RXC+ 5
RXC- 5

DDC_SCL_DVI 5
DDC_SDA_DVI 5

DDC_SCL_VGA 5
DDC_SDA_VGA 5

C3 0.01uF

C6 0.01uF
C7 0.01uF

C8 0.01uF
C9 0.01uF

C10 0.01uFR27 20R
C12 0.01uF

1

DVI SIGNAL GND's at 2mm from the respective DVI

test points

MUXED RGB
TO 5221ADC
INPUT

SOG_MCSS 5

RED+ 5
RED- 5

GREEN+ 5
GREEN- 5

BLUE- 5

5

4

3

2

1

5

4

3

2

1

LCD20b66/be1 GM21
LCD TV

D D

CONTENTS

SCHEMATIC

01. Contents

02. Input

03. GM5221

04.SPI/RESET/KEYPAD

C C

05. LVDS_ Out

06. TTL_ Out

07. Power

08. VIDEO DECODER

09.AUDIO 9

10.TURE

11.CONTROL BOARD

B B

拟制：

SHEET

1

2

3

4

5

6

7

8

10
11

审批：

A A

5

4

3

2

1

5

D D

R141

TUNER_L

AV_L2

AV_L1

TP19

TP19

C C

AV_R1

AV_R2

TUNER_R

B B

MCSDA

MCSCL

2k

C175

2n

R142

2k

C176

2n

R144

2k

C177

2n

R146

PC_L

2k

C180

2n

R147

2k

PC_R

C181

2n

R150

2k

C184

R151

2k

C190

R153

2k

C197

C185

2n

2n

2n

0.1uF

C188

0.1uF

C191

0.1uF

C195

0.1uF

C199 4.7uF/NS

TP21

+

C201 22n

C203 2.2n

C206 100n

C209 4.7uF/NS

TP23

+

C212 1uF

C214 1uF

R161 100

4

1

IN1a

2

IN2a

3

IN3a

4

IN4a

5

MONa

6

SS FIL

7

TONE-Ha

8

TONE-La

9

LINEa

10

OUTa

11

CVa

12

CVb

13

SDA

14

SCL

15 16

GND V+

MONb

SR FIL

TONE-Hb

TONE-Lb

LINEb

OUTb

NJW1142

U19

IN1b

IN2b

IN3b

IN4b

AGC

CTH

CTL

Vref

30

29

28

27

26

25

24

23

22

21

20

19

18

17

C218
22uF/16V

C186

0.1uF

C189

0.1uF

C192

0.1uF

C196

0.1uF

C200

4.7uF/NS

+

C202 22n

C204 2.2n

C207 100n

C210

4.7uF/NS

+

C213 0.33uF

C215 1uF

C216 1uF

C217 1uFR160 100

+

TP22

TP24

L39 33R FB

C219

2n

3

TUNER_R

R152

+12V

1R 1/2W

+

C193
470u/16V

TUNER_R

+9V

L43 33R FB

L42 33R FB

L40 33R FB

L41 33R FB

GND

2

J14

J13

CON2

CON2

1

2

1

2

FOR LOUNDSPEAKER

+

C178

+

220uF/25V

C179

220uF/25v

R148

NC

C182

R149

2k

0.1uF

1

C183

2

2n

3

+

4

C187

5

2u2/16V

C198

0.1uF

R155

10k

C205

2n

C208
10u/16V

6

7

8

9

10 11

+

C194

2n

R154

2k

R156

NC

D13

A2

BAT54C

A1

U18

INR

SGND

SVRR

OUTR

PGND

OUTL

TPA1517

VCC

M/SW

INL

GND GND

R157

220

A1015

R159

1

Q13

2 3

BC847c

R163

100k

R162

10k

C

20

GND

19

GND

18

GND

17

GND

16

GND

15

GND

14

GND

13

GND

12

GND

D14

+

1N4148

C211

Q12

100u/16V

R158 10K

100

D15

1N4148

1

+12V

AMP_MUTE

A A

Title

<Title>

Size Document Number Rev

<Doc> <RevCode>

C

5

4

3

2

Date: Sheet

1

of

99Thursday, January 19, 2006