Akira LCT-27KXSTP Schematic

LCT TV

Service Manual

-2 -

MODEL:

LCT-27KXSTP

Model No.: LCT-27KXSTP
Version: 1.0

-3 -

CONTENTS

SPECIFICATION..................................................................................................................................... 4

BLOCK DIAGRAM ................................................................................................................................7

CIRCUIT DIAGRAM.............................................................................................................................. 8

PCB BOARD .........................................................................................................................................24

EXPLODED VIEW................................................................................................................................ 34

PART LIST............................................................................................................................................. 35

Model No.: LCT-27KXSTP
Version: 1.0

-4 -

SPECIFICATION

FEATURES:

 Power supply: AC 100~240V 50/60Hz

 Multi TV system: PAL BG /DK /I /M /N, NTSC M/N, SECAM BG /DK /LL’

 Multi standard sound processors: NICAM, FM-stereo, BTSC

 Multi Video system: PAL /NTSC /SECAM

 Versatile input sources: TV, Video, S-Video, Scart, YcbCr, YpbPr, DVI, PC (analog)

 Full function remote controller

 Excellent sound effect with volume, trable, bass, balance AVC adjustable, Audio mode, special

effect, equalizer

 Smart sound & picture mode set: Personal, cinema, speech, music, standard, personal, bright, mild

 Adaptive 2/4 line comb filter for PAL /NTSC

 VTR for weak and distorted signal from video tape recorder

 10 pages teletext

 Automatically turn off the set when signal absent longer than 10 minutes.

 150 channels

 Blue screen display

 CC /V-CHIP

 Freeze picture

 Program label

 Sleep

 Screen size change

 Standby

 Channel swap

Model No.: LCT-27KXSTP
Version: 1.0

-5 -

GENERAL SPECIFICATION

PART 1: TV SET

200watt (max) Power consumption

≤3watt (stby)

TV receive system PAL D/K I B/G M/N SECAM L/L’ D/K B/G

NTSC M/N

Video system Multi PAL /SECAM /NTSC

Vision intermediate frequency 38.9MHz, 33.95MHz (L’)

Inter-carrier frequency

Channels received

Tuning mode PLL SYSTEM

AV In /Out

AV In /Out specification

Antenna input impedance 75Ω

Audio output power 6W x 2 (1KHz, 0.5Vrms, 10%THD)

5.5 MHz (B/G)

6.0 MHz (I)

6.5 MHz (D/K, L/L’)

5.85 MHz (NICAM B/G, D/K, L)

6.55 MHz (NICAM I)

5.74MHz (GERMAN STEREO)

4.5MHz (BTSC)

BG /DK/ L: 34.47MHz CHROMA if frequency

L’: 38.38MHz

VHF-L 46.25 - 163.25MHz

VHF-H158.25 - 466.25MHz

UHF 471.25 - 855.25MHz

1 AV in, 1 S-Video In

Scart in, YcbCr In, YpbPr IN

1 AV out

Y/C IN-Y: 1.0± 0.2

Video In ---1.0 ±0.2V

Audio In --- Approx, 500mV

Video Out --- 1.0±0.2V

Audio Out ---Approx, 400mV

RGB In: ≤0.7V

English /Spanish /Italian OSD language

German /French /Russian /Portuguese / Poland

/Turkish /Croatian /Serbian /Macedonian

/China-Simple /China-Traditional

Note: OSD language has only 5 language

p-p

75Ω C:0.7V

p-p

75Ω

p-p

75Ω

p-p

p-p

75Ω

Model No.: LCT-27KXSTP
Version: 1.0

-6 -

Continue shine POWER ON LED indicator

Flash standby

Hand set power supply Battery 1.5V (AAA) x 2

PART 2: PC RESOLUTION

Analog RGB In 0.7V

DVI In 0.7V

RESOLUTION V.Feq (Hz) h. Feq. (Hz) Graphic Mode

640 x 480 59.940 31.469 VGA

800 x 600 60.317 37.879 VGA

1024 x 768 60.004 48.363 VGA

1280 x 720 59.870 47.776 VGA

PART 3: PANEL

Brand & model CHIMEI /V270W1-L03

Resolution 1280 x 720

Displayable color 16.7MHz

Surface Hard coating + Anti-Radiation

Viewing Angle (H/V) 170o (Hor) /170o (Ver)

Display Response Time 16ms

Contrast Ratio 1:600

Brightness 550nit

Aspect 16:9

Lamp Life 50,000Hrs

Bad Pixel Quality (Bright /Dark /Total) 2 /6 /8

p-p

p-p

Model No.: LCT-27KXSTP
Version: 1.0

BLOCK DIAGRAM

-7 -

7654321

8

D

S_VIDEO IN

TUNER

AV IN

YCrCb

SCART

U6

TELETEXT CCD/VCHIP

EEPRAM

U4

VIDEO

DECODER

U24

VIDEO

SWITCH

U7U8

C

PC

YPrPb

U3

SYNC

U10

SWITCH

U11

ADC

U1

DVI

DAC

UC

U14

BUFFER

U9

SDRAM

DEINTERLACER

UB

BUFFER

U21

SWITCH

U5

EEPRAM

FLASH MEMERY

U17

U18

CPU/SCALER

UD

RESET

U2

BUFFER

UE

AMP

LVDS

U19

LCD PANEL

D

C

B

TV AUDIO

AV AUDIO

SCART AUDIO

HDTV AUDIO

AUDIO

DECODER

POWER

AMP

A

POWER

1 2 3 4 5 6 78

24VDC

11----20VDC
5VDC
5VDC_SB
3VDC_SB

STAND BY

Model No.: LCT-27KXSTP
Version: 1.0

I2C

B

A

CIRCUIT DIAGRAM

D

C

B

A

-8 -

7654321

OVCC CVCC PVCC AVCC

82

97

6

18

VCC367VCC238VCC1

PVCC

AVCC

R1

96

EXT_RES

510R

DVI1

DATA2/4_SHLD

DDC_DATA

DATA1/3_SHLD

H_PLUG_DET

DATA0/5_SHLD

CLK_SHLD

DVI

VCC

IC1

VIN3VOUT

LT1117-3.3V

AVCC AVCC AVCC AVCC AVCC PVCC PVCC

C3

0.1

1 2 3 4 5 6 78

SHELL1
DATA2-

DATA2+

DATA4-

DATA+

DDC_CLK
A_VSYNC

DATA1­DATA1+

DATA3­DATA3+

DATA0­DATA0+

DATA5­DATA5+

CLK+

A_RED

A_GREEN

A_BLUE

A_HSYNC

A_GND

SHELL2

C4

0.1

GND

CLK-

1

+5V

GND

C5

0.1C60.1

31

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(C1)
26(C2)
27(C3)
28(C4)
29(C5)

32

47uF/16V

2

C1

C7

0.1C80.1C90.1

GSCLV
DDCDV

DVC1

L2

2

112

22uH

L3

22uH

L4

22uH

C2

0.1

L5

22uH

GSCLV
DDCDV

7,9

3,7,9

9

OVCC

PVCC

AVCC

CVCC

OVCC OVCC OVCC OVCC OVCC CVCC CVCC CVCC

C11

C12

C13

0.1

0.1

0.1

DIGSEL

PD

C14

0.1

CVCC

R2

1K

R187
0

C15

C16

0.1

0.1

R10
1K_NS

90

RX0p

91

RX0m

85

RX1p

86

RX1m

80

RX2p

81

RX2m

93

RXCp

94

RXCm

100

OCK_INV

4

PIXS

1

DFO

7

STAG_OUT

3

ST

9

PDO

2

PD

99

RSVD

CVCC

C17

C18

C19

0.1

0.1

0.1

OVCC578OVCC457OVCC343OVCC229OVCC1

OGND119OGND228OGND345OGND458OGND576GND15GND239GND368PGND98AGND179AGND283AGND387AGND489AGND5

U1

AVCC495AVCC388AVCC284AVCC1

8

SCDT

10

QE0

11

QE1

12

QE2

13

QE3

14

QE4

15

QE5

16

QE6

17

QE7

20

QE8

21

QE9

22

QE10

23

QE11

24

QE12

25

QE13

26

QE14

27

QE15

30

QE16

31

QE17

32

QE18

33

QE19

34

QE20

35

QE21

36

QE22

37

QE23

49

QO0

50

QO1

51

QO2

52

QO3

53

QO4

54

QO5

55

QO6

56

QO7

59

QO8

60

QO9

61

QO10

62

QO11

63

QO12

64

QO13

65

QO14

66

QO15

69

QO16

70

QO17

71

QO18

72

QO19

73

QO20

74

QO21

75

QO22

76

QO23

44

ODCK

46

DE

47

VSYNC

48

HSYNC

40

CTL1

41

CTL2

42

CTL3

SII161

92

R11

RP1

RP3 47

RP2 47

RP4

RP5 47

RP6 47

1

1

GB0

47

47

47

R12

T2

1

T1

2

GB1
GB2
GB3
GB4
GB5
GB6
GB7
GG0
GG1
GG2
GG3
GG4
GG5
GG6
GG7
GR0
GR1
GR2
GR3
GR4

GR5
GR6
GR7

R13 47_NS

T3

GCLK

GFBK

6,7,8

GVS

GRAPHIC

47

DVI-DE

8

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-9 -

7654321

D

C

B

CN14

CON6

CN12

CON6

TVVIN

1

GND

2

BLANKING

3
4

GND

5

TV-AUDIO

SCART_L

6

SD

5

SCART_R

4

SL

3

SD

2

SR

1

A

TV-VIN

BLANKING

S-B

3.3uHR239 75

S-G

3.3uHR240 75

S-R

3.3uHR241 75

GND

S-R

S-G
S-B

GND

RGB/V

RGB/V

R242 75L45

R243 75L46

R244

75L47

SCART

20
1819
1617
1415
1213
1011
89
67
45
23

1

SCART

R230 1K

C251
330pF

C252
330pF

C253
330pF

S-B

S-G

S-R

GND

VIN

VIN

ZD1

ZENER3
R8 1K

R9 1K

100uF/16V

ZD2
ZENER3

R236
10K

C23

R237
10K

SW

R17

SCART_L

SCART_R

R15

10K

R16 10K

R19 47

SW

C8

100uF/16V

GND

10K

Q15

9014

VCC

R25

47

Q12

9014

R26
1K

VCC

R18
10K

Q17
9014

R20

47

R22

1K

GND

SCART

Q13

9014

SCART

GND

R21

47

R24 10K

R23

10K

R27
10K

TV-AUDIO

C10

100uF/16V

TVVIN

GND

1 2 3 4 5 6 78

8

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-10 -

VSYNC

8

D

7

C

B

A

7654321

D

PWCS0#

PWD0
PWD1
PWD2
PWD3
PWD4
PWD5
PWD6
PWD7

MEM_BUS

9,10

CLK

VCC

3

1D

4

2D

7

3D

8

4D

13

5D

14

6D

17

7D

18

8D

74HC374

GND

1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
OE

U2

11

VDD

20

2
5
6
9
12
15
16
19
1
10

MUTE

C

CON5 is for LCD control (J24's) supplement,

11

LCDON

11

BKLON
PD

4,9

LVDSON

12

680R

680R
0

LED1

GREEN

LED2

DIGSEL

R38

R39

R40

DIODE

DIGSEL

MUTE

CN5

1
2

CON2

7

7

BUF-VS

1

BUF-VS

22R

7

HSYNC

R35
22R

R36

C25

2.2K

22P

C26

R37

22P

2.2K

R34

BUF-HS

BUF-HS

U3

1
2
3
4
5
6
7 8

74hc14a

VFF

14
13
12
11
10
9

1,7,9

7

7,1 7,1 7,1

B

VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC

2

K

A

1

D1

3

BAV99L

DDCD

R29
10K

D2

BAV99L

DDCC

R30
10K

D3

BAV99L

RED

D4

BAV99L

GREEN

D5

BAV99L

BLUE

D6

BAV99L

BUF-HS

R44
2K

D7

BAV99L

BUF-VS

R45
2K

R184 10K

VIN

VIN4

YSOG

VIN
VIN4

YSOG

1
2
3
4
5
6
7

U21

0Y

2Y

YOUT

3Y

1Y

INH

VEE

VSS8B

VDD

XOUT

CD4052

VCC

R223
10K

2X
1X

0X
3X

A

VCC

C234

16

0.1

15
14
13
12
11
10

A

9

B1

R225
10K

VIN YSOG

R224
10K

DEN
DDEN
DVI-DE

A

B1

A

1 2 3 4 5 6 78

Model No.: LCT-27KXSTP
Version: 1.0

-11 -

7654321

D

C62

R59

100

VOUT

4

VOUT

4.7

VOUT

VINHS
VINVS

SDA

RST1#

C246

SCL

RST1#

4.7

R204

0

R66

VAA

R202

5.6K

100

C

+12

R205
22K

L41
FB

3

C249
100uF/16V

IC9
7805

IN

1

OUT

GND

2

B

L42
FB

GND GND

VAA

C208
100uF/16V

GND

A

1 2 3 4 5 6 78

VAA

R62

5.6K

R63
22K

GND GND

VAA

R203

47

Q2
9014

R206
470

4,6,8,9

C244

0.1

VAA

C20

0.1

V33VT

R64

47

Q3
9014

C63

R60
470

R207

R209 1K

0.1

470

VID_BUS

R80

24K

20pF

BLUE

VDS
RED

BLUE

PWM

PW7
PW6
PW5
PW4
PW3
PW2
PW1
PW0

P0_7
P0_6
P0_5
P0_4
P0_3
P0_2

P1_5
P1_4
P1_3
P1_2
P1_1
P1_0

COR

VDD
SDO

RED

BOX

VAA

C65

0.1

GND

VAA

GND

12

16

GND

18

2

3

17

C67

8

R75

9

LPF

5264

6.8K

C77

35

34
33
32

1
30

8
7
6
5
4
3
2

21
20
19
18
17
16

R210 10K

52
51
48
47
46
45

29
27

15

DA

14

CL

GND

C54

C78

6.8nF

0.1

R31
10K

R192

R67 470

R193

R194

R69 470

D13

IN4148

68nF

V33VT

0.1

470

470

470

R32

10K

V33VT

D14

IN4148

R196

R198

R200

GND

C71

75

R74

R76

75

GND

470

470

470

U6

5

6
7

8

SDA

SCL
TEST

VCC

GND

A2
A1

A0

24C16

33pF

C72

0.22

V-RED

C69
33pF

C73

0.22

C70
33pFR68 470

C74

0.22

4

3
2

1

V-RED

V-GRN

V-GRN

V-BLU

V-BLU

V-BOX

V-BOX

C75
33pF

VDD V33VT

L8
FB

U26 bypass cap

C80

100uF/16V

VAA

C38 is the bypass cap for Q1

C64

0.1

GND

R61

470

CVBS0

SCL

SCL

SDA

SDA

VINVS
VINHS

C21

CVBS0

0.1

X2

12.000M

R208

5.6K

C61
20pF

Q1

9015

RST1#

R232
10K

C60

VAA

CCVIN

VINHS
VINVS

SDA
SCL

R73 10K

GND GND

49

SCL

50

SDA

37

VSYNC

36

HSYNC

23

CVBS0

24

CVBS1

25

FILT

26

IREF

42

XO

41

XI

40

XGND

43

RESET

28

TEST

9

ADC0

10

ADC1

11

ADC2

12

ADC3

R65

0_NS

7

5

13
14

15

4

10

6

1

11

31

VDDA

22

V33VT

GNDA

U7

VIDEO

HS_IN
VS_IN

SDA
SCL

SEN
PREF

SMS
ASEL

VSSA

Z86229

39

VDDC

U8

13

GNDC

44

VDDP

38

SDA_NV
SCL_NV

GNDP

GREEN

CSYNC

GREEN

FRAME

8

D

C

C22

0.1

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-12 -

7654321

CN3

CON2

2
1

5,6,9,10,11

D

C

S-CIN
S-YIN
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND
SAGND

HD-Y1

HD-Y

B

HD-Pb1
HD-Pb

HD-Pr1

HD-Pr

AV-IN
SAGND

S-VIDEO1

5

GND

GND

GND

X

2

X

2

X

2

5

CON9

Y

Y

Y

VOUT

VOUT

RST1#

RST1#

SDA
SCL

1
2
3
4
5
6
7
8
9

SDA

SCL

SCL

13

14

15

SCL

SDA

CLK560FPDAT58CLK2024ASGND7ASGND64GND11APGND25APVDD26PLGND30YGND35CGND46SPGND51AFGND65ISGND68ISGND77ISGND80I2CSEL

GND

R245
0_NS

R246
0_NS

R247
0_NS

YCb

YCr

AV-IN

S-CIN

S-YIN

YY

2

TV-VIN

R71 1.2K

TGND

GND

VIN4

VIN4

YSOG

GRN

RRED
V-BOX1

R216
10K

3.3uHR52 75

3.3uHR53 75

3.3uHR54 75

R218
10K

GND

GND

GND

BLU

YY YCb YCr YCb2 YY2 YCr2

R212

R214

10K

10K

R220
10K

R56 75L9

R57 75L10

R55

C58
20pF

C59
20pF

R49 2K

R50 75

R51 75

R58 75

75L11

GND

R222
10K

C55
330pF

C56
330pF

C57
330pF

C255 0.22

X1

20.25M

C27

0.68

C28

0.68

C31
1nF

C29

0.68

C30

0.68
C37

0.22

C38

0.22

C39

0.22

C256 0.22

C254

0.22

74

VIN3

73

VIN2

71

CIN

72

VIN1

75

VIN4

5

Y2/G2

4

U2/B2

6

V2/R2

2

Y1/G1

1

U1/B1

3

V1/R1

79

FBIN1

62

XTALI

63

XTALO

2

TV-VIN

G

B

R

1

1

1

V-BLU

V-BOX

RGB/V

R251 6.8K

S-B

V-GRN

S-G

V-RED

S-R

V-BOX

A

SDA

SCL

VDD

C53

0.1

1 2 3 4 5 6 78

U5

5

SDA

6

SCL

7

TEST

8

VCC

GND

4
3

A2

2

A1

1

A0

24C16

C32
1nF

VDD

C36

0.22

10

12

29

VDD

VDDCAP9GNDCAP

RST#

70

VOUT

U4
VPC3230D

C44
47nF

C33
1nF

R248 0_NS

R249

0_NS

R250

0_NS

VSS

16

2

S1A

3

S2A

5
6

11
10

14
13

1

15

VCC

S1B
S2B

S1C
S2C

S1D

PI5V330

S2D
IN

EN

GND

8 U24

GND

VDD +5

36

45

52

69

CVDD

YVDD

PLVDD

SPVDD

4

DA

7

DB

9

DC

12

DD

AFVDD

V-BOX1

GND

76

ISVDD

BLU

GRN

RRED

VCC is 5V power supply from the power socket VDD is 3.3V digital power supply, +5 is 5V
analog power supply for U1 VPC3230D; VTT is 5V power supply for U2 FI1256MK 2 (TV Tuner)

59

VREF

78

VREF

66

VRT

VSTBY

47nF

19

FFIE

20

FFWE

21

FFRST

22

FFRE

23

FFOE

31

Y7

32

Y6

33

Y5

34

Y4

37

Y3

38

Y2

39

Y1

40

Y0

41

UV7

42

UV6

43

UV5

44

UV4

47

UV3

48

UV2

49

UV1

50

UV0

27

LLC2

28

LLC

54

AVO

55

HCLP

56

HS

57

VS

53

INTLC

16

TEST

17

VGAV

18

OE#

67

47

47

L38

11R/100MHZ

YCr2

YCr

YCb2
B
YCb

RP7

RP8

U22

BY
BX
CY
C
CX
INH
VEE
VSS C

CD4053

GNDGND GND GND

L39

11R/100MHZ

VDD

AY
AX

C43

C45

47nFC42

10uF

VINY7

VINY6

VINY5
VINY4
VINY3
VINY2
VINY1
VINY0

VINCK

VHREF

VINHS

VINVS

VIODD

R

B

G

A

YY2

YY

A
B

R185 10K

C46
10uF

VIDEO BUS

+12

+5

(VSTBY)

C47

C48

10uF

0.1

GNDGND

VID_BUS

VDD

C49

0.1

+5

C40

0.22

Q9

R186 1K

C76

9014

0.1

8

D

5,6,8,9

C52

C51

C50

0.1

0.1

C34

C41

1nF

0.22

S/Y

GND

C

0.1

C35
1nF

B

A

A.1

Model No.: LCT-27KXSTP
Version: 1.0

-13 -

53
51
50
48
47
45
44
42
13
11
10
8
7
5
4
2

37
19

NVD15
NVD14
NVD13
NVD12
NVD11
NVD10
NVD9
NVD8
NVD7
NVD6
NVD5
NVD4
NVD3
NVD2
NVD1
NVD0

VDD

MCUA7
MCUA6
MCUA5
MCUA4
MCUA3
MCUA2
MCUA1
MCUA0

MCUD7
MCUD6
MCUD5
MCUD4
MCUD3
MCUD2
MCUD1
MCUD0

MCUCS#

MCUWR#

MCUCMD

MCURDY

G-PORT

8

7,8,9

D

C

177
176
174
173
172
170
169
168

186
185
184
183
182
181
179
178

190
191
192
188

B

A

DISPLAY BUS (G-PORT)DE-INTERLACED

PW1230 MEMORY BUS

BSL1
BSL0

A11
A10/AP
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

CLK

RAS#
CAS#
WE#

UDQM
LDQM

VDD

C112

20pF

C113
20pF

R191
10K

C89

0.1

7654321

VDD

VCC1VCC3VCC9VCC14VCC27VCC43VCC

U9

VSS6VSS12VSS28VSS41VSS46VSS52VSS

X3

10MHz

K4S641632C

146

201

40

R93

2.2M

41

47
45

55

44
43

56

144

53
50
51
48
52

49

CKEN

54

UCE
PW1230

CGMS
MVE

XTALI

XTALO

SDA
SCL

RST#
CSA2

CSA1
TEST

TSTCLK

TRST#
TCK
TDI
TDO
TMS

DQ15
DQ14
DQ13
DQ12
DQ11
DQ10

DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0

CS#

UCC
PW1230

142

DR7

141

DR6

139

DR5

138

DR4

136

DR3

135

DR2

133

DR1

132

DR0

130

DG7

129

DG6

128

DG5

127

DG4

125

DG3

124

DG2

122

DG1

121

DG0

119

DB7

118

DB6

117

DB5

116

DB4

114

DB3

113

DB2

111

DB1

110

DB0

102

R86

DCLK

104

R87 47

DHS

103

R88 47

DVS

108

R89

DENR

106

DENG

107

DENB

145

DEN

161

VREFI

162

VREFO

160

COMP

153

Y/GA

150

U/BA

156

V/RA

159

RSET

VXX VDD

123

140

175

205

235

VDD5VDD34VDD93VDD

VDD

VDD

VDD

VDD

UCF
PW1230

VSS19VSS49VSS77VSS

VSS

VSS

VSS

VSS

112

134

187

219

251

+2.5

C96

C97

C98

0.1

0.1

C99

0.1

0.1

GPR7
GPR6
GPR5
GPR4
GPR3
GPR2
GPR1
GPR0

GPG7
GPG6
GPG5
GPG4
GPG3
GPG2
GPG1
GPG0

GPB7
GPB6
GPB5
GPB4
GPB3
GPB2
GPB1
GPB0

47

DDHS
DDVS
DEN

47

PW1230E

C81

0.1
C110

BGND

0.1

R92
316

BGND

101

PVDD14PVDD29PVDD42PVDD54PVDD64PVDD69PVDD80PVDD90PVDD

PVSS10PVSS24PVSS39PVSS46PVSS57PVSS65PVSS74PVSS85PVSS96PVSS

C100

0.1

L43 FB

DEN 9

+3.3

109

120

131

PVDD

PVDD

PVDD

PVSS

PVSS

105

115

126

C101

0.1

RP9
47

RP10
47

RP11
47

RP12
47

RP13
47

RP14
47

R86

470

DDCK

PW1230E

143

165

180

200

208

216

224

230

237

243

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVDD

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

PVSS

137

147

171

189

193

202

212

222

228

233

C102

C103

0.1

0.1

BGND

UCD
PW1230

PW1230C

7,8,9

VXX

C82

0.1

VZZVYY +2.5 +3.3

249

256

197

199

PVDD

PVDD

DPAVDD

DPDVDD

MPDVDD58MPAVDD60ADDVDD

PVSS

PVSS

PVSS

DPAVSS

DPDVSS

MPDVSS59MPAVSS61ADDVSS

240

246

253

196

198

BGND BGND BGND BGND

C104

0.1

MA13
MA12
MA11
MA10

MA9
MA8
MA7
MA6
MA5
MA4
MA3
MA2
MA1
MA0

MD15
MD14
MD13
MD12
MD11
MD10

MD9
MD8
MD7
MD6
MD5
MD4
MD3
MD2
MD1
MD0

MRAS#
MCAS#

MWE#
MCLK

MCLKFB

149

148

C83

0.1

163

166

ADAVDD

ADGVDD

ADAVSS

ADGVSS

164

167

C105

0.1

NVA13

NVA13

218

NVA12

221

NVA11

220

NVA10

215

NVA9

217

NVA8

214

NVA7

211

NVA6

209

NVA5

206

NVA4

203

NVA3

204

NVA2

207

NVA1

210

NVA0

213

NVD15

254

NVD14

250

NVD13

247

NVD12

244

NVD11

241

NVD10

238

NVD9

234

NVD8

231

NVD7

232

NVD6

236

NVD5

239

NVD4

242

NVD3

245

NVD2

248

NVD1

252

NVD0

255

NVRAS#

225

NVCAS#

226

NVWE#

227

NVCLK

229

NVCLK

223

C84

C85

0.1

0.1

151

154

157

VYY VZZ

AVD33B

AVD33G

AVD33R

AVS33B

AVS33G

AVS33R

152

155

158

C106

0.1

C107

0.1

C86

0.1

C108

0.1

NVA11

R82

R81

0

0

21

NVA12

20

35

NVA10

22

NVA9

34

NVA8

33

NVA7

32

NVA6

31

NVA5

30

NVA4

29

NVA3

26

NVA2

25

NVA1

24

NVA0

23

NVCLK

38

NVRAS#

18

NVCAS#

17

NVWE#

16
39

15

R90

3.3K
R91

3.3K

SDA

SDA

SCL

SCL

RST1#

RST1#

C87

C88

0.1

0.1

BGND

C109

0.1

23
22
21
20
18
17
16
15

38
37
36
35
33
32
31
30

25
26
28
27

13
11
12

9
8
7
6
4
3
2
1

UCA
PW1230

VG7
VG6
VG5
VG4
VG3
VG2
VG1
VG0

VR7
VR6
VR5
VR4
VR3
VR2
VR1
VR0

PVCLK
CREF
PVHS
PVVS

VB7
VB6
VB5
VB4
VB3
VB2
VB1
VB0

SVCLK
SVHS
SVVS

8

D

C

4,5,8,9

VID_BUS

VINY7
VINY6
VINY5
VINY4
VINY3
VINY2
VINY1
VINY0

VINCK
VINHS
VINVS

1,7,8

GRAPHIC

B

GRAPHIC

GR7
GR6
GR5
GR4
GR3
GR2
GR1
GR0

GG7
GG6
GG5
GG4
GG3
GG2
GG1
GG0

GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0

GCLK
GFBK
GVS

UCB
PW1230

100

GR7

99

GR6

98

GR5

97

GR4

95

GR3

94

GR2

92

GR1

91

GR0

89

GG7

88

GG6

87

GG5

86

GG4

84

GG3

83

GG2

82

GG1

81

GG0

79

GB7

78

GB6

76

GB5

75

GB4

73

GB3

72

GB2

71

GB1

70

GB0

68

GCLK

66

GHS

67

GVS

A

VDD +3.3 VDD

C90

C91

C92

C93

C94

0.1

0.1

0.1

0.1

C95

0.1

0.1

1 2 3 4 5 6 78

Model No.: LCT-27KXSTP
Version: 1.0

-14 -

SDA
SCL

HD-Y
HD-Y

D

HD-Pb
HD-Pb

HD-Pr
HD-Pr

C

VGASEL

6,8,9

9
9

GCOAST

PW1230E

6

PW1230C

GND

GND

GND

X

2

X

2

X

2

Y

Y

Y

VGA

15

14
13

12
11

DDCD

DDCC

SDA
SCL

L12
HfFB

1

R94
75

GND

L13
HfFB

1

R95
75

GND

L14
HfFB

1

R96
75

GND

10

5

9

4

8

3

7

2

6

1

DB15

VGASEL

GCOAST

PW1230E

PW1230 CLK & SYNCs

PIN9

VDD

GND

HD-Y

HD-Pb

HD-Pr

R97
10K

VGABI

VGAGI

VGARI

VGAHS
VGAVS

VDD

R104

3.3K

VGAHS

R105

3.3K

VGAVS

L16
HfFB

VGA-B

R98 75

9

GND

L17
HfFB

VGA-G

R99 75

GND

L15 HfFB

GND

R100
75

VGA-R

VSS

GND

HD-Pr
VGA-R

HD-Y
VGA-G

HD-Pb
VGA-B

C114

0.1

2
3

5
6

11
10

14
13

1

15

2 3

Bypass cap for U9

S1A
S2A

S1B
S2B

S1C
S2C

S1D
S2D

IN
EN

1

UAA
74LV126

VSS

GND

16

DA

VCC

DB

DC

PI5V330

DD

GND

8 U10

4

7

9

12

BUF-VS

RED

RED

GREEN

GREEN

BLUE

BLUE

VEE VEE

C136

C132

3.9nF
R106

C133

1,3

47nF

1,3

C134
47nF

C137

1,3

1nF

C135
47nF

HSYNC

3

VSYNC

BUF-HS

1,3

GNDGND

1,3

C120

0.1

C121

0.1

39nF

VFF

3.3K

AVD26AVD27AVD39AVD42AVD45AVD46AVD51AVD52AVD59AVD62VDD11VDD22VDD23VDD69VDD78VDD

33

FILT

57

SDA

56

SCL

55

A0

54

RAIN

48

GAIN

49

SOGIN

43

BAIN

30

HSYNC

31

VSYNC

29

COAST

58

REFBYP

37

MIDSCV

38

CLAMP

GND1GND10GND20GND21GND24GND25GND28GND32GND36GND40GND41GND44GND47GND50GND53GND60GND61GND63GND68GND

GND

9

FLASHEN

B

DDCC

3

GSCL

1,9

A

DDCD

1,3,9

FLASHEN

R107

3.3K

VDD

R108

3.3K

DDCC

GSCL

GSCL

1 2 3 4 5 6 78

DDCD

GSDA( )

VDD

R109

3.3K
R110

3.3K

PIN9

R33
10k

D8

DIODE

8 9

UAC
74LV126

UAB
74LV126

UAD
74LV126

10

6
5

7

8

D9

4

13

U13
24LC21A

SCL
SDA

VCLK
VCC

DIODE

56

1112

DDCEN

GND

NC

NC
NC

VCC

C138

TXD

RXD

4
3

2

1

9014

R118

8.2K

Q4

VDD

C129

0.1

R111

3.3K

VDD

C130

0.1

VCC

R119
1K

C131

0.1

R116
200

R117
200

0.1

C139

0.1

DVC1

VCC

VDD

11
10

12

1

3

9

4

5

R3

R4

GSCLV

DDCDV

U12
MAX232A

C1P

C1M

TIN1
TIN2

ROUT1
ROUT2

C2P

C2M

3.3K

3.3K

D10

DIODE

D16

DIODE

VCC

GND

TOUT1
TOUT2

RIN1
RIN2

VM

R6 0
R7 10K

VCC

16

15

14
7

13
8

C140

0.1

2

VP

6

C141

0.1

R5

U23

0

24LC21A

6

5
7

8

VDD1

U11
AD9883A

PCRXD

PCTXD

GND

SCL

NC

SDA

NC

VCLK

NC

VCC

79

35

PVD34PVD

70

RED7

71

RED6

72

RED5

73

RED4

74

RED3

75

RED2

76

RED1

77

RED0

2

GRN7

3

GRN6

4

GRN5

5

GRN4

6

GRN3

7

GRN2

8

GRN1

9

GRN0

12

BLU7

13

BLU6

14

BLU5

15

BLU4

16

BLU3

17

BLU2

18

BLU1

19

BLU0

67

80

RXD
TXD

R112 47

66

R113 47

65

R114 47

64

R115 47

10

13

1

2 3

4

5 6

DATCK
HSOUT

SOGOUT

VSOUT

PW1230E

DDCK

DDHS

DDHS GPFBK

DDVS

9
9

CN9

1
2
3

CON3

4

3
2

1

UBC
74LV126

UBD
74LV126

UBA
74LV126

UBB
74LV126

GR7
GR6
GR5
GR4
GR3
GR2
GR1
GR0

GG7
GG6
GG5
GG4
GG3
GG2
GG1
GG0

GB7
GB6
GB5
GB4
GB3
GB2
GB1
GB0

L44

GPCLK

89

GPSOG

1112

GPVS

FB

GCLK

GFBK

GHSSOG

GVS

RP15
47

RP16
47

RP17
47

RP18
47

RP19
47

RP20
47

7654321

VFF

GRAPHIC

C116

C115

0.1

0.1

VDD1

C122

0.1

VEE

C123

0.1

GND

Bypass caps for U10 and U11

G-PORT

C117

0.1

C125

0.1

8

GRAPHIC

C118

0.1

C126

0.1

G-PORT

GND

VDD

A.1

C119

0.1

C127

0.1

C128

0.1

1,6,8

D

C

6,8,9

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-15 -

1A1
1A2
1A3
1A4

1OE

2A1
2A2
2A3
2A4

2OE
3A1

3A2
3A3
3A4

3OE
4A1

4A2
4A3
4A4

4OE

1A1
1A2
1A3
1A4

1OE
2A1

2A2
2A3
2A4

2OE
3A1

3A2
3A3
3A4

3OE
4A1

4A2
4A3
4A4

4OE

VDD1

42

VCC7VCC18VCC31VCC

U14

LVC16244

GND4GND10GND15GND21GND28GND34GND39GND

45

VDD1

42

VCC7VCC18VCC31VCC

U15

LVC16244

GND4GND10GND15GND21GND28GND34GND39GND

45

2

1Y1

3

1Y2

5

1Y3

6

1Y4

GPVS

8

2Y1

GPSOG

9

2Y2

GPFBK

11

2Y3

GPCLK

12

2Y4

GPR7

13

3Y1

GPR6

14

3Y2

GPR5

16

3Y3

GPR4

17

3Y4

GPR3

19

4Y1

GPR2

20

4Y2

GPR1

22

4Y3

GPR0

23

4Y4

GPG7

2

1Y1

GPG6

3

1Y2

GPG5

5

1Y3

GPG4

6

1Y4

GPG3

8

2Y1

GPG2

9

2Y2

GPG1

11

2Y3

GPG0

12

2Y4

GPB7

13

3Y1

GPB6

14

3Y2

GPB5

16

3Y3

GPB4

17

3Y4

GPB3

19

4Y1

GPB2

20

4Y2

GPB1

22

4Y3

GPB0

23

4Y4

BUFFERED GRAPHIC BUS

VXX

VYY is 2.5V display PLL power supply of U7,
VZZ is 2.5V memory PLL power supply of U7,

VCC

(G-PORT)

L21
FB

L22
FB

L23
FB

IC2
LT1117

VIN3VOUT

R128
300

VXX is 2.5V core power supply of U7 (PW1230)

G-PORT1,6,7 6,7,9

VYY

VZZ

+2.5

2

ADJ

1

VADJ125

BGND

R129
300

C165
47uF/16V

L24
FB

BGND

C166
47uF/16V

VXX

+2.5VZZVYY

BGND

C167
47uF/16V

VXX

C168
100uF

GRAPHIC

D

Bypass caps for U27

VDD1

C142

0.1

GRAPHIC

C143

0.1

GVS
GHSSOG
GFBK
GCLK

GR7
GR6
GR5
GR4

GR3
GR2
GR1
GR0

VDD1

47
46
44
43

1

41
40
38
37

48

36
35
33
32

25

30
29
27
26

24

C

B

6,7,9

VDD1

Bypass caps for U28

PW1230E

C155

0.1

PW1230E

C156

0.1

GG7

47

GG6

46

GG5

44

GG4

43

1

GG3

41

GG2

40

GG1

38

GG0

37

48

GB7

36

GB6

35

GB5

33

GB4

32

25

GB3

30

GB2

29

GB1

27

GB0

26

24

7654321

A

1 2 3 4 5 6 78

8

D

C

B

A

A.1

Model No.: LCT-27KXSTP
Version: 1.0

-16 -

RP27
47

RP28
47

RP29
47

RP30
47

RP31
47

RP32
47

RP33
47

RP34
47

RP35
47

RP36
47

RP37
47

RP38
47

R133 470
R138 47
R139 47_NS
R140 47_NS
R141 47

CN13
CON2

1

2

7654321

MEMORY BUS

DISPLAY PORT

VLL

C171

C169

0.1

0.1

VLL

C172

C170

0.1

0.1

VDD1

C177

C175

0.1

0.1

VDD1

C178

C176

0.1

0.1

VDD1

C183

C181

0.1

0.1

VPP

C184

C182

0.1

0.1

AGND

D17

KEY6

KEY7

DIODE

D18

DIODE

VID_BUS

4,5,6,8

6,7,8

G-PORT

D

Clock generation circuit

C

R131

6.8K
R132

470

R56 may not be stuffed

GCOAST

7

B

I2C pull-up resistors

VLL is 1.8V core power for U15

RST#

RST1#

A

PWMOUT

11

GSCL

1,7

DDCD

1,3,7

SCL
SDA

VIDEO BUS

G-PORT

PWXO

PWXI

X4

14.318

R130

2.2M

C186

C187

20pF

20pF

VHREF

IRIN

R134
1K

VCC1

IR input circuit

GCOAST

VDD1 VDD1

R135

3.3K

SCL

RST#

RST1#

PWMOUT

GSCL

SCL
SDA

1 2 3 4 5 6 78

1
2
3

CON3

R136

3.3K

SDA

R227

3.3K

)GSDA(

DDCD

VIODD

GPR7
GPR6
GPR5

CN6

GPR4
GPR3
GPR2
GPR1
GPR0

GPG7
GPG6
GPG5
GPG4
GPG3
GPG2
GPG1
GPG0

GPB7
GPB6
GPB5
GPB4
GPB3
GPB2
GPB1
GPB0

GPCLK
GPSOG

GPVS
DDEN
GPFBK

DDEN

GCOAST

VDD1

Q16

9015

R226 1K

R137

3.3K

VLL

56
55
54
51
50
49
48
47

71
75
74
70
69

27
26
25
24
23
22
21
20

19
18
15
14
13
12
11
10

9
8
7
6
5
4
3
2

31
33
32
34
35

36

VDD116VDD137VDD165VDD184VDD1

VYUV7
VYUV6
VYUV5
VYUV4
VYUV3
VYUV2
VYUV1
VYUV0

VCLK
VHS
VVS
VPEN
VFIELD

GRE7
GRE6
GRE5
GRE4
GRE3
GRE2
GRE1
GRE0

GGE7
GGE6
GGE5
GGE4
GGE3
GGE2
GGE1
GGE0

GBE7
GBE6
GBE5
GBE4
GBE3
GBE2
GBE1
GBE0

GCLK
GHSSOG
GVS
GPEN
GFBK

GCOAST

VSS117VSS138VSS166VSS185VSS1

137

185

138

186

VDD1

VDD1

VDD329VDD352VDD372VDD386VDD3

VSS1

VSS31VSS330VSS353VSS373VSS387VSS3

VPP

ROMOE#

PWD15

PWD14

PWD13

PWD12

PWD11

PWD10

PWD9

PWD8

PWD7

PWD6

PWD5

PWD4

PWD3

PWA19

PWA18

PWA17

PWA16

PWA15

PWA14

PWA13

PWA12

PWA11

PWA10

PWA9

PWA8

PWA7

PWA6

PWA5

PWA4

PWA3

PWA2

PWA1

104

123

140

171

208

165

167

164

173

174

175

176

177

178

179

180

VDD3

VDD3

VDD3

VDD3

VDDP

VDDP

181A9182A8183A7184A6187A5188A4189A3190A2191A1192

A19

A18

A17

A16

A15

A14

A13

A12

A11

A10

148

149

150

151

152

D15

D14

D13

D12

D11

153D9154D8155D7156D6157D5158D4159D3160D2161D1162D0163

D10

PWD2

PWD1

PWD0

194RD195

WR

196

ROMWE#

197

ROMOE

ROMWE

U17
PW113

VSS3

VSS3

VSS3

VSSP

VSSP

TEST

EXTRST28RESET

XT_IN

XT_OUT

TRST

TCK

TMS

TDI

TDO

PORTA7

PORTA6

PORTA5

PORTA4

PORTA3

PORTA2

PORTA1

PORTA0

PORTB764PORTB663PORTB562PORTB461PORTB360PORTB259PORTB158PORTB057PORTC746PORTC645PORTC544PORTC443PORTC342PORTC241PORTC140PORTC039RXD67TXD

105

124

141

172

166

168

142

139

169

170

147

146

145

144

143

200

201

202

203

204

205

206

207

)GSDA(

AGND

R234

3.3K

RST#

PWXI

PWXO

PWMOUT

SDA

SCL

DDCD

GSCL

IRIN

B1

S/Y

KEY7

KEY6

KEY5

KEY4

KEY3

KEY2

RST1#

KEY1

KEYBOARD BUS

R183
1K

PWCS0#

198

199

CS0

CS1

DRO7
DRO6
DRO5
DRO4
DRO3
DRO2
DRO1
DRO0

DGO7
DGO6
DGO5
DGO4
DGO3
DGO2
DGO1
DGO0

DBO7
DBO6
DBO5
DBO4
DBO3
DBO2
DBO1
DBO0

DRE7
DRE6
DRE5
DRE4
DRE3
DRE2
DRE1
DRE0

DGE7
DGE6
DGE5
DGE4
DGE3
DGE2
DGE1
DGE0

DBE7
DBE6
DBE5
DBE4
DBE3
DBE2
DBE1
DBE0

DCLKn

DCLK

SCART

SW
FLASHEN
VGASEL

PW1230E

A

PWNMI

193

NMI

DHS
DVS
DEN

68

TXD
RXD

BLANKING

R228
1K

KBD_BUS

PWNMI 10

129
130
131
132
133
134
135
136

119
120
121
122
125
126
127
128

111
112
113
114
115
116
117
118

96
97
98
99
100
101
102
103

88
89
90
91
92
93
94
95

76
77
78
79
80
81
82
83

107
106
109
108
110

7

TXD

7

RXD

1

SCART

2

SW

7

FLASHEN

7

6,7,8

3

A

BLANKING

VDD1

VGASEL

PW1230E

11

DRO7
DRO6
DRO5
DRO4
DRO3
DRO2
DRO1
DRO0

DGO7
DGO6
DGO5
DGO4
DGO3
DGO2
DGO1
DGO0

DBO7
DBO6
DBO5
DBO4
DBO3
DBO2
DBO1
DBO0

DRE7
DRE6
DRE5
DRE4
DRE3
DRE2
DRE1
DRE0

DGE7
DGE6
DGE5
DGE4
DGE3
DGE2
DGE1
DGE0

DBE7
DBE6
DBE5
DBE4
DBE3
DBE2
DBE1
DBE0

GND
DCLK
D-HS
D-VS
D-EN

KEY1

C173

0.1

C174

0.1

C179

0.1

C180

0.1

C185

0.1

MEM BUS

MEM_BUS
D-PORT

SDA
SCL
RST1#

8

D-VS

D-HS

R1420R143

CN10

1
2
3
4

CON4

A.1

3,10
11,12

D

C

0

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-17 -

7654321

MEM_BUS

3,9

D

C

B

A

MEMORY BUS

PWA19
PWA18
PWA17
PWA16
PWA15
PWA14
PWA13
PWA12
PWA11
PWA10
PWA9
PWA8
PWA7
PWA6
PWA5
PWA4
PWA3
PWA2
PWA1

ROMOE#
ROMWE#

RST#

FCE#

PWA2
PWA4
PWA6

PWA9
PWA11

PWA12
PWA14

PWA17
PWA19

ROMOE#
PWD15
PWD14

PWD5
PWD4

PWD3
PWD2
PWD9

VDD1

JP1

IA20
IA21

ICE#

IRP#

JMP

4
2

R233 0

U17 bypass cap

U16 bypass cap

JMP1

JMP

1
3

R149

3.3K

R150

3.3K

R151

3.3K

R152

3.3K

VDD1

37

13

14

16

A18

17

A17

48

A16

1

A15

2

A14

3

A13

4

A12

5

A11

6

A10

7

A9

8

A8

18

A7

19

A6

20

A5

21

A4

22

A3

23

A2

24

A1

25

A0

28

OE#

11

WE#

12

RST#

26

CE#

R148

3.3K

VPP

WP#

VCC

U18

29LV800D

PROMJET1
PROMJET

1
3
5
7

9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59

BYTE#

A-DQ15

DQ14
DQ13
DQ12
DQ11
DQ10

A20/NC
A19/NC

RY/BY#

2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60

FVPP
FWP#

VDD1

47

PWD15

45

PWD14

43

PWD13

41

PWD12

39

PWD11

36

PWD10

34

PWD9

32

DQ9

PWD8

30

DQ8

PWD7

44

DQ7

PWD6

42

DQ6

PWD5

40

DQ5

PWD4

38

DQ4

PWD3

35

DQ3

PWD2

33

DQ2

PWD1

31

DQ1

PWD0

29

DQ0

10
9

15

27

VSS

46

VSS

FCE#

VDD1VDD1

PWA1
PWA3
PWA5
PWA7
PWA8
PWA10
IRP#
ICE#
PWA13
PWA15
PWA16
PWA18
IA20
IA21
ROMWE#

PWD7
PWD6
PWD13
PWD12

PWD11
PWD10

PWD1
PWD0PWD8

Short JP1 3-4 when writing flash

3

Short JP1 1-2 for write protect. For AMD single power flash,

1

this jumper is not use d .

R144

3.3K
R145

3.3K

VDD1

C189

0.1

VDD1

2

Short JP2 when using PROMJET or ICE ROM Emualtor,

4

open it when using flash normally.

VDD1

VDD1

VDD1

C190

0.1

VDD1

D12
DIODE

SW3 NMI

C232

0.1

C233

47uF

R179

VDD1

SW1
NMI

C188

0.1

4
5

0

R178
0_NS

UDB
74ACT32

R146

3.3K

RNMI

RNMI

6

UDA
74ACT32

1

2

HD1

1
3

3

R153
200

2
4

HD2

R147

3.3K

PWNMI

RST#

1 2 3 4 5 6 78

PWNMI

RST#

8

D

9

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-18 -

7654321

KEY0
KEY2
KEY4
KEY6

KEY7
KEY5
KEY3
KEY1

KBD BUS

+12

C193

0.1

U18 bypass cap

+12 is 12V power supply

CN2

1
2
3

CON3

KBD_BUS

9

R163
10K

R164
10K

VDD1VDD1VDD1VDD1VDD1VDD1VDD1VDD1

R165
10K

D

VDD1

KBD1

KBD

1
3
5
7
9

R158
10K

2
4
6
8
10

R159
10K

R160
10K

R161
10K

R162
10K

R169
10K

+12

84

UEA
LM358

3
2

R168
10K

1

UDC
74ACT32

9

10

8

R170
2K

BKLIGHT1

R188
2K

BKLIGHT

R190
300R

VCC

C250

R154

R171
3K

510

Q7
T3904

R48
2K

100uF/16v

R155
0

R46
2K

R47
2K

Q5
9014

PWMOUT

R166
10K

C192

0.1

R167
10K

C

VDD1

C196
47uF/16V

D11
1N4148

B

9
3

3

PWMOUT
BKLON

LCDON

PWMOUT

BKLON

LCDON

R172

3.3K

C194

MOSFET1
MOSFET P

11223

3

+12

R173

3.3K

0.1

Q6
9014

Q8
J279

C197

1000uF/16v

M5V

LCDVCC

C195

0.1

A

1 2 3 4 5 6 78

8

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-19 -

7654321

CON30

DISPLAY PORT

TTL1

DRO1

1 2

DRO3

3 4

DRO5

5 6

DRO7

7 8
9 10

DGO1

11 12

DGO3

13 14

DGO5

15 16

DGO7

17 18
19 20

DBO1

21 22

DBO3

23 24

DBO5

25 26

DBO7

27 28
29 30

D-HS D-EN

31 32

DCLK

33 34
35 36

HEADER 18X2_NS

DRE1
DRE3
DRE5
DRE7

DGE1
DGE3
DGE5
DGE7

DBE1
DBE3
DBE5
DBE7

TTL2

112
334
556
778
9910
111112
131314
151516
171718
191920
212122
232324
252526
272728
292930
313132
333334
353536

HEADER 18X2_NS

9,11

D-PORT

D

51

VDD VOO VNN

C198

C199

0.1

C

Bypass caps for U20

C200

0.1

0.1

C201

0.1

AGND AGND

C202

0.1

C203

0.1

C204

0.1

C205

0.1

Bypass caps for U21

C206

0.1

VNNVOOVDD

C207

0.1

AGNDAGND

DRE1
DRE2
DRE3
DRE4
DRE5
DRE6
DRE7

DGE0
DGE1
DGE2
DGE3
DGE4
DGE5
DGE6
DGE7

DBE0
DBE1
DBE2
DBE3
DBE4
DBE5
DBE6
DBE7

D-HS
D-VS
D-EN

DCLK

R0

52

R1

54

R2

55

R3

56

R4

3

R5

50

R6

2

R7

4

G0

6

G1

7

G2

11

G3

12

G4

14

G5

8

G6

10

G7

15

B0

19

B1

20

B2

22

B3

23

B4

24

B5

16

B6

18

B7

27

HSYNC

28

VSYNC

30

ENABLE

25

CNTRL

31

CLOCK

B

VOO is 3.3V LVDS power for U20 and U21,

A

DRO0
DRO1
DRO2
DRO3
DRO4
DRO5
DRO6
DRO7

DGO0
DGO1
DGO2
DGO3
DGO4
DGO5
DGO6
DGO7

DBO0
DBO1
DBO2
DBO3
DBO4
DBO5
DBO6
DBO7

D-HS
D-VS
D-EN

DCLK

51

R0

52

R1

54

R2

55

R3

56

R4

3

R5

50

R6

2

R7

4

G0

6

G1

7

G2

11

G3

12

G4

14

G5

8

G6

10

G7

15

B0

19

B1

20

B2

22

B3

23

B4

24

B5

16

B6

18

B7

27

HSYNC

28

VSYNC

30

ENABLE

25

CNTRL

31

CLOCK

VDD

9

VCC1VCC

U19
DS90C383A

R/F

GND5GND13GND21GND29GND

17

VDD

9

VCC1VCC

U20
DS90C383A

R/F

GND5GND13GND21GND29GND

17

LVDSON

3

LVDSON

32

26

TXE0PDRE0

47

OUT0

PWDN

LVDSON

PWDN

OUT0

OUT1
OUT1

OUT2
OUT2

OUT3
OUT3

CLKOUT
CLKOUT

LVDSVC

LVDSGD
LVDSGD
LVDSGD

PLLVCC

PLLGND
PLLGND

OUT0
OUT0

OUT1
OUT1

OUT2
OUT2

OUT3
OUT3

CLKOUT
CLKOUT

LVDSVC

LVDSGD
LVDSGD
LVDSGD

PLLVCC

PLLGND
PLLGND

VCC

53

32

26

VCC

53

TXE0M

48

TXE1P

45

TXE1M

46

TXE2P

41

TXE2M

42

TXE3P

37

TXE3M

38

TXECP

39

TXECM

40

VOO

44

36
43
49

AGND

VNN

34

33
35

AGND

TXO0P

47

TXO0M

48

TXO1P

45

TXO1M

46

TXO2P

41

TXO2M

42

TXO3P

37

TXO3M

38

TXOCP

39

TXOCM

40

VOO

44

36
43
49

AGND

VNN

34

33
35

AGND

LVDS BUSDISPLAY PORT

TXE3P
TXE3M

TXECP

TXECM
TXE2P

TXE2M
TXE1P

TXE1M

TXE0P
TXE0M

LCDVCC

TXE3P

TXE3M
TXECP
TXECM

TXE2P

TXE2M

TXE1P

TXE1M

TXE0P
TXE0M
TXO3P

TXO3M

TXOCP

TXOCM

TXO2P
TXO2M
TXO1P
TXO1M

TXO0P
TXO0M

9,12

+5V

CON1

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

CON2

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

CON30_NS

1 2 3 4 5 6 78

8

DRO0
DRO2
DRO4
DRO6

DGO0
DGO2
DGO4
DGO6

DBO0
DBO2
DBO4
DBO6

D-VS

DRE0

2

DRE2

4

DRE4

6

DRE6

8
10

DGE0

12

DGE2

14

DGE4

16

DGE6

18
20

DBE0

22

DBE2

24

DBE4

26

DBE6

28
30
32
34
36

LCDVCC

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-20 -

7654321

D

VSS

L26
FB

VSS +5

C209
47uF/16V

GND

+5

L27
FB

VCC +12

C217

C210

100uF

47uF/16V

GND

VCC

C221
470uF

C218
100uF

+12VCC

C222
470uF

VCC1

IC5
LT1117

VIN3VOUT

R174
300

2

ADJ

1

V125ADJ

VLL is 1.8V core power of U15,

R175
680

L29
FB

VPPVLL

L30
FB

C

POWER1

8
7
6
5
4
3
2
1

CON8

VCC

M5V

+12

VCC1

C219
470uF

VCC1

C225
100uF

VDD1

C226
100uF

C124
470uF

VDD1

VCC1

CN11

1
2
3

CON3

J28' and J28" are supplementary power sockets

B

VCC

IC4
LT1085CM

VIN3VOUT

1

GND

VDD

1 2

2

V33VT

L32
FB

VDD

L36
FB

VDD

C220
100uF

V33VT

VDD

C223
470uF

C224
470uF

VDD

C213
47uF/16V

+3.3VOOVNN

GND

VNN

L33
FB

GND

C212
47uF/16V

GND

VOO

L34
FB

+3.3

L37
FB

C214
47uF/16V

IC7
LT1117

VIN3VOUT

ADJ

1

IC8
LT1117

VIN3VOUT

ADJ

1

L31
FB

2

VEE is 3.3V PLL power for U10

L35
FB

2

VFF is 3.3V analog power for U10

VPPVLL

GND

C215
47uF/16V

C231
100uF/16V

CK3 is the decoupling cap for VLL,

GND

GND

VEEVEEVCC1

C211
47uF/16V

VFFVFFVCC1

C216
47uF/16V

A

1 2 3 4 5 6 78

8

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-21 -

3300UF35V

R37
100K

R48
1K

C51

1000UF10V

R49
1K

L17
5UH

54321

GND

5UH

L14

C44,C45

2200UF25V

L15

10UH3A

C59,C60

2200uF25V

10UH1A

1000UF10V

L16

L11
5UH

1000UF10VU6LM1085IT-3.3

SB

5UH8A

C46

1000UF10V

CN2

C60

C50

3300UF35V

C58

0.1

C44

C55

0.1

C53

L13

1000UF10V

C56

1000UF10V

C41

C45

C42

0.1

0.1

D

RS606

D1

C

RT1

C3

20mH3A

2200P

8OH5A

L1

C1

2200P

B

20mH3A

C54

0.22UF275V

L2

C4 0.68UF/275V

RV1

1

2

10D471

CN1

IN:AC 100V-240V

5A500V

C5

105/400V

L3

磁珠500欧

FU1

L4

400UH2A

R1

1K

3.15A/250V

C11

100UF25V

D2

MUR480E

C4

D5

1N4007

C10

0.01

R9

0.51 5W

U2

8

7

6

5

R8

D7

D6

MBR1100

0.1UF400V

C6

0.22

R2

12K

NCP1203P60

R14

1M

R15

1M

10

1N5819

L5

L7

磁珠500欧

C28

100uf25v

R27

10K

Q4

C7

100UF/450V

NCP1377DR2

C25

D8
MUR180E

C15

150P1KV

R13

0.51/5W

磁珠500欧

R31

0R

C28

100UF25V

ZD2

15V 1/2W

C64

58

U3

14

CA1

100P

100P

R17
68K5W

10

R21

D11
MBR1100

C18

R33

2

3

6

5

R10

R18

D13

104/50V

C22

1

.

100uF450v

FR107

300

R25

100P

47UF/25V

10

Q3

MTP50P03HDL

2K

100R

10UF50V

D3

MUR860T

Q1

FQP18N50

D4

1N4148

8

MC33260D

1

C8

1000PF

1

2

3

4

C9

150pf1kv

R3

10

47

7

U1

2

L4

47k

6

3

磁珠500欧

C12

0.1

5

4

C20

C16

103 1KV

68UF450V

FQP7N80

R12

1K

R11

C13

47K

101

C23

C19

103/1KV

R26

47K

D9

10

C17

T1

R7

1N4148

R19
10

15V 1/2W

11,129,107,8

4

5

ZD1

D18

MBR20100

R23
10

D12

MUR180E

Q2

R16
47K

0.24/5W

5UH

C33，C36

25V/2200uF

PH1

PC817B

PC817B

STW12NK80Z

C26

2200P

R20

68K/5W

150p1kv

R24

L9

1

2

3

4

6

.

C21

25V/2200uF

C43

PH2

C29

2200P

R53
1K/1W

333_NS

T2

C30

PH3

D17

MBR20100

R30

100_NS

1K

R22
1K

R29

9101112

C37

2200PF200V

R55

PC817B

Q12
MTP50P03HD

R41

5.1k

R42

1K

47R2W

TL431ACLP

Q13

2N5551

R44

1.5K

Q4
2N5551

C62 221/1KV

R36

4.7K

R35
1K

R54
10K

L8
5UH

C32,C35

25V/2200uF

C27

0.1

U4

D10

MBR20200

R56 10K

C24
0R

R28

4.7K

U5

TL431ACLP

C40

25V/2200uF

R39

5.1K

L12
5UH/5A

3300UF/35V

C61,47

C31

104

Q9
MTP50P03HD

R46

5.1K

R43
2K

2N5551

Q14

R38

51K

R34

6.2K

2N5401

C49

Q11

A

1 2 3 4 56

0.1UF50V

CN5,CN8
HDR1X10

CN6
HDR1X8

HDR1X2
CN4

CN7
HDR1X5

CN3
HDR1X3

6

OUT 24V/5A

GND
GND

+5
+5
+5
+5

+11~16V
+11~16V

+5

G

GND

+11~16V
+11~16V
GND
GND
+5

+5

+3.3

GND

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

-22 -

CN1

1
2
3
4

470uF/16VC30.1

CON4

D

VHH

IF

C2
100pF

C

TV_AUDIO

PHO

3
2
1

CON3

R22

10K

R23

AV-AR

10K

AV-AL

SR

SL

AGND

PR
PL
PR

PL

SCART_R

SCART_L

B

SDA
SCL

RST1#

TV_AUDIO

R24
10K

A

L2

VCC1

FB

CN2

3

C14

C15

HD-AR
HD-AL

PC-AR
PC-AL

VCC

56pF

56pF

R26
10K

R27
10K

CON3

C12

Q5
9014

2
1

0.33

VCC

C28

0.1

C1

R1
1K

C13
56pF

R2 1K

C4

0.33

C5

0.33

C6

0.33

C7

0.33

C8

0.33
C9

0.33
C10

0.33
C11

0.33

VBB

C49
100uF/16V

AGND1

R3
10K

R25
10K

IF
AGND
TV_AUDIO

67
68
69

60

57
56

54
53

51
50

48
47

73
74
77
78

80
79

4

5

7

17

6

8

9

10

3

2

21

CN6

AV-IN

2

AGND4

1

CON2

VCC

ANA_IN1+
ANA_IN­ANA_IN2+

MONO_IN
SC1_IR

SC1_IL
SC2_IR

SC2_IL
SC3_IR

SC3_IL

SC4_IR
SC4_IL

TP
AUD-CL_OUT
D_I/O1
D_I/O0

STANDBYQ
A-SEL

12S_CL
12S_WS
12S_I1
12S_I2
12S_DO

ADR_DA
ADR_WS
ADR_CL

SDA
SCL

RESET

DVSUP11DVSUP12DVSUP13AVSUP65AVSUP

DVSS14DVSS15DVSS16AVSS61AVSS62AHVSS43AHVSS44VREF135VREF226ASG49ASG52ASG

AGND1AGND1

C55

L-R

100uF/16V

CN7

2
1

CON2

VCC1 VBB

TV_VIN

66

TV_VIN
AGND3

39

AHVSUP

AGND1

C59

100uF/16V

CAPL_M

CAPL_A

XT_OUT

XT_IN

SC1_OR
SC1_OL

SC2_OR
SC2_OL

DACM_R

DACM_L

DACM_S

DACA_R

DACA_L

VREF-T
AGNDC

TEST

CN10

SL
AGND
SR
SCART_L
AGND
SCART_R

X1

DACM-R

DACM-L

VCC

VBB

R12
220R

CN3

2
1

CON2

C16
10uF

C17
10uF

C22
20pF

C23
20pF

C21
10uF
C34

0.1
C47

4.7
C35

0.1

AGND1

Q6

9014

C60

100uF/16V

6
5
4
3
2
1

CON6

U1

40

38

72

18.432

71

36
37

33
34

27

28

30

24

25

58

45
70

3450

55

R28

1K

R4
10K

CN5

AGND

DACM-R

DACM-L

VHH

R32
2K

TV_VIN1

L4
FB

D1

IN4148

4
3
2
1

CON4

470u/16V

R31

5.1K

R33
1K

C26
1nF

C27
1nF

VOL-R

VOL-L

C51

RST1#
SCL
SDA

MUTE

AGND

VCC1 VCC

RST1#

VHH

VCC

C18
10uF

The bypass caps for U5. DVSUP, AVSUP and AHVSUP pin each has 3 caps.

AGND1

R18
47K

R19

47K

Q4 9015
R29
10K

Q8
9014

C29

0.1uF/16V

C30

0.1uF/16V

R21

R20

47K

47K

R13

3K

R30
3K

Q7
9014

C31

0.1

AMPIN-L

AMPIN-R

C61
220uF

R34

100R

Q1
9014

C37
470pF

VHH

IC1

R9
3K

C52

1.5nF

R7
10K

C48

R8

22uF

10K

LT1117

VIN3VOUT

R6

Q3

3.3K

9014

2

ADJ

1

V125ADJ

VHH

VCC1 VBB

C19
10uF

VHH

3

U2

8

VCC1

IN1+

6

IN2+

9

IN3+

12

IN4+

5

MODE2

10

MODE1

13

CIV

11

SVR

C42
220uF

7

C32

0.1

SGND

R10
560R

C41
470uF

16

L3
FB

VCC2

OUT1+

OUT2-

OUT4+

OUT3-

GND2

GND1

C38
470pF

7654321

MUTE

VBB

C36

0.1

C53

1.5nF

1

4

17

14

15

2

CON6

5

C40

0.1

VHH

C43

1000uF

C20
10uF

R351KR361KR371KR38

1 2 3 4 5 6 78

VHH

1000uF

CN8

CN9

1K

A.1

8

VHH

VHH

C56

C57

C58

1000uF

C54

1.5nF

D

C

B

A

1000uF

C39

C33

0.1

470pF

AGND1

1
2

CON2

1
2

CON2

Model No.: LCT-27KXSTP
Version: 1.0

-23 -

7654321

D

C

C1

100u/16V

+5V

B

AGND

L1
10uH

C2

0.1

C4

100u/16V

VTT

AGND

C3

0.1

SCL
SDA

TV-VIN

M5
TUNER

112233445566778899101011111212131314

SCL
SDA

VTT +5VGND

TV-VIN

14

TV-AUDIO

IF

+5V
SCL
GND
GND
SDA
IF

GND
TV-VIN
TV-AUDIO

CN1

1
6
2
7
3
8
4
9
5

DB9

A

1 2 3 4 5 6 78

8

D

C

B

A

Model No.: LCT-27KXSTP
Version: 1.0

PCB BOARD

-24 -

Model No.: LCT-27KXSTP
Version: 1.0

-25 -

Model No.: LCT-27KXSTP
Version: 1.0

-26 -

Model No.: LCT-27KXSTP
Version: 1.0

-27 -

Model No.: LCT-27KXSTP
Version: 1.0

-28 -

Model No.: LCT-27KXSTP
Version: 1.0

-29 -

Model No.: LCT-27KXSTP
Version: 1.0

-30 -

Model No.: LCT-27KXSTP
Version: 1.0

-31 -

Model No.: LCT-27KXSTP
Version: 1.0

-32 -

Model No.: LCT-27KXSTP
Version: 1.0

-33 -

Model No.: LCT-27KXSTP
Version: 1.0

EXPLODED VIEW

-34 -

Model No.: LCT-27KXSTP
Version: 1.0

-35 -

PART LIST

No Part Name Qty

1 Machine screw 4*6 KM (B) 7

2 Rubber foot Φ20*4 6

3 Machine screw 4*8 KM (B) 8

4 Support plate 1

5 Decorate panel 2

6 Self-tapping screw 3*10 P/T (B) 6

7 Support base (AL) 1

8 Back door 1

9 Back cover 1

10 Support bracket (AL) 1

11 Support bracket (3) 1

12 Machine screw 4*8 B/M (W) 2

13 Machine screw 4*6 K/M (B) 6

14 Self-tapping screw 3*10 K/T (B) 2

15 Toner front cabinet 1

16 Toner main PCB 1

17 Toner rear cabinet 1

18 Self-tapping screw 3*8 K/A (B) 4

19 Machine screw 5*10 B/M (B) 4

20 Stator tach 4

21 Machine screw 5*16 B/M (B) 2

22 Rear cabinet 1

23 Self-tapping screw 4*25 B/T (B) 4

24 Machine screw 3*6 BM (W) 4

25 Power PCB 1

26 Power PCB shield can 1

27 Machine screw 3*6 BM (W) 8

28 Machine screw 3*6 BM (W) 4

29 Power PCB bracket 1

30 Support bracket (2) 1

31 Machine screw 4*8 KM (B) 8

32 Machine screw 3*6 BM (W) 6

Model No.: LCT-27KXSTP
Version: 1.0

-36 -

No Part Name Qty

33 Shield can (1) 1

34 Shield can (4) 1

35 Machine screw 3*6 BM (W) 7

36 Machine screw 3*6 B< (W) 4

37 Main PCB 1

38 Sink (1) (AL) 1

39 Sink bracket 2

40 Machine screw 3*8 B/M (B) 4

41 AMP PCB 1

42 Machine screw 3*6 B/M (B) 4

43 Machine screw 3*6 B/M (B) 2

44 AC socket 1

45 Main PCB bracket 1

46 Machine screw 3*6 B/M (B) 4

47 Machine screw 3*6 B/M (B) 6

48 Shield can (2) 1

49 Support bracket (1) 1

50 LCD bracket (right) 1

51 PCB bracket 1

52 Machine screw 4*14 B/M (B) 4

53 LCD 1

54 LCD bracket (top) 1

55 Machine screw 3*12 KM (B) 4

56 LCD bracket (left) 1

57 LCD bracket (bottom) 1

58 Front cabinet 1

59 Speaker back cabinet 2

60 Self-tapping screw 4*10 B/T (B) 8

61 Eva 400*8*1.5 2

62 Self-tapping screw 4*12 B/T (B) 8

63 Self-tapping screw 3*10 P/T (B) 21

64 PMMA back plate 1

65 Self-tapping screw 2*6 O/T (B) 12

66 Decoration panel (AL) 2

67 Speaker 2

68 Speaker cover 2

69 Self-tapping screw 4*10 B/T (B) 8

Model No.: LCT-27KXSTP
Version: 1.0

-37 -

No Part Name Qty

70 PMMA front plate 1

71 Speaker front cabinet 2

72 Speaker WEB 2

73 Function knob 1

74 Self-tapping screw 3*8 B/T (B) 3

75 Key PCB 1

76 Power switch 1

77 Serial port PCB 1

78 Machine screw 3*6 B/M (B) 4

Model No.: LCT-27KXSTP
Version: 1.0