background image

1

2

3

4

A

B

C

D

4

3

2

1

D

C

B

A

Title

Number

Revision

Size

B

Date:

5-Nov-2003

Sheet    of

File:

F:\temp2\A-USER\PW130.SCH

Drawn By:

DVDD1

1

DGND1

2

DVDD1

3

DGND1

4

NC

5

AVDD

6

NC

7

NC

8

AGND

9

NC

10

NC

11

AGND

12

NC

13

NC

14

AGND

15

NC

16

NC

17

AVDD

18

DGND1

19

DVDD1

20

P

GND

21

PV

D

22

FIL

T

23

PV

D

24

P

GND

25

PV

D

26

P

GND

27

AL

VDD

28

AL

VDD

29

AL

GND

30

AL

GND

31

AVDD

32

AVDD

33

AGND

34

AGND

35

AVDD

36

RA

IN

37

AGND

38

AVDD

39

AGND

40

AVDD

41

AGND

42

GAI

N

43

S

OGI

N

44

AGND

45

AVDD

46

AGND

47

AVDD

48

AGND

49

BA

IN

50

AGND

51

AVDD

52

RXD

53

TXD

54

VPEN

55

VYUV7

56

VYUV6

57

VYUV5

58

VYUV4

59

VYUV3

60

VYUV2

61

VYUV1

62

VYUV0

63

VSYNC

64

HSYNC

65

DB7

66

DB6

67

VDDQ3

68

VSSQ

69

DB5

70

DB4

71

VCLK

72

DB3

73

DB2

74

VDD1

75

VSS

76

DB1

77

DB0

78

DG7

79

DG6

80

DG5

81

DG4

82

VDDQ3

83

VSSQ

84

DG3

85

DG2

86

DG1

87

DG0

88

DR7

89

DR6

90

DR5

91

DR4

92

DR3

93

DR2

94

VDD1

95

VSS

96

DR1

97

DR0

98

DGB7

99

DGB6

100

DVS

101

DHS

102

DEN

103

VDDQ3

104

V

SSQ

105

DC

L

K

106

DC

L

KNE

G

107

DGB

5

108

DGB

4

109

DGB

3

110

DGB

2

111

DGB

1

112

DGB

0

113

DGG7

114

DGG6

115

DGG5

116

DGG4

117

DGG3

118

DGG2

119

DGG1

120

DGG0

121

VDDQ3

122

V

SSQ

123

DGR

7

124

DGR

6

125

DGR

5

126

DGR

4

127

DGR

3

128

DGR

2

129

DGR

1

130

DGR

0

131

R

E

S

ET_

N

132

VDDQ3

133

V

SSQ

134

VDD1

135

VS

S

136

TES

TEN

137

TD

O

138

TD

I

139

TMS

140

TC

K

141

TR

S

T

_

N

142

D15

143

D14

144

D13

145

VDD1

146

VS

S

147

D12

148

D11

149

D10

150

D9

151

D8

152

D7

153

D6

154

D5

155

D4

156

D3

157

D2

158

D1

159

D0

160

A19

161

A18

162

A17

163

A16

164

VDDPA2

165

VSSPA2

166

VDDPA1

167

VSSPA1

168

XI

169

XO

170

VDDQ3

171

VSSQ

172

VDD1

173

VSS

174

A15

175

A14

176

A13

177

A12

178

A11

179

A10

180

A9

181

A8

182

A7

183

VDD1

184

VSS

185

VDDQ3

186

VSSQ

187

A6

188

A5

189

A4

190

A3

191

A2

192

A1

193

NMI

194

WR

195

RD

196

ROMOE

197

ROMWE

198

CS0

199

CS1

200

PORTA7

201

PORTA6

202

PORTA5

203

PORTA4

204

PORTA3

205

PORTA2

206

PORTA1

207

PORTA0

208

U18

PW130

DVDD1

VDDQ3

VDDQ3

V18

VDDQ3

V18

V18

V18

VDDQ3

V18

AVDD

DVDD1

V18

VDDQ3

AVDD

V18

GND

GND

L303

22uH

R311

3.3K

C318

39n

C319
3.9n

GND

C310

47n

C309

47n

C307
47n

C308

1n

RAIN

GAIN

BAIN

TXD
RXD

R310

3.3K

GND

PI5V330A

PI5V330B

HOLD

BKLON

LVDSON

LCDON

POWERON

VSYNC

HSYNC

DBE<7:0>

DGE<7:0>

DRE<7:0>

DBE7

DBE6

DBE0
DBE1
DBE2
DBE3

DBE4
DBE5

DGE0
DGE1
DGE2
DGE3

DGE4
DGE5
DGE6
DGE7

DRE0
DRE1
DRE2
DRE3

DRE4
DRE5
DRE6
DRE7

R339

3.3K

GND

DEN

DHS

DVS

DCLK

RESET

R309

3.3K

D<15:0>

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

C303

10V 22u

C305

10V 22u

C304

0.1u

C306

0.1u

L301

22uH

L302

22uH

GND

R308

1.5M

Z301

14.318

C302

18p

C301
18p

GND

VDDQ3

V18

VDDQ3

VDDQ3

DVDD1

V18

AVDD

VDDQ3

A<19:1>

NMI

ROMOEn

ROMWEn

OE1

1

OE2

19

I0

2

I1

3

I2

4

I3

5

I4

6

I5

7

I6

8

I7

9

VCC

20

O0

18

O1

17

O2

16

O3

15

O4

14

O5

13

O6

12

O7

11

GND

10

U12

74LVC541A

X301

R302

3.3K

R303

3.3K

R307
3.3K

R3043.3K

R305

3.3K

R306

3.3K

GND

D0
D1
D2
D3
D4
D5
D6
D7

PWM

IR

SCL
SDA

REQ

SCL1

SDA1
FLASHID

C621

0.1u

C622

0.1u

C623

0.1u

C625

0.1u

C620

10V 47u

GND

C624
10V 100u

C626

0.1u

C627

0.1u

C628

0.1u

C629

0.1u

C630

0.1u

C631
0.1u

C632

0.1u

C633

0.1u

C634

0.1u

C317

0.1u

C313
0.1u

C312
0.1u

C316
0.1u

C315

0.1u

C314
10V 22u

GND

C635

10V 100u

C636

0.1u

C637

0.1u

C638

0.1u

C639

0.1u

C640

0.1u

C641

0.1u

C642

0.1u

GND

C643

10V 100u

C644

0.1u

C645

0.1u

C646

0.1u

C647

0.1u

C648
0.1u

C649

0.1u

GND

A15

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

1

A16

A17

A18

A19

R313

47

R314

47

R315

47

R312

47

R316 100
R317 100
R318 100
R319 100
R320 100
R321 100

R322
3.3K

R323
3.3K

R325

3.3K

R326
3.3K

VDDQ3

R338

47R

R337

47R

R336

47R

R335
47R

R334

47R

R333

47R

POWER

GND

R345
3.3K

VDDQ3

BUSY

VDDQ3

C350

10V 47u

C351

0.1u

GND

GND

AVDD

X302

1

DBO<7:0>

R324

3.3K

DBO<7:0>

DGO<7:0>

DRO<7:0>

DBO0
DBO1
DBO2
DBO3
DBO4
DBO5
DBO6
DBO7

D

GO0

D

GO1

D

GO2

D

GO3

D

GO4

D

GO5

D

GO6

D

GO7

DR

O

0

DR

O

1

DR

O

2

DR

O

3

DR

O

4

DR

O

5

DR

O

6

DR

O

7

R331

47R

R332

47R

R330
47R

R329

47R

R327

47R

R328
47R

VD301

IN4148

R340 3.3K

5

8

Содержание LC20H15

Страница 1: ...LCD TELEVISION LC20H15...

Страница 2: ...Adapter FSP060 1A 1 615 10483 03 Stand Assy 1 667 L20H3 14A Backlight Board 1 FLM 2011 Functional Board List LCD Plasma Televisions Please note that this BOM list may vary from the original documentat...

Страница 3: ...hooting Method of software upgrading Briefing on LC20H15 and its working principle Wiring diagram Serial NO of parts Identification criteria for the bright spot and dark spot of the LCD screen Trouble...

Страница 4: ...t will cause fire or damage to the set 2 4 Never operate the set or do any installation work in bad environment such as wet bathroom laundry kitchen or nearby fire source heating equipment and devices...

Страница 5: ...e tabulated as follows Temperature Scope for operation 0 50 C Scope for storage 20 60 C humidity Scope for operation 20 85 Scope for storage 10 90 2 13 Display of a fixed picture for a long time may r...

Страница 6: ......

Страница 7: ...ss to 50 and contrast to 50 Adjust the line center and the field center so that the picture is correctly positioned h Input signal of 16 gray grades Gray H 16 Enter the factory menu and perform calibr...

Страница 8: ...0I 50 Hz 480I 60 Hz separately and check if the picture and sound is normal 8 Preset ex works In the status of TV enter the factory menu by pushing the factory key and then perform presetting 9 Ex wor...

Страница 9: ...e liquid crystal TV set and make proper adjustment according to the signal types Picture too bright and there is distortion in the brightest area Check if the contrast setting is too high Possibly the...

Страница 10: ...may lead to incorrect display of the liquid crystal TVIn this case please press auto key on the remote control so as to enable the liquid crystal TV set to recheck the signal and then to display corr...

Страница 11: ...it s ready to run For other settings please refer to the Fig Above already defaulted by the system normally no need to change 4 Switch on TV set the FLASH write program begins to run 5 After FLASH wri...

Страница 12: ...n42 PIN43 PIN44 Audio frequency signal is processed with sound in IC N1 VCT3833 Pin19 and then output through MSP3420G Pin28 Pin27 to SRS for surround sound processing in IC N6 M62494E Finally it is s...

Страница 13: ...ROCESS CHIP C BUS VIDEO OUT CRYSTAL 20 25M VIDEO DECODING C BUS C BUS TUNER ANTENNA Supply 12V to LCD panel supply 12V to backlight and power amp sound processing c BUS SPEAKER EARPHONE OUTPUT POWER...

Страница 14: ...h various kinds of three terminal stabilizing integrated circuits is output as 1 8 V and 2 2 V U3 is a power supply managing IC which cuts off the 5 V output in the case of standby so as to keep low p...

Страница 15: ...broad band chroma etc for the use of S VHS broad band broad chroma If self adaptive comb filter is used to carry out high quality Y C separation then the color decoder conducts the processing in S VHS...

Страница 16: ...sound processing from analog IF signal input to AF OUT audio output after processing is performed in this single chip The sound signal of TV AV S VIDEO Y Pb Pr VGA is input through the ports of MSP34x...

Страница 17: ...d restore the stereo sound that is taking place at the site It is a patented sound technology of SRS Lab USA The signal is fed to pins 1 and 2 of M62494 through pins 27 and 28 of MSP34x0 After process...

Страница 18: ...cy amplifier of category D The gains scope provided is 40dB to 36dB Supply voltage is 12V The input of the amplifier is differential input any noise at the two input sides of the channel can be elimin...

Страница 19: ...and with phased in and phased out function PW1306 includes an 80X86 CPU 16 bit micro processor with interruption port universal I O ports VART port IR decoder PWM output port and timer and a memory po...

Страница 20: ...Memory Out Bus Mem ory Buffer Processor Mem ory Interface Memory In Bus OSD PW1306 Video ImageProcessor Internal Block Diagram ADC Sync Processing HS SOY Stripper PLL CLK A D Clamp A D Clamp VS Pow er...

Страница 21: ...18 WIRING DIAGRAM...

Страница 22: ...point if its area exceeds 1 2 of a single picture element R G B 2 Definition of bright spot It is identified as a bright spot if it is bright in the state of dark field and its bright size remains un...

Страница 23: ...signal Check whether U1 pin 11 have output waveform Check N8 pin3 pin 5 s input signal Replace N8 Yes No Yes No No No Yes No No 20 Troubleshooting guide No raster Does the logo appear on the screen wh...

Страница 24: ...B Hors Vers at X7 Check whether N1 has 5V power supply Check whether X9 pin 1 pin 2 have 5V power input Replace N2 Replace V105 V17 Replace N1 Measure N1 pin 33 pin 35 waveform Measure N1 pin 42 pin...

Страница 25: ...YNC VSYNC PI5V330A PI5V330B IR ROMWEn ROMOEn A 19 1 D 15 0 NMI LVDSON DRE 7 0 DRO 7 0 DGE 7 0 DGO 7 0 DBE 7 0 DBO 7 0 DCLK DVS DHS DEN BLKON PWM LCDON RXD TXD HOLD FLASHID SDA1 SCL1 BUSY POWER REQ PW1...

Страница 26: ...10V100u AVDD L103 STPB 300 V5 C117 0 1u L108 6 8uH C119 0 1u L106 STBH 181 C115 10V47u L107 STBH 102 C127 0 1u L110 22uH C129 10V100u LCDON LVDSON VD104 IN4148 VD105 IN4148 S1 1 G1 2 S2 3 G2 4 D2a 5...

Страница 27: ...7 VCC 8 U11 24LC21 R220 10K C210 0 1u 1 2 3 4 5 6 GND 7 8 9 10 11 12 13 AVDD 14 U6 74HC14A L202 751H L201 751H R231 22 R230 22 R232 2 2K R233 2 2K C221 22p C220 22p C222 0 1u C223 10V 10u R G B H V X...

Страница 28: ...PORTA3 205 PORTA2 206 PORTA1 207 PORTA0 208 U18 PW130 DVDD1 VDDQ3 VDDQ3 V18 VDDQ3 V18 V18 V18 VDDQ3 V18 AVDD DVDD1 V18 VDDQ3 AVDD V18 GND GND L303 22uH R311 3 3K C318 39n C319 3 9n GND C310 47n C309...

Страница 29: ...10K R502 3 3k GND VDDQ3 VDDQ3 V5 VDDQ3 VDDQ3 GND GND GND GND GND GND GND 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...

Страница 30: ...n By C608 0 1u C607 16V 100u 1 2 3 4 X602 R609 51 R610 51 GND V5 TXD RXD X603 GND BUSY SCL1 SDA1 1 REQ PGND2 LCDVCC 1 2 3 4 X604 GND V5 SDA SCL X901 C901 10V22u C902 0 1u 1 2 3 U901 HWJS538 VD901 R901...

Страница 31: ...P4 HEADER 20X2 VDDQ3 VDDQ3 DBO 7 0 DBE 7 0 DGO 7 0 DGE 7 0 DRE 7 0 DRO 7 0 DCLK PWM LCDON BKLON SCL LVDSON DEN DHS DVS RESET SDA LCDVCC C706 10V 100u VD701 IN4148 VD702 IN4148 VD703 IN4148 R706 100K R...

Страница 32: ...3 2K R12 3K9 C43 220n C42 100n C40 470p SRS STEREO SRS MONO ROUT1 LOUT1 LOUT1 ROUT1 L4 33uH C83 16V 10u L12 10uH 1 GND 2 3 GND 4 5 GND 6 Hs 7 GND 8 Vs 9 R G B X7 GND R109 10K C153 1n C154 25V 470u R10...

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