Philips 20-LCD TV 20PF9925 Manual de usuario

Published by TA 0260 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12520

©

retrieval system or transmitted, in any form or by any means, electronic,

mechanical, photocopying, or otherwise without the prior permission of Philips.

Colour Television

20PF9925/12S/19S

AA

Contents Page

Block Diagram

Adjustment Instructions

Troubleshooting

Exploded View

Exploded View Parts List

Replacement Parts List

Circuit diagram, Printed Board Lay-out

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BLOCK DIAGRAM

TUNER

..

. .

DC OUT

(12V) DVD/DTV

(480I/480P) H/P S-VIDEO A/V IN A/V OUT DC IN

(15V) ANT (RF)

Y PB PR L R V L R V L R

SCART JACK

R/G/B/FB L/Rin TV/L/R out

Y/U/V in

VIDEO RAM

2M

EEP

ROM

EEP

ROM

SCALER(Format Converter)

MX88L-284FC-V

14.318MHz

AD Converter

AD9884AKS

Multi-Component

Processor(BBVSP)

CXA 2101AQ

YCrCb : 2 / 4

RGB : 4 / 2

OUT RGB :1, TUV : 1

Audio Processor

MSP-34XX

RF : 2, SCART : 4

MONO : 1

I2S : 2

------18.432MHz---

L-SPK/WOOFER

H/P, I2S

SCART OUT : 2 IC302

SCAN Converter

SDA-9410

27.0MHz

IC301

H- FILTER

(DRP Processor)

LGTV-1001

IC201

Color Decoder/

A/D Converter

VPC-3230D

. COMB/FIL : 4H

INPUT . 4 CVBS . 1 S-VHS

. 2 RGB/YCrCb

. 1 F/B

. 1 CVBS OUTPUT

. Y/Cr/Cb OUTPUT

IC1

MICOM / TXT

6.0MHz

POWER

DC to DC Converter

(SI786,SI4808DY,T801)

30V

5V

SCL

SDA

CVBS

SIF

IF AGC

5V

3.3V

33V

Y/U/V

(480P) Y/U/V

(480P)

0.5-0.7

Y/U/V

4:2:2

Y/U/V

Analog

R/G/B/H/V

Dual Audio AMP

LA4282

L-SPK

R-SPK

R/G/B/FB

TEXT

H/V

(2H)

CLK

5V 3.3V

3.3V

9V

3.3V

3.3V 5V(FOR RESET IC 3,3V)

3.3V 3.3V

8.0V

15V

H-sync

H-Sync.

SEP

3.3V

5.0V

SCART(R/G/B/FB)

DVD-U/V in

AV2 in(CVBS)

S-VHS(VIN1 : Y/C))

M/O(CVBS) RF(VIN3 : CVBS)

SCL1/SDA1

R/G/B

24

RESET 4.2V

SCL/SDA

20.25MHz

DC to AC

INVEERTER

BRI-ADJ TO MICOM

POWER-ON/OFF TO MICOM

15V

480I/P

Detect

R / G / B

8 /8 /8bit

L

C

2

0

1

V

1

-

A

3

LCD PANNEL

IC3

SWITCHING

CXA2040AQ

V-OUT

RF-IN

DVD-Y in(SCART-Vin)

M/O(CVBS) TV/OUT(CVBS)

12V

REG.

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1. Application Object

This instruction is for the application to the LCD TV.

2. Notes

(1) This set uses an adapter, so connect the adapter and the

set correctly before adjustment.

(2) The adjustment must be performed under the correct

sequence.

(3) The adjustment must be performed in the circumstance of

25!5cC of temperature and 65!10% of relative humidity if

there is no specific designation.

(4) The input voltage of the receiver must keep 220V, 60Hz in

adjusting.

(5) The set must be operated for 30 minutes preliminarily

before adjustment if there is no specific designation.

[‘Heat Run’ must be performed with the full white signal or TV

noise signal in the internal part of the set.

[ The time for ‘Heat Run’ can be changed owing to production

plan.

3. Auto RGB Adjustment

3-1. Preparation for Adjustment

(1) Receive the Digital Pattern.

3-2. Adjustment

(1) Select AUTO RGB ADJ by pressing SVC Key of Remote

Control for Adjustment.

(2) Select “A RGB” Item.

(3) Press the VOL + Key to appear “OK”.

4. RGB LEVEL Adjustment

4-1. Using Equipment

(1) Pattern Generator(408NPS-READER) which 10 STEP is

possible.

(2) A Remote Control for Adjustment

4-2. Adjustment

(1) Select RGB LEVEL by pressing SVC Key of Remote

Control for Adjustment.

(2) Adjust that until 9th and 10th STEP is undistinguished by

using VOL +/- Key in R-LVL item.

(3) Adjust G-LVL and B-LVL as same way.

(4) When adjustment is finished, Store it by pressing OK key.

And escape it by pressing TV/AV Key.

5. Using method for CA-110

Use it in case of needing adjustment brightness.

6. OPTION Adjustment

(1) Press YELLOW button,or OP1,OP2,OP3 button on SVC

Remote Controller.

(2) INput data directly by the buttons corresponded with

OPTION 1 ???(0~255),OPTION 2 ??(0~63),OPTION3

???(0~255).

(3) Select each OPTION funtion by the CH Up/Down button.

Table 1. OPTION 1 Function

ADJUSTMENT INSTRUCTION

COLOR

ANALYZER:

CA110

30[cm]

LCD TV

Center of

Screen Input signal of Video

PAL BG 05 CH

NTSC 13 CH

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

SCART

A2 ST

SYS

TOP

I/II SA

TEXT

200 PR

Option Code Function Remark

100 PROGRAM SAVE

200 PROGRAM SAVE

Without TXT

With TXT

No Save DUAL SOUND Condition

Save DUAL SOUND Condition

FLOF TEXT

TOP TEXT

DVD JACK

SCART JACK

NICAM CHECK

NICAM&FM STEREO

B/G,I,D/K

B/G,L/L

B/G,I,D/K,M

RESERVED

All manuals and user guides at all-guides.com

OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

0

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

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

SCART

0

1

0

1

0

1

OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

SCART

1

0

1

0

1

0

1

All manuals and user guides at all-guides.com

OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

SCART

1

0

1

0

1

0

1

OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

SCART

1

0

1

0

1

0

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OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

SCART

1

0

1

0

1

0

OPTION

Data 200

PRO

TEXT

I/II SA TOP A2 ST SYS

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

1

0

1

0

1

0

1

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

SCART

0

1

0

1

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Table 2. OPTION 2 Function

(1) English,German,French,Italia,Spanish

(2) English,Dutch,Swedish,Norwegian,Danish,Swiss,

Portuguess,Romanian,Polish,Hungarian,Czech,Russian

(3) English,French,Arab,Urdu

0

1

0

1

0

1

0

1

2

3

4

5

6

7

Austrailia

Defaut(0)

English

(1)

(2)

English,Farsi

(3)

English,China

ACMS

LANG

BBACK

VOL

Option Code Function Remark

Without ACMS funtion

With ACMS funtion

NORMAL Volume Curve

RUSHED Volume Curve

Without Blue Back

With Blue Back

English only

English+EU4

English+Other EU

FARSI

ARAB+URDU

ENGLISH+CHINA

RESERVED

ACMS

0

1

LANG

5

6

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

0

1

2

3

4

BBACK

0

1

0

1

0

1

VOL

1

0

1

DATA

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

52

53

54

55

56

57

58

59

ACMS

0

LANG

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

0

1

2

3

4

BBACK

0

1

0

VOL

0

1

DATA

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

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Table 3. OPTION 3 Function

ACMS

1

LANG

4

5

6

7

BBACK

1

VOL

1

DATA

60

61

62

63

Defaut(0)

Teletext

Language

INVT

MD SA

MONO

CH+AU

T-LAN

IIC T

PANEL

TSS

KEY

Option Code

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Function Remark

LOCAL KEY(20A20 MODEL)

LOCAL KEY(20LA30 MODEL)

Without TURBO SEARCH funtion

With TURBO SEARCH funtion

LCD PANEL OPTION

RESERVED

Tunning with AFT Voltage

Tunning with ADC of IF IC

INVERTER OPTION

RESERVED

Without LAST MODE SAVE

Witht LAST MODE SAVE

Without Forced MONO sound system

With Forced MONO sound system

Without D/K CHINA or BB system

With D/K CHINA or BB system

WEST Europe

EAST Europe

TURKEY

Czecho/Hungary

Cyrillic 1

Cyrillic 2

Cyrillic 3

Turkey/Greek 1

Turkey/Greek 2

Turkey/Greek 3

Arab/France

Arab/English

Arab/Hebrew 1

Arab/Hebrew 2

Farsi/English

Farsi/France

Farsi all

DATA KEY TSS

PANEL IIC T MD SA

CH+AU

MONO

0

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

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

INVT

0

1

0

1

0

1

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45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

DATA

KEY TSS

PANEL

IIC T

MD SA

CH+AU

MONO

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

INVT

1

0

1

0

1

0

1

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

DATA

KEY TSS

PANEL

IIC T

MD SA

CH+AU

MONO

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

INVT

1

0

1

0

1

0

1

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137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

DATA KEY

TSS

PANEL

IIC T

MD SA

CH+AU

MONO

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

INVT

1

0

1

0

1

0

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

DATA KEY

TSS

PANEL

IIC T

MD SA

CH+AU

MONO

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

INVT

0

1

0

1

0

1

0

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Philips 20-LCD TV 20PF9925 Manual de usuario

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