Trident IS-TVHD30 Service Manual Download Page 27

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

AVDD_ADC3

Pr

MLF1

V

R

EF

P_3

PLF2

PR_R2

PAVDD1

PB_B2

Y_G2

PDVSS

PAVDD

CVBS2_

VDDL

CVBS1_

CVBS1_G

Y

CVBS_OUTN

C_

CVBS3_

Y_G1_G

AIN_N3

C_G

CVBS1_G

CVBS2_G

PB_B2_G

CVBS3_G

Pb

PAVSS

2

P

A

V

DD2

P

A

V

DD1

AIN_N1

PAVD

D

PD

VSS

Y_G2_G

AVSS_A

D

C

3

AVD

D

_AD

C

2

AIN_N2
AIN_N3

PD

VD

D

AVSS_A

D

C

2

CVBS1_

AVD

D

_AD

C

1

PB_B2_G

VREFP_2

VD DH

Pr

CVBS3_

PAVDD2

V

R

EF

P_1

MLF1

AVD

D

_AD

C

3

C_

AVSS3_BG_

A

S

S

VD

D

L

AVSS_ADC1

VR

EF

N

_

2

VREFN_1

Y_G2_G

AIN_N2

Pb

PAVSS

AIN_N1

VREFP_1

PDVDD

AVSS_ADC1

PR_R1_G

CVBS2_G

VREFP_3

VSSH

PLF2

CVBS2_

VR

EF

N

_

3

C_G

PR_R2_G

PB_B2

AVSS_A

D

C

1

VR

EF

N

_

1

V

R

EF

P_2

VREFN_2

A

V

D

D

3

_

AVSP2

CVBS_OUTP

AVDD_ADC1

PR_R2_G

PAVSS1

PAVSS

1

PB_B1_G

VSSL

PR_R2

CVBS_OUTN

AVDD_ADC2

AVDD3_AVSP2

CVBS_OUTP

CVBS3_G

VREFN_3

Y

Y_G2

AD

VD

D

3

3

AVSS33

_

3

V

DDC

A

V

DD3

3

V

DDH

V

SSH

AVSS33

_

1

V

SSC

AVDD33

AVSS33_3
AVSS33_2
AVSS33_1

ADVDD33

VD DC

VSSC

VSSL

PAVSS2

AVSS_ADC3

AVSS_ADC2

AVSS_ADC2

PAVSS

AVSS_ADC3

AVSS3_BG_ASS

VD DH

VSSH

VL1_8

VA1_8

VD1_8

VA1_8

AGN

D

VD1_8

AGND

AGN

D

AGN

D

AGN

D

AGND

VD1_8

VD3_3

AGND

VA1_8

AGND

AGND

VD3_3

VD1_8

VD3_3

VD3_3

Pb

C-YC

VIDEO2/Y-YC

Pr

VIDEO_OUT

VIDEO_OUT_G

VIDEO1

TV

Y

G-DSUB

R-DSUB

B-DSUB

H-DSUB
V-DSUB

TV_G

VIDEO1_G

VIDEO2/Y_G

AIN_N2
AIN_N3

AIN_N2

AIN_N3

G_
B_

R_

H-sync

V-sync

VM

CLAMP

Title

Size

Schematict Name

R e v

Date:

Sheet

of

FB420

G

SVP-EX 2 of 2

B

2

6

Tuesday, April 05, 2005

PRELIMINARY

Place this
resistor close to
EX chip

Place this
resistor close to
EX chip

Place this
resistor close to
EX chip

EX11/12 USE

EX32 USE

When use EX12,use 0ohm;
When use EX22,use 10Kohm.

Option 

Option 

R763

75

C743

10uF/16V

C732

10uF/16V

L708

150_Ohm_600mA

1

2

C761

0.1uF

R756

75

L709

150_Ohm_600mA

1

2

C779

0.1uF

R704

10K_DNS

R758

75

C733

10uF/16V

C729

10uF/16V

C7A9

0.1uF

C794

0.1uF

C765

0.1uF

C704

10uF/16V

L710

150_Ohm_600mA

1

2

R

708

1

0

SVP-EX [208]

(2 of 2)

N700B

SVP-EX_208

XTALO

1

XTALI

208

PAVSS

207

PAVD

D

206

PD

VSS

205

PD

VD

D

204

VR

EF

P_1

195

VR

EF

N

_1

194

AVSS_AD

C

1

193

A

V

DD_

A

DC1

192

AIN_N3

203

Y_G2

202

AIN_N2

201

Y_G1

200

AIN_N1

199

CVBS3

198

CVBS2

197

CVBS1

196

CVBS_OUTP

190

CVBS_OUTN

191

AVSS3_BG_ASS

189

AVD

D

3_AVSP2

188

VR

EF

P_2

184

VR

EF

N

_2

183

AVSS_AD

C

2

182

A

V

DD_

A

DC2

181

PB_B1

186

PB_B2

187

C

185

VR

EF

P_3

178

VR

EF

N

_3

177

AVSS_AD

C

3

176

A

V

DD_

A

DC3

175

PR_R2

180

PR_R1

179

VSSC

169

VDDC

168

VSSH

167

V

DDH

166

VSSC

154

VDDC

141

VSSC

138

VDDC

125

VSSC

122

VDDC

119

V

DDL

104

VSSL

103

VDDC

89

VSSC

86

VDDC

83

VSSC

70

VDDC

67

VSSC

54

V

DDH

19

VSSH

20

P_21

21

P_22

22

P_23

23

P_24

24

P_25

25

P_26

26

P_27

27

P_28

28

P_29

29

P_30

30

P_31

31

P_32

32

P_33

33

P_34

34

P_35

35

P_36

36

P_37

37

P_38

38

P_39

39

P_40

40

P_41

41

P_44

44

P_45

45

P_46

46

P_47

47

P_48

48

P_49

49

P_50

50

P_51

51

P_52

52

PAVD

D

1

2

PAVSS1

4

PAVD

D

2

5

PAVSS2

7

VDDC

9

VSSC

8

MLF1

3

PLF2

6

AIN_HS

10

AIN_VS

11

P_42

42

P_43

43

R793

1K

C793 2700pF

C750 0.1uF

C781

0.1uF

C720

10uF/16V

C753 0.1uF

C718

0.1uF

C768

0.1uF

C785 2700pF

C742

10uF/16V

C7B0

0.1uF

G700

14.318MHz

C7A8

0.1uF

C710

0.1uF

R789

75

L704

150_Ohm_600mA

1

2

C7A2

30pF

R773
0/10K

C789

0.1uF_DNS

C776

0.1uF

C712

0.1uF

C748 0.1uF

C745 0.1uF

C799 0.1uF

R791

1K

C749 0.1uF

L707

150_Ohm_600mA

1

2

C719

0.1uF

C778

0.1uF

C7A7

0.1uF

C795

20pF

C734

10uF/16V

L705

150_Ohm_600mA

1

2

C727

10uF/16V

C741

10uF/16V

C792

0.1uF

C788

0.1uF_DNS

R759

75

L711

150_Ohm_600mA

1

2

R702

10K_DNS

C796

20pF

C777

0.1uF

L706

150_Ohm_600mA

1

2

C784

0.1uF

C786

0.1uF

C7A1

0.1uF

R790

1K

L712

150_Ohm_600mA

1

2

C766

0.1uF

C782

0.1uF

C751 0.1uF

C787

0.1uF_DNS

C763

0.1uF

C740

10uF/16V

C760

0.1uF

R775

560

R760

75

C791

0.1uF

L713

150_Ohm_600mA

1

2

R761

75

C746 0.1uF

C780

0.1uF

C7A3

0.1uF

C762

0.1uF

R755

75

C774

0.1uF

R706

10K

Summary of Contents for IS-TVHD30

Page 1: ...COLOR TELEVISION IS TVHD30 ...

Page 2: ...CONTENTS Safety precautions Alignment instructions Working principle analysis of the unit Block diagram IC block diagram Wiring diagram Troubleshooting Schematic diagram 1 3 10 11 12 18 19 21 ...

Page 3: ... all exposed metallic parts of the cabinet the channel selector knob antenna terminals handle and screws to be sure the set is safe to operate without danger of electrical shock Do not use a line isolation transformer during this test Use an A C voltmeter having 5000 ohms per volt or more sensitivity in the following manner connect a 1500ohm 10watt resistor paralleled by a 0 15uF 150V A C type cap...

Page 4: ...ltage avoid being unnecessarily close to the picture tube and the high voltage compartment Do not operate the chassis longer than is necessary to locate the cause of excessive voltage 6 Refer to HV B and Shutdown adjustment procedures described in the appropriate schematic and diagrams Too excessive voltage will cause harmful X ray IMPLOSION 1 All direct viewed picture tubes are equipped with an i...

Page 5: ...the set is longer than 30 minutes at least 1 4 The magnetized CRT will influence the colour purity and focus When the inside degaussing circuit can t degauss thoroughly then an outside degausser is necessary Colour purity and focus adjustment should be executed according to the colour purity and focus adjusts procedures if the colour purity and focus is not good 2 Alignment items and procedure a B...

Page 6: ...xit the factory menu Press the MENU button again and again it can exit the factory menu E2 PROM copy B voltage OSD position AFT adjustment AGC adjustment Screen grid voltage and white balance adjustment Centre of scanning amplitude and raster adjustment Check Video S VHS DVD Colour purity and convergence White balance Sub brightness Picture parts SELF CHECK Filament voltage X ray protection check ...

Page 7: ...G menu fixed the CUT OFF R and adjust the CUT OFF G and the CUT OFF B until the white balance is normal c Select the color and contrast to 0 select the brightness to 50 in the user menu In the factory menu select the LUMINANCE SETTING menu adjust the Brightness min until the back level voltage about 180V Adjust the SCREEN potentiometer until rightmost of gray of the US 7 picture up and down separa...

Page 8: ... and Horizontal and vertical scanning centre and amplitude adjustment of HDTV The unit has the YPBPR terminal it can display the HDTV signal Support the HDTV and TIMING of the VG848 format Support input signal of YPbPr Signal format TIMING of the VG848 format 480I 950 480P 978 576I 969 576P 979 1080I 60Hz 972 720P 60Hz 976 1080P 60Hz 970 When the white balance adjustment the picture mode to STANDA...

Page 9: ... Correction PARAL Parallelogram Correction TCC Top Corner Correction BCC Bottom Corner Correction 4 12 2 YPbPr input 1080I 60Hz format signal Adjustment mode to 4 12 1 5 Check point 5 1 check the high voltage a Check the second anode and GND connect to the high voltmeter b Receive US 7 signal the picture mode to STANDARD measure the high voltage to 30 0KV 1KV c The brightness and contrast to min v...

Page 10: ...8 APPX horizontal and vertical scanning adjustment diagram ...

Page 11: ...9 ...

Page 12: ...main board X701 The Z101 output sends to the pin8 of N101 LA7566 and Z102 output sends to the pin5 and pin6 of N101 The N101 supports PAL and NTSC system it be controlled high low level of MCU N707 M16C 30620SPGP output The level define as follow System X701 pin55 X701 pin53 X701 pin51 X701 pin49 DK 6 5M 0 1 1 0 I 6M 1 0 0 1 BG 5 5M 1 1 0 1 M 4 5M 0 0 0 0 Note 1 high level 0 low level The pin13 of...

Page 13: ...t L R AV2 N707 CPU M16c 30620SPGP N801 PRE VIDEO AMP STV9211 N700 ND decodor scaler Trident EX 11 ROM 24C16 EMST 16161 CRT BOARD LM2423 EMST 16161 I2 C I2 C I2 C I2 C I2 C CRT R G B AV2 video YPbPr1 YPbPr2 CVBS Clamp Blanking R G B R G B AV1 video Y C L R NS01 STEREO DECODER LA72700 L R N302 DDY STV9118 H AMP 2SC5422 V AMP LA78041 I2 C AVOUT V Block diagram ...

Page 14: ...12 IC block diagram 1 LA7566 10 AFT output 19 SIF output 9 AGC output 1 TV audio output 5 6 picture IF input 13 TV video output 8 sound IF input 3 9V ...

Page 15: ...2 input 197 AV2 V input 14 SCL 198 TV V input 16 SDA 200 Y1 PbPr input 190 191 AVOUT V output 186 Pb1 input 28 B output 179 Pr1 input 29 G output 202 Y2 PbPr input 30 R output 34 H SYNC output 31 VM output 37 V SYNC output 9 168 and so on 1 8V 36 CLAMP output 15 5V 1 ...

Page 16: ...4 AV2aduion R input 35 AVOUT audio L output 6 37 TV audio input 8 AVOUT audio R output 38 YPbPr1audio L input 11 audio L output 5 YPbPr1audio R input 19 audio R output 40 YPbPr2audio L input 22 CLOCK 3 YPbPr2audio R input 21 DATA 36 AV1 Saudio L input 20 9V ...

Page 17: ...incushion correction output 1 V SYNC input 25 X ray protection input 18 Vertical high voltage compensation input 31 SDA 17 Horizontal high voltage compensation input 30 SCL 26 horizontal signal output 29 12V 23 vertical signal output ...

Page 18: ...16 5 STV9211 1 R input 1 ABL 3 G input 5 B input 13 SDA 16 G output 19 CLAMP 14 B output 20 BLANK 7 17 5V 18 R output 12 SCL ...

Page 19: ...17 6 LA72700V 5 SIF input 25 R output 11 SDA 26 L output 12 SCL 31 9V ...

Page 20: ...18 Wiring diagram ...

Page 21: ...on Check if it has vertical protection circuit Check the FU501 Check the supply power Measure if the C516 is about 150V Check the D501 and peripheral circuit Check the N501 N502 and peripheral circuit Light No light No signal Turn on Check if the N602 output Check if the pin2 and pin4 of sound amplifier output Check the supply power the pin5 of mute is low level Check if sound processing N601 is n...

Page 22: ...Check if the digital processing board has RGB and H V sync output Check the N700 and peripheral circuit Check if the digital processing board has RGB output Check the digital Check the N801 and peripheral circuit Without raster Raster Check if the H V circuit is normal Check the FBT Check the filament voltage of CRT board Normal Abnormal No No ...

Page 23: ...21 Schematic diagram ...

Page 24: ......

Page 25: ......

Page 26: ... MD15 84 MD16 124 MD17 126 MD18 128 MD19 130 MD20 134 MD21 136 MD22 137 MD23 139 MD24 140 MD25 142 MD26 144 MD27 146 MD28 150 MD29 152 MD30 153 MD31 155 DQM0 59 DQM1 75 DQM2 133 DQM3 149 DQS0 60 DQS1 76 DQS2 132 DQS3 148 MA11 85 MA10 87 MA9 88 MA8 90 MA7 91 MA6 93 MA5 94 MA4 96 MA3 98 MA2 99 MA1 101 MA0 102 MCK0 106 MCK0 107 CS0 109 CS1 111 RAS 113 CAS 114 MVREF 116 WE 118 CLKE 120 BA0 121 BA1 123...

Page 27: ... 16V C7A9 0 1uF C794 0 1uF C765 0 1uF C704 10uF 16V L710 150_Ohm_600mA 1 2 R708 10 SVP EX 208 2 of 2 N700B SVP EX_208 XTALO 1 XTALI 208 PAVSS 207 PAVDD 206 PDVSS 205 PDVDD 204 VREFP_1 195 VREFN_1 194 AVSS_ADC1 193 AVDD_ADC1 192 AIN_N3 203 Y_G2 202 AIN_N2 201 Y_G1 200 AIN_N1 199 CVBS3 198 CVBS2 197 CVBS1 196 CVBS_OUTP 190 CVBS_OUTN 191 AVSS3_BG_ASS 189 AVDD3_AVSP2 188 VREFP_2 184 VREFN_2 183 AVSS_A...

Page 28: ...M 14 WE 15 CAS 16 RAS 17 CS 18 BA 19 MA10 20 MA0 21 MA1 22 MA3 24 VDD 25 VSS 26 MA4 27 MA5 28 MA6 29 MA7 30 MA8 31 MA9 32 N C 33 CKE 34 CLK 35 UDQM 36 N C RFU 37 VDDQ 38 DQ8 39 DQ9 40 VSSQ 41 DQ10 42 DQ11 43 VDDQ 44 DQ12 45 DQ13 46 VSSQ 47 DQ14 48 DQ15 49 MA2 23 VSS 50 C709 1000pF R709 33 C702 0 1uF C722 1000pF C708 1000pF C726 0 1uF C700 0 1uF N702 KM416S1020B VDD 1 DQ0 2 DQ1 3 VSSQ 4 DQ2 5 DQ3 6...

Page 29: ...V POWER FOR SVP EX 3 3V POWER FOR SVP EX L722 L718 N704 SS6117A 1 8 OUT 2 IN 3 GND 1 L714 D702 1N4148 C739 22uF 16V C7A0 0 1uF N703 SS6117A 1 8 OUT 2 IN 3 GND 1 C769 0 1uF L717 L720 L715 C736 22uF 16V C7B9 0 1uF C737 0 1uF C7C0 0 1uF C705 0 1uF C713 22uF 16V C735 22uF 16V C759 22uF 16V C706 22uF 16V L716 C758 22uF 16V L719 L721 C7B5 0 1uF C757 100uF 16V N705 SS6085 1 8 OUT 2 IN 3 GND 1 GND 4 C7B1 ...

Page 30: ...AP3 TV_G H DSUB TV Hsync SELECT Title Size Schematict Name Rev Date Sheet of FB420 G INTERFACE CONNECTOR B 5 6 Wednesday April 06 2005 PNP C744 0 1uF R7Y1 0_DNS R7Y3 0_DNS X700 HEADER_24X2 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 31 32 25 30 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 R7A2 4 7K C7B2 10pF R7Y4 100 C7Y5 0 1uF C752 0 1uF R7A5 10K R799 0 C7B3 10pF...

Page 31: ...7 10K R742 100_DNS R730 0_DNS R722 100 R795 4 7K R724 100 R778 47 TP9 AD6 C717 0 01uF D700 HZ4A2 R752 4 7K R797 10K TP5 AD2 V702 MMBT3906 B C E N708 A290021 A0 12 A1 11 A2 10 A3 9 A4 8 A5 7 A8 27 A11 25 A12 4 A7 5 A14 29 A15 3 A6 6 A9 26 A13 28 A10 23 A16 2 A17 30 WE 31 GND 16 RESET 1 VCC 32 OE 24 CE 22 I Q7 21 I Q5 19 I Q0 13 I Q1 14 I Q2 15 I Q3 17 I Q4 18 I Q6 20 R785 10K N707 M30620SPGP P7_5 T...

Page 32: ...603 TJ3060 01 Ver 1 0 603 TJ27780 01 603 TJ27680 01 ...

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