Sanyo PLC-XU45 service manual Video Signal processing diagrams

Page 38

DIGITAL/ANALOG

K10V

K3V

10

D_BE0-7 D_GE0-7

D_RE0-7

PX+-, CLK, DATA

80 IC8001 77

TP25B1

DVI

9

D_B00-7

D_G00-7

D_R00-7

ANALOG RGB

DVI

TP25B2

40

90

2

16

GHS

I/F

48

IC501

46

6

18

GVS

3

ANALOG SYNC

4

DVI BOARD

6

IC8081

IC1501

K10W

K3W

IC5211

IC5241

BUFFER

B

S&H_B

MONITOR

CG1/CG2 RGB-SW

AV/PC-RGB-SW

3

1

R

8

TP52R

IC5271

R

TP201R

133

34

RGB

G

3

20

B

10

20

7

IC401

DBB0-9

TP25G1

12

5

12

TP52G

IC5281

G

TP201G

TP25G2

H-SYNC

15

18

R

1

18

15

GB00-7

IC1401

DIGITAL

16

G

TP52B

IC5291

B

TP201B

IC201

GBE0-7

DB0-9

DIGITAL

DGB0-9

COLOR

DGB0-9

IC531

V-SYNC

19

16

3

16

22

GG00-7

IC301

DG0-9

DGA0-9

20

B

5

A/D

GGE0-7

DR0-9

BRIGHTER

DRA0-9

UNIFORMITY

IC1531

GR00-7

22

22

IC6171

IC251

TP205

GRE0-7

SCAN

CONTROL

CORRECTION

G

S&H_G

K10T

K3T

CONVERTER

TIMING

IC3531

CG1/CG2

PC: H

AFC 16

HAFC

HSYNC

40

SYSTEM

5,4 9,1

CONTROL

AV: L

DET

G_LEVEL

IC5251

CONTROL

DRB0-9

IC6201

IC6241

AV/PC

21 22

1

2

TPDHS

6,7 13

SHIFT

AV/PC

IC6271

IC6251

22

SYNC SW SYNC DET.

SYNC-SW

BUFFER

323

TPDVS

TP25R1

6

HSYNC

INVERTER

TP62H

244

TP25R2

2

H

H

DHS/DVS

3

11

9

H

1

2

3

HS

34

3

13

1

12

15

IC561

VSYNC 5

V

2

TP62V

TPCLK

8

5

V

V

R

16

11

5

8

13

14

5

6

VS

133

TURBO_1

IC1561

240

12

DCLK

S&H_R

CG1/CG2

10 11

IC3561

IC1581

RGT

R_LEVEL

AV BOARD

MAIN BOARD

SHIFT

AV/PC

D/A

DWN

PC: H

14

22

2

H

AV: L

3

19

-38-

V

3

IC2571

NRS

7

VIDEO_RGB

IC3581

2

D/A

5

VCOM

NRS

3

7

12

IC6101

HDHSYNC

13

K10U

K3U

TP11SY

13 14

9

VSYNCHD

55 56

IC3101

13

TP11SC

AV_HSYNC INVERTER

AV_VSYNC

8

Y/C

Y/C

43

4

BLANKING

11

4

S-VIDEO

39

44

1

12

66

41

TP11PR

R

Cr

IC1101

5

10

65

IC4101

1

17

HS_OUT

29

39

IC3121

R

S_SW

15

TP11PB

Cb

VIDEO

Y

28

RGB

G

VS_OUT

3

G

18 DECODER 21

69

MATRIX

37

IC2131

TP11CV

Cb

B

4

13

B

68

35

IC3141

19

22

2

14

CV/Y

Cr

23

67

5

9,10

5

7

73

74

75

12

Pr/Cr

Pr

51

52

Pb/Cb

49

Pb

IC2161

50

Y

C

Y

D/A

BLANK_SW

Cr SW

Cb SW

PC: H

4,5,6

15

AV: L

9

IC801

7

AV/PC

7

SCL2_5

CV

IC2101

13

SDA2_5

79,78

SUB

45

SYNC_SW

8

VIDEO/Y

2 DIGITAL

8

CPU

46

COMB

BLKC_DC

9,18,19

IC5161

FILTER

35

C_SWIN

Component-In: H

C_SWIN

11

2

36

S-In: H

3

33

S_SW

12

IC2181

34

I/O

K25B

K25G

TP3551

IC3551

NRS

K25R

TP3581

B-LCD PANEL

G-LCD PANEL

R-LCD PANEL

Video Signal processing diagrams

Troubleshooting

Image 38

Contents PLC-XU46 PLC-XU46 PLC-XU45Contents Safety Instructions Do not Attempt to Servicing Remote Control UnitSpecifications Adjustments after Parts Replacement Optical Adjustments Electrical AdjustmentsCircuit Protections Type T4.0AH 250V Fuse Little Fuse INC. TypePossible causes RecommendationMain Board removal Mechanical DisassembliesCabinet Top and Control Panel removal Temp board AV, DVI, Temp Board and Speaker removalFront Panel and R/C Board removal DVI boardIsolation sheet Lamp ballast board SW902 Lamp Ballast Unit removalFilter Board removal Filter boardPower Box Cover and FansFN901, FN906 removal Optical Unit removalPower and P.F. Board removal ⁄0Fan FN905 removal ⁄1Fans FN902, FN903, FN904 removalProjection Lens removal Integrator Lens-In disassemblyOptical Parts Disassemblies Condenser lens disassembly Condenser Lens-Out disassemblyHolder Relay Lens-Out disassemblyPolarized Glass-In removal LCD Panel Polarized Glass-Out/Pre-Polarized Glass removalOptical Unit Top removal Prism Ass’yLocations and Directions Key No. DescriptionColor Shading Correction LCD Panel/Prism Ass’y ReplacementLCD Panel/Prism Ass’y removal How to check Lamp Replace Counter Lamp ReplacementHow to reset Lamp Replace Counter B-CONTRAST Adjustment Optical AdjustmentsContrast adjustment Condenser Lens adjustment Green b Slot B Moving of slot B Slot D Moving of Slot DCondenser Lens-Out adjustment Cyan a Slot B Moving of slot B Moving of slot DSlot D Moving of slot D Relay lens-Out adjustmentWhite a Slot B a Moving of slot B Electrical Adjustments IC1801 is not defectiveFan Voltage adjustment For PLC-XU45 Output Voltage adjustment For PLC-XU45Output Voltage adjustment For PLC-XU46 Fan Voltage adjustment For PLC-XU46V12 Signal Center adjustment X12 Pedestal adjustmentC12 NRS adjustment Black Level adjustmentAV Gain adjustment PC Offset adjustmentM12 PC Gain adjustment Common Center adjustmentAdjustment ⁄01 Gamma Shift adjustment⁄11 White Balance adjustment TB1274 CXA2101TA1318 LP05 TurboGroup 500 ADC Group 10 OptionFan Control Group 510 Ntsc GakakuGroup 515 Hdtv 720p Gakaku Group 513 Hdtv 1080i-50 GakakuGroup 514 Hdtv 1035i Gakaku Group 516 Hdtv 575p GakakuTest Points and Locations Main BoardTroubleshooting Abnormality occurs on the power circuitIC801 F601Fuse Thermal sw. Interlock sw No picture from both of Video and Computer sources No picture from Video sourceNo picture from DVI source No picture from all of sourcesVideo Signal processing diagrams No audio output signal at speaker No audio signals at AV input circuitIncorrect operation of VIDEO/COMPUTER mode switching No power supply at audio circuitControl Port Functions System Control & I/O Port Table IC801Control Port Functions IIC Bus DA Converter IC1831 Port Functions IIC Bus I/O Expander IC1851 Port FunctionsIIC Bus I/O Expander IC2181 Port Functions IIC Bus DA Converter IC2571 Port Functions IIC Bus DA Converter IC2161 Port FunctionsIIC Bus DA Converter IC1581 Port Functions Drive TP52R/TP201R Drive TP52G/TP201G Drive TP52B/TP201G WaveformVIDEO-IN Sync Drive TP62H Sync Drive TP62V DHS Tpdhs DVS Tpdvs Sync OUT IC4101-29 Sync OUT IC4101-28Sync in TP205 Ballast SW TP28LCleaning Cleaning with air sprayIC Block Diagrams BA7078AF Selector, IC6241 CXA2101AQ RGB Matrix, IC4101 IC Block Diagrams L3E07050 Color, Gamma Correction & Timing Controller , IC401 ML60851 USB I/F, IC9801 M62393 D/A, IC2571 TB1274AF Video Decoder, IC1101 TA1318N AFC Detector, IC6171 IC Block Diagrams Page Electrical Parts List Read Description in the parts listOUT of Circuit Board 610 292 5609 ASSY,PWB,KEY SW MS6A Assemblied Boards ME3-XU4500, PLC-XU45KEY SW Board Assemblied Boards MF3-XU4600, PLC-XU46Transistor AV Board610 299 7330 ASSY,PWB,AV MK8A Integrated CircuitNP-ELECT Coil DVI Board610 299 7347 ASSY,PWB,DVI MK8A 610 305 8641 ASSY,PWB,POWER MF3A Power Board610 301 0939 ASSY,PWB,POWER MK8A For ME3-XU4500, PLC-XU45MT-POLYEST 0.047U K MF3-XU4600, PLC-XU46 Transformer610 305 8658 ASSY,PWB,P.F. MF3A Board610 301 0946 ASSY,PWB,P.F. MK8A 610 301 0953 ASSY,PWB,LINE Filter MK8A Main BoardLine Filter Board 405 014 4608 2SC2412K T146 173 9803 2SC3928A1R 015 8704 IC MM1031XM SN74AHCT1G14DBVR C1539 403 164 0204 403 373 C5217 403 164 0204 Network RB413 645 037 0663 Network 22X4 0.063W R1132 R152 401 8104 R2546 401 105 7909 R336 401 7909 R433 401 105 3901 Fusible Diode Integrated Circuit Temp Board610 304 8932 ASSY,PWB,TEMP ME3A AC Cord AccessoriesRemote Control Mechanical Parts List Optical Parts 67 Red Green Blue Polarized glass Optical filterWV52-a Model PLC-XU46 Model PLC-XU45Mechanical Parts List Chassis Parts Cabinet Parts ScrewsOptical Parts Page PLC-XU45 Diagrams & Drawings Schematic DiagramsPrinted Wiring Board Drawings PLC-XU46Parts description and reading in schematic diagram Resistor ReadingCircuit Block Diagram 5VS 5VDVI 5VS3VS 5VD 9V MCIDVI Sideb Printed Wiring Board DiagramsAV Sidea DVI Sidea Temp Sidea Main SideaSidea Temp Sideb Main SidebSideb IC5211K6R Power Sidea Power SidebK6S IC671KEY SW Sideb KEY SW SideaLine Filter Sidea K6BA10 IC681 Schematic Diagrams PLC-XU45,46 A11 LeftLine Filter Baord FA7701VSchematic Diagrams PLC-XU45,46 A11 Right Ower SupplyAudio Schematic Diagrams PLC-XU45,46 A12 LeftIC6171 Schematic Diagrams PLC-XU45,46 A12 Right TA1318AFSchematic Diagrams PLC-XU45,46 A13 Left DigitalSchematic Diagrams PLC-XU45,46 A13 Right MatriAD8185ARU Schematic Diagrams PLC-XU45,46 A14 LeftCG1/CG2-SW AD8183ARUSchematic Diagrams PLC-XU45,46 A14 Right 3VS C201 TE201EIC8001 Schematic Diagrams PLC-XU45,46 A15 LeftIC301 IC1341 Schematic Diagrams PLC-XU45,46 A15 RightDigital Color Unformity Correction Timing Control Lamp Schematic Diagrams PLC-XU45,46 A16 Left50-52 CPU Schematic Diagrams PLC-XU45,46 A16 RightSUB MemoryUniformity & Gamma Schematic Diagrams PLC-XU45,46 A17 LeftColor CorrectionShift Schematic Diagrams PLC-XU45,46 A17 RightLevel Schematic Diagrams PLC-XU45,46 A18 Left Schematic Diagrams PLC-XU45,46 A18 Right Pin description of diode, transistor and IC IC IC