HP LC3260N manual AV SWITCH1 Schematic Diagram

Page 50

8

A

B

C

D

E

F

G

H

AV SWITCH1 SCHEMATIC DIAGRAM

(SCALER PCB)

8

7

6

5

4

3

2

1

SW2_G/Y

W840

SW_G/SW_Y

R8105

150

R8143

1K

R8146

1K

R8142

R8148

5.0

BUFFER

SW2_B/CB

R8122

Q8106

SW_B/SW_CB

100

0.7

2SA1530A

NLCV32T

150

0

150

L8105

R8145

5.0

BUFFER

C8149

6.3V 220 V-S

22uH

B 0.1

C8150

100P CH

C8151

Q8105

100

0.7

2SA1530A

0

SW2_R/CR

R8149

150

SW_R/SW_CR

R8124

150

FROM/TO MICON

C_SYNC

SD_SW1

FROM/TO SCALER

SW_VIDEO_Y

SW_R/SW_CR

SW_G/SW_Y

SW_B/SW_CB

SW2_R/CR

SW2_G/Y

SW2_B/CB

SW_CVBS

R8131

1K

SYSNC_SEPA

-S

Q8103

1.0

SCART2 OUT CVBS SW

B

2SC3052

IC8103 MM1501XNRE

C8129

C8131

16V100 V

R8129

R8130

FROM/TO ADC1

0.1

C8112

3.3K

4.7K

0.7

SW_Y/G

4

VCC

3

8.9

SYSNC_SEPA

0

C8109

1 B

5.1

H

Q8101 5.1

SYSNC_SEPA

SW_PB/B

C8128

R8116

1 B

5

2

4.4

2SA1530A

Q8102

SW_PR/R

0

BUFFER

1

B

1K

5.5

2SC3052

C8113

1.5

R8125

C8146

0.3

3.1

L

0

R8113

GND

C8110

1 B

5.1

6

1

100K

NLCV32T

330P CH

12K

B 1

0

FROM/TO REGURATER

1 B

Y

47uH

L8102

C8137

R8119

820K

R8123

2.7K

C8144

0.1B

R8128

12K

C8147

820PCH

P.CON+9V

SW VIDEO

SW CVBS

SD SW1

P.CON+9V

P.CON+5V

SW_Y/G

SW_PB/B

SW_PR/R

P.CON+5V

P.CON+5V

C_SYNC

PCBDS0

CEF156

7

6

5

4

3

2

1

					NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME		NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
					OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE		WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
							WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

	A	B	C	D		E	F		G	H

H-27

H-28

Image 50

Contents Model HOW to Order Parts Servicing Notices on CheckingAbout Lead Free Solder PbF Contents General Specifications SystemA3-2 A3-3 A3-4 A3-5 Disassembly Instructions Removal and Installation of Flat Package ICInstallation Service Mode List Set Set Key Remocon Standard Operations Condition TimeWhen Replacing Eeprom Memory IC Confirmation of Initial DataRE-WRITE for Digital Soft Firmware Electrical Adjustments Adjustment ProcedureConfirmation of Fixed Value Step No Electrical Adjustment Parts Location Guide Wiring Connection Troubleshooting Guide Pins 1, 2, 3, 4 Picture does not Appear Is There Signal Picture APPEARS, but the Audio does not Appear CD3806 5V ? YES Is There Signal On Screen Display does Not Appear Digital RGB Interface Ddvs Converter AV SWITCH2/STEREO/SOUND AMP Block Diagram TUNER/DIGITAL/POWER Block Diagram Interface Block Diagram MICON2 Block Diagram Printed Circuit Boards AV TOP Side CMF080APrinted Circuit Boards AV Bottom Side Printed Circuit Boards Scaler TOP Side Printed Circuit Boards Scaler Bottom Side Printed Circuit Boards Digital TOP Side Digital Bottom SideSolder Side Printed Circuit Boards POWER/OPERATION Chip Mounted Parts CEF185AAV SWITCH2 Schematic Diagram SWYUV1/2 PSU5VD/DSR/LIGHTCTL AT+5V MuteLevel Shift PCBD20AV Jack Schematic Diagram Stereo Schematic Diagram Sound AMP/HEADPHONE AMP Schematic Diagram Power Schematic Diagram Coaxial Jack CON+5V AV JACK2 Schematic DiagramExtmute Swspdif Tuner Schematic Diagram DVS 3DY/CRESET ScalerresetStereoreset HDMI/DVI COMPONENT/HDMI KEY-A KEY-B AFT1LOW 3DY/CRESET AFT2HIGH LcdonScaler Schematic Diagram ADC1 Schematic Diagram Lvds Schematic Diagram Jack Schematic Diagram AV SWITCH1 Schematic Diagram Regulator Schematic Diagram Interfacehdmi IC Schematic Diagram Hdmi MICON2 Schematic Diagram Asic Schematic Diagram Sdram Schematic Diagram Nfcle To Asic Dtvreset From POWER2NFIO7 NFIO6 NFIO5 NFIO4 NFIO3 NFIO2 NFIO1 NFIO0 FclkFront END Schematic Diagram AFT DTV Reset DTV ON-H Spdif Outa FROM/TO Firm UpdateDTV Reset DTV Power Tunersda AF3 TwiretxdcPOWER2 Schematic Diagram FROM/TO AC Inlet PowerswctlIC508 5VREGULATORPOWERFAIL LCD-H Chassis GNDOPERATION/REMOCON Schematic Diagram Dtunerresetl GND Power PCBPower ON-H SwitchvideocWaveforms ADC1 AV OUT Mechanical Exploded View PCBDH0 Mechanical Replacement Parts List Electrical Replacement Parts List SPEC.NO