HP LC3260N manual On Screen Display does Not Appear

Page 24

TROUBLESHOOTING GUIDE

ON SCREEN DISPLAY DOES

NOT APPEAR.

	IS	THERE SIGNAL	AT	NO
	PINS	2, 3, 4 AND	5 OF
	IC101	?
		YES
		YES
	IS THE COLOR SIGNAL			NO
	AT PINS 57, 58, 59 AND			NO
	AT PINS 57, 58, 59 AND
	60 OF IC801 ?
		YES

CHANGE SCALER PCB.

CHECK IC101 AND PERIPHERAL CIRCUIT.

CHECK IC801AND

PERIPHERAL CIRCUIT.

E-7

Image 24

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 AT+5V Mute Level ShiftSWYUV1/2 PSU5VD/DSR/LIGHTCTL PCBD20AV Jack Schematic Diagram Stereo Schematic Diagram Sound AMP/HEADPHONE AMP Schematic Diagram Power Schematic Diagram AV JACK2 Schematic Diagram Extmute SwspdifCoaxial Jack CON+5V Tuner Schematic Diagram Scalerreset Stereoreset HDMI/DVI COMPONENT/HDMI KEY-A KEY-BDVS 3DY/CRESET 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 To Asic Dtvreset From POWER2 NFIO7 NFIO6 NFIO5 NFIO4 NFIO3 NFIO2 NFIO1 NFIO0Nfcle FclkFront END Schematic Diagram FROM/TO Firm Update DTV Reset DTV PowerAFT DTV Reset DTV ON-H Spdif Outa Tunersda AF3 TwiretxdcPOWER2 Schematic Diagram Powerswctl IC508 5VREGULATORPOWERFAIL LCD-HFROM/TO AC Inlet Chassis GNDOPERATION/REMOCON Schematic Diagram GND Power PCB Power ON-HDtunerresetl SwitchvideocWaveforms ADC1 AV OUT Mechanical Exploded View PCBDH0 Mechanical Replacement Parts List Electrical Replacement Parts List SPEC.NO