HP L1798A, L1735A, L1736A, L1737A manual Preface

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Preface

This manual is prepared for the maintenance service for HP's 50”, 58”, and 65” Rear Projec- tion Multi-Purpose Display Unit. Maintenance procedures described in this manual are in- tended to isolate faulty parts and replace them in the field. It also aims to serve as a guide in procuring replacement parts for this product.

This manual is copyrighted and all rights are reserved. This product may not, in whole or in part, be copied, photocopied, translated or reduced to any electronic or machine readable form without prior written consent except for copies retained by the purchaser for backup purpose.

This manual includes basic specifications, major system assembly, components’ description, and the “Troubleshooting” making explanations on how to detect errors. It also includes a flow chart for checking or correcting faults.

No warranty or representation, either expressed or implied, is made with respect to this documentation, its quality, performance, merchantability or fitness for particular purpose.

No event that the vendor will be liable for direct, indirect, special, incidental or consequential damages arising out of the user or inability to use this product or documentation.

NOTICE :

The information found in this manual is subject to change without prior notice. Any subsequent changes made in the data herein will be incorporated in further edition.

HP MDTV

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Contents HP Mdtv Rear Projection TVs Fall Preface Chapter Why HP High Definition? Technology story HP Visual Fidelity and Wobulation Industrial design HP Mdtv HP Mdtv models Accessories Remote control and stand HP Mdtv specifications Specifications Panel Screen Image Input Signal Characteristics TV Input Cbvs Mntsc Smpte 274M VGA Audio System Disassembly Procedure Disassemble Lamp Module Loosen 3 screws and then remove the Lamp Module Disassemble Rear Cover and Power Supply Module Page Lvps Unscrew 2 screws to remove System Fan XHD4 Model Page Page Page Disassemble Engine Module Page Page Page Disassemble Speaker Module and Keypad Board Troubleshooting Power Troubleshooting Page Image Performance Troubleshooting Sound Troubleshooting Remote Control Troubleshooting Alignment & Function Test Procedure Page Page Control and choose source to video ADC Calibration Optical Alignment Firmware Upgrade Procedure Upgrade LED Indication USB Upgrade Procedure Edid Upgrade Procedure Page Page Page Page Page Page Page Appendix a Exploded Parts List Exploded Overview Handle Exploded Overview RP58 product label Exploded Overview ATSC/CNTC/QAM/DCR DTV Receivin Exploded Overview Wiring assembly main board to IR receiver Exploded Overview PE bag 1830x1600x0.08mm Exploded Overview Sanyodenki axial fan Exploded Overview Exploded Parts List Appendix B Appendix C Source Format Delivery Hdmi high-definition multimedia interface Glossary