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General| Screen Size | 52 inches |
|---|---|
| Display Type | DLP |
| Resolution | 1280 x 720 |
| Aspect Ratio | 16:9 |
| HDMI Ports | 2 |
| Weight | 73.2 lbs |
| Display Technology | DLP |
| Inputs | HDMI, Component, Composite, S-Video |
Details power, input/output levels, dimensions, weight, and speaker specs.
Critical warnings for service personnel regarding shock hazards and eye injury.
Procedures for performing cold and hot leakage current checks on the unit.
Steps for removing the back cover and main chassis from the unit.
Instructions for removing rear plate, interface, power, and signal boards.
Identifies main components of the LCD Engine assembly.
Procedures for removing the engine and its plate from the cabinet.
Steps for disassembling the front panel and removing the screen frame.
Procedures for removing and replacing lenticular and Fresnel lenses.
Instructions for entering the service option menu using the remote.
Guide on how to check and interpret digital signal strength.
How to start the front panel initialization sequence.
Various reset types like A/V Memory, System, Factory Restore.
Default AV settings and procedures for A/V memory reset.
Explains normal LED indications for power, status, and lamp.
Lists abnormal LED patterns and their probable causes.
Procedure to check for error codes using front panel buttons.
A table of error codes and their corresponding malfunction descriptions.
Diagram illustrating the lamp control circuitry.
Step-by-step guide for diagnosing lamp-related issues.
How to enter the circuit adjustment mode using the remote.
Procedures for activating and using test patterns for adjustments.
How to adjust data, save settings, and terminate the adjustment mode.
Initial steps including cover removal and loosening screws.
How to adjust trapezoid distortion using specific screws.
Steps for clockwise and counter-clockwise rotation adjustments.
Procedure to center the picture horizontally and vertically.
Cautions and best practices for using lead-free solder.
Detailed steps for removing and soldering chip components.
How to specify information when ordering replacement parts.
Part numbers for major Printed Circuit Board assemblies.
A comprehensive list of integrated circuits with part numbers.
Comprehensive list of diodes with part numbers.
Comprehensive list of coils with part numbers.
List of conventional resistors with part numbers and descriptions.
List of chip capacitors by value and part number.
Lists various switches and other miscellaneous components.
Part numbers for various PWB assemblies.
List of parts for the screen assembly on WD-52531 model.
Schematic diagram of the main power supply circuit.
Block diagram showing power supplies for the LCD Engine and fans.
Block diagram showing the path of analog video signals.
Block diagram showing the path of digital video signals.
Block diagram illustrating the sound signal path.
Block diagram showing overall control signal paths.
Diagram showing how commands are input and processed.
Schematic diagram of the lamp control system.
Diagrams for LCD engine protection mechanisms.
Diagrams illustrating short circuit protection circuits.
Schematic showing the auto input detection logic.
