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General| Display Technology | CRT |
|---|---|
| Screen Size | 21 inches |
| Aspect Ratio | 4:3 |
| TV System | PAL/SECAM |
| Audio | Mono |
| Tuner | Analog |
| Weight | 18 kg |
| Connectors | SCART |
Details on display, tuning, color systems, video playback, and aerial input.
Information on side and rear connections for audio/video and peripherals.
Overview of main circuit boards and their locations within the chassis.
Step-by-step instructions for disassembling the television set.
Procedure for placing the mono carrier in a service-friendly position.
Instructions for removing the front interface assembly or panel.
Instructions for removing the side AV assembly or panel.
Instructions for removing the LTI/CTI interface panel.
Instructions for removing the top control assembly or panel.
Instructions for removing the linearity assembly or panel.
Instructions for removing the PIP assembly or panel.
Instructions for reassembling the television set after service.
Overview of test points on circuit board assemblies for functional block reference.
Explanation of Service Default Mode (SDM) and Service Alignment Mode (SAM).
Procedures and specifications for entering and using Service Default Mode.
Procedures and specifications for entering and using Service Alignment Mode.
Procedure for entering Customer Service Mode to retrieve error codes.
Troubleshooting tips for common picture and menu issues.
Introduction and specifications for the ComPair service tool.
Explanation of error codes, how to read, and clear the error buffer.
Method to view error codes using the front LED when no picture is available.
Information on protection modes and how the chassis reacts to fault situations.
Specific fault finding trees and repair tips for various TV symptoms.
Wiring diagram showing connections between different panels and components.
Block diagram illustrating the power supply and deflection circuits.
Block diagram detailing the video processing and signal flow.
Block diagram showing audio processing and control signal paths.
Overview of I2C bus interconnections and supply voltage distribution.
Detailed schematics for power supply and deflection modules.
Schematics for tuner, IF, audio amplifiers, and control interfaces.
Diagrams for CRT, PIP, LTI/CTI, and front interface panels.
Schematics for front interface, keyboard, and auxiliary power supplies.
Conditions and prerequisites for performing electrical alignments on the TV.
Procedures for hardware adjustments like Vg2 and focus.
Procedure to adjust the Vg2 voltage for optimal picture display.
Method to adjust the focus potentiometer for sharp picture elements.
Settings and alignments performed via service modes (SAM/SDM).
Explanation of various option bytes for configuring TV features and settings.
Alignment procedures for the tuner, including AGC and IF PLL.
Procedure for adjusting white tone and black cut-off levels.
Steps to align picture geometry using horizontal and vertical adjustments.
Default values for audio settings and NICAM alignment.
Overview of the L04 chassis, its features, and architecture.
Description of the power supply system, including block diagrams and voltage overview.
Explanation of horizontal and vertical deflection circuits and their operation.
Details on the micro controller, its functions, and pin configuration.
Description of the tuner and IF circuitry, including diversity and SAW filters.
How audio and video source selection is controlled via the Hercules IC.
Description of video processing features and block diagrams.
Explanation of audio decoding, features, and the audio amplifier.
Description of the PIP application, tuners, and power supply.
Glossary of abbreviations used throughout the manual.
Internal block diagrams and pin configurations for key ICs.
List of spare parts for general set components like lenses and cables.
List of spare parts for the mono carrier and its modules.
