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Skyworth 8M26S User Manual

Skyworth 8M26S
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SERVICE MANUAL
8M266 CHASSIS
Description:
MODEL.
Engineering Dept:
Artwork By:
Checked By:
Approved By:
Brand Name:
JOB NO.
Date:
Date:
Date:
SERVICE MANUAL 8M26S
2011-8-10
SKYWORTH
SIZE:A5
Design and specifications are subject to change without prior notice.
(Only Referrence)
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Skyworth 8M26S Specifications

General IconGeneral
BrandSkyworth
Model8M26S
CategoryChassis
LanguageEnglish

Summary

Technical Specification

Application Area

Defines the intended use for the LED 8M26S chassis.

General Specification

Details general operational parameters like input voltage, market, and tuning system.

Feature and Function

Lists the supported features and functionalities of the TV.

Safety and Regulation

Outlines safety standards and regulatory compliance requirements.

Video Specifications

Details performance specifications related to video display.

Chroma Specifications

Specifies parameters related to color reproduction and accuracy.

Audio Specifications

Details performance specifications for audio output and quality.

Power Specifications

Lists the electrical power requirements and DC voltages.

External Interface Specifications

Details specifications for various external input/output connections.

Video Input Levels

Specifies input voltage levels for RGB and Component video signals.

RGB Input Frequencies

Details horizontal frequency and frame rate for RGB input.

Other Specifications

Covers miscellaneous technical specifications and customer menu setup.

Reliability Specifications

Provides data on the product's durability and expected lifespan.

IC Block Diagrams

Voltage Regulators

Block diagrams for LD1117, LD1084, and AS1117L voltage regulators.

Step-Down Converter

Block diagram for the MP2105DJ synchronous step-down converter.

Main Controller IC

Pin diagram for the MST6E181VS LCDTV controller.

DDR Memory IC

Pin diagram for the M13S2561616A DDR memory.

Serial Flash Memory

Block diagram for the 32M BIT CMOS Serial Flash memory.

HDMI Switch IC

Pin mapping for the PS331TQFP64G HDMI switch.

Audio Amplifier IC

Block diagram for the TPA3113D2 dual audio amplifier.

Transistor Markings

SMBT3906 Transistor

Identification marking for the SMBT3906 transistor.

PMBT 3904 Transistor

Identification marking for the PMBT 3904 transistor.

Main PCB Layout

Top/Bottom Layer View

Visual representation of the main PCB's top and bottom layers.

Factory Adjust Menu

Entering and Exiting Factory Mode

Instructions for accessing and leaving the factory adjustment menu.

Software and Panel Information

How to view software version and panel configuration details.

Aging Mode Operation

Procedure to activate and use the aging mode for testing.

ADC Calibration Procedures

Detailed steps for calibrating YPBPR and VGA Analog-to-Digital Converters.

White Balance and Overscan Adjustment

Methods for adjusting white balance and overscan settings.

Factory Reset and Software Update

Procedures for performing a factory reset and updating firmware via USB.

External Schematic and Installation

Front Panel Overview

Description of front panel controls and indicators on the TV.

Back Panel Connections

Details of back panel connectors and their functions for input/output.

Antenna and Cable Connection

Instructions for connecting various types of antennas and cables.

Remote Control Functions

Explanation of all buttons and their operations on the TV remote control.

Menu Control

Basic Menu Operation

Explains fundamental navigation and interaction within the TV's menu system.

Picture Settings Adjustments

Covers adjustments for picture mode, brightness, contrast, color, tint, and sharpness.

Sound Settings Adjustments

Details options for sound mode, bass, treble, balance, AVL, and surround.

Installation Settings

Configuration options for TV installation, channel search, and fine-tuning.

Setup Settings

General system configuration including OSD language and panel key lock.

Advanced Settings

Options for advanced settings like V-CHIP, TV/Movie rating, and password management.

PC Mode Settings

Specific adjustments available when the TV is in PC input mode.

Media Player Control

Media Player Usage Guidelines

Important reminders and cautions for using the media player function.

Supported File Formats

Lists supported video, audio, and photo file types and codecs.

Media Menu Navigation

Instructions for navigating and selecting media types (Video, Music, Photo, Text).

Video Playback Controls

Details on controlling video playback, including playback modes and seek functions.

Music Playback Controls

Details on controlling music playback, including playback modes and file navigation.

Photo Slideshow Controls

Details on controlling photo slideshows, including rotation and zoom.

Text File Viewing Controls

Instructions for viewing text files and navigating through content.

Troubleshooting Guide

Picture and Sound Issues

Resolves problems related to no picture, no sound, or incorrect colors.

Remote and Input Issues

Troubleshoots remote control malfunctions and input signal problems.

Interference and Ghosting

Addresses issues like snowy dots, interference, ghosting, and picture ripples.

PC Mode Specific Issues

Solutions for blank screens or resolution problems when using PC input.

Service Flow Charts

No Audio/Backlight Troubleshooting

Flowchart for diagnosing and resolving no audio or no backlight issues.

Video/Color Troubleshooting

Flowchart for diagnosing and resolving video or color display problems.

Audio/Video Troubleshooting

Flowchart for diagnosing and resolving audio with no video issues.

Circuit Diagrams

Power Supply Circuits

Schematics for the main power supply and voltage regulation circuits.

Audio Amplifier Circuit

Schematic for the TV's audio amplifier stage.

Interface Circuits

Schematics for USB and HDMI interfaces.

Video Input Circuits

Schematics for VGA and AV/SCART video input connections.

Tuner Circuit

Schematic detailing the TV tuner and associated filtering circuitry.