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Samsung LE37S71B User Manual

Samsung LE37S71B
160 pages
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TFT-LCD TV
Chassis GSM27SE
GSM32SE
GSM37SE
GSM40SE
Model LE27S71B
LE32S71B
LE37S71B
LE40S71B
Manual
SERVICE
TFT-LCD TV Fashion Feature
- Luxurious Slim Design
- Supreme Picture Quality
- Supreme Sound Quality
- Supreme Convenience Quality
- Convenience for Users

Table of Contents

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Samsung LE37S71B Specifications

General IconGeneral
Screen Size37 inches
Display TypeLCD
Resolution1366 x 768
Response Time8 ms
HDMI Ports2
Component Video Inputs1
Composite Video Inputs1
Viewing Angle178° (H) / 178° (V)
Audio Output2 x 10W
Input PortsHDMI, Component, Composite, PC Input

Summary

1 Precautions

1-1 Safety Precautions

Follow safety, servicing and ESD precautions to prevent damage and potential hazards.

1-2 Servicing Precautions

1-2-1 General Servicing Precautions

General precautions for servicing the unit, including unplugging and checking components.

1-3 Static Electricity Precautions

1-4 Installation Precautions

2 Product Specifications

2-1 Fashion Feature

Highlights features like digital tuner, DNIe technology, Dynamic Contrast, SRS TruSurround XT, and HDMI.

2-2 LE27S71B Specifications

2-3 LE32S71B Specifications

2-4 LE37S71B Specifications

2-5 LE40S71B Specifications

2-6 Specification Comparison

2-7 Option Specification

3 Alignments and Adjustments

3-1 Service Instruction

Instructions for TV-VCR adjustment, test equipment, impedance matching, signal handling, and safety transformers.

3-2 How to Access Service Mode

3-2-1 Entering Factory Mode

Sequence for entering service mode using remote control or function keys.

3-2-2 Panel Check

Procedure for checking the panel maker (AUO, AMLCD, CMO) and setting factory mode.

3-3 Factory Data

Calibration and Option Table

Details on calibration procedures (AV, DTV, PC) and option table settings for various features.

3-4 Service Adjustment

3-4-1 White Balance - Calibration

Procedure for calibrating white balance using specific equipment and patterns when picture color is wrong.

3-4-2 White Balance - Adjustment

Adjusting white balance by controlling sub brightness, R/G/B offset, and gain in factory mode.

3-5 Software Upgrade

3-5-1 How to Update Flash ROM

Steps to update Flash ROM using the Flash Downloader program and connecting the service jack.

4 Troubleshooting

4-1 First Checklist for Troubleshooting

Initial troubleshooting steps: check cable connections, power input to main board, and voltages between boards.

4-2 Checkpoints by Error Mode

4-2-1 No Power

Troubleshooting flowchart for 'No Power' issues, checking voltages and specific ICs.

4-2-2 No Video (Analog PC)

4-2-3 No Video (Digital-HDMI)

4-2-4 No Picture (Tuner_CVBS)

4-2-5 No Picture (Video_CVBS)

4-2-6 No Picture (S-VIDEO_Y,C)

4-2-7 No Sound

5 Exploded View and Parts List

5-1 LE27S71B Exploded View

Exploded view diagram showing the assembly of the LE27S71B TV and labeled components.

5-2 LE27S71B Parts list

5-3 LE32S71B Exploded View

5-4 LE32S71B Parts list

5-5 LE37S71B Exploded View

5-6 LE37S71B Parts list

5-7 LE40S71B Exploded View

5-8 LE40S71B Parts list

6 Electrical Parts List

6-1 LE27S71B Parts List

Detailed list of electrical parts for the LE27S71B model, organized by level and location.

7 Block Diagram

8 Wiring Diagram

8-1 LE27S71B / LE32S71B / LE37S71B / LE40S71B Wiring Diagram

Wiring diagram for various models including main board, power supply, and connectors.

8-2 Main Board Layout

8-3 PIN characteristic

CN800 - Main Board power supply

Pin assignment and function definition for the CN800 power supply connector on the main board.

CN600 / CN601 - SPEAKER CONNECTOR

Pin assignment for the speaker connector (CN600/CN601) on the main board.

CN221 - Front control

CN501 - Panel control

CN503-LVDS Signal

8-4 Power Board Layout

CN801 - AC Input

CN801 - Main Board power supply

CNM804 - Panel control

CN802 - Inverter Power Supply

CN803 - Inverter Power Supply

CN804 - Inverter Power Supply

9 Schematic Diagrams

9-1 Power_Sound Schematic Diagram

Schematic diagram for the power and sound sections of the TV.

9-2 Input Signal Schematic Diagrams

9-3 Micom Schematic Diagram

9-4 SVP-PX/PX-Power/LBE-Option Schematic Diagram

9-5 Application Schematic Diagram

10 Operating Instructions and Installation

10-1 Front

Overview of the TV's front panel controls and indicators, including source, menu, volume, and power.

10-2 Connection Panel

10-2 Connecting External Devices and Kensington Lock

10-3 Remote Control

10-4 Installing the Stand

10-5 Installing the Wall Mount Kit

11 Disassembly and Reassembly

11-1 Disassembly

Precautions and steps for disassembling the TV, including disconnecting power and removing the rear cover.

12 PCB Diagram

12-1 26" Main PCB Diagram

Diagram of the main PCB for the 26-inch model, showing component placement.

12-2 32", 37", 40" Main PCB Diagram

12-3 26" SMPS

12-4 32" SMPS

12-5 40" IP Board

13 Circuit Descriptions

13-1 Block description

Overview of the TV's main functional blocks: Main board, IP board, and T-con board.

13-2 SMPS and Inverter Block Diagram

13-2 Main Block

13-3 SMPS Board

13-3-1 26", 32" Power Block

Block diagram of the power section for 26" and 32" SMPS boards, illustrating PFC, resonance, and output stages.

13-3-2 26", 32" SMPS Diagram

Schematic diagram of the SMPS for 26" and 32" models, showing input, rectification, and output stages.

13-3-5 37" Power Block

13-3-6 37" SMPS Diagram

13-3-7 32", 40" IP Board

13-3-8 32", 40" IP Board

14 Reference Infomation

14-1 Technical Terms

Definitions of technical terms used in the manual, such as TFT-LCD, ADC, PLL, Inverter, AC Adapter, SMPS, FRC, and Image Scaler.

Signal Interface and Display Terms

Definitions of terms related to signal interfaces (TMD S, DDC, EDID) and display characteristics (Dot Pitch, Frequency).

Broadcasting and Input Type Definitions

Definitions of broadcasting types (Satellite, CATV) and input signal types (S-Video, VHF/UHF) and features.

14-2 Pin Assignments

14-2-1 DVI-D

Pin assignments for the 24-pin DVI-D connector, detailing signals like Rx, DDC, and GND.

14-2 Component

14-2-3 S-Video

14-2-4 A/V

14-2-5 D-SUB

14-2-6 PC Display mode

14-2-7 Scart 1

14-2-8 Scart 2

14-3 Timing Chart

14-3-1 LCD Panel Mode1 mode

Timing specifications for LCD panel Mode 1, including horizontal and vertical frequencies, and dot clock.

14-3 Supported Modes (1)

14-3 Supported Modes (2)

14-3 Supported Modes (3)

14-4 Panel Description

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