Samsung SyncMaster 226BW User manual

SERVICEManual

LCD Monitor Fashion Feature

LCD-Monitor

Chassis LME20WS

LME22WS

Model 206BW

226BW

- Magic Bright

- Magic Color

- Integrated UI applied

- Hidden Function Key

- Lustrous Appearance (Design)

This manual may not, in whole or in part, be copied,

photocopied, reproduced, translated, or converted to

any electronic or machine readable form without prior

written permission of Samsung Electronics Co., Ltd.

LME20WS/LME22WS Service Manual

First edition December 2006.

Printed in Korea.

Trademarks

Samsung is the registered trademark of Samsung

Electronics Co., Ltd.

LME20WS/LME22WS and MacMaster Cable Adapter

are trademarks of Samsung Electronics Co., Ltd.

Macintosh, Power Macintosh are trademarks of Apple

Computer, Inc.

All other trademarks are the property of their respective

owners.

11. Precautions………………………………………………………………………………………………………………………………………11-1

1-1 Safety Precautions ……………………………………………………………………………………………………………………… 1-1

1-2 Servicing Precautions …………………………………………………………………………………………………………………… 1-2

1-3 Electrostatically Sensitive Devices (ESD) Precautions ……………………………………………………………………………… 1-2

1-4 Installation Precautions ………………………………………………………………………………………………………………… 1-3

2. Product specifications …………………………………………………………………………………………………………………………22-1

2-1 Fashion Feature…………………………………………………………………………………………………………………………… 2-1

2-2 Feature …………………………………………………………………………………………………………………………………… 2-1

2-3 LME20WS Specifications ………………………………………………………………………………………………………………… 2-2

2-4 LME22WS Specifications ………………………………………………………………………………………………………………… 2-3

2-5 Spec Comparison ………………………………………………………………………………………………………………………… 2-4

2-6 Option Specification ……………………………………………………………………………………………………………………… 2-5

3. Alignments and Adjustments …………………………………………………………………………………………………………………33-1

3-1 Required Equipment …………………………………………………………………………………………………………………… 3-1

3-2 Automatic Color Adjustment …………………………………………………………………………………………………………… 3-1

3-3 DDC EDID Data Input …………………………………………………………………………………………………………………… 3-1

3-4 Service Function Spec. ………………………………………………………………………………………………………………… 3-2

3-5 Hidden Key list …………………………………………………………………………………………………………………………… 3-3

3-6 EDID Installation with Windows Program ………………………………………………………………………………………………3-4

3-7 Execution Items after replacing the main board ………………………………………………………………………………………3-4

4. Troubleshooting …………………………………………………………………………………………………………………………………44-1

4-1 No Power ……………………………………………………………………………………………………………………………………4-1

4-2 No Video (PC Analog Signal) …………………………………………………………………………………………………………… 4-3

4-3 No Video (PC Digital Signal) …………………………………………………………………………………………………………… 4-5

5. Exploded View and Parts List ………………………………………………………………………………………………………………55-1

6. EElectrical Parts List ……………………………………………………………………………………………………………………………66-1

7. BBlock Diagram …………………………………………………………………………………………………………………………………77-1

Contents

88. Wiring Diagram …………………………………………………………………………………………………………………………………88-1

9. SSchematic Diagrams ……………………………………………………………………………………………………………………………99-1

9-1 Schematic Diagrams ……………………………………………………………………………………………………………………… 9-1

9-2 Schematic Diagrams ………………………………………………………………………………………………………………………9-3

10. Operating Instructions and Installation ………………………………………………………………………………………………………10-1

10-1 Front …………………………………………………………………………………………………………………………………… 10-1

10-2 Rear ………………………………………………………………………………………………………………………………………10-2

10-3 Using the Stand …………………………………………………………………………………………………………………………10-4

11. Disassembly and Reassembly ………………………………………………………………………………………………………………111-1

11-1 Disassembly …………………………………………………………………………………………………………………………… 11-1

11-2 Reassembly …………………………………………………………………………………………………………………………… 11-3

12. PCB Diagram …………………………………………………………………………………………………………………………………112-1

13. CCircuit Descriptions ……………………………………………………………………………………………………………………………113-1

13-1 Block description ……………………………………………………………………………………………………………………… 13-1

13-2 Block operating ……………………………………………………………………………………………………………………… 13-2

14. Reference Infomation ……………………………………………………………………………………………………………………… 114-1

14-1 Technical Terms ……………………………………………………………………………………………………………………… 14-1

14-2 Pin Assignments…………………………………………………………………………………………………………………………14-4

14-3 Timing Chart ……………………………………………………………………………………………………………………………14-5

14-4 Preset Timing Modes ………………………………………………………………………………………………………………… 14-6

14-5 Panel Description ……………………………………………………………………………………………………………………… 14-7

Contents

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City,

Gyeonggi-Do, Korea, 443-742

Printed in Korea

P/N : BN82-00138M-00

URL : http://itself.sec.samsung.co.kr/

-This Service Manual is a property of Samsung

Electronics Co., Ltd.

Any unauthorized use of Manual can be punished

under applicable International and/or domestic

law.

11 Disassembly and Reassembly

11-1

11 Disassembly and Reassembly

This section of the service manual describes the disassembly and reassembly procedures for the LHA20WS

TFT-LCD monitors.

WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling

these components.

11-1 Disassembly

Cautions: 1. Disassembly stand on the flat desk.

2. Disconnect the monitor from the power source before disassembly.

Description Picture Description

1. Remove 3 screws from the stand and

Remove stand.

2. Remove 3 screws from the stand and Lift up

back cover.

11 Disassembly and Reassembly

11-2

Description Picture Description

4. Use the jig to remove the shield lamp.

(Be careful Shield.)

5. Remove the FUNCTION Wire from PCB ASS’Y.

6. Remove the Panel Lamp wire.

7. Remove the LVDS Wire from Panel.

8. Remove 4 screws.

9. Remove 4 screws and Lift up the Main PCB and

IB Board.

11 Disassembly and Reassembly

11-3

10. Main PCB and IB Board

Description Picture Description

11 Disassembly and Reassembly

11-4

11-2 Reassembly

Reassembly procedures are in the reverse order of disassembly procedures.

12 PCB Daigram

12-1

12 PCB Diagram

12-1 Main PCB

SDRAM Memory

scaler

Flash memory

EEPROM

FET Array

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