Samsung 203B user manual

User manual for the device Samsung 203B

Device: Samsung 203B
Category: Computer Monitor
Manufacturer: Samsung
Size: 1.63 MB
Added : 6/20/2014
Number of pages: 57
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

LCD-Monitor
Chassis LHA20BS
Model 203B
Manual
SERVICE
LCD Monitor
Fashion Feature
- Premium HAS application(Lift 80mm)
- Magic Rotation application
(Auto pivot Delete)
- Embeded Power, Mechanical S/W
application

Summary of the content on the page No. 2

Copyright Trademarks Samsung is the registered trademark of Samsung ©2005 by Samsung Electronics Co., Ltd. Electronics Co., Ltd. All rights reserved. LHA20BS and MacMaster Cable Adapter are This manual may not, in whole or in part, be copied, trademarks of Samsung Electronics Co., Ltd. photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior Macintosh, Power Macintosh are trademarks of Apple written permission of Samsung Electronics Co., Ltd.

Summary of the content on the page No. 3

Contents 1 1. Precautions………………………………………………………………………………………………………………………………………1 1-1 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 2. Product specifications …………………………………………………………………………………………………………………………2 2-1 2-1 Fashion Featu

Summary of the content on the page No. 4

Contents 9 9. Schematic Diagrams ……………………………………………………………………………………………………………………………9 9-1 9-1 Schematic Diagrams……………………………………………………………………………………………………………………… 9-1 9-2 Schematic Diagrams ………………………………………………………………………………………………………………………9-3 1 10. Operating Instructions and Installation … ……………………………………………………………………………………………………10-1 10-1 Front …………………………………………………………………………………………………………………………………… 10-1 10-2 Rear ………………………………………………………………………………………………………………………………………10-2 10-3 Using the Stand ………………………………………………………………

Summary of the content on the page No. 5

Samsung Electronics Co.,Ltd. -This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be punished Printed in Korea under applicable International and/or domestic P/N : BN82-00136F-00 law. URL : http://itself.sec.samsung.co.kr/

Summary of the content on the page No. 6

10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front 1. Menu button 3) Internet : Medium brightness Opens the OSD menu. Also use to exit the OSD For working with a mixture of images such as text menu or return to the previous menu. and graphics. 2. MagicBright button 4) Game MagicBright is a new feature providing optimum For watching motion pictures such as a game. viewing environment depending on the contents of the image you are watching. Curre

Summary of the content on the page No. 7

10 Operating Instructions and Installation 4. Enter button / Source button 5. Auto button Activates a highlighted menu item. / When the 'AUTO' button is pressed, the Auto Push the 'SOURCE', then selects the video signal Adjustment screen appears as shown in the ani- while the OSD is off. (When the source button is mated screen on the center. Auto adjustment pressed to change the input mode, a message allows the monitor to self-adjust to the incoming appears in the left upper side of the screen

Summary of the content on the page No. 8

10 Operating Instructions and Installation DVI IN port : Connect the DVI Cable to the DVI IN port on the back of your monitor. (SOURCE : digital) RGB IN port : Connect the signal cable to the RGB IN port on the back of your monitor. (SOURCE : analog) Kensington Lock : The Kensington lock is a device used to physically fix the system when using it in a public place. (The locking device has to be purchased separately.) Stand Stopper : Remve the fixing pin on the stand to lift the monito

Summary of the content on the page No. 9

10 Operating Instructions and Installation 10-3 Using the Stand 10-3-1 Removing the base 1. Turn off your monitor and unplug its power cord. 2. Lay the LCD monitor face-down on a flat surface with a cushion beneath it to protect the screen. 3. Remove four screws(A) and then remove the Stand from the LCD monitor. 10-4

Summary of the content on the page No. 10

10 Operating Instructions and Installation 10-3-2 Attaching a Base - This monitor accepts a 100mm x 100mm VESA-compliant mounting interface pad. 1 2 34 A. Monitor B. Mounting interface pad 1. Turn off your monitor and unplug its power cord. 2. Lay the LCD monitor face-down on a flat surface with a cushion beneath it to protect the screen. 3. Remove four screws and then remove the stand from the LCD monitor. 4. Align the mounting interface Pad with the holes in the rear cover mounting pad an

Summary of the content on the page No. 11

10 Operating Instructions and Installation Memo 10-6

Summary of the content on the page No. 12

11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the 203B TFT-LCD monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions: 1.Please the power off, before disassemble the monitor. 2.Please do not use other jig except given jig when disassemble. 3.Please disassemble based on given process as below. 4.Back c

Summary of the content on the page No. 13

11 Disassembly and Reassembly Description Picture Description 3. Remove 1 screws from Lamp shield 4. Disconnect a FUNCTION Wire from PCB ASS Y. 5. Disconnect 4 Lamp Wire and Wire. 6. Disconnect a LVDS Wire from Panel. 11-2

Summary of the content on the page No. 14

11 Disassembly and Reassembly Description Picture Description 7. Remove 4 hexa screws from PBA board which is connected PCB bracket. 8. Remove 4 screws from PBA board and pull up the PBA from the bracket as picture. 9. Totally disassembled PBA board. 11-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 11-3

Summary of the content on the page No. 15

11 Disassembly and Reassembly Memo 11-4

Summary of the content on the page No. 16

13 Circuit Descriptions 13 Circuit Descriptions 13-1 Block description 13-1

Summary of the content on the page No. 17

13 Circuit Descriptions 13-2 Block operating NoFeature Description Scaler Integrate ADC and TMDS, Scaling part. 1 Scaler DDR 2 DDR memory Save frame information that SCALER needed . MEMORY Microcontroller. 3 MICOM Micom control all function of monitor. Analog signal from the PC is changed to digital signal using the A/D converter integrated in scaler(MST6281). Scaler scale this digital singal to optimal signal fit to the panel and encode the LVDS signal. This LVDS signla enter the panel to

Summary of the content on the page No. 18

14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms - TFT-LCD - FINE (Thin film Transistor Liquid Crystal Display) "Fine" adjustment is used to adjust visibility by ADC(Analog to Digital Converter) control phase difference. This is a circuit that converts from analog signal to digital signals. - COARSE This is a adjustment by tuning with Video colck - PLL(Phase Locked Loop) and PLL clock. During progressing ADC, Device makes clock synchronizing HSYNC with Video clock - DVI (D

Summary of the content on the page No. 19

14 Reference Infomation - Dot Pitch - External Device Input The image on a monitor is composed of red, green External device input refers to video input from and blue dots. The closer the dots, the higher the such external video devices as VCRs, camcorders resolution. The distance between two dots of the and DVD players, separate from a TV broadcast. same color is called the 'Dot Pitch'. Unit: mm - DVD A type of digital disk technology that takes up only - Vertical Frequency the benefits of CD

Summary of the content on the page No. 20

14 Reference Infomation - Connecting the Monitor 1. Connect the DC adapter for your monitor to the power port on the back of the monitor. Plug the power cord for the monitor into a nearby outlet. 2-1. Using the D-sub (Analog) connector on the video card. Connect the signal cable to the 15-pin, D-sub connector on the back of your monitor. 2-2. Using the DVI (Digital) connector on the video card. Connect the DVI cable to the DVI port on the back of your monitor. 2-3. Connected to a Macintosh. C


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