1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings For continued safety, do not attempt to modify the circuit (READING SHOULD board.
1 Precautions 1-2 Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
2 Product Specifications 2-2 Pin Assignments Sync 15-Pin D-Sub Signal Cable Connector Type Separate Composite Sync-on-green Pin No. Green Green Green + H/V Sync. Blue Blue Blue DDC Return (GND) DDC Return (GND) DDC Return (GND) GND-R GND-R GND-R GND-G GND-G GND-G GND-B...
2 Product Specifications 2-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 2-1 Timing Chart Mode VESA VESA VGA2/ VGA3/ 640/75 Hz 800/60 Hz 800/75 Hz 1024/60 Hz 1024/75 Hz 1280/60 Hz...
3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the GS19ET TFT-LCD monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions:1. Disconnect the monitor from the power source before disassembly. 2.
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3 Disassembly and Reassembly 6. Remove 7 screws, 2 hexa screws from the boards and lift up the boards. Caution : When repairing panel only, disconnect just LVDS cable, Panel-Lamp / Wire marked in circle in the picture without removing the screws on board in order to lift the board up.
4 Alignments and Adjustments 4 Alignments and Adjustments This section of the service manual explains how to use the RS232 JIG. This function is needed for AD board change and program memory (IC110) change. 4-1 Required Equipment The following equipment is necessary for adjusting the monitor: •...
4 Alignments and Adjustments 4-6 Service Function Spec. 4-6-1 How to Display Service Function OSD 1. The value for brightness and contrast should be changed to zero. 2. Within 5 seconds, press the ( Enter/Auto) key. 3. Service function OSD will be displayed. •If you want to disable the service function OSD, you will have to power off.
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4 Alignments and Adjustments 4-6-3 How to Control Service Function OSD •After change the panel or lamp, you must reset service function OSD. •The case of panel change After changeing the panel, press the menu key within 5 seconds,. Then, panel Ch. No increases one step and the panel time information is reset to zero. Simultaneously, other information is reset to zero (Upper/Lower lamp, Panel cycle).
5 Troubleshooting 5 Troubleshooting Notes: 1. Before troubleshooting, setup the PC’s display as below. • Resolution: 1280 x 768 • H-frequency: 61 kHz • V-frequency: 75 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3.
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5 Troubleshooting 5-2 No Audio Check Stereo Cable. When Pin 2 of IC600 is DC 5V Check IC600 and related does proper DC 13V appear at circuit. Pin 7, 8 of IC600? When Pin 1 of IC502 is DC 13V Check IC502 and related does proper DC 6V appear at circuit.
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5 Troubleshooting 5-3 No Video WAVEFORMS Check signal cable connection and power. Replace or check related X400 oscillate properly? circuit. Is there R, G, B input at Check input part. R100, R101 and R103? Is there Hsync, Vsync waveform Check IC400 and related circuit.
7 Electrical Parts List 7 Electrical Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 7-1 Main PCB Parts Level Loc. No. Code No. Description & Specification Q'ty SA/SNA GS19ESSS/EDC 913V,GS19E,19,LCD-MO,NETHERLANDS M0014 BN94-00689E ASSY PCB MAIN-NTZ;GS19ES...
11 Schematic Diagrams 11 Schematic Diagrams * This Document can not be used without Samsung’s authorization. +5V_IN +5V_IN VCC_MCU VCC_MCU +5V_IN Vcc_PANEL_IN R200 1/16W 15" : +3.3V In 17"/19" : +5V In +3.3V_MAIN R201 OEM OPTION 1/16W C200 C201 Vcc_PANEL...
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Samsung Electronics Co.,Ltd. This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyeonggi-Do, Samsung Electronics Co., Ltd. Korea,443-742 Any unauthorized use of Manual can be Printed in Korea punished under applicable International P/N : BN82- and/or domestic law.