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Hansol H950VI B19BF Service Manual

19inch (viewable size 19.0 ) tft lcd analogue color monitor
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19
Inch (Viewable size 19.0 )
TFT LCD Analogue Color Monitor
H950VI (B19BF)

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Summary of Contents for Hansol H950VI B19BF

  • Page 1 Inch (Viewable size 19.0 ) TFT LCD Analogue Color Monitor H950VI (B19BF)

  • Page 2: Table Of Contents

    Contents 1. Precautions Safety Precautions Servicing Precautions Electrostatically Sensitive Devices (ESD) Precautions 2. Product Specifications Specifications Pin Assignment Table D-Sub 15 Pin Connector Timing Chart Dimensions 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Parts List 6. Packing & Unpacking 7.
  • Page 3 Combo board PCB Semiconductor Aead Identification 11. Schematic Diagram Copyright 2003 by Hansol LCD Inc. All rights reserved. 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 Hansol Electronics Inc.

  • Page 4: Precautions

    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 1. For continued safety, do not attempt to modify the circuit board. 2.
  • Page 5 Precautions c. Use a SSVM or VOM with 1000 ohms per-volt or higher sensitivity to measure the AC voltage drop across the resistor (see Figure 1-1). d. Connect the resistor to an exposed metal part having a return path to the chassis(metal cabinet, screw heads, knobs, shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.

  • Page 6: Servicing Precautions

    Precautions 1-2 Servicing Precautions WARNING : An electrolytic capacitor installed with the wrong polarity might explode. Caution : Before servicing instruments covered by this service manual and its supplements, read and follow the Safety Precautions section of this manual. Note : If unforeseen circumstances create conflict between the following servicing preautions and any of the safety precautions, always follow the safety precautions.

  • Page 7: Electrostatically Sensitive Devices(Esd) Precautions

    Precautions 1-3 Electrostatically Sensitive Devices(ESD) Precautions Some semiconductor (solid state) devices can be easily damaged by static electricity. such components are commonly called Electrostatically Sensitive Devices(ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors. The following techniques will reduce the incidence of component damage caused by static electricity.

  • Page 8: Product Specifications

    Precautions 2. Product Specifications 2-1 Specifications Model H950VI (B19BF) Type Amorphous Active Matrix Super TFT LCD (LTM 190E1 - L01) Screen Size 376.32(H) X 301.056(V) mm (19 inch diagonal) Maximum Resolution 1280 X 1024 @ 75Hz Pixel Range 0.294mm X 0.294mm LCD PANEL Display Colors 8 bit data =16.7 million colours...

  • Page 9: Timing Chart

    Product Specifications 2-2 Pin Assignment The 15-pin D-sub connector(male) of the Analog signal cable Pin No. Assignment Pin No. Assignment Red Video 5V Input Green Video ST_DET Blue Video Ground Ground H.Sync Red Video Ground V.Sync Green Video Ground Blue Video Ground The 24 pin DVI-D cable Pin Connection Signal Signal...

  • Page 10: Dimensions

    Product Specifications 2-4 Dimensions FRONT VIEW SIDE VIEW REAR VIEW Service Manual...

  • Page 11: Disassembly And Reassembly

    Disassembly and Reassembly 3. Disassembly and Reassembly The section of the service manual describes the disassembly and reassembly procedure for H950VI. WARNING : This has to be disassembled and reassembled carefully because TFT-LCD Panel is weak for impact. This monitor contains electrostatically sensitive devices. Use caution when handling these components.
  • Page 12 Disassembly and Reassembly Fiqure Service Manual...
  • Page 13 Disassembly and Reassembly 3-2 Reassembly 3-2-1 Display part Reassembly Reassembly procedures are in the reverse order of Disassembly Procedures. Confirm that insulation plate puts into on the left of the TFT-LCD panel and main chassis. 3-2-2 Stand(Power Stand & Normal Stand) part Reassembly Reassembly procedures are in the reverse order of Disassembly Procedures.

  • Page 14: Troubleshooting

    Troubleshooting 4. Troubleshooting 4-1 Micom(WT61P4L44) We can check the micom operation correctly by press the soft power switch. When the chip does not operate in the normality, power indicating the LED is always extinguished. In the normality, if the screen appear 'No Signal' or 'No Cable', the LED is green amber. When the screen is displayed, the LED is green light.
  • Page 15 Troubleshooting 4-3-2 When screen is just black ! Check & Check Diagram Order point Replace Item LVDS Cable Check LVDS Cable is it ok? LVDS Cable INVERTER Check inverter lamp cable Is it OK? INVERTER Lamp Cable Lamp cable Does proper DC +5V COMBO &...

  • Page 16: Exploded View & Parts List

    Exploded View & Parts List 5. Exploded View & Parts List 13-B 13-A 11-C 11-B 11-A 10-E 10-G 10-F 10-C 10-D 10-B 10-A 15-D 15-C 15-B 15-A Service Manual...
  • Page 17 Introduction Exploded View & Parts List Exploded View & Parts List PART NAME CODE NO. DESCrIPTION Q’TY PART NAME CODE NO. DESCrIPTION Q’TY...

  • Page 18: Packing & Unpacking

    Packing & Unpacking 6. Packing & Unpacking Description Specification Quantity Remarks Tape-Masking OPP W75 CLR 1.2 Mt Carton Box B19AF CB DW-3 Set-Monitor B19AF 1Set EPS 60M C=0.018 Cushion-L/R B19AF 1Set 19" TFT Monitor Gift Box B19AF Cable Etc. Service Manual...

  • Page 19: Electrical Parts List

    Electrical Parts List Introduction 7. Electrical Parts List 7-1. Main Control Board LOCATION No. PART NO. TYPE DESCRIPTION Service Manual...

  • Page 20: Electrical Parts List

    Electrical Parts List LOCATION No. PART NO. TYPE DESCRIPTION Service Manual...

  • Page 21: Combo Board

    Electrical Parts List 7-2. Combo Board LOCATION NO. TYPE DESCRIPTION Q'ty °… °… °… °… °… °… °… Service Manual...
  • Page 22 Electrical Parts List LOCATION NO. TYPE DESCRIPTION Q'ty Service Manual...

  • Page 23: Osd Control Board

    Electrical Parts List LOCATION NO. TYPE DESCRIPTION Q'ty 7-3. OSD Control Board LOCATION No. PART NO. TYPE DESCRIPTION Service Manual...

  • Page 24: Panel

    Electrical Parts List 7-4. Panel PART NO. TYPE DESCRIPTION Q'ty Service Manual...
  • Page 25 Block Diagram 8. Block Diagram Service Manual...
  • Page 26 Wiring Diagram 9. Wiring diagram Service Manual...
  • Page 27 PCB Layout 10. PCB Layout 10-1. Main PCB 10-1-1 TOP View Service Manual...
  • Page 28 PCB Layout 10-1-2 Bottom View 10-2. Key Control Board 10-2-1 TOP View 10-2-2 Bottom View Service Manual...
  • Page 29 PCB Layout 10-3. COMBO board PCB 10-3-1 TOP View Service Manual...
  • Page 30 PCB Layout 10-3-2 BOTTOM View Service Manual...
  • Page 31 PCB Layout 10-3. Semiconductor Lead Identification, Service Manual...
  • Page 32 PCB Layout 10-3. Semiconductor Lead Identification, Service Manual...
  • Page 33 Schematic Diagrams Schematic Diagrams 11. Schematic Diagrams 11-1. Main Control Board 11-1-1. VGA_INPUT LINE Service Manual Service Manual...
  • Page 34 Schematic Diagrams Schematic Diagrams 11-1-2. DVI INPUT LINE Service Manual Service Manual...
  • Page 35 Schematic Diagrams Schematic Diagrams 11-1-3. MCU Service Manual Service Manual...
  • Page 36 Schematic Diagrams Schematic Diagrams 11-1-4. SCALER Service Manual Service Manual...
  • Page 37 Schematic Diagrams Schematic Diagrams 11-1-5. POWER Service Manual Service Manual...
  • Page 38 Schematic Diagrams Schematic Diagrams 11-1-6. AUDIO Service Manual Service Manual...
  • Page 39 Schematic Diagrams Schematic Diagrams 11-2 OSD Control Board 11-2 OSD Control Board Service Manual Service Manual...
  • Page 40 Schematic Diagrams Schematic Diagrams 11-3 Combo Board 11-3-1 Combo Inverter Service Manual Service Manual...
  • Page 41 Schematic Diagrams Schematic Diagrams 11-3-2 Combo Power Service Manual Service Manual...

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