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Hitachi CML200UXWB Service Manual

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CAUTION:
Before servicing this chassis, it is important that the service technician read the "Safety
Precautions" and "Product Safety Notices" in this service manual.
ATTENTION:
Avant d'effectuer l'entretien du châassis, le technicien doit lire les «Précautions de sécurité»
et les «Notices de sécurité du produit» présentés dans le présent manuel.
VORSICHT:
Vor Öffnen des Gehäuses hat der Service-Ingenieur die „Sicherheitshinweise" und „Hinweise
zur Produktsicherheit" in diesem Wartungshandbuch zu lesen.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
LCD MONITOR
July 2002
No. 0534
CML200UXWB
Data
contained
within
this
manual is subject to alteration for
improvement.
Les données fournies dans le présent
manuel d'entretien peuvent faire l'objet
de modifications en vue de perfectionner
le produit.
Die
in
diesem
Wartungshandbuch
enthaltenen Spezifikationen können sich
zwecks Verbesserungen ändern.
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  • Page 1 No. 0534 CML200UXWB SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the “Safety Precautions” and “Product Safety Notices” in this service manual. Data contained within this Service manual is subject to alteration for improvement.

  • Page 2: Table Of Contents

    ABLE OF ONTENTS 1. Precaution and Notices ………….……………………………………… 1.1 Safety Precaution ………….………………………………………. 1.2 Product Safety Notice ……………………………………………… 3 1.3 Service Notes ………………………………………………………. 3 2. Specifications ………….……………………………...………………… 4 2.1 Monitor Specifications ……..………………………………………. 5 2.2 Timing Supported – Analog Inputs ..………………………………. 2.2 Timing Supported – Digital Inputs ..……………………………….. 6 3.

  • Page 3: Precaution And Notices

    1. Precautions and Notices 1.1 Safety Precautions Although LCD monitors are displays without high voltage as that in the CRTs, the following precautions still should be take care of. 1) Observe all cautions and safety related notes located inside the display cabinet and on the display chassis.

  • Page 4: Specifications

    2. Specifications 2.1 Monitor Specification LCD Module 20.1-in, active matrix TFT, anti-glare coating, 0.255 mm pixel pitch Display Size 408 mm x 306 mm Viewing Angle Left/Right 85° / 85°(Typical) Up/Down 85° /85°(Typical) Luminance 250 cd/m (Typical) Contrast Ratio 500 : 1 (Typical) Display Colors 16.7 million Power Input...
  • Page 5 Altitude 10000m Max. Analog Inputs Mode Mode Name H.Freq.(KHZ) H. Polarity Pixel CLK Resolution V.Freq.(HZ) V. Polarity (MHZ) － VGA 60HZ 31.469 25.175 640*480 59.941 － － VGA 72HZ 37.804 31.5 640*480 72.81 － － VGA 75HZ 37.5 31.5 640*480 75.0 －...
  • Page 6 2.3 Digital Input: Mode Mode Name H.Freq.(KHZ) H. Polarity Pixel CLK Resolution V.Freq.(HZ) V. Polarity (MHZ) － VGA 60HZ 31.469 25.175 640*480 59.941 － － VGA 75HZ 37.5 31.5 640*480 75.0 － ＋ SVGA 60HZ 37.879 40.0 800*600 60.317 ＋ ＋...

  • Page 7: Adjusting Your Display

    3. Adjusting Your Display This chapter contains information about how to changing display settings for your LCD Monitor. It is designed with an OSD menu to help you easily adjust to its optimum performance. Note: You must perform auto setup before making any adjustment. Summary of Control Buttons There are three control buttons located at the lower part of the front panel of your display: Select: Display the On-Screen Display (OSD) “Main Menu”...

  • Page 8: Disassembly Instructions

    4. Disassembly Instructions To disassembly the monitor, follow the steps as below: 1) Face Down the Monitor. Note: Face the monitor down on a smooth plane with a soft material on that plane to protect the panel faceplate. 2) Hinge Cover and base Removal As below, remove the hinge cover and the 4 screw “B”...
  • Page 9 3) Back Cover Removal: As below, after removing the base, there will be 7 screws (indicated by “D”), and remove them. Then you can remove the back covere “E” of the monitor. 4) Metallic Cover Removal: Remove 12 screws indicated as “F” from the back metallic cover. Then remove the back metallic cover “G”.
  • Page 10 5) PCB Assembly Removal: Caution: When serving or replacing the panel, disconnect the DC power jack completely. (a) Unplug all connected wires from the PCB. (b) Remove 4 screws indicated as “H” from the audio board, and then remove the board carefully.
  • Page 11 6) Speaker Removal: As below, remove the 6 screw “A” then remove the back cover “D”. Remove the 4 screen “B” to remove the trumpet and 2 screen “C” to remove the speaker audio in connector.

  • Page 12: General Connection And Applications

    5. General Connection and Applications Procedures for installing and using this CML171SX LCD monitor are described as below. 5.1 Connecting the monitor to the computer 1) Place the display on a flat, sturdy surface. Choose an area free from excessive heat, moisture, and sunlight.

  • Page 13: Electronic Circuit Description

    Pin Assignment of 15-pin D-SUB connector Red Video +5V for DDC circuit Green Video Logic Ground Blue Video Monitor Ground Monitor Ground DDC-Serial Data DDC-Return H-Sync. Red Ground V-Sync. Green Ground DDC-Serial Clock Blue Ground Pin Assignment of 25-pin DVI-D connector RX2- RX2+ DETECT...

  • Page 14: Electronic Block Diagram

    7. Electronic Block Diagram +12V ADAPTER XTAL SDRAM Power Supply 19V DC +3.3V +2.5V Analog R.G.B gm5060 gm5060 gm5060 gm5060 EDID EPROM Digital DVI TMDS DIGITAL VIDEO EDID SCALER EPROM 292PIN PBGA Package EEPROM Keypad Inverter XTAL Audio Audio Amplifier Speaker/Earphone Audio Input Sorround...

  • Page 15: Troubleshooting Flow Chart

    8. Troubleshooting Flow Chart No image appear Voltage of P310(PWB-0433) at pin Replace PWB-0433 LED light up 3,4 are 5V and pin 7,8 are 12V LED display is LED Display is amber green Replace MCU I005 Voltage of P010(PWB-0432) at pin Replace PWB-0433 28,29,30 are 12V Is LVDS cable...
  • Page 16 No sound output (PWB-0433) Are the waveforms at pin 15(L_IN) and Check audio source pin 2(R_IN) of I301 normal Are the waveforms at pin 1(L_OUT) and Replace PWB-0433 pin 7(R_OUT) of P306 normal Are two speakers Replace speakers working correctly...

  • Page 17: Appendix A. Pcb Circuit

    Appendix A. PCB Circuit...
  • Page 25 R602...

  • Page 26: Appendix B. Pcb Layout

    Appendix B. PCB Layout...
  • Page 27 No. 0534 MAIN BOARD...
  • Page 28 SUB-BOARDS POWER-AUDIO BOARD KEYBOARD No. 0534 POWER-AUDIO BOARD AND SUB-BOARDS...

  • Page 29: Appendix C. Parts Lists

    Appendix C. Parts List...
  • Page 30 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...

  • Page 31: Appendix D. Mechanical Disassembly

    Appendix D. Mechanical Disassembly...
  • Page 33 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: csgswe@hitachi -eu.com Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi -eu.com HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...

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