Hitachi CML151XW Service Manual
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Hitachi CML151XW Service Manual

Hitachi CML151XW 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
15" TFT LCD Display Panel
June 2000
No. 0508
CML151XW
CML151XJ
Data
contained
within
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.
this
Service
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Summary of Contents for Hitachi CML151XW

  • Page 1 No. 0508 CML151XW CML151XJ 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 ALL PRODUCTS CE MARK Before any service is performed on the chassis an 1. HITACHI products may contain the CE mark on isolation transformer should be inserted between the the rating plate indicating that the product power line and the product.
  • Page 3 POUR TOUS LES PRODUITS LABEL CE Avant d’effectuer une intervention d’entretien sur le 1. Les produits HITACHI peuvent avoir reçu le label châssis, vous devez insérer un transformateur d’isolement CE qui figure sur la plaque signalétique pour indiquer entre la ligne d’alimentation électrique et le produit.
  • Page 4 Hochspannung sollte immer auf den festgelegten Der Gebrauch von Ersatzteilen, die nicht dieselben Wert des Gehäuses beschränkt bleiben und nicht Sicherheitsmerkmale haben wie die empfohlenen mehr. Betrieb bei höherer Spannung kann zum HITACHI Ersatzteile, wie sie in der Ersatzteilliste Versagen Bildröhre oder hoher aufgeführt sind, kann zu elektrischem Schlag, Feuer,...

  • Page 5: Table Of Contents

    ABLE OF ONTENTS 1. Precautions and Notice ………….……………………………………… 1.1 Safety Precautions ………….………………………………………. 1.2 Product Safety Notice ……………………………………………… 1.3 Service Notes ………………………………………………………. 2. Descriptions ………….……………………………...………………….. 2.1 Monitor Description ……..………………………………………… 2.2 Timing Supported ……..……………………………………………. 3. Control Buttons and Functions …………………………………………. 3.1 User Control Buttons ..……..………………………………………. 3.2 Power LED ..……..………………………………………………….
  • Page 6 Hitachi CML151X LCD Monitor Service Manual Appendix A. CML151X Block Diagrams - - - - - - - - - - - - - - - - - - - - Page 30 Appendix B. Main Board Circuit Diagrams - - - - - - - - - - - - - - - - - - - Page 31 Appendix C.

  • Page 7: Precautions And Notice

    Hitachi CML151X LCD Monitor Service Manual 1. Precautions and Notice 1.1 Safety Precautions Although LCD monitors are displays without the high voltage present with CRTs, the following precautions still should be taken. 1) Observe all cautions and safety related notes located inside the display cabinet and on the display chassis.

  • Page 8: Descriptions

    Hitachi CML151X LCD Monitor Service Manual 2. Descriptions 2.1 Monitor Description Power Input AC 100V to 240V ± 10% Full Range Voltage Input Current < 1.2A @ 110V; < 0.6A @ 230V Maximum Inrush Current < 50A @ 110V; < 70A @ 230V (Measured when switched off for at least 10 mins.)

  • Page 9: Timing Supported

    Hitachi CML151X LCD Monitor Service Manual 2.2 Timing Supported Mode Resolution (kHz) (Hz) Pixel Clock (MHz) H pol. V pol.. 640 x 350 31.47 70.0 25.175 720 x 400 31.47 70.0 28.322 640 x 480 31.47 60.0 25.175 640 x 480 37.50...

  • Page 10: Control Buttons And Functions

    Hitachi CML151X LCD Monitor Service Manual 3. Control Buttons and Functions 3.1 User Control Buttons There are three control buttons, i.e., “MENU”, “? ” and the “? ”, and one power button on the front panel of the display, as well as an LED for power status indication.

  • Page 11: Power Led

    Hitachi CML151X LCD Monitor Service Manual 3.2 Power LED The color of the power LED depends on the power status of the monitor. When the LED color is continuously green it indicates the monitor is at normal operation state. When the LED is in amber and blinking it indicates the monitor is at a power saving state.

  • Page 12: Disassembly Instructions

    Hitachi CML151X LCD Monitor Service Manual 4. Disassembly Instructions To disassembly the monitor, follow the steps as below: 1) Face Down the Monitor. Note: Place the monitor face down on a smooth surface covered with soft material to protect the panel faceplate.
  • Page 13 Hitachi CML151X LCD Monitor Service Manual 4) Metallic Cover Removal: In Fig. 4-2, remove 6 screws (D) from the back metallic cover. Then remove the back metallic cover. 5) PCB Assembly Removal: Caution: When servicing or replacing the panel, disconnect the DC power jack.
  • Page 14 Hitachi CML151X LCD Monitor Service Manual 6) Panel Removal: (a) Panel is supplied as ITC. (b) Remove 5 screws (E) from the front cover (Fig. 4-2) to remove the panel.

  • Page 15: General Connection And Applications

    Hitachi CML151X LCD Monitor Service Manual 5. General Connection and Applications Procedures for installing and using this CML151X LCD monitor are described 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 16 Hitachi CML151X LCD Monitor Service Manual 4) First turn the PC power switch ON. Then apply power to the monitor display by pressing the power button. The power indicator LED will then illuminate. Note: Do not force the cable into the connector; line it up carefully so that you don’t bend...

  • Page 17: Electronic Circuit Description

    Hitachi CML151X LCD Monitor Service Manual 6. Electronic Circuit Description The block diagram of CML151X LCD monitor is shown in Appendix A. 6.1 Main Board Circuit The circuit diagrams of main board that labeled with PWB-0273-B are shown in Appendix B.
  • Page 18 Hitachi CML151X LCD Monitor Service Manual (3) PANEL INTERFACE Refer to circuit diagrams Sheet 3 of PWB-0273-B in Appendix B. The signals of panel interface are all from I007.D to the LCD panel. Pin-76 of I007.D (PPWR), I004 and Q004 (with its associated components R038 and C035) control the +5V power to the LCD panel.

  • Page 19: Keyboard, Led Board And Dc Jack Board Circuit

    Hitachi CML151X LCD Monitor Service Manual The signal INV_ON from pin-15 of I003 and fed into pin-5 of P007 is used to turn on the backlight inverter's power. The signal PWM1 (pin-8 of I003) is used for brightness control by adjusting inverter’s voltage.

  • Page 20: Troubleshooting Flow Chart

    Hitachi CML151X LCD Monitor Service Manual 7. Troubleshooting Flow Chart The flow chart of the procedures for troubleshooting please refers to Appendix E. 8. PCB Layout The PCB layout of CML151X LCD monitor is shown in Appendix F for main board.

  • Page 21: Electrical Part List

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  • Page 22 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 23 Appendix B. Main Board Circuits...

  • Page 28: Keyboard Pcb

    Appendix C S602 (UP) 12V DC JACK P601 P602 S603 (DN) P603 S604 (SEL) D601 R601 (GREEN) R602 P601 (YELLOW) S601 (POWER) Title KEY BOARD / DC JACK BOARD Size Document Number 7CDDC000030 Date: Tuesday, February 29, 2000 Sheet...
  • Page 29 Appendix D. Inverter Circuit...

  • Page 30: Panel/Accessory/Miscellaneous

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  • Page 31: Mechanical Disassembly

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  • Page 32: Packing And Other Part List

    APPENDIX F - PCB LAYOUT HITACHI...
  • Page 33 HITACHI...
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  • Page 44 Appendix G. Mechanical Disassembly...
  • Page 45 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: [email protected] Fax: +39 02 48786381/2 Email: [email protected] 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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