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Hitachi CML170SXW 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.
SERVICE MANUAL
MANUEL D'ENTRETIEN
WARTUNGSHANDBUCH
October 2000
No. 0504
CML170SXW
Data contained within this Service
manual is subject to alteration for
improvement.
Les données fournies dans le
présent
manuel
d'entretien
peuvent
faire
l'objet
modifications
en
perfectionner le produit.
Die in diesem Wartungshandbuch
enthaltenen
Spezifikationen
können
sich
Verbesserungen ändern.
de
vue
de
zwecks

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  Summary of Contents for Hitachi CML170SXW

  • Page 1 No. 0504 CML170SXW SERVICE MANUAL MANUEL D’ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read Data contained within this Service the “Safety Precautions” and “Product Safety Notices” in this service manual. manual is subject to alteration for improvement.
  • Page 2: Safety Precautions

    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: Picture Tube

    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

    1. ELECTRICAL REQUIREMENTS ........... 1 A. LCD Panel Specification .................. 1 B. Controls......................2 C. Power Management..................2 D. Display Modes for Inspections ................. 3 2. VL-701 DISPLAY CONTROL BOARD ........4 A. Description ....................... 4 B. Features ......................4 C.
  • Page 6 7. CIRCUIT DESCRIPTION ............. 14 A. Display- Controller.................... 14 B. Circuit of Plug and Play..................14 C. System Clock ....................14 D. Power Regularator ................... 14 8. INTRODUCTION ................15 A. Front Panel Controls and Led ................15 B. Rear Panel Connectors..................16 9.
  • Page 7: Electrical Requirements

    1. ELECTRICAL REQUIREMENTS A. LCD Panel Specification Display: 17 inch (17” viewable image size): active matrix: thin film transistor (TFT): liquid crystal display (LCD): 0.264 mm dot pitch: R.G.B. Vertical stripe 200 cd//m white luminance, typical: 200:1 contrast ratio, Min. Compatibility: 640 x 350: VGA-350 720 x 400: VGA text...
  • Page 8: Controls

    B. CONTROLS B-1 Control panel (monitor front panel) 1. Power LED 2. Adjust decrease. 3. Adjust increase. 4. Function select counter-clockwise. 5. Function select clockwise. 6. Power ON/OFF switch, push to ON and push to OFF. (toggle switch) 7. Ear phone jack. 8.
  • Page 9: Display Modes For Inspections

    D. Display Modes for Inspections D-1 Supported Timing FH(KH SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL TIMING FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH PORCH PORCH FOREQ.(MHZ) (DOT/LINE) (DOT/LINE) (DOT/LINE) 640x350 31.469 25.175 VGA-350 70.087 640x400 24.83 21.05 NEC PC9801 56.42 640x400 31.469 25.175 VGA-GRAPH...
  • Page 10: Vl-701 Display Control Board

    2. VL-701 DISPLAY CONTROL BOARD A. Description The VL-701 display control board is design to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor. B.
  • Page 11: Connector Locations

    D. Connector Locations E. Connector Type Location Type Maker Number of pins DZ11A91-L8 P1.524 FEMALE 85205-1200 ACES 85205-1400 ACES 85205-1000 ACES DF14A-25P P1.25 F. Connector pin assignment Pin NO. Signal Comment R-Video Red Video Input. G-Video Green Video Input. B-Video Blue Video Input.
  • Page 12 Terminal No. Symbol Function 5V POWER SUPPLY 5V POWER SUPPLY 5V POWER SUPPLY 5V POWER SUPPLY 5V POWER SUPPLY 5V POWER SUPPLY Ground Ground TXC- TMDS output data pairs TXC+ TMDS output data pairs Ground Ground TX0- TMDS output data pairs TX0+ TMDS output data pairs Ground...
  • Page 13: Vk-515 Control Panel

    Pin NO. Signal Comment MUTE Volume adjust power input LED-Y Power saving mode LED-G Monitor is ON KEY-UP Function select counter-clockwise key KEY-DOWN Function select counter-clockwise key KEY-R Adjust up key KEY-L Adjust down key KEY-POWER Power ON/OFF key 3. VK-515 Control Panel and Audio Board A.
  • Page 14: Connector Pin Assignment

    D. Connector pin Assignment D-1 J1 Pin NO. Signal Comment Audio Volume Adjust 2,5,8 OUTL - Left side audio signal OUTL + Left side audio signal OUTL - Right side audio signal OUTL + Right side audio signal D-2 J5 Pin NO.
  • Page 15 D-5 Switch definition Location Definition Power ON/OFF Function select by clockwise direction Function select by counter-clockwise direction Adjust up Adjust down D-6 LED definition Location Definition Green for ON mode; Dark for DC power off; Yellow for stand by; suspend; off mode.
  • Page 16: Vm-515 Power And Audio Board

    4. VM-515 POWER and AUDIO A. Major Specification Input voltage: 12V±5% from adapter (LSE 9901B1260) Inout current: 5A max. Output: ITEM Output Voltage Max Load. Min Load Tolerance Ripple & Noise(max) +5.1V 1.9A 0.19A ±5% 150mVpp B. Description The VM-515 is designed to supply the power to the VL-701 display control board. Under the control of VL-701, it can run into power saving mode so that saving the power of the whole monitor.
  • Page 17: Connector Type

    E. Connector type Location Type Maker Number of pins J801 DC-IN J802 B4B-XH-A 96113-0803 E&T SCJ-0345-1-X-S F. Connector pin Assignment J801 DC 12V Input Pin No Signal Comment Pin 1 +12V From adapter output cable Pin 2 From adapter output cable J802 FOR I/F CKT Pin No Signal...
  • Page 18: Pk07006700/Ambit T51I036.00 Inverter Board

    5. PK07006700/AMBIT T51I036.00 INVERTER BOARD A. Description The T51I036.00 Inverter board is designed for lighting up the back-lights of LCD module. B. Electrical characteristics (FOR SAMSUNG PANEL/LT170E2-131) MIN. TYP. MAX. COMMENT INPUT VOLTAGE 11.4V 12.6V 12V±5% Vin=12V MAX. BRIGHTNESS INPUT CURRENT -------- -------- Vbrite=0V...
  • Page 19: Connector Locations

    C. Connector locations D. Connector pin Assignment D-1 CN1(ACES, 85205-1200 12P) Pin NO. Signal Comment 1,2,3 +12V 5,6,10,11,12 GND BLT_ON Back-light ON/OFF control , high active(5V) +5VS +5VS BRITE BRITE Brightness (0-5V)control from I/F 0V for max. brightness D-2 CN2,CN3 (JST SM04(4.0)B-BHS-14P) Pin NO.
  • Page 20: Ac Adapter(Lse9901B1260)

    6. AC Adapter(LSE9901B1260) Quick specification review • Input voltage Single phase, 50/60HZ, 100VAC to 240VAC ±10% • Input current 1.5A (max), at 90VAC input and full load 0.75A (max), at 264 VAC input and full load. • Inrush current @ cold start 30A(0-peak)@ 110Vac ,50A(0-peak) @ 220Vac •...
  • Page 21: Introduction

    8. Introduction A. Front Panel Control and Led Front Panel Controls Item Control Function Power Switch Turns the monitor on and off. Power LED 1. Green indicates monitor is turns on. 2. Dark indicates DC power off. 3. Yellow indicates stand-by, suspend, off mode. Function Button Launches OSD function menu circully Plus Button...
  • Page 22: Rear Panel Connectors

    B. Rear Panel connector Input Signals Rear Panel Cable and Connector Item Cable / Connector Function Signal Connector Connectors the video cable Power Connector Connectors the adapter cable Audio connector Connector the audio cable...
  • Page 23: Troubleshooting

    9. TROUBLESHOOTING A. Main Procedure...
  • Page 24 A-1 Power Circuit Troubleshooting...
  • Page 25 A-2 Backlights Troubleshooting...
  • Page 26 A-3 Performance Troubleshooting...
  • Page 27 A-4 Function Troubleshooting...
  • Page 28: Schematic Circuits

    SCHEMATIC CIRCUITS...
  • Page 29 No. 0504 Control Board VL-701...
  • Page 30 No. 0504 Control Board VL-701...
  • Page 31 No. 0504 Control Board VL-701...
  • Page 32 No. 0504 Control Board VL-701...
  • Page 33 No. 0504 Control Board VL-701...
  • Page 34 No. 0504 Control Board VL-701...
  • Page 35 No. 0504 Control Board VL-701...
  • Page 36 No. 0504 Control Panel VK-515...
  • Page 37 No. 0504 Power & Audio Board VM-515...
  • Page 38 No. 0504 Power & Audio Board VM-515...
  • Page 39 No. 0504 Power & Audio Board VM-515...
  • Page 40 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 41 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...