1. Manuals
  2. Brands
  3. Hitachi Manuals
  4. Monitor
  5. CML156XW
  6. Service manual

Hitachi CML156XW Service Manual

Hide thumbs Also See for CML156XW:
Table of Contents

Quick Links

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 Colour Monitor
November 2003
No. 0421
CML156XW
«MODEL NAMES»
CML158XW
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.
Service
Table of Contents
loading

Related Manuals for Hitachi CML156XW

Summary of Contents for Hitachi CML156XW

  • Page 1 No. 0421 CML156XW «MODEL NAMES» CML158XW 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: Table Of Contents

    Connector type ..........................16 Connector pin Assignment ........................ 17 Switch definition..........................18 LED definition ............................ 18 Variable resistor..........................18 5. VK-570 CONTROL PANEL (CML156XW) Description............................19 Connector pin Assignment ........................ 19 Switch definition..........................19 LED definition ............................ 19 6. VP-570 POWER BOARD Description............................

  • Page 4: Electrical Requirements

    1. ELECTRICAL REQUIREMENTS 1.1 LCD Panel Specification 1.1.1 LCD Panel Model (HSD150SX84-C) • Display Type Active matrix colour TFT LCD • Resolution 1024 x 768 pixels • Display Dot 1024 x (RGB) x 768 • Display Area 304.1mm (H) x 228.1mm (V) •...
  • Page 5 1.1.2 Optical Characteristics Measuring Condition Measuring surroundings : dark room ■ : (6.0) ±0.1mA, Lamp freq. F Lamp current I =50KHz ■ =3.3V, fv =60Hz, f =32.5MHz ■ DCLK Surrounding temperature : 25 ±2°C ■ 30min. Warm-up time. ■ Measuring Equipment LCD-7000 (Otsuka Electric Corp.) utilises MCPD-7000 for Chromaticity and BM-5A for ■...
  • Page 6 Note (1) Definition of Viewing Angle: Note (2) Definition of Contrast Ratio (CR): Measured at the centre point of panel Luminance with all pixels white (L63) CR = ——————————————— Luminance with all pixels white (L0)
  • Page 7 Note (3) Definition of Response Time: Sum of T and T Note (4) Optical Characteristic Measurement Setup...
  • Page 8 Note (5) Definition of Brightness Uniformity...

  • Page 9: Input Signals

    1.2 Input Signals 1.2.1 Video Input • Type Analog RGB. • 75 ohm ± 2% Input Impedance • Polarity Positive • 0 - 0.7 ± 0.05 Vp-p Amplitude • Display Colour same as LCD panel 1.2.2 Sync Input • Signal separate horizontal and vertical sync.

  • Page 10: Supported Timing

    1.3 Supported Timing TIMING FH(KHZ) SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH PORCH PORCH FREQUENCY (DOT/LINE) (DOT/LINE) (DOT/LINE) (MHZ) 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 11: Power Management

    1.4 Power Management 1. Meets VESA DPMS Proposal 2. Power Consumption Meets VESA DPMS Proposal On mode 30 Wmax Green Stand-by 3 Wmax Amber Suspend 3 Wmax Amber Off mode 3 Wmax Amber DC power off 3 Wmax Dark Amber (stand-by; suspend; off-mode) disconnection 3 Wmax Dark (DC power off)

  • Page 12: Adjustment Of Power Supply

    2. ADJUSTMENT of Power Supply Input voltage AC 100 ~ 240Vac Rated input voltage AC 90 ~ 264Vac Frequency 50 / 60 Hz Rated frequency 47 ~ 63 Hz DC output Out voltage +12V Maximum output current +1.5A +1.5A Minimum output current +0.1A Range of voltage Regulation +25%~-5%...

  • Page 13: Vl-563 Display Control Board

    3. VL-563 DISPLAY CONTROL BOARD 3.1 Description The VL-563 display control board is designed 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. 3.2 Features •...

  • Page 14: Block Diagram

    3.3 BLOCK DIAGRAM 3.3.1 System Block Diagram 3.4 Connector Locations...

  • Page 15: Connector Type

    3.5 Connector Type Location Number of pins CN4,CN5 3.6 Connector Pin Assignment 3.6.1 CN1 Pin NO. Signal Comment Vertical Sync Input. Horizontal Sync Input. Ground Ground. B-Video Blue Video Input. Ground Ground. G-Video Green Video Input. Ground Ground R-Video Red Video Input. Ground Ground.
  • Page 16 3.6.2 CN4/CN5 CONNECTION ASSIGNMENT Interface Connector (40-pins (JAE:FH1B040H52) I/F FRC Connector (J1) I/F FRC Connector (J2) Symbol Description Pin. Symbol Description No Connecting Digital Power Input (DC+3.3V) No Connecting Digital Power Input (DC+3.3V) Ground Ground Ground Ground Even-dot Blue Data bit 5 (MSB) Odd-dot Blue Data bit 5 (MSB) Even-dot Blue Data bit 4 Odd-dot Blue Data bit 4...
  • Page 17 3.6.3 CN6 Pin No. Signal Comment VCC(5V) Power Input VCC(5V) Power Input BLON Bright Light ON/OFF BRIGHTNESS Brightness Adjustment 3.6.4 CN2 Pin NO. Signal Comment KEY-R Function select clockwise key LED-OR Power saving mode LED-GRN Monitor is ON POWER Power ON/OFF key Function select anti-clockwise key KEY-L KEY-UP...

  • Page 18: Description

    4. VK-580 Control Panel and Audio Board (CML158XW) 4.1 Description The VK-580 is designed to offer an user interfaced control panel which passes and receives signals to and from VL-563 display control board. Also there is a stereo audio amplifier to drive a pair of speakers.

  • Page 19: Connector Pin Assignment

    4.4 Connector Pin Assignment 4.4.1 J1 Pin NO. Comment Audio out L+ Audio out L- Audio out R- Audio out R+ Audio volume adjust VDD for audio volume adjust EAR phone out L EAR phone out R EAR phone Detector 4.4.2 J5 Pin NO.

  • Page 20: Switch Definition

    4.5 Switch Definition Location Definition Power ON/OFF Function select by clockwise direction Function select by anti-clockwise direction Adjust up Adjust down 4.6 LED Definition Location Definition Green for ON mode; Amber for power saving. 4.7 Variable Resistor VR1: Volume control: clockwise for increasing, anti-clockwise for decreasing...

  • Page 21: Vk-570 Control Panel (Cml156Xw)

    5. VK-570 Control Panel (CML156XW) 5.1 Description The VK-570 is designed to offer an user interfaced control panel which passes and receives signals to and from VL-563 display control board. When in power saving mode the audio circuit can be turned off by the control signal from VL-563 board.

  • Page 22: Vp-570 Power Board

    6. VP-570 POWER Board 6.1 Description This specification defines the performance and characteristic for the VP-570 power board. It supplies the following items : 1) A constant 5V output source for logic board. 2) A constant 5V output source for audio power source. 2) A constant 12V output source for inverter power source.

  • Page 23: Electrical Specification

    6.4 Electrical Specification: 6.4.1 AC-DC Electrical Specification 6.4.1 Input Specification Item Condition Min. Typ. Max. Unit ----- Input Voltage Input Frequency ----- Input Current 100Vac @ Type load 1.5A Arms Cold Start @ Vin=100Vrms Inrush Current Cold Start @ Vin=220Vrms @ full load &...
  • Page 24 1)SCP: Short circuit protection must act on both outputs 2)OPP: Should be protected when output power consumption is within 40W ~ 70W 3)OCP: Min. Max. Test condition +5Vdc(for logic) +12V @1.5A +5V(for logic) @1.5A +12Vdc 1.8A Inverter Electrical Specification: 6.4.2 For Hannstar HSD150SX84-B Condition Min.

  • Page 25: Isolation Check

    Connector & Pin Assignment: 6.4.3 Output Connector: J801 (for main board ) : Pin No. Symbol Description +5Vdc for main board Common Ground Backlight ON/OFF control, low active Vbri Brightness adjustable range 0~3.3V ----- Vaudio +5Vdc for audio power Audio ground J901 &...

  • Page 26: Environmental

    6.6 Environmental The PS shall be capable of withstanding the following 6.6.1 Temperature Range Operating to +40 degC Storage to +85 degC 6.6.2 Humidity Operating to 95% RH Storage to 95% RH 6.6.3 Altitude Operating to 10,000 feet Non-Operating to 25,000 feet 6.6.4 Vibration Operating 1.0mm, 10-25Hz...

  • Page 27: Introduction

    7. INTRODUCTION 7.1 Front Panel Control and LED CML158XW (With Audio) Figure 2-1 Front Panel Controls Item Control Function PC Audio Stereo output. Stereo Speakers Speaker Volume Increase Volume - Turn knob clockwise. Control Decrease Volume - Turn knob anti-clockwise Press the power switch to switch the monitor DC Power Switch ON/OFF.
  • Page 28 CML156XW (Without Audio) Front Panel Controls Item Control Function Press the power switch to switch the monitor DC Power Switch ON/OFF. LED lights Green color --- Power is ON. LED lights Yellow --- Monitor is in "Power DC Power-On Indicator Saving Mode".

  • Page 29: Rear Panel Connector Input Signals

    7.2 Rear Panel Connector Input Signals Rear Panel Cable and Connector Item Cable / Connector Function Signal Cable Connect the video port 2 AC IN Power Connect Connect the AC power cord Audio connector (CML158XW Connect the audio port Only)

  • Page 30: Troubleshooting

    8. TROUBLESHOOTING 8.1 Main Procedure...
  • Page 31 8.1.1 Power Circuit Troubleshooting...
  • Page 32 8.1.2 Backlights Troubleshooting...
  • Page 33 8.1.3 Performance Troubleshooting...
  • Page 34 8.1.4 Function Troubleshooting...

  • Page 35: Appendix A: Display Unit Assembly

    APPENDIX A DISPLAY UNIT ASSEMBLY DIAGRAMS CML158XW CML156XW...
  • Page 36 CML158XW Display Unit Assembly...
  • Page 37 CML156XW Display Unit Assembly...
  • Page 38 THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 39 Fax: 93 491 3513 Fax: +49- 89-991 80-224 Email: [email protected] Hotline: +49-180-551 25 51 (12ct/min) Email: HSE- [email protected] HITACHI EUROPE srl HITACHI HOME ELECTRONICS (NORDIC) AB Via Tommaso Gulli N.39, 20147 Box 77 S-164 94 Kista Milano, Italia SWEDEN ITALY...

This manual is also suitable for:

Cml158xw

Table of Contents