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Hitachi CML154XW 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 Colour Monitor
November 2002
No. 0417
CML154XW
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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Summary of Contents for Hitachi CML154XW

  • Page 1 No. 0417 CML154XW 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

    1. 1. ELECTRICAL REQUIREMENTS ................2 A. LCD Panel Specification..........................2 B. CONTROLS .............................. 3 C. Power Management ..........................3 D. Display Modes FOR Inspections ....................... 5 2. ADJUSTMENT CONDITIONS..................6 A. Measuring Apparatuses Used ........................6 B. Input Signal..............................6 C.

  • Page 3: Electrical Requirements

    1. 1. ELECTRICAL REQUIREMENTS A. LCD Panel Specification Display: 15 inch (15” viewable image size): active matrix: thin film transistor (TFT): liquid crystal display (LCD): 0.297 mm dot pitch: R.G.B. Vertical stripe 200 cd//m white luminance, typical: 300:1 contrast ratio, typical Compatibility: 640 x 350: VGA-350 720 x 400: VGA text...

  • Page 4: Controls

    B. CONTROLS B-1 Control panel (monitor front panel) 1. Power LED, ( Please refer to C-2 LED definition table) 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) C.
  • Page 5 C-2 LED definition Table State On mode Green Stand-by Yellow Suspend Yellow Off mode Yellow power off Dark 1. Yellow(stand-by; suspend; off mode) disconnection 2. LED Dark (power off) C-3 Power Consumption Meet VESA DPMS Proposal On mode 25 Wmax Stand-by 5 Wmax Suspend...

  • Page 6: Display Modes For Inspections

    D. Display Modes FOR Inspections D-1 Supported Timing(for Not supported timing will go to power saving mode)T FH(KHZ) SYNC TOTAL ACTIVE SYNC FRONT BACK PIXEL TIMING FV(HZ) POLARITY (DOT/LINE) (DOT/LINE) WIDTH PORCH PORCH FOREQ. (DOT/LINE) (DOT/LINE) (DOT/LINE) (MHZ) 31.469 25.175 640x350 VGA-350 70.087...

  • Page 7: Adjustment Conditions

    2. ADJUSTMENT CONDITIONS A. Measuring Apparatuses Used Necessary measuring equipment that for the adjustment of LA-1221JMW’s MAIN PWB are following items. Adjusted Video Generator. Oscilloscope (more than 4 channels required) DC voltmeter B. Input Signal Input signal by using video signal generator with VGA Card port for this adjustment. C.

  • Page 8: Adjustment Of Boards

    4. ADJUSTMENT OF BOARDS Equipment is connected with boards to be inspected before adjustments. Refer to diagram below. A. Connection Method A-1 VL547 For AU Panel and W/O Audio. 1. R.G.B Signal Cable 2. DC Power Cable 3. LCD Lamp Cables 4.
  • Page 9 VL542 For Hannstar Panel W/I Audio 1. R.G.B Signal Cable 2. DC Power Cable 3. LCD Lamp Cables 4. Control Cable 5. Audio Cable 6. Speaker and Wire / Connector...

  • Page 10: Display Control Board

    5. DISPLAY CONTROL BOARD A. Description The VL-547 and VL-542 display control board is design to directly convert the R.G.B signals from VGA Card D-sub port to optimum LCD timing signals so as to construct a high display quality LCD monitor. B.

  • Page 11: Block Diagram (Control Ckt)

    C. Block Diagram (Control CKT) System Level Interface with Integrated Timing Controller ( VL-547 Diagram Hannstar Panel solution ) ( VL-542 Diagram – AU Panel solution)

  • Page 12: Connector Locations

    C-1 Sage Operation The s9050-100 is highly-integrated display processors. It has an ADC/PLL block and a microprocessor integrated on a single chip. The cost-effective s9050-100 is suitable for the XGA and the s9050 for the SXGA market segment with smaller memory requirements. Other features include a brand new high-end scaler, Active Color Management, a flexible OSD, Autoadjust, SureSync and independent monitoring of the analog interface.

  • Page 13: Connector Type

    E. Connector Type Location Type Maker Number of pins DZ11A91-L8 P1.524 FEMALE 96113-1003 E&T 96113-0703 E&T 98210-4011 E&T 98210-4011 E&T F. Connector pin assignment F-1 CN1 Pin NO. Signal Vertical Sync Horizontal Sync Blue Video Ground Blue Video Green Video Ground Green Video Red Video Ground Red Video...
  • Page 14 ( VL-547 Control Board for AU Panel )
  • Page 15 ( VL-542 Control Board for Hannstar Panel )
  • Page 16 F-3 J2 Pin NO. Signal Comment NONE 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 F-4 J3 Pin NO. Signal Comment VL547 / VL-542 power input...

  • Page 17: Vk-546 Control Panel Board

    6. VK-546 Control Panel Board A. Description The VK-546 is designed to offer an user interfaced control panel which passes and receives signals to and from power board . B. Connector and Switch Locations C. Connector type Location Type Maker Number of pins 96113-1113 E&T...

  • Page 18: Connector Pin Assignment

    D. Connector pin Assignment D-1 J1 (Audio Function Only) Pin NO. Signal Comment MUTE1 Audio Mute RIN1 Audio volume adjust line IN R LIN1 Audio volume adjust line IN L RIN2 Audio volume adjust line OUT R LIN2 Audio volume adjust line OUT L R-EAR EAR Phone out R L-EAR...
  • Page 19 KEY-UP Function select up KEY-DOWN Function select down KEY-R Function select right KEY-L Function select left KEY-PWR Power ON/OFF signal D-5 VR1 (Audio Function Only) Volume control , clockwise for increasing ; counter-clockwise for decreasing D-6 Switch definition Location Definition Function select by clockwise direction Adjust down Adjust up...

  • Page 20: Power Board

    7. POWER BOARD A. Description There are three kind of circuits in this power board-AC/AC, inverter and audio B. Electrical characteristics B-1 FOR HANNSTAR PANEL MIN. TYP. MAX. COMMENT INPUT VOLTAGE 11.4V 13.8V Vin=12V MAX. INPUT CURRENT -------- 1.2A BRIGHTNESS BACKLIGHT VOLTAGE 684Vrms 760V rms.

  • Page 21: Connector Locations

    C. Connector locations PK100007500 PK100007510 CON1 CON2 CON3 J802 INLET C-1 Connector type Location Type Maker Number of pins CON1 SM02(8.0)B-BHS-1 CON2 SM02(8.0)B-BHS-1 J802 CON3 96113-00703 E&T C-2 Connector pin assisnment C.2.1 CON1 & CON2 Pin NO Signal Comment Hish Voltape Common C.2.2 CON3 Pin NO...

  • Page 22: Circuit Descrption

    8. CIRCUIT DESCRPTION A. Micro-Controller Circuit The U5 (for VL-547 ) or U3 ( for VL-542 ) (s9050-100) is a system controller. The Y1 is 14.318MHz XTAL. B. Circuit of Plug and Play Plug and play allows the serial communication of host PC and peripherals offering minimal configurations to end users.

  • Page 23: Introduction

    9. INTRODUCTION A. Front Panel Control and Led JS558(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 24 JS555(With Audio) Front Panel Controls Item Control Function PC Audio Stereo output. Stereo Speakers Increase Volume - Turn knob clockwise. Speaker Volume Control Decrease Volume - Turn knob counter clockwise Press the power switch to switch the monitor DC Power Switch ON/OFF.

  • Page 25: Rear Panel Connector Input Signals

    B. 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 Connect the audio port (JS555 Only)

  • Page 26: Troubleshooting

    10. TROUBLESHOOTING A. Main Procedure...
  • Page 27 A-1 Power Circuit Troubleshooting...
  • Page 28 A-2 Backlights Troubleshooting...
  • Page 29 A-3 Performance Troubleshooting...
  • Page 30 A-4 Function Troubleshooting...

  • Page 31: Appendix A: Schematic Diagrams

    ACES_87502_0200 STRAIGHT/2.5 LOUT Audio Board ROUT L_EAR Connector R_EAR SCJ-0348-C ACES_87502_0200 LIN_2 STRAIGHT/2.5 RIN_2 LIN_1 LIN_1 MUTE E&T_96113_1113 1,1' Main Board MUTE LED_Y Connector LED_G 3 3 ' 2 ' 2 KEY_UP KEY_DOWN KEY_R KEY_L KEY_PWR E&T_96113_1013 LYG2093 YEL/GRN PT-002-82 PT-002-82 PT-002-82 PT-002-82...
  • Page 32 PC_R RIN_P VSYNC_IN 2.2p# HSYNC_IN BGNDA PC_B RGNDA RIN_N GGNDA PC_G RGNDA PC_G GIN_P PC_R GND_POWER SCL_for_DDC SDA_for_DDC CABLE_Dect 2.2p# 5V_DDC A3.3V 3.3VCC GGNDA GIN_N E&T-4500-13 PC_B BIN_P 2.2p# BGNDA BIN_N ESD PROTECTION 0.1u# A3.3V 5VCC PC_R PC_G 5V_DDC 5VCC 0.1u CABLE PC_B...
  • Page 33 RST# KEY-R KEY-DOWN KEY-UP KEY-L DDC_SCL DDC_SDA AHSYNC AVSYNC 2.5VCC VDD_D_CORE1 VSS_D_CORE1 3.3VCC 0.1u VDD_D_CORE2 VSS_D_CORE2 0.1u VDD_D_CORE3 VSS_D_CORE3 0.1u VDD_D_CORE4 VSS_D_CORE4 0.1u PD47 MCOP1 VDD_D_CORE5 VSS_D_CORE5 MCOP2 PD46 0.1u XTALIN PD45 VDD_D_CORE6 VSS_D_CORE6 14.318MHz A2.5V XTALOUT PD44 0.1u VDD_A_PLL VDD_A_PLL PD43 VDD_D_CORE7...
  • Page 34 5VCC 5VCC 0.1u 5VCC DEBUG PORT MCAD[16..17] MCAD16 10K# MCA16 10K# MCAD17 MCA17 0.1u# LED-Y LED-G KEY-UP HEADER 4# KEY-DOWN MCALE KEY-R KEY-L 75HCT373 KEY-POWER 5VCC E&T_96113-1003 0.1u 0.1u 0.1u 0.1u 0.Iu 0.1u MCA[0..7] 5VCC MCAD0 MCA0 0.1u MCAD1 MCA1 RST# 5VCC MCAD2...
  • Page 35 APL1117-3.3 3.3VCC 5VCC 22u/50V 100u/16V 0.1u 0.1u 0.1u 2 Vout AIC1084CE-3.3 APL1117-3.3 3.3VLCD SOT-223 220u/16V 0.1u 0.1u Vout 100u/16V 0.1u 2 Vout AIC1084CE-3.3 TO-252 APL1117-2.5 Vout 2.5VCC 2 Vout 100u/16V 0.1u 22u/50V 0.1u APL1117-2.5 SOT-223 Vout APL1117-2.5 A2.6V 100u/16V 0.1u 22u/50V 0.1u No.
  • Page 36 VDD+9V VDD+9V RP1 22 PD35 PD34 PD33 PD32 RP2 22 PD31 ICPH CPH1 PD30 PD29 PD28 RP3 22 PD27 PD26 PD25 PD24 RP4 22 PD23 PD22 CPH2 CPH1 CPH1 PD21 PD20 RP5 22 LOAD LOAD PD19 PD18 PD17 PD16 STV1 STV1 RP6 22 STV2...

  • Page 37: Appendix B: Display Unit Assembly

    POWER/INVERTER BOARD MAIN BOARD (VL-542) KEY BOARD (VK-546)

  • Page 38: Appendix C: Part Lists

    THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA...
  • Page 39 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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