Hitachi CML181SXW, Service Manual

Page 1: ...es hat der Service Ingenieur die Sicherheitshinweise und Hinweise zur Produktsicherheit in diesem Wartungshandbuch zu lesen SERVICE MANUAL 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 de modifications en vue de perfectionner le produit Die in diesem Wartungshandbuch enthaltenen Spezi...

Page 2: ...ent 10 3 VC 702 LVDS SIGNAL TRANSFER BOARD 13 A Description 13 B Connector Locations 13 C Connector Type 13 D Connector pin assignment 13 4 VK 517 CONTROL PANEL AND AUDIO BOARD 14 A Description 14 B Connector and Switch Locations 14 C Connector type 14 D Connector pin Assignment 14 5 VM 517 POWER AND AUDIO 17 A Major Specification 17 B Description 17 C Efficiency 17 D Connector Locations 17 E Conn...

Page 3: ...Regulator 19 8 INTRODUCTION 20 A Front Panel Control and Led 20 B Rear Panel connector Input Signals 21 9 TROUBLESHOOTING 22 A Main Procedure 22 B Power Circuit Troubleshooting 23 C Backlights Troubleshooting 24 D Performance Troubleshooting 25 E Function Troubleshooting 26 APPENDIX A DISPLAY UNIT ASSEMBLY 27 APPENDIX B PCB ASSEMBLY 30 ...

Page 4: ... For continued protection against Low Radiation replace only with same part number 2 This symbol warns the personnel that un insulated voltage within the unit may have sufficient magnitude to cause electric shock Therefore it should be read carefully in order to avoid any problems ...

Page 5: ... non interlaced 60Hz to 75 Hz vertical refresh rate 1280 x 1024 non interlaced 60Hz to 75 Hz vertical refresh rate Synchronization Frequencies Horizontal 24 kHz to 80 kHz Vertical 56 Hz to 75 Hz Pixel Frequency 25 Mhz 135 Mhz Resolution Horizontal 1280 dots Vertical 1024 lines Active Display Area Horizontal 359 0 mm Vertical 287 2 mm Viewing Angles Up 80deg down 80deg TYP Left 80deg Right 80deg TY...

Page 6: ...ume Control C Power Management C 1 Power Management 1 Meet VESA DPMS proposal 2 Power Consumption Meet VESA DPMS Proposal On mode 54 Wmax Green Stand by 5 Wmax Yellow Suspend 5 Wmax Yellow Off mode 5 Wmax Yellow DC power off 5 Wmax Dark disconnection 5 Wmax Dark DC power off Yellow DC power on u Power saving states are measured with speakers attached but not worked u The recovery time from stand b...

Page 7: ...MS Proposal On mode 54 Wmax Stand by 5 Wmax Suspend 5 Wmax Off mode 5 Wmax DC power off 5 Wmax disconnection 5 Wmax 1 Measured from AC input end of AC power adapter 2 Power saving states are measured with speakers attached but not worked ...

Page 8: ...67 624 3 1 39 800x600 35 156 1024 800 72 24 128 36 SVGA 56 25 625 600 2 1 22 800x600 37 879 1056 800 128 40 88 40 VESA 600 60Hz 60 317 628 600 4 1 23 800x600 48 077 1040 800 120 56 64 50 VESA 600 72Hz 72 188 666 600 6 37 23 800x600 46 875 1056 800 80 16 160 49 5 VESA 600 75Hz 75 625 600 3 1 21 1024x768 48 363 1344 1024 136 24 160 65 XGA 60 004 806 768 6 3 29 1024x768 53 964 1328 1024 176 16 112 71...

Page 9: ...y timings and control user functions Using Pixelworks design to generate optimum LCD timings Using E2PROM to memorize every adjusted parameter support up to 22 display modes from VGA to SXGA Offer full screen expansion function on non SXGA mode automatic flexible color temperature selection function including 9300 6500 and user mode Support OSD functions Support VESA DPMS function Support DDC1 2B ...

Page 10: ...4 96118 0413 E T 4 CN5 98210 3011 E T 30 F Connector pin assignment F 1 CN2 Pin NO Signal Comment 1 R Video Red Video Input 2 G Video Green Video Input 3 B Video Blue Video Input 4 N C 5 PCDETECT PCDETECT Input 6 Ground Ground 7 Ground Ground 8 Ground Ground 9 5VCC DDC Power Input 10 Ground Ground 11 NC 12 SDA DDC 1 2B 13 HS Horizontal Sync Input 14 VS Vertical Sync Input 15 SCL DDC 2B ...

Page 11: ...K LVDS ODD OUTPUT DATA PAIRS 21 TXOCLK LVDS ODD OUTPUT DATA PAIRS 22 TXO3 LVDS ODD OUTPUT DATA PAIRS 23 TXO3 LVDS ODD OUTPUT DATA PAIRS 7 14 17 24 GND Ground 25 26 27 GND Ground F 3 CN1 Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment 1 T M D S Data2 9 T M D S Data1 17 T M D S Data0 2 T M D S Data2 10 T M D S Data1 18 T M D S Data0 3 T M D S Data2 4 Shield 11 T M D S Data1 3 Shiel...

Page 12: ...ND F 6 CN7 Pin NO Signal Comment 1 MUTE Volume ON OFF control 2 LED Y Power saving mode 3 LED G Monitor is ON 4 GND GND 5 KEY UP Function select counter clockwise key 6 KEY DOWN Function select counter clockwise key 7 KEY R Adjust up key 8 KEY L Adjust down key 9 KEY POWER Power ON OFF key 10 GND GND ...

Page 13: ...3 4 TXE1 LVDS EVEN OUTPUT DATA PAIRS 4 5 TXE2 LVDS EVEN OUTPUT DATA PAIRS 5 6 TXE2 LVDS EVEN OUTPUT DATA PAIRS 6 8 TXECLK LVDS EVEN OUTPUT DATA PAIRS 8 9 TXECLK LVDS EVEN OUTPUT DATA PAIRS 9 10 TXE3 LVDS EVEN OUTPUT DATA PAIRS 10 11 TXE3 LVDS EVEN OUTPUT DATA PAIRS 11 12 TXO0 LVDS ODD OUTPUT DATA PAIRS 12 13 TXO0 LVDS ODD OUTPUT DATA PAIRS 13 15 TXO1 LVDS ODD OUTPUT DATA PAIRS 15 16 TXO1 LVDS ODD ...

Page 14: ...al from VL 706 board B Connector and Switch Locations C Connector type Location Type Maker Number of pins J1 96113 1113 E T 11 J2 SCJ 0348 C SC 9 J3 87502 0200 ACES 2 J4 87502 0200 ACES 2 J5 96113 1013 E T 10 D Connector pin Assignment D 1 J1 Pin NO Signal Comment 1 VOL Volume ON OFF control 2 GND GND 3 RIN1 Audio volume adjust line INR 4 LIN1 Audio volume adjust line INL 5 RIN2 Audio volume adjus...

Page 15: ...n to VL 706 7 KEY R Function select right to VL 706 8 KEY L Function select left to VL 706 9 KEY PWR Power ON OFF signal to VL 706 D 3 J3 and J4 Pin NO Signal Comment 1 GND GND 2 OUTL OUTR Speaker out D 4 J2 Pin NO Signal I O Comment 1 GND Ground 2 LI 2 Earphone out L 3 RI 2 Earphone out R 4 LI 1 Earphone out L 5 LO Speaker out L 6 NC No connector 7 RI 1 Earphone out R 8 RO Speaker out R ...

Page 16: ...clockwise for decreasing D 8 Electrical characteristics Tamb 25 Audio amplifier Use Panasonic VP 7723A Audio Analyzor Item Audio Input Freq Spec Comment Min Typ Max Input Voltage V 11 4 12 12 6 Input Current mA 500 800 Audio Voltage Gain 500mVrms 1KHz 14dB Volume Max load 8 Ω Frequency Response 100mVrms 50Hz 20KHz 3dB 3dB Volume Max load 8 Ω Signaal to Noise ratio 500mVrms 1KHz 70dB Volume Max loa...

Page 17: ...0 19A 5 150mVpp B Description The VM 517 is designed to supply the power to the VL 706 display control board Under the control of VL 706 it can run into power saving mode so that saving the power of the whole monitor C Efficiency 80 min at Maximum Load D Connector Locations E Connector type Location Type Maker Number of pins J801 DC IN SC 2 J3 SCJ 0345 1 X S SC 3 J2 96113 1103 E T 11 J802 B4B XH A...

Page 18: ... input Pin No Signal Comment Pin 1 GND GND Pin 2 Audio IN 1 From Audio output 1 Pin 3 Audio IN 2 From Audio output 2 F 4 J2 TO Speaker CKT Pin No Signal Comment Pin 1 VOL Volume ON OFF control Pin 2 GND GND Pin 3 RIN1 Audio volume adjust line INR Pin 4 LIN1 Audio volume adjust line INL Pin 5 RIN2 Audio volume adjust line OUTR Pin 6 LIN2 Audio volume adjust line OUTL Pin 7 GND Pin 8 R EAR EAR phone...

Page 19: ...ESCRPTION A Display Controller The U8 is image processor The functions of the CHIP support as below 1 Hight quality image scalar 2 On Chip 16 bit Microprocessor 3 On screen display 4 Automatic image optimizer B Circuit of Plug and Play Plug and play allows the serial communication of host PC and peripherals offering minimal configurations to end users This monitor supports DDC2B communication prot...

Page 20: ... Turns the monitor on and off 2 Power LED 1 Green indicates monitor is turns on 2 Dark indicates DC power off 3 Yellow indicates stand by suspend off mode 3 4 Function Button Launches OSD function menu circully 5 Plus Button Selects and adjusts the functions 6 Minus Button Selects and adjusts the functions ...

Page 21: ...nnector Input Signals Rear Panel Cable and Connector Item Cable Connector Function 1 Signal Connector Connectors the video cable 2 Power Connector Connectors the adapter cable 3 Audio connector Connector the audio cable ...

Page 22: ...18 9 TROUBLESHOOTING A Main Procedure ...

Page 23: ...19 B Power Circuit Troubleshooting ...

Page 24: ...20 C Backlights Troubleshooting ...

Page 25: ...21 D Performance Troubleshooting ...

Page 26: ...22 E Function Troubleshooting ...

Page 27: ...APPENDIX A Display Unit Assembly ...

Page 28: ...No 0413 Assembly Drawing of Screen ...

Page 29: ...No 0413 Assembly Drawing of Base ...

Page 30: ...APPENDIX B PCB ASSEMBLY ...

Page 31: ...No 0413 VL 706 VGA Input ...

Page 32: ...No 0413 VL 706 ADC ...

Page 33: ...No 0413 VL 706 TMDS ...

Page 34: ...No 0413 Scaler and MCU ...

Page 35: ...No 0413 VL 706 Flash ROM ...

Page 36: ...No 0413 VL 706 MSIC ...

Page 37: ...No 0413 VL 706 Power ...

Page 38: ...No 0413 VL 706 LVDS ...

Page 39: ...No 0413 VL 706 Keypad ...

Page 40: ...No 0413 VM 517 Audio Board 1 ...

Page 41: ...No 0413 VM 517 Audio Board 2 ...

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Page 43: ...THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA ...

Page 44: ... ITALY Tel 39 02 487861 Tel 39 02 38073415 Servizio Clienti Fax 39 02 48786381 2 Email customerservice italy hitachi eu com HITACHI Europe AB Box 77 S 164 94 Kista SWEDEN Tel 46 0 8 562 711 00 Fax 46 0 8 562 711 13 Email csgswe hitachi eu com HITACHI EUROPE S A S Lyon Office B P 45 69671 BRON CEDEX FRANCE Tel 04 72 14 29 70 Fax 04 72 14 29 99 Email france consommateur hitachi eu com HITACHI EUROPE...