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Sony SDM-HS74P Service Manual

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COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : CL-42
FACTORY MODEL: LHS74P, LHS74PM
MODEL: SDM-HS74, SDM-HS74P
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

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Summary of Contents for Sony SDM-HS74P

  • Page 1 COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-42 FACTORY MODEL: LHS74P, LHS74PM MODEL: SDM-HS74, SDM-HS74P CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 DESCRIPTION OF BLOCK DIAGRAM.....8 PRECAUTIONS ............3 ADJUSTMENT ............10 TIMING CHART ............4 TROUBLESHOOTING GUIDE ......11 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW...........17 WIRING DIAGRAM ..........6 REPLACEMENT PARTS LIST .......19 BLOCK DIAGRAM ........... 7 SCHEMATIC DIAGRAM ......... 22 SPECIFICATIONS 1.

  • Page 3: Signal Connector Pin Assignment

    Signal Connector Pin Assignment • DVI-D Connector Signal (DVI-D) Signal (DVI-D) T. M. D. S. Data2- Hot Plug Detect T. M. D. S. Data2+ T. M. D. S. Data0- T. M. D. S. Data2/4 Shield T. M. D. S. Data0+ T.

  • Page 4: Precautions

    PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. WARNING BE CAREFUL ELECTRIC SHOCK ! • There are some special components used in LCD monitor that are important for safety. These parts are • If you want to replace with the new backlight (CCFL) or marked on the schematic diagram and the inverter circuit, must disconnect the AC adapter...

  • Page 5: Timing Chart

    TIMING CHART << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Total Period Video Active Time Front Porch Back Porch Blanking time Sync Sync Duration Mode Resolution Frequency Polarity Clock Sort – 31.500 720x400 28.350...

  • Page 6: Operating Instructions

    TIMING CHART VIDEO SYNC OPERATING INSTRUCTIONS FRONT / REAR VIEW (Power) switch and indicator To turn the display on or off, press the (power) switch upward. The power indicator lights up in green when the display is turned on, and lights up in orange when the monitor is in power saving mode.

  • Page 7: Wiring Diagram

    WIRING DIAGRAM Connector Ass’y P/N: 6631T11016W Connector Ass’y P/N: 6631T20023L - 7 -...

  • Page 8: Block Diagram

    BLOCK DIAGRAM - 8 -...

  • Page 9: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Video Controller Part & Display Data Transmitter Part. This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock. The pixel clock for each mode is generated by the PLL.

  • Page 10: Lips Board Block Diagram

    LIPS Board Block Diagram 50 ~ 60Hz 100KHz HVDC INPUT RECTIFIER ENERGY OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFER AND FILTER LINE 100 ~ 240V SIGNAL PHOTO- COLLECTI CONTROL COUPLER CIRCUIT ISOLATION PRIMARY SECONDARY Operation description_LIPS 1. EMI components. This part contains of EMI components to comply with global marketing EMI standards like FCC, VCCI CISPR, the circuit included a line-filter, across line capacitor and of course the primary protection fuse.

  • Page 11: Adjustment

    ADJUSTMENT Windows EDID V1.0 User Manual 2. EDID Read & Write 1) Run WinEDID.exe Operating System: MS Windows 98, 2000, XP Port Setup: Windows 98 => Doesn’t need setup Windows 2000, XP => Need to Port Setup. This program is available for LCD Monitor only. 1.

  • Page 12: Service Osd

    SERVICE OSD 1) Turn off the power switch button. 2) Press DOWN, POWER key. 3) Shows the service OSD menu. That menu is located in down side of main menu. 4) The service OSD menu contains additional menus as described below. a) COLOR TEMP : Adjust R/G/B color values of contrast and brightness in 9300K, 6500K, user color mode.

  • Page 13: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER CHECK J705 BOARD, AND FIND VOLTAGE OUT A SHORT POINT PIN 5, 6, 8(5V) AS OPENING PIN 1, 2(12V)? EACH POWER LINE CHECK CHECK 5VS LINE U501 PIN 8 Voltage (OPEN CHECK) (5V) ? NO PROBLEM...
  • Page 14 2. NO RASTER NO RASTER (OSD IS NOT DISPLAYED) CHECK J705 PIN 5, 6, 8(5V) CHECK LIPS PIN 1, 2(12V)? CHECK MICOM INV CHECK ON/OFF PORT. J705 PIN 9 1. CONFIRM BRIGHTNESS CHECK OSD CONTRL STATE. J705 PIN 10 2. CHECK MICOM DIM-ADJ PORT CHECK PULSE AS...
  • Page 15 3. NO RASTER (OSD IS NOT DISPLAYED) – MST9131B NO RASTER (OSD IS NOT DISPLAYED) U201 CHECK U803 POWER PIN 72, (2.5V REGULATOR), 82, 94(3.3V) CHECK U804 PIN 64, 85 (2.5V)? (3.3V REGULATOR) 1. CHECK PIN11, 12 U501 SOLDERING CONDITION PIN11, 12 OSCILLATE AS 2.
  • Page 16 4. TROUBLE IN DPM TROUBLE IN DPM CHECK R734, R741 CHECK PC (INPUT-1)SYNC. PC IS NOT GOING R732, R755 INTO DPM OFF MODE (INPUT-2)SYNC. CHECK TROUBLE IN U501 PIN 24 SIGNAL CABLE (0V) ? TROUBLE IN PC - 16 -...
  • Page 17 - 17 -...

  • Page 18: Exploded View Parts List

    LCD(LIQUID CRYSTAL DISPLAY), M170E5-L05 CHIMEI TFT COLOR 300NITS 16MS TCO-03 TN SXGA - Europe-SDM-HS74 6304FAU012A LCD(LIQUID CRYSTAL DISPLAY), M170EN05V5 AU TFT COLOR SXGA 250NIT GEN5-Europe, U.S.A/CANADA-SDM-HS74 6304FAU010B LCD(LIQUID CRYSTAL DISPLAY), M170EN06-V2(AR COATING), AU TFT COLOR LVDS SXGA 16MS - SDM-HS74P 3809TKL085C BACK COVER ASSEMBLY, HS74 3808TKL084A BLACK-SDM-HS74P, U.S.A/CANADA-SDM-HS74 3809TKL085B...

  • Page 19: Replacement Parts List

    REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2004. 06. 02. DATE: 2004. 06. 02. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 20 DATE: 2004. 06. 02. DATE: 2004. 06. 02. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ZD501 0DZ560009GB BZT52C5V6S DIODES R/TP SOD323 R508 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP ZD502 0DZ560009GB BZT52C5V6S DIODES R/TP SOD323...
  • Page 21 DATE: 2004. 06. 02. DATE: 2004. 06. 02. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R729 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP R730 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP 0RD1501Q609 1.50K 1/4W(3 5% TA52 R731...

  • Page 22: Schematic Diagram

    SCHEMATIC DIAGRAM 1. MST9131B - 22 -...
  • Page 23 2. MICOM - 23 -...
  • Page 24 3. POWER - 24 -...
  • Page 25 4. CONNECTOR & JACKS - 25 -...
  • Page 26 Jun. 2004 P/NO : 3828TSO059S Printed in Korea...

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