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IBM L180p Service Manual

Color monitor chassis no. : cl-42
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MODEL: L180p(9180-HB9)

COLOR MONITOR

SERVICE MANUAL

Chassis No. : CL-42
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS
IN THIS MANUAL.

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  Summary of Contents for IBM L180p

  • Page 1: Color Monitor

    MODEL: L180p(9180-HB9) COLOR MONITOR SERVICE MANUAL Chassis No. : CL-42 CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............10 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......12 TIMING CHART ............4 EXPLODED VIEW...........16 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW PARTS LIST......17 WIRING DIAGRAM ..........6 REPLACEMENT PARTS LIST .......18 BLOCK DIAGRAM ........... 7 PIN CONFIGURATION..........21 DESCRIPTION OF BLOCK DIAGRAM.....8 SCHEMATIC DIAGRAM .........
  • Page 3: Precautions

    If the wires are pressed cause short and may • Do not modify original design without obtaining written burn or take fire. permission from IBM or you will void the original parts and labor guarantee. TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT.
  • Page 4: Timing Chart

    TIMING CHART VIDEO SYNC << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Total Period Video Active Time Front Porch Sync Duration Back Porch Sync Mode Resolution Frequency Clock Sort Polarity 31.469 640x350 25.175 70Hz...
  • Page 5: Operating Instructions

    OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW Power Connect AUDIO DC OUT Front Control Panel Front Control Panel USER CONTROL FEATURES Icon Monitor controls Icon Direct Access Functions Switches the monitors on and off. Bring up Brightness adjustment. Display main OSD menu and selects Executes automatic image setup.
  • Page 6: Wiring Diagram

    WIRING DIAGRAM Connector Ass’y P/N: 6631T11016D 6631T20022E Connector Ass’y P/N: J702 J705 - 6 -...
  • Page 7: Block Diagram

    BLOCK DIAGRAM - 7 -...
  • Page 8: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Video Controller Part & Display Data Transmitter Part.(MST9151B) 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 9 50 ~ 60Hz 100KHz HVDC INPUT RECTIFIER ENERGY OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFER AND FILTER LINE 100 ~ 240V SIGNAL PWM CONTROL PHOTO -COUPLER COLLECT- CIRCUIT ISOLATION PRIMARY SECONDARY High Voltage output INVERTER CIRCUIT Operation description_Power 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 10: 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 => Don’t need setup Windows 2000, XP => Need to Port Setup. This program is available to LCD Monitor only. 1.
  • Page 11: Digital

    SERVICE OSD 1) Turn off the power switch at the front side of the display. 2) Wait for about 3 seconds and press Source POWER switch with 1 second interval. 3) The SVC OSD menu contains additional menus that the User OSD menu as described below. a) NVRAM INIT : EEPROM initialize(24C08) b) ADC OFFSET : The lowest value of input leves sets to digitally 0(zero).
  • Page 12: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK POWER BOARD, AND FIND CHECK J705 OUT A SHORT POINT VOLTAGE PIN6, PIN7 (5V)? AS OPENING EACH POWER LINE CHECK U803 PIN 3 CHECK U803. VOLTAGE (5V) ? CHECK CHECK 5VS LINE U804 PIN 3 Voltage (OPEN CHECK)
  • Page 13 2. NO RASTER (OSD IS NOT DISPLAYED) – LIPS NO RASTER (OSD IS NOT DISPLAYED) J705 PIN 6, PIN 7 CHECK LIPS J705 PIN 12 CHECK LIPS 12V? CHECK U201 PIN45 J705 PIN1 PWM PORT 5PWM,0V? CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL.
  • Page 14 3. NO RASTER (OSD IS NOT DISPLAYED) – MST9151 NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS CHECK U804 3.3V? 1. CHECK PIN122, 123 U201 SOLDERING CONDITION PIN122, 123 OSCILLATE AS 2. CHECK X501 12MHZ? 3. TROUBLE IN U201 U501 PIN41 IS 64KHz H-SYNC? CHECK CONNECTION LINE...
  • Page 15 4. TROUBLE IN DPM TROUBLE IN DPM CHECK CHECK PC R734, R741 PC IS NOT GOING (SYNC) ? INTO DPM OFF MODE CHECK U501 PIN 11, 12 TROUBLE IN WAVEFORM X501 (12MHz) ? CHECK TROUBLE IN U501 PIN 24 SIGNAL CABLE (0V) ? TROUBLE IN PC - 15 -...
  • Page 16: Exploded View

    EXPLODED VIEW - 16 -...
  • Page 17: Exploded View Parts List

    4810TKK221B BRACKET, CONTROL PCB(LL180PL) 6631T11016D CONNECTOR ASSEMBLY, 30P H-H 200MM UL20276 18" STD LG808H 6871TPT261B PWB(PCB) ASSEMBLY, POWER, L180P POWER TOTAL SSE IBM18.1" FOR LPL 6871TMT492A PWB(PCB) ASSEMBLY, MAIN, L180P ALRDG IBM CL-42 TOTAL 4814TKK264A SHIELD, INVERTER LL180PL SHIELD 4951TKK162A...
  • Page 18: 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: 2003. 12. 12. DATE: 2003. 12. 12. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 19 DATE: 2003. 12. 12. DATE: 2003. 12. 12. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION D718 0DS226009AA KDS226 TP KEC SOT-23 80V 300 R211 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP D719 0DD184009AA KDS184 TP KEC - 85V - - - 300...
  • Page 20 DATE: 2003. 12. 12. DATE: 2003. 12. 12. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R581 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP R812 0RJ5600D677 560 OHM 1/10 W 5% 1608 R/TP R590 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP...
  • Page 21: Pin Configuration

    PIN CONFIGURATION MST9151 DUAL MSTAR 128P PIN DIAGRAM VSYNC1 AVSS_PLL AVSS_DVI Pin 1 AVSS_DVI LVB0M LVB0P AVDD_DVI GNDP VDDP LVB1M AVSS_DVI LVB1P LVB2M LVB2P AVDD_DVI LVBCKM REXT LVBCKP AVDD_PLL LVB3M AVSS_PLL LVB3P AVDD VDDC AVSS GNDC BIN1 GNDP BIN1M VDDP SOGIN1 LVA0M GIN1...
  • Page 22 CAT24WC08J-TE13 8P BLOCK DIAGRAM DIP Package(p) SOIX Package(J) EXTERNAL LOAD V CC V CC SENSE AMPS D OUT SHIFT REGISTERS V SS V SS V CC COLUMN V SS WORD ADDRESS DECODERS BUFFERS TSSOP Package(U) START/STOP LOGIC V CC E PROM XDEC V SS CONTROL...
  • Page 23: Schematic Diagram

    SCHEMATIC DIAGRAM 1. SCALER - 23 -...
  • Page 24 2. MICOM - 24 -...
  • Page 25 3. POWER - 25 -...
  • Page 26 4. CONNECTOR & JACKS - 26 -...
  • Page 27 5. CONTROL KEY - 27 -...
  • Page 28 Feb. 2004 Printed in Korea P/NO : 3828TSO049G...

This manual is also suitable for:

9180-hb9L180p 9180-hb9