IBM L200P Service Manual
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IBM L200P Service Manual

Color monitor chassis no. : cl-35
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MODEL: L200P

COLOR MONITOR

SERVICE MANUAL

Chassis No. : CL-35
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS
IN THIS MANUAL.

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Summary of Contents for IBM L200P

  • Page 1: Color Monitor

    MODEL: L200P COLOR MONITOR SERVICE MANUAL Chassis No. : CL-35 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 ......11 TIMING CHART ............4 PRINTED CIRCUIT BOARD........14 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW...........17 WIRING DIAGRAM ..........6 REPLACEMENT PARTS LIST .......19 BLOCK DIAGRAM ........... 7 PIN CONFIGURATION..........24 DESCRIPTION OF BLOCK DIAGRAM.....8 SCHEMATIC DIAGRAM .........

  • Page 3: 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 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 640x350 31.47 25.175 70Hz...

  • Page 5: Operating Instructions

    OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW Front Control Panel Power Power Switch Coard Front Control Panel Executes automatic image setup. Switches the monitors on and off. CONTROLS LOCK / UNLOCK Display main OSD menu and selects highlighted menu item. This feature allows you to secure the current control settings, while allowing the user to adjust Brightness, so that they cannot be inadvertently changed.

  • Page 6: Wiring Diagram

    Connector Ass’y P/N: Connector Ass’y P/N: 6631T25005F 6631T20013P Connector Ass’y P/N: 6631T20015X Connector Ass’y P/N: 6631T25008Q CN12 P904 Connector Ass’y P/N: 6631T11016J CN11...

  • Page 7: Block Diagram

    DDC-SDAA2 Video Signal DDC-SDAA Buffer E PROM DDC-SCLA2 E PROM 3.3V (24LC21) (74FCT541CT) CS0N Multiplexer (24LC16B) B B B B L L L L O O O O N N N N 3.3V 2.5VSTB 3.3V DDC-SCLA (MC14066B) 3.3V TMDSRX_PDNN LVDS R,G,B 5VST Transmitter...

  • Page 8: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. Input Selection Circuit This block is composed of 74LVC257(U1) and peripheral devices. There are two input, Analog and Digital H/V Sync. LVC257 IC chooses one input and outputs selected input through sync selection pin (Pin 1). 2.
  • Page 9 50 ~ 60Hz 100KHz HVDC INPUT RECTIFIER ENERGY OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFER AND FILTER LINE 100 ~ 240V PWM CONTROL PHOTO-COUPLER SIGNAL CIRCUIT ISOLATION COLLENTION SECONDA RY PRIMARY 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

    3) Press Menu key, Right key, Left key, Power key in sequence. • Alignment appliances and tools. 4) Select “WHITE BALANCE ADJUST” and press Right - IBM compatible PC KEY. - Programmable Signal Generator. 5) After “INPUT WHITE PATTERN” message, Display (eg.

  • Page 11: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. OUT OF ORDER ON POWER POWER LAMB OFF STATE POWER CHECK KEY CONTROL CHECK CONN(J6) CHECK KEY_CONTROL CHECK PW166B(U8) M29W800AT(U9) INVERTER MODULE INPUT POWER INPUT POWER INPUT POWER INPUT POWER CHECK CHECK CHECK CHECK U20(3.3V) U20(3.3V) U34(18V) U34(18V) CONN(J1) CHECK CONN (J4) CHECK...
  • Page 12 2. NO RASTER STATE ON ANALOG SIGNAL NO RASTER ON ANALOG SIGNAL POWER CHECK OF 74LVC257(U1) : CHECK IN FRONT OF U20(3.3V) PW166B CHECK OF AD9888(U4) : IN FRONT OF PW166B POWER CHECK OF TMDS TRANSMITTER_SIL161(U201) : IN FRONT OF SIL161 CHECK I/O SYNC OF 74LVC257 (U1) NO INPUT SIGNAL...
  • Page 13 3. NO RASTER STATE - DIGITAL SIGNAL INPUT NO RASTER ON DIGITAL INPUT 74LVC257(U1) POWER CHECK : CHECK NODE IN FRONT OF U20(3.3V) PW166B POWER : POWER CHECK TMDS TRANSMITTER_SIL161B(U201) POWER CHECK : IN FRONT OF SIL161B(U201) 74LVC257(U1) IN/OUT SYNC CHECK NO INPUT SIGNAL DVI-D(J10) PERIPHERAL TMDS RECEIVER...

  • Page 14: Printed Circuit Board

    R104 R216 C175 R101 C145 C103 ZD21 C109 R112 R114 ZD24 R342 R135 C248 C100 R164 R100 R105 R169 C101 C136 R202 R137 R148 R138 C108 R199 C219 R208 R200 R219 R120 R221 C116 R146 R119 R215 R220 R413 R122 R414 L210 C414...
  • Page 15 C110 C402 C111 C405 C401 R401 C112 C404 R405 C113 C411 R406 C135 C403 C412 C163 C415 R411 C162 R409 C413 C161 C170 C166 C149 C157 C164 R408 C152 C160 C165 C134 C133 C167 C105 C139 C151 C168 C104 C169...

  • Page 17: Exploded View

    EXPLODED VIEW - 17 -...

  • Page 18: Exploded View Parts List

    BACK COVER ASSEMBLY, LL20PA . STEALTH BK. 3809TKL044B TILT SWIVEL ASSEMBLY LL20PA . (GE RESIN) 3043TKK050X PWB(PCB) ASSEMBLY, SUB, LT20PA CONTROL TOTAL IBM . 6871TST362A CONNECTOR ASSEMBLY, 30P H-H 100MM UL20276 AWG30 LB200A LPL 6631T11016J METAL ASSEMBLY, FRAME MAIN(LL20PA LPL)

  • 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: 2003. 02. 10. DATE: 2003. 02. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 20 DATE: 2003. 02. 10. DATE: 2003. 02. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C202 0CH8107H611 100UF 25V M 85STD(CYL) R/TP 0DS226009AA KDS226 TP KEC SOT-23 80V 3 C204 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R...
  • Page 21 DATE: 2003. 02. 10. DATE: 2003. 02. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 6210TCE001P HB-1S2012-121JT CERATECH 20 0RJ1500D677 150 OHM 1/10 W 5% 1608 R/TP 6210TCE001P HB-1S2012-121JT CERATECH 20 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP 6210TCE001P...
  • Page 22 DATE: 2003. 02. 10. DATE: 2003. 02. 10. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP R169 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP R170...
  • Page 23 47UF KMG 50V M FM5 TP 5 R928 0RN6202F409 62KOHM 1/6 W 1% TA52 C908 181-288K MKT 100V 683JTR PHS26683 T901 6170TMZ145A EER3016 500UH V-10PIN IBM 2 C909 0CE476EF638 47UF KMG 16V M FM5 TP 5 TH901 6322TA080AA TP8D13 DAEWOO +/- 15% 110/ C910 0CE336BH638...

  • Page 24: Pin Configuration

    AD988KS-205 ANALOG DEVICE PIN 1 REF BYPASS IDENTIFIER RMIDSCV SOGIN0 SOGIN1 AD9888 TOP VIEW (Not to Scale) BMIDSCV CKINV CLAMP PIN CONFIGURATION...
  • Page 25 BLOCK DIAGRAM ACTIVITY SYNC SLICER DETECT SYNC SEPARATOR COMP MUX5 NEGATIVE PEAK INTEGRATOR SYNC CLAMP SOGIN0 VSYNC SOGIN1 MUX1 HSYNC0 SOGOUT HSYNC1 MUX5 ACTIVITY DETECT POLARITY DETECT HSYNCOUT PIXEL CLOCK CLOCK MUX2 GENERATOR COAST MUX3 POLARITY DETECT VSYNC0 VSYNCOUT VSYNC1 MUX5 ACTIVITY POLARITY...
  • Page 26 S524A40X10/40X20/40X40 SCL SDA S524A40X10/ 40X20/40X40 NOTE: The S524A40X10/40X20/40X40 is available in 8-pin DIP, SOP, and TSSOP package. Figure 2-2. Pin Assignment Diagram Table 2-1. S524A40X10/40X20/40X40 Pin Descriptions Circuit Name Type Description Type A0, A1, A2 Input Input pins for device address selection. To configure a device address, these pins should be connected to the V or V of the device.
  • Page 27 Start/Stop HV Generation Logic Timing Control Control Logic EEPROM Cell Array Slave Address Word Address 128 x 8 bits Comparator Pointer decoder 256 x 8 bits 512 x 8 bits Column Decoder Data Register and ACK Figure 2-1. S524A40X10/40X20/40X40 Block Diagram...

  • Page 28: Pin Configuration

    SIL161BCT100 C O N T R O L S G PO E V E N 8-bits RE D Q O 2 Q E13 Q O 3 Q E12 Q O 4 Q E11 Q O 5 Q E10 Q O 6 Q E9 Q O 7 Q E8...
  • Page 29 THC63LVDM83R THC63LVDM 83R THC63LVDM63R TA 4 TA 4 TA 3 TA 2 TA 5 TA 2 TA 5 TA 1 TA 6 TA 6 TA 1 TA 0 TA 0 LV DS GND LVDS GND TA - TA - TA + TA + LV DS VCC LV DS VCC...

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