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IBM PS/2 8511 Hardware Maintenance Service

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COVER Book Cover
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IBM Personal System/2 8511 and 8518 Color Displays
Hardware Maintenance - Service supplement
Document Number S41G-2925-00
Part Number 41G2925
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IBM PS/2 8511 and 8518 Color Displays HMS
Book Cover
¦ Copyright IBM Corp. 1992.
COVER - 1

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  • Page 1 IBM PS/2 8511 and 8518 Color Displays HMS Book Cover COVER Book Cover -------------------------------------------------------------------------- IBM Personal System/2 8511 and 8518 Color Displays Hardware Maintenance - Service supplement Document Number S41G-2925-00 Part Number 41G2925 -------------------------------------------------------------------------- ¦ Copyright IBM Corp. 1992. COVER - 1...

  • Page 2: Table Of Contents

    IBM PS/2 8511 and 8518 Color Displays HMS Table of Contents CONTENTS Table of Contents COVER Book Cover CONTENTS Table of Contents FIGURES Figures FRONT_1 Notices Diagnostic Guide Initial Checks 1.1.1 Visual check 0100 1.1.2 Power check 0110 Self-Test Basic Function Checks...

  • Page 3: Figures Figures

    This pamphlet contains display test information and a parts listing for the IBM Personal System/2 8511 and 8518 Color Displays. It is intended to be used with the IBM Personal System/2 Hardware Maintenance Service (part number 15F2200, form number S15F-2200).

  • Page 4: Front_1 Notices

    IBM operates. Any reference to an IBM licensed program or other IBM product in this publication is not intended to state or imply that only the IBM program or other product may be used. Any functionally equivalent program that does not infringe any IBM intellectual property rights may be used instead of the IBM product.

  • Page 5: Diagnostic Guide

    Color Display. Instructions on how to adjust the display are included. Refer to the IBM Personal System/2 8511 and 8518 Color Displays Hardware Maintenance Reference for details of how to get access to the controls on the video assembly.

  • Page 6: Visual Check 0100

    IBM PS/2 8511 and 8518 Color Displays HMS Initial Checks 1.1 Initial Checks The initial checks, visual and power, confirm whether or not the display is ready for operation. Subtopics 1.1.1 Visual check 0100 1.1.2 Power check 0110 ¦ Copyright IBM Corp. 1992.
  • Page 7 IBM PS/2 8511 and 8518 Color Displays HMS Visual check 0100 1.1.1 Visual check 0100 +---+ ¦001¦ +---+ - Check the display and connectors visually for damage, and ensure that the connectors are properly attached. IS THE DISPLAY DAMAGED? ¦...
  • Page 8 IBM PS/2 8511 and 8518 Color Displays HMS Power check 0110 1.1.2 Power check 0110 Note: If you change the card tray assembly or the Integrated Tube Component (ITC), you must then check all the adjustments for the display. +---+ ¦001¦...
  • Page 9 IBM PS/2 8511 and 8518 Color Displays HMS Self-Test 1.2 Self-Test The display must be powered on for five minutes before starting the test. Power off the display. Ensure that the signal cable is disconnected. Power on the display. Set the contrast and brightness controls to maximum (from left to right).
  • Page 10 Basic functions can be checked using the self-test raster. Refer to "Alignment Procedures" in topic 2.0 when adjustments are required after replacing components. Refer to the IBM Personal System/2 8511 and 8518 Color Displays Hardware Maintenance Reference for removal and replacement procedures. +------------------------------------------------------------------------+ ¦...
  • Page 11 Before starting any checks, ensure that all plugs and connectors are positioned correctly and securely. Refer to "Alignment Procedures" in topic 2.0 when adjustments are required. Refer to the IBM Personal System/2 8511 and 8518 Color Displays Hardware Maintenance Reference for removal and replacement procedures. +------------------------------------------------------------------------+ ¦ Symptom ¦...

  • Page 12: Alignment Procedures

    The display must never be left unattended with the covers removed and powered on in a customer environment. Refer to the IBM Personal System/2 8511 and 8518 Color Displays Hardware Maintenance Reference, for details of how to get access to maintenance controls.

  • Page 13: Setup Of Test Equipment

    IBM PS/2 8511 and 8518 Color Displays HMS Test Equipment 2.1 Test Equipment Refer to "Tools and Test Equipment" for details of tools and test equipment required. Subtopics 2.1.1 Setup of Test Equipment ¦ Copyright IBM Corp. 1992. 2.1 - 1...
  • Page 14 IBM PS/2 8511 and 8518 Color Displays HMS Setup of Test Equipment 2.1.1 Setup of Test Equipment Ensure that the connections of all cables are set up as shown in "Tools and Test Equipment" in topic 3.0. ¦ Copyright IBM Corp. 1992.

  • Page 15: Analog Card - Potentiometers

    IBM PS/2 8511 and 8518 Color Displays HMS Maintenance Controls and Internal Connectors 2.2 Maintenance Controls and Internal Connectors PICTURE 3 Figure 3. Analog and Video Cards Subtopics 2.2.1 Analog Card - Potentiometers 2.2.2 Connectors - Internal 2.2.3 EHT Transformer 2.2.4 Video Card - Potentiometers...
  • Page 16 IBM PS/2 8511 and 8518 Color Displays HMS Analog Card - Potentiometers 2.2.1 Analog Card - Potentiometers RV100 Factory Adjustment Only RV400 Vertical Height RV302 East West Pincushion Correction (EWPCC) RV401 Vertical Centering RV303 Horizontal Width RV304 Raster Centering ¦ Copyright IBM Corp. 1992.
  • Page 17 IBM PS/2 8511 and 8518 Color Displays HMS Connectors - Internal 2.2.2 Connectors - Internal P100 Degauss P103 Mains Input P300 Synchronization P401 Horizontal and Vertical Coils P301/P601 Video Card Supply Interface (Fixed) P400/P802 Control Card Interface P600 Video/Test Signal ¦...
  • Page 18 IBM PS/2 8511 and 8518 Color Displays HMS EHT Transformer 2.2.3 EHT Transformer G2 Control Focus ¦ Copyright IBM Corp. 1992. 2.2.3 - 1...
  • Page 19 IBM PS/2 8511 and 8518 Color Displays HMS Video Card - Potentiometers 2.2.4 Video Card - Potentiometers RV600 White Video Gain RV652 Green Video Gain RV632 Red Video Gain RV651 Green Video Cutoff RV631 Red Video Cutoff RV671 Blue Video Cutoff PICTURE 4 Figure 4.
  • Page 20 IBM PS/2 8511 and 8518 Color Displays HMS Preliminary Steps 2.3 Preliminary Steps Insert the IBM PS/2 Color Display 8518 Setup Diskette into drive A of the system unit. Note: The IBM PS/2 Color Display 8518 Setup Diskette is used for setting up both the 8511 and 8518 Color Displays.
  • Page 21 IBM PS/2 8511 and 8518 Color Displays HMS Geometry 2.4 Geometry Select pattern A, green rectangle on a black background: Adjust RV304 (Raster Centering) to center the rectangle. Adjust RV303 (Width) for a gap of: 16 mm (for 8511 Color Displays),...

  • Page 22: Procedure Using A Color Analyzer

    IBM PS/2 8511 and 8518 Color Displays HMS Video Levels and Cutoff Voltages 2.5 Video Levels and Cutoff Voltages Select pattern C, black field: Set RV600, RV631, RV651, and RV671 (cutoff potentiometers) fully clockwise, as viewed from the video card shield.
  • Page 23 IBM PS/2 8511 and 8518 Color Displays HMS Procedure Using a Color Analyzer 2.5.1 Procedure Using a Color Analyzer The use of a Minolta TV Color Analyzer (**), or equivalent, is recommended for setting the white color point and maximum brightness.

  • Page 24: Focus

    IBM PS/2 8511 and 8518 Color Displays HMS Focus 2.6 Focus Select pattern D, red crosshatch pattern. Adjust the Focus control to give sharp vertical and horizontal lines. Take care not to disturb the G2 setting. This completes the alignment procedures.

  • Page 25: Degaussing

    IBM PS/2 8511 and 8518 Color Displays HMS Degaussing 2.7 Degaussing The effect of stray magnetic fields on the color purity of an ITC depends on the orientation of these fields with respect to the ITC. Color displays have a magnetic shielding system, consisting of a magnetic screen, internal to the ITC, and the shadow mask together with its mounting frame, to combat stray magnetic fields.

  • Page 26: Tools And Test Equipment

    IBM PS/2 8511 and 8518 Color Displays HMS Tools and Test Equipment 3.0 Tools and Test Equipment The following equipment is required to repair an IBM 8511 or 8518 Display: IBM Personal System/2 system unit IBM PS/2 8518 Color Display Setup Diskette (part 91F8838 for all locations except EMEA;...
  • Page 27 IBM PS/2 8511 and 8518 Color Displays HMS Test Equipment Setup 3.1 Test Equipment Setup Set up the equipment as shown in Figure 5. PICTURE 5 Figure 5. Test Equipment Setup ¦ Copyright IBM Corp. 1992. 3.1 - 1...
  • Page 28 IBM PS/2 8511 and 8518 Color Displays HMS 8511 Color Display Parts 3.2 8511 Color Display Parts Note: Order the appropriate Field Replacement Unit (FRU) for the display you are servicing from this list. The FRU number includes the packaging.
  • Page 29 IBM PS/2 8511 and 8518 Color Displays HMS Color Display 8518 Parts 3.3 Color Display 8518 Parts Note: Order the appropriate Field Replacement Unit (FRU) for the display you are servicing from this list. The FRU number includes the packaging.

  • Page 30: Rid Tag

    IBM PS/2 8511 and 8518 Color Displays HMS Notes: 3.4 Notes: Subtopics 3.4.1 RID Tag ¦ Copyright IBM Corp. 1992. 3.4 - 1...
  • Page 31 IBM PS/2 8511 and 8518 Color Displays HMS RID Tag 3.4.1 RID Tag If the cover set or display is exchanged, a repair identification (RID) tag must be applied. Use a blank RID tag (part 6342125), and complete it with the name, type, and serial number of the original tag.

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Ps/2 8518

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