Page 1 Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies. MAINTENANCE AND SERVICE GUIDE COMPAQ CONTURA 400 FAMILY OF PERSONAL COMPUTERS Second Edition (June 1995) First Edition (September 1994) Part Number 147951-002...
Page 2 This Maintenance and Service Guide is used for reference when servicing the Compaq Contura 400 Family of Personal Computers. Compaq Computer Corporation reserves the right to make changes to the Compaq Contura 400 Family of Personal Computers without notice. Symbols The following words and symbols mark special messages throughout this guide: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>...
Page 3 o Compaq Service Quick Reference Guide o Service Training Guides o Compaq Service Advisories and Bulletins o Compaq QuickFind...
Page 4 Chapter 1. Illustrated Parts Catalog Introduction Chapter 1.1 Illustrated Parts Breakdown The computer combines a display assembly and system unit module. The display and system unit module are joined together by clutches on either side secured by screws in the chassis and display enclosure allowing it to open and close.
Page 5 Chapter 1.3 System Unit Module Overview The system unit module (Figure 1-4) contains the following upgradable components: o Hard drive o Memory expansion board o Processor upgrade (Contura 400 only) A complete list of replaceable parts is included in Table 1-1. Major components include:...
Page 6 Compaq Contura Models Table 1-1 lists the Compaq Contura 400 Family of Personal Computer Models and standard features. Table 1-1. Compaq Contura 400 Family of Personal Computer Models...
Page 7 =========================================================================== Models 400 and 410 This section provides a description of the system unit module components for Models 400 and 410. These components are accessed from the bottom of the computer: o Hard drive -- The hard drive is easily replaced or upgraded from the bottom of the computer.
Page 8 PC Card ejection levers are replaceable, but are not interchangeable with those used in the Models 420 and 430. o Diskette drive -- The diskette drive attaches to the system board by a bracket and three screws. It is connected by a diskette drive cable and LIF connector.
Page 9 o Battery pack -- The Nickel Metal Hydride battery pack is accessed through the battery compartment. To access the remaining system unit components, open the computer and remove the keyboard assembly. These components include the following: o Integrated trackball assembly -- This optical trackball is centrally located at the bottom of the keyboard assembly.
Page 10 Chapter 1.4 Display Assembly Overview Display Assembly Description This section provides a description of the display assembly and components. All display assemblies (Figure 1-5 and Figure 1-6) include the following replaceable parts: o Bezel o Enclosure latches o Inverter board o Liquid crystal display (LCD) panel o Shield o Enclosure...
Page 11 To replace the display assembly, the assembly must be removed from the system unit module. This is done by removing the keyboard assembly, disconnecting the display cable and display ground cable from the system unit module, removing the tilt feet and handle brackets, removing the rear clutch screws, and lifting off the display assembly.
Page 12 Chapter 1.5 Docking Base The docking base includes the following replaceable parts: o Battery door o Feet o Handle...
Page 13 Chapter 1.6 Monitor Support Cover The monitor support cover is used with the docking base. The foot on the monitor support cover is the only replaceable part.
Page 14 Chapter 1.7 System Unit Module Parts...
Page 15 Table 1-2. System Unit Module -- Models 400 and 410 =========================================================================== Spare Part Description Number =========================================================================== 1. Base enclosure 147856-001 --------------------------------------------------------------------------- 2. System board - 486 DX2/40 MHz 147944-001 - 486 DX2/50 MHz 147621-001 --------------------------------------------------------------------------- 3. Diskette drive bracket 147857-001 --------------------------------------------------------------------------- 4.
Page 16 5. Processor upgrade 486 DX2/50 MHz 169644-001 --------------------------------------------------------------------------- 6. Real-time clock battery 117099-001 --------------------------------------------------------------------------- 7. Mechanical Trackball 147876-001 --------------------------------------------------------------------------- 8. PC Card ejection assembly 147871-001 --------------------------------------------------------------------------- 9. Chassis 147865-001 --------------------------------------------------------------------------- 10. Clutches 147858-002 --------------------------------------------------------------------------- 11. Hard drive * - 350 MB 189111-001 - 250 MB 199233-001...
Page 17 Table 1-3. System Unit Module -- Models 420 and 430 =========================================================================== Spare Part Description Number =========================================================================== 1. Base enclosure 189239-001 --------------------------------------------------------------------------- 2. System board - 486 DX4/75 MHz 189115-001 4 MB - 486 DX4/75 MHz 189116-001 8 MB - 486 DX4/100 MHz 189134-001 8 MB Notes...
Page 18 --------------------------------------------------------------------------- 3. Diskette drive bracket 189240-001 --------------------------------------------------------------------------- 4. Diskette drive 147963-001 --------------------------------------------------------------------------- 5. Real-time clock battery 117099-001 --------------------------------------------------------------------------- 6. Optical Trackball assembly 189197-001 --------------------------------------------------------------------------- 7. PC Card ejection assembly 189242-001 --------------------------------------------------------------------------- 8. Chassis 189241-001 --------------------------------------------------------------------------- 9. Clutches 147858-001 --------------------------------------------------------------------------- 10. Hard drive * - 720 MB 189156-001 - 540 MB...
Page 19 Table 1-4. Monochrome Display Assembly -- Models 400 and 410 =========================================================================== Description Spare Part Number =========================================================================== 1. Display bezel 147882-001 2. Backlight inverter board 147622-001 3. Display panel 147877-001 4. Display cables 147884-001 5. Display clutch 147858-001 (left and right) 6.
Page 20 Chapter 1.9 Color STN (9.5 inch) Display Assembly Parts Table 1-5. CSTN (9.5 inch) Display Assembly -- Models 400 and 410 =========================================================================== Description Spare Part Number =========================================================================== 1. Display bezel 147883-001 2. Backlight inverter board 147624-001 3. Display panel 147878-001 4.
Page 21 =========================================================================== Chapter 1.10 Color STN (10.4 inch) Display Assembly Parts Table 1-6. CSTN (10.4 inch) Display Assembly -- Models 420 and 430 =========================================================================== Spare Part Description Number =========================================================================== 1. Display bezel 189246-001 2. Backlight inverter board 189135-001 3. Display panel 189113-001 4.
Page 22 6. Display enclosure 189245-001 7. Screw kit * 147885-001 --------------------------------------------------------------------------- * Not Shown =========================================================================== Chapter 1.11 Color TFT (8.4 inch) Display Assembly Parts Table 1-7. CTFT (8.4 inch) Display Assembly -- Models 400 and 410 =========================================================================== Spare Part Description Number =========================================================================== 1.
Page 23 5. Display clutch (left and right) 147858-001 6. Display enclosure 147881-001 7. Screw kit * 147885-001 --------------------------------------------------------------------------- * Not Shown =========================================================================== Chapter 1.12 Color TFT (10.4 inch) Display Assembly Parts Table 1-8. CTFT (10.4 inch) Display Assembly -- Models 420 and 430 =========================================================================== Spare Part Description...
Page 24 board 189136-001 3. Display panel 189114-001 4. Display cables 189247-001 5. Display clutch (left and right) 147858-001 6. Display enclosure 189243-001 7. Screw kit * 147885-001 --------------------------------------------------------------------------- * Not Shown =========================================================================== Chapter 1.13 Keyboards Table 1-9. Contura Notebook Keyboards =========================================================================== Description Includes labels and shield Includes:...
Page 25 =========================================================================== 1. CPU Cover Includes: a. PC Card door b. spring * c. indicator panel d. light deflector 2. U.S. 3. U.K. 4. German 5. French 6. Italian 7. Spanish 8. Danish 9. Norwegian 10. Swedish/Finnish 11. Swiss 12. French Canadian 13.
Page 26 Table 1-10. Contura Enhanced Keyboards =========================================================================== Description =========================================================================== 1. Enhanced II Keyboard - Domestic 2. Enhanced III Keyboard - U.K. 3. Enhanced III Keyboard - German 4. Enhanced III Keyboard - French 5. Enhanced III Keyboard - Italian 6. Enhanced III Keyboard - Spanish 7.
Page 27 12. Enhanced III Keyboard - Portuguese 13. Enhanced III Keyboard - Turkish 14. Enhanced III Keyboard - Greek 15. Enhanced III Keyboard - Latin American 16. Enhanced III Keyboard - Arabic 17. Enhanced III Keyboard - Belgian 18. Enhanced III Keyboard - Japanese 19.
Page 28 Table 1-11. Cables for Models 400 and 410 =========================================================================== Description =========================================================================== 1. Display cables a. CSTN (9.5 in) Models 400 and 410 b. MSTN (9.5 in) (Model 400 only) c. CTFT (8.4 in) Models 400 and 410 d. Ground cable for Models 400 and 410 --------------------------------------------------------------------------- 2.
Page 29: Chapter 1.16 Ac Adapter And Power Cord
Table 1-12. Cables for Models 420 and 430 =========================================================================== Description =========================================================================== 1. Display cables a. CTFT (10.4 in) Models 420 and 430 b. CSTN (10.4 in) Models 420 and 430 c. XOVER board for CSTN (10.4 in) only d. Ground cable for Models 420 and 430 --------------------------------------------------------------------------- 2.
Page 30 Table 1-13. Contura AC Adapter and Power Cord =========================================================================== Description (All Models) =========================================================================== 1. AC adapter with wallprongs 2. AC adapter 3. Power cord (U.S./Canada) 4. Power cord (U.K.) 5. Power cord (Europe) 6. Power cord (Japan) 7. Power cord (Australia) --------------------------------------------------------------------------- * Not shown ===========================================================================...
Page 31 Table 1-14. Contura Memory and Processor =========================================================================== Description (All Models) =========================================================================== 1. Memory expansion board a. 4 MB b. 8 MB c. 16 MB d. 24 MB * 2. Processor upgrade (Model 400 only) 486 DX2/50 MHz --------------------------------------------------------------------------- * Not Shown =========================================================================== Chapter 1.18 Miscellaneous Carrying Devices Spare Part Numbers...
Page 32 Table 1-15. Miscellaneous Carrying Devices =========================================================================== Description (All Models) =========================================================================== 1. Briefcase, Ramie 2. Slipcase 3. Briefcase, SS (soft-sided) --------------------------------------------------------------------------- * Not Shown =========================================================================== Chapter 1.19 Docking Base and Monitor Support Cover Spare Part Numbers 129930-001 194162-001 121423-001 *...
Page 33 Table 1-16. Docking Base and Monitor Support Cover =========================================================================== Description (All Models) =========================================================================== 1. Docking Base - Ethernet 2. Docking Base - pass-thru 3. Docking base miscellaneous a. Battery door b. Feet c. Handle d. Screws (Quantity = 2) 4. Monitor support cover 5.
Page 34 =========================================================================== Description =========================================================================== Handle --------------------------------------------------------------------------- Automobile adapter --------------------------------------------------------------------------- Memory door assembly includes hard drive tray --------------------------------------------------------------------------- Carton, (Quantity = 5) --------------------------------------------------------------------------- Carton and buns, (Quantity = 1) --------------------------------------------------------------------------- Clutches (left and right) --------------------------------------------------------------------------- Anti-skid feet --------------------------------------------------------------------------- Plate logo --------------------------------------------------------------------------- Box, 420C --------------------------------------------------------------------------- SpeedPaq 192 Data Fax Cellular Modem...
Page 35 Chapter 1.21 Fastener List Table 1-18. Fastener Kit for All Models =========================================================================== Description: --------------------------------------------------------------------------- Screws and Fastners Kit (Quantity = 25 each) =========================================================================== =========================================================================== Description Type Where Used =========================================================================== M2.5 x 4.0 Truss Ground tabs on display shields Diskette bracket to system board Hold down system board to base and...
Page 36: Chapter 1.22 Documentation And Software
M3.0 x 8.0 Display to display enclosure --------------------------------------------------------------------------- M2.5 x 24.0 Truss CPU cover to CPU base --------------------------------------------------------------------------- M2.6 x 2.0 Fillister Diskette drive to FDD bracket --------------------------------------------------------------------------- M3.0 x 3.6 Truss Hard drive to HDD bracket --------------------------------------------------------------------------- M2.0 x 6.0 Fillister PC Card Header ---------------------------------------------------------------------------...
Page 37 German French Italian Spanish Netherlands Swedish --------------------------------------------------------------------------- Manuals - English QUICK SETUP BEYOND SETUP --------------------------------------------------------------------------- Manuals - German QUICK SETUP BEYOND SETUP KEYBOARD REFERENCE --------------------------------------------------------------------------- Manuals - French QUICK SETUP BEYOND SETUP KEYBOARD REFERENCE --------------------------------------------------------------------------- Manuals - Italian QUICK SETUP BEYOND SETUP KEYBOARD REFERENCE ---------------------------------------------------------------------------...
Page 38 Danish Norwegian Swedish Portuguese Dutch Finnish --------------------------------------------------------------------------- Manual - LOTUS ORGANIZER English German French Italian Spanish Danish Norwegian Swedish Dutch Finnish --------------------------------------------------------------------------- COMPAQ SERVICE QUICK REFERENCE GUIDE --------------------------------------------------------------------------- ROMPaq diskette =========================================================================== 195973-081 195973-091 195973-101 195973-131 195973-331 195973-351 137885-001 137885-041 137885-051 137885-061 137885-071 137885-081...
Page 39: Chapter 2.1 Electrostatic Discharge
Chapter 2. Preparing the Computer for Service Introduction This chapter provides general service information necessary to prepare the computer for service in the following areas: o Electrostatic discharge o Service preliminaries o Battery disposal Adherence to the procedures and precautions described in this chapter is essential for proper service.
Page 40 Motions of bench worker Removing DIPS from plastic tubes Removing DIPS from vinyl trays Removing DIPS from Styrofoam Removing bubble pack from PCBs Packing PCBs in foam-lined box --------------------------------------------------------------------------- NOTE: 700 volts can degrade a product. =========================================================================== Preventing Electrostatic Damage to Equipment Many electronic components are sensitive to ESD.
Page 41 Grounding Methods The method for grounding must include a wrist strap or a foot strap at a grounded workstation. When seated, wear a wrist strap connected to a grounded system. When standing, use footstraps and a grounded floor mat. Table 2-2. Static-Shielding Protection Levels =========================================================================== Method Voltages...
Page 42 dissipative floor mats, use straps on both feet with a minimum of 1 megohm of resistance between operator and ground. To be effective, the conductive strips must be worn in contact with the skin. Field service tools, such as cutters, screwdrivers, vacuums, that are conductive.
Page 43 o Tool requirements o Screws o Cable and connectors o Plastics Tool Requirements o Flat-bladed screwdriver o Torx T8 screwdriver (included in 130619-001) o Hex socket driver (3/16) o 25-Pin printer loopback plug (included in 100767-001) o 9-Pin serial loopback plug (included in 100767-001) o Trackball removal tool (spare part number 147779-001) o Case Utility tool (spare part number 119070-001 and included in 100767-001))
Page 44 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Keyboard >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened at a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 45 Compaq has initiated a disposal/recycling program for these battery packs. Further, because Compaq is funding all costs associated with the program, it is offered at no cost to Compaq laptop and notebook customers. IMPORTANT: Toll-Free Number (U. S.) 1-800-524-9859, (Canada) 1-800-263-5868 Customers in North America can take advantage of this program immediately.
Page 46: Chapter 3. Removal And Replacement Procedures
Chapter 3. Removal and Replacement Procedures Introduction This chapter provides complete removal and replacement procedures for the Compaq Contura 400 Family of Personal Computers. Procedures that apply to specific models are indicated in parenthesis. After completing removal and replacement procedures, run the diagnostics program to verify that all components operate properly.
Page 47 |-- 3.16 PC Card (PCMCIA) ASSEMBLY |-- 3.17 PC Card (PCMCIA) EJECTION LEVERS AND PIN |-- 3.18 PC Card (PCMCIA) DOORS AND SPRINGS |-- 3.19 SYSTEM CHASSIS |-- Trough |-- 3.20 CPU BASE |-- Battery shield clip |-- Lock provision plate |-- Anti-skid pads |-- 3.21 DISPLAY ASSEMBLY COMPONENTS (Models 400 and 410) |-- Bezel...
Page 48: Chapter 3.2 Preparing The Computer
|-- Handle |-- 3.31 MONITOR SUPPORT COVER Chapter 3.2 Preparing the Computer >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< There is a danger of explosion and risk of personal injury if the battery is incorrectly replaced or mistreated. Do not attempt to recharge the battery, disassemble it, or immerse it in water or dispose of it in fire.
Page 49 5. Disconnect the AC Adapter power cord from the computer (Figure 3-2). 6. Eject the diskette (Figure 3-2) and PC Card, if installed.
Page 50 7. Open the battery compartment by lifting up the front of the computer [1] and sliding the battery compartment release button to the right [2]. The battery compartment opens slightly. Lower the compartment [3] (Figure 3-3).
Page 51 8. Remove the battery pack (Figure 3-4).
Page 52: Chapter 3.3 Handle Bracket
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Metal objects can damage the battery pack and the connectors inside the compartment. To prevent damage, do not let metal objects touch any of the connectors. Do not place any objects other than the battery pack in the battery compartment.
Page 53 2. Close the computer and turn it top-side down. 3. Move the tilt foot toward the front of the computer, exposing the handle bracket screw on either side of the computer (Figure 3-5). 4. Using a Torx T8 , remove the screw and washer from each handle bracket. These screws are not reusable and must be discarded.
Page 54 6. To install the handle bracket, reverse the previous steps. Discard the old screws and replace with new screws. Chapter 3.4 Tilt Feet This procedure is necessary if replacing the tilt feet or if separating the display assembly from the system unit module. Removing the Tilt Feet To remove the tilt feet, follow these steps: 1.
Page 55: Chapter 3.5 Hard Drive
4. To install the tilt foot, reverse the previous steps. Discard the old screws and replace with new screws. Chapter 3.5 Hard Drive This section contains removal procedures for the following hard drive components: o Hard drive compartment cover o Hard drive o Hard drive bracket Removing the Hard Drive Compartment Cover To remove the hard drive compartment cover, follow these steps:...
Page 56 2. Close the computer and turn it top-side down. 3. Using a Torx T-8 or flat-bladed screwdriver, remove the two screws from the hard drive compartment cover (Figure 3-8). NOTE: These two screws also secure the CPU base to the keyboard and must be removed in order to remove the keyboard and access system components.
Page 57 5. To replace the hard drive compartment cover, reverse the previous steps making sure to insert the bracket's tab under the plastic edge. Removing the Hard Drive 1. Remove the hard drive compartment cover. Refer to "Removing the Hard Drive Compartment Cover" in this section. 2.
Page 58 4. To replace the hard drive, reverse the previous steps. Removing the Hard Drive Bracket 1. Remove the hard drive compartment cover. Refer to "Removing the Hard Drive Compartment Cover" in this section. 2. Remove the hard drive and bracket. Refer to "Removing the Hard Drive" in this section.
Page 59 4. To replace the hard drive bracket, reverse the previous steps. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the system board connectors, ensure that the hard drive is aligned correctly. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< IMPORTANT: The hard drive bracket has four screw holes, one of which is elongated and one is small.
Page 60: Chapter 3.6 Memory Expansion Board
Chapter 3.6 Memory Expansion Board This section contains removal and replacement procedures for the memory compartment cover and the memory expansion board. The memory compartment cover and the bottom of the CPU base are embossed with arrows and two icons that indicate whether the memory compartment cover is unlocked [1] or locked [2].
Page 61 Removing and Replacing the Memory Compartment Cover To remove the memory compartment cover, follow these steps: 1. Disconnect all power from the computer and remove the battery pack, diskette, and PC Card, if installed (Section 3.2). 2. Close the computer and turn it top-side down. 3.
Page 62 4. To replace the memory compartment cover, reverse the previous steps. Removing the Memory Expansion Board To remove the memory expansion board, follow these steps: 1. Remove the memory compartment cover. Refer to "Removing and Replacing the Memory Compartment Cover" in this section. 2.
Page 63 Replacing the Memory Expansion Board To replace the memory expansion board, follow these steps: 1. Align the two connectors on the memory expansion board with the corresponding connectors on the system board. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the memory expansion board, do not apply pressure to the middle of the board.
Page 64: Chapter 3.7 Keyboard Assembly
3. Replace the memory compartment cover. Refer to " Removing and Replacing the Memory Compartment Cover" in this section. Chapter 3.7 Keyboard Assembly This section contains removal and replacement procedures for the following the keyboard assembly components: o CPU cover o Keyboard o Top PC Card door and spring NOTE: The bottom PC Card door and spring are part of the CPU base.
Page 65 battery pack (Section 3.2). 2. Close the computer and turn it top-side down. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Screws in the computer are not interchangeable. As you remove screws, place them with the components you removed. insert the screws in the wrong place. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 66 4. Use a case utility tool to remove the hard drive compartment cover (Figure 3-18). 5. Carefully, turn the computer top-side up and open the display to its fully opened position (135-degree angle) (Figure 3-19).
Page 67 6. Using the case utility tool, lift up the outside rear corners of the keyboard assembly to release the keyboard snaps [1], and tilt the keyboard assembly toward you to release the keyboard connector [2] (Figure 3-20). IMPORTANT: When using the case utility tool, use care to keep it out of the diskette drive area.
Page 68 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, be sure to support the computer when opening the display. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 7. Remove the keyboard assembly by lifting it up [1] and off the front of the computer [2] (Figure 3-21).
Page 69 8. Position the display to a 90-degree angle (Figure 3-22).
Page 70 Removing the CPU Cover To remove the CPU cover for replacement, follow these steps. 1. Remove the keyboard assembly from the computer. Refer to "Removing the Keyboard Assembly" in this section. 2. Turn the keyboard assembly top-side down. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Note the position of the screws removed from the bottom of the keyboard assembly.
Page 71 4. Separate the CPU cover from the keyboard (Figure 3-23). 5. To replace the CPU cover, reverse the previous steps. Removing the Top PC Card (PCMCIA) Door and Spring To remove the top PC Card door and spring from the keyboard assembly, follow these steps: 1.
Page 72 Replacing the Top PC Card (PCMCIA) Door and Spring To replace the top PC Card Door and Spring to the keyboard assembly, follow these steps: 1. Install the PC Card spring on the door post, ensuring that the bent arm of the spring is placed against the rib on the PC Card door (Figure 3-25).
Page 73 2. Install the PC Card (PCMCIA) door, ensuring that the spring is placed between the post [1] and the rib [2] (Figure 3-26).
Page 74 Replacing the Keyboard Assembly If installing a new keyboard assembly, the hook and loop fastener will have to be attached to the diskette drive bracket: To attach the hook and loop fastener to the diskette drive bracket, follow these steps: 1.
Page 75 To replace the existing keyboard assembly in the computer, follow these steps: 1. Open the display to its fully opened position of 135-degrees (Figure 3-28).
Page 76 2. Angle the front end of the keyboard assembly into place at the front edge of the system unit module. 3. Ensure that the front plastic seams of the keyboard assembly and the front of the system unit module are aligned and flush with each other. 4.
Page 77 Chapter 3.8 Battery Compartment Components This section contains removal procedures for the following battery compartment components: o Battery compartment o Anti-skid pad o Battery release button spring o Battery release button Removing the Battery Compartment To remove the battery compartment components, follow these steps: 1.
Page 78 forth, then lifting it up from the bottom of the base (Figure 3-30). 4. To replace the battery compartment, reverse the previous steps. Attaching the Anti-Skid Pads If installing a new battery compartment, two anti-skid pads must be attached to the bottom of the battery compartment. To attach the anti-skid pads, follow these steps: 1.
Page 79 Removing the Battery Release Spring and Button To remove the battery release spring and button, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened.
Page 80 4. Rotate the battery release button counterclockwise, until it bows slightly, and lift it up to clear the hook on the computer base (Figure 3-33).
Page 81 5. To replace the battery release button and spring, reverse the previous steps. Chapter 3.9 Real-Time Clock Battery (Models 400 and 410) To remove the real-time clock battery, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 82 non conductive probe into the battery holder and pushing back on the battery to release it (Figure 3-34). NOTE: Refer to Chapter 2 "Preparing the Computer for Service" for battery disposal procedures. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Do not touch the bottom of the battery during replacement. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 83 The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened to a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2. Remove the keyboard assembly (Section 3.7). 3.
Page 84 Chapter 3.11 Processor Upgrade Option (Model 400 Only) This section provides installation and replacement procedures for the processor upgrade. The Compaq Contura 400 is the only model with the DX2/40 MHz Processor that can be upgraded to a DX2/50 MHz processor.
Page 85 4. To remove the processor upgrade, reverse the previous steps. Chapter 3.12 Integrated Mechanical Trackball Assembly (Models 400 and 410) IMPORTANT: The mechanical trackball assembly is not interchangeable with the optical trackball assembly in Models 420 and 430. To remove the integrated mechanical trackball assembly, follow these steps: 1.
Page 86 2. Remove the keyboard assembly (Section 3.7). 3. Using a Torx T-8 or flat-bladed screwdriver, remove the screw from the front right-hand corner of the integrated mechanical trackball assembly (Figure 3-37). 4. Disconnect the integrated mechanical trackball assembly from the system board by pulling forward on the integrated mechanical trackball assembly until it stops.
Page 87 6. To replace the integrated mechanical trackball assembly, reverse the previous steps. Trackball Cleaning Procedures 1. Turn off the computer by pressing the left Ctrl+Alt keys and the power button. Disconnect the AC power and remove the battery pack. 2. Loosen the trackball retaining ring by placing the trackball tool over the retaining ring and turning the tool counterclockwise one quarter turn.
Page 88 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 5. Clean the trackball with isopropyl (rubbing) alcohol only. Dry it with a clean, lint-free cloth. DO NOT USE AN ABRASIVE CLEANER. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< If a foam-tipped swap is not available, you can use a cotton swab. But use a cotton swap only once and then discard it as it may scratch the trackball.
Page 89 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2. Remove the keyboard assembly (Section 3.7). 3. Using a Torx T-8 or flat-bladed screwdriver, remove the screw from the front right-hand corner and the left rear corner of the trackball assembly (Figure 3-39). 4. Disconnect the integrated optical trackball assembly from the system board by pulling upward on the trackball assembly.
Page 90 5. To replace the integrated mechanical trackball assembly, reverse the previous steps. Trackball Cleaning Procedures 1. Turn off the computer, disconnect AC power, and remove the battery pack. 2. Remove the Integrated trackball. 3. Remove any large particles of debris that have fallen into the trackball housing.
Page 91 7. Replace the battery pack and reconnect the AC power. Chapter 3.14 Diskette Drive (All Models) This section contains removal and replacement procedures for the following diskette drive components: o Diskette Drive o Diskette Drive Bracket o Diskette Drive Insulator Strip Removing the Diskette Drive To remove the diskette drive, follow these steps: 1.
Page 92 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Screws in the computer are not interchangeable. As you remove screws, place them with the components you removed. Damage may occur if you insert the screws in the wrong place. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Using a Torx T-8 or flat-bladed screwdriver, remove the three diskette drive bracket screws that screw into the system board (Figure 3-42).
Page 93 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When removing or replacing the diskette drive, hold it by grasping the vertical sides. Pressure to the front drive door area of the diskette drive will cause the drive door to pop out from the mounting. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 5.
Page 94 Removing the Diskette Drive from the Diskette Drive Bracket 1. Remove the diskette drive from the system chassis. Refer to "Removing the Diskette Drive" in this section. 2. Remove the diskette drive from the bracket by removing the four screws from both sides of the bracket (Figure 3-44).
Page 95 3. Separate the diskette drive from the bracket (Figure 3-45).
Page 96 4. To replace the diskette drive into the bracket, reverse the previous steps. Applying the Diskette Drive Hook and Loop Fastener If installing a new diskette drive bracket, the hook and loop fastener must be attached to the bracket. To attach the hook and loop fastener, follow these steps: 1.
Page 97 Replacing the Diskette Drive To replace the diskette drive into the system chassis, follow these steps: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When removing or replacing the diskette drive, hold it by grasping the vertical sides. Pressure to the front drive door area of the diskette drive will cause the drive door to pop out from the mounting.
Page 98 4. Reconnect the Diskette Drive Cable and reinstall the three screws. Chapter 3.15 The System Board (All Models) To remove the system board, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2.
Page 99 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened at a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 6.
Page 100 10. Disconnect the display cable from the system board by pulling up both ends of the ZIF connector slide simultaneously [1], carefully opening the slide [2] (Figure 3-49). 11. Lift the display cable out of the connector slide [3], being careful not to pull or twist the cable (Figure 3-49).
Page 101 13. Remove the three keyboard ground clips from the system board (Figure 3-51).
Page 102 14. Remove the left clutch ground clip from the system chassis (Figure 3-52).
Page 103 15. For Models 400 and 410, using a Torx T8 or slotted driver, remove the five screws from the system board and the two screws from the battery contact (Figure 3-53).
Page 104 16. For Models 420 and 430, using a Torx T8 or slotted driver, remove the four screws from the system board and the two screws from the battery contact (Figure 3-54).
Page 105 17. From the front of the computer, tilt the system board up then lift the system board out of the system chassis (Figure 3-55).
Page 106 18. Remove the LIF clip from above the serial port connector between the system board and the system chassis (Figure 3-56).
Page 107 19. To replace the system board, reverse the previous steps. To replace the System Board, follow these steps: IMPORTANT: When installing a new system board, make sure that the insulator is placed between the system board and the diskette drive. The gasket over the Keyboard connector must be tucked under the Chassis.
Page 108 2. Install screws [1] and [2] on the system board before replacing the remaining system board and battery contact screws for Models 400 and 410 (Figure 3-58) and for Models 420 and 430 (Figure 3-59).
Page 110 NOTE: If installing a new system board, ensure that the insulator is installed between the system board and diskette drive. The gasket over the keyboard connector must be tucked under the Chassis. Chapter 3.16 PC Card (PCMCIA) Assembly The PC Card assembly consists of the PC Card clip and PC Card rails. To remove the PC Card assembly or to remove part of the assembly, follow these steps: Removing the PC Card Clip...
Page 111 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2. Remove the keyboard assembly (Section 3.7). 3. Remove the system board (Section 3.15). 4. Remove the two screws [1] of the PC Card rails from the bottom of the system board (Figure 3-60). 5. Loosen the Header screws [2] from the bottom of the system board. (Figure 3-60).
Page 112 rails are assembled properly into the PC Card Header. The rail goes under the edge of the header. Tighten the header screws from the bottom of the system board. Removing the PC Card (PCMCIA) Rails NOTE: The rails for the 400 and 410 models are not interchangeable with the rails for the 420 and 430 models.
Page 113 This section contains removal and replacement procedures for the PC Card ejection levers and pin. To remove the PC Card ejection levers and pin, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 114 4. Remove the bottom PC Card ejection lever from the boss on the CPU base (Figure 3-64)
Page 115 5. To replace the PC Card ejection levers and pin, reverse the previous steps. Chapter 3.18 PC Card (PCMCIA) Doors and Springs This section contains removal and replacement procedures for the PC Card doors and springs. The top PC Card door and spring are located on the keyboard assembly and the bottom PC Card door and spring are located on the CPU base.
Page 116 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2. Remove the keyboard assembly (Section 3.7). 3. Unsnap the PC Card door [1] from the post and remove the door (Figure 3-65). 4. Remove the spring [2] from the PC Card door (Figure 3-65). To replace the top PC Card (PCMCIA) door and spring, follow these steps: 1.
Page 117 2. Install the PC Card door, making sure the spring is placed between the notch [1] and the rib [2] (Figure 3-67).
Page 118 Bottom PC Card (PCMCIA) Door and Spring The bottom PC Card door and spring are located on the CPU base. To remove the bottom PC Card door and spring, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 119 To replace the bottom PC Card (PCMCIA) spring and door, follow these steps: 1. Install the PC Card spring on the door post, making sure the bent arm of the spring is placed against the rib on the PC Card door (Figure 3-69).
Page 120 2. Install the PC Card door, making sure the spring is placed between the notch [1] and the rib [2] (Figure 3-70).
Page 121 Chapter 3.19 System Chassis (All Models) To remove the system chassis, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Remove the handle bracket on either side of the computer (Section 3.3). 3.
Page 122 7. Remove the four clutch screws from the rear of the system unit module (Figure 3-71). 8. Remove the display assembly from the system unit module (Figure 3-72).
Page 123 9. Slide the trough at the rear of the CPU base to the right, then lift up to remove (Figure 3-73).
Page 124 10. Remove the system chassis by gently separating it from the CPU base and lifting out the system chassis (Figure 3-74).
Page 125 11. To replace the system chassis, reverse the previous steps. Chapter 3.20 CPU Base (All Models) This section provides removal and replacement procedures for the following CPU base components: o Battery shield clip o Lock provision plate o Anti-skid pads Removing and Replacing the Battery Shield Clip To remove the battery shield clip, follow these steps: 1.
Page 126 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened at a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2.
Page 127 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The computer becomes top heavy when the keyboard assembly is removed and the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened at a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 2.
Page 128 1. Peel off the top layer of one of the anti-skid pads to expose the adhesive. 2. With the adhesive-side down, place the anti-skid pad into the raised oval outline on the CPU base and the battery tray (Figure 3-77). Chapter 3.21 Display Assembly Components (Models 400 and 410) This section contains removal and replacement procedures for the following display assembly components:...
Page 129 serious injury or damage to the equipment. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To remove the display bezel, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Open the computer. 3. Remove the four screws from the display bezel (Figure 3-78). 4.
Page 130 5. To replace the bezel, reverse the previous steps. Removing the Display Enclosure Latches and Springs To remove the display enclosure latches and springs from either side of the display enclosure, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 131 6. Remove the display latch spring from the latch (Figure 3-81).
Page 132 Replacing the Display Enclosure Springs and Latches To replace the display springs and latches, follow these steps: 1. Hook the display latch spring on to the display latch [1] and place the display latch spring over the post in the display enclosure [2] (Figure 3-82).
Page 133 2. Slide the display latch into place on either side of the display enclosure (Figure 3-83).
Page 134 Removing the Display Inverter Board To remove the inverter board, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Open the computer. 3. Remove the display bezel. Refer to "Removing and Replacing the Display Bezel"...
Page 135 placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Lift up the inverter board until it clears the three posts on the display enclosure (Figure 3-84). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures.
Page 136 Replacing the Display Inverter Board To replace the inverter board, follow these steps: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures. Failure to disconnect power could result in serious injury or damage to the equipment.
Page 137 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 1. Insert the inverter board LIF connector into the display cable. 2. Plug in the backlight cable to the inverter board. 3. Mount the inverter board into the display enclosure, aligning the inverter board with the three mounting posts. Chapter 3.22 Monochrome Display (Models 400 and 410) IMPORTANT: The Monochrome, CSTN, and CTFT displays have different removal and replacement procedures.
Page 138 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Remove the display cable from the system board by pulling up both ends of the ZIF connector slide simultaneously [1], carefully opening the slide [2] (Figure 3-86). 5. Lift the display cable out of the connector slide [3], being careful not to pull or twist the cable (Figure 3-86).
Page 139 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the trough, ensure that the trough does not tilt forward into the CPU base when the bezel is removed. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 7. Remove the display bezel (Section 3.21). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Power must be disconnected before handling the Inverter Board >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 140 135-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 10. Open the display to its fully open position of 135-degrees (Figure 3-88). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 141 12. Carefully remove the Monochrome LCD panel, display cable, and shield from the display enclosure (Figure 3-90).
Page 142 13. Lay the Monochrome LCD panel face down on a clean surface. 14. Grasp the sides of the shield near the backlight cable. Flex the shield away from the Monochrome LCD panel. Ensure that the shield tabs and finger grips clear the LCD panel (Figure 3-91).
Page 143 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 15. Remove the display cable from the Monochrome LCD panel by pulling up both ends of the ZIF connector slide simultaneously [1], carefully opening the slide [2] (Figure 3-92) 16.
Page 144 17. Lift the display ground cable out of the display enclosure (Figure 3-93).
Page 145 Replacing the Display Ground Cable, the Display Cable, the Shield, and the Monochrome Panel To replace the display ground cable, the display cable, the shield, and the Monochrome LCD panel, follow these steps: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process.
Page 146 2. Replace the display cable on the monochrome LCD panel by carefully inserting the end of the display cable into the ZIF connector slide on the LCD panel (Figure 3-95). IMPORTANT: Ensure that the ZIF connector slide is in its fully upward position and that it remains so while you are inserting the cable into it.
Page 147 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Excess flexing and bending of the shield tabs and fingers can damage the shield. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Replace the display shield on the Monochrome LCD panel by slightly flexing the display shield tabs and fingers on the Monochrome LCD panel.
Page 148 5. Place the shield tabs in the indentations on the right side of the Monochrome LCD panel (Figure 3-97).
Page 149 6. Align the Monochrome LCD panel, shield, and cable in the display enclosure and replace the screws. Ensure that the ZIF connector end of the display cable and the end of the display ground cable are exposed at the bottom of the display enclosure (Figure 3-98).
Page 150 7. Connect the display cable and the backlight cable to the inverter board (Section 3.21). 8. Replace the inverter board (Section 3.21). 9. Replace the bezel (Section 3.21). 10. Connect the display ground cable [1] to the LIF clip above the serial port connector (Figure 3-99).
Page 151 12. While holding the end of the display cable inside the ZIF connector slide, press down both ends of the slide simultaneously to secure the cable in the ZIF connector (Figure 3-100).
Page 152 13. Ensure that the cable has been seated evenly and that the white line on the cable is level. 14. Replace the keyboard assembly (Section 3.7). Chapter 3.23 Color STN (9.5 inch) Display (Models 400 and 410) IMPORTANT: The Monochrome, CSTN and the CTFT displays have different removal and replacement procedures.
Page 153 Removing the CSTN (9.5 inch) Panel, Shield, Display Cable, and the Display Ground Cable To remove the liquid crystal display CSTN (9.5 inch) panel, the shield, the display cable and the display ground cable, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 154 6. Disconnect the display ground cable [1] from the LIF clip above the serial port connector (Figure 3-102).
Page 155 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the trough, ensure that the trough does not tilt forward into the CPU base when the bezel is removed. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 7. Remove the display bezel (Section 3.23). 8. Remove the inverter board (Section 3.23). 9.
Page 156 135-degrees (Figure 3-103). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 11. Remove the screws that secure the CSTN (9.5 inch) panel and the shield to the display enclosure (Figure 3-104).
Page 157 12. Carefully remove the CSTN (9.5 inch) panel, display cable, and shield from the display enclosure (Figure 3-105).
Page 158 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Excess flexing and bending of the shield tabs and fingers can damage the shield. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 13. On the right side of display shield, slide the two shield tabs from the face of the CSTN (9.5 inch) panel to the back (Figure 3-106).
Page 159 14. Lay the CSTN (9.5 inch) panel face down on a clean surface. 15. Slide the display shield off the CSTN (9.5 inch) panel (Figure 3-107).
Page 160 16. Disconnect the display cable from the connector on the back of the CSTN (9.5 inch) panel (Figure 3-108).
Page 161 17. Lift the display ground cable out of the display enclosure (Figure 3-109).
Page 162 Replacing the Display Ground Cable, Display Cable, Shield, and the CSTN (9.5 inch) Panel To replace the display ground cable, the display cable, the shield, and the CSTN (9.5 inch) panel, follow these steps: 1. Position the display ground cable in the display enclosure, aligning the cable with the bosses in the display enclosure (Figure 3-110).
Page 163 2. Connect the display cable to the connector on the back of the CSTN (9.5 inch) panel (Figure 3-111).
Page 164 3. Slightly lift the tabs on the left side of the display shield and slide the shield onto the CSTN (9.5 inch) panel. Ensure that the LIF connector end of the display cable is exposed on the right side of the CSTN (9.5 inch) panel (Figure 3-112).
Page 165 4. Place the display shield tabs in the indentations on the sides of the CSTN (9.5 inch) panel (Figure 3-113).
Page 166 5. Align the CSTN (9.5 inch) panel, display cable, and shield in the display enclosure and replace the screws. Ensure that the ZIF connector end of the display cable and the end of the display ground cable are exposed at the bottom of the display enclosure (Figure 3-114).
Page 167 6. Connect the display cable and the backlight cable to the inverter board (Section 3.23). 7. Replace the inverter board (Section 3.23). 8. Replace the bezel (Section 3.23). 9. Connect the display ground cable [1] from the LIF clip above the serial port connector (Figure 3-115).
Page 168 10. Carefully insert the end of the display cable into the ZIF connector slide on the system board. IMPORTANT: Ensure that the ZIF connector slide is in its fully upward position and that it remains so while you are inserting the cable into it.
Page 169 12. Ensure that the cable has been seated evenly and that the white line on the cable is level. 13. Replace the keyboard assembly (Section 3.7). Chapter 3.24 Color TFT (8.4 inch) Display (Models 400 and 410) IMPORTANT: The Monochrome, CSTN and the CTFT displays have different removal and replacement procedures.
Page 170 Removing the CTFT (8.4 inch) Liquid Crystal Display Panel To remove the CTFT (8.4 inch) panel, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Open the computer. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>...
Page 171 5. Remove the inverter board (Section 3.21). 6. Remove the display cable and backlight cable from the inverter board (Section 3.21). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit.
Page 172 8. Carefully rotate the CTFT (8.4 inch) panel down and out of the display enclosure, laying the CTFT (8.4 inch) panel gently on the keyboard assembly (Figure 3-119).
Page 173 9. Remove the display cable from the connector on the back of the panel by pulling the tabs at the back of the connector (Figure 3-120).
Page 174 Replacing the CTFT (8.4 inch) Display Panel To replace the CTFT (8.4 inch) panel, follow these steps: 1. Connect the display cable to the connector on the back of the CTFT (8.4 inch) panel (Figure 3-121).
Page 175 2. Position the CTFT (8.4 inch) panel into the display enclosure, ensuring that the ZIF connector end of the display cable is exposed on the right side of the CTFT (8.4 inch) panel (Figure 3-122).
Page 176 3. Secure the CTFT (8.4 inch) panel with four screws to the display enclosure. Removing the CTFT (8.4 inch) Display Cable To remove the CTFT (8.4 inch) display cable, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 177 The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector. Never pull or twist the cable itself while it is seated in the ZIF connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Remove the display cable from the system board by pulling up both ends of the ZIF connector slide simultaneously [1], carefully opening the slide [2] (Figure 3-123).
Page 178 The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector. Never pull or twist the cable itself while it is seated in the ZIF connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 8. Remove the display cable and backlight cable from the inverter board (Section 3.21).
Page 179 7. Ensure that the cable has been seated evenly and that the white line on the cable is level. 8. Replace the keyboard assembly (Section 3.7). Removing and Replacing the CTFT (8.4 inch) Display Shield To remove the CTFT (8.4 inch) display shield, follow these steps: 1.
Page 180 4. Remove the inverter board (Section 3.21). 5. Remove the display cable and backlight cable from the inverter board (Section 3.21). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit.
Page 181 9. To replace the display shield, reverse the previous steps. Removing and Replacing the Display Ground Cable To remove the display ground cable, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2.
Page 182 5. Remove the display cable and backlight cable from the inverter board (Section 3.21). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 183 11. To replace the display ground cable, reverse the previous steps. Chapter 3.25 Display Components (Models 420 and 430) This section contains removal and replacement procedures for the following display assembly components: o Bezel o Latches o Inverter board Removing and Replacing the Display Bezel To remove the display bezel, follow these steps: 1.
Page 184 2. Open the computer. 3. Remove the four screws from the display bezel (Figure 3-129). 4. Separate the display bezel from the display assembly (Figure 3-130).
Page 185 5. To replace the bezel, reverse the previous steps. Removing the Display Enclosure Latches and Springs To remove the display enclosure latches and springs from either side of the display enclosure, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 186 6. Remove the display latch spring from the latch (Figure 3-132).
Page 187 Replacing the Display Enclosure Springs and Latches To replace the display springs and latches, follow these steps: 1. Hook the display latch spring on to the display latch [1] and place the display latch spring over the post in the display enclosure [2] (Figure 3-133).
Page 188 2. Slide the display latch into place on either side of the display enclosure (Figure 3-134).
Page 189 Removing the Display Inverter Board for the CSTN (10.4 inch) Display >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures. Failure to disconnect power could result in serious injury or damage to the equipment.
Page 190 location to avoid pinching during the reassembly process. Improper cable placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Lift up the inverter board until it clears the three posts on the display enclosure (Figure 3-135). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures.
Page 191 the ground wire which is attached to the inverter board. Removing the Display Inverter Board for the CTFT (10.4 inch) Display >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures.
Page 192 To remove the inverter board for the CTFT (10.4 inch) Display, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Open the computer. 3. Remove the display bezel. Refer to "Removing and Replacing the Display Bezel"...
Page 193 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures. Failure to disconnect power could result in serious injury or damage to the equipment. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 194 Replacing the Display Inverter Board To replace the inverter board, follow these steps: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Ensure that the power cord is disconnected from the electrical outlet and that the battery pack is removed from the computer before beginning replacement procedures. Failure to disconnect power could result in serious injury or damage to the equipment.
Page 195: Chapter 3.2 Color Stn (10.4 Inch) Display (Models 420 And 430)
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 1. Insert the inverter board LIF connector into the display cable. 2. Plug in the backlight cable to the inverter board. 3. Mount the inverter board into the display enclosure, aligning the inverter board with the three mounting posts. 4.
Page 196 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector. Never pull or twist the cable itself while it is seated in the ZIF connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4.
Page 197 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the trough, ensure that the trough does not tilt forward into the CPU base when the bezel is removed. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 7. Remove the display bezel (Section 3.25). 8. Remove the inverter board (Section 3.25). 9.
Page 198 135-degrees (Figure 3-142). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 11. Remove the screws that secure the CSTN (10.4 inch) panel and the shield to the display enclosure (Figure 3-143).
Page 199 12. Carefully remove the CSTN (10.4 inch) panel, display cable, and shield from the display enclosure (Figure 3-144).
Page 200 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Excess flexing and bending of the shield tabs and fingers can damage the shield. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 13. On the right side of display shield, slide the two shield tabs from the face of the CSTN (10.4 inch) panel to the back (Figure 3-145).
Page 201 14. Lay the CSTN (10.4 inch) panel face down on a clean surface. 15. Slide the display shield off the CSTN panel (Figure 3-146).
Page 202 16. Only Sharp panels require the XOVER Board. Remove the ground wire connecting the XOVER Board with the CSTN (10.4 inch) Panel (Figure 3-147).
Page 203 17. Disconnect the display cable from the connector on the back of the CSTN (10.4 inch) panel (Figure 3-148).
Page 204 17. Lift the display ground cable out of the display enclosure (Figure 3-149).
Page 205 Replacing the Display Ground Cable, Display Cable, Shield, and the CSTN (10.4 inch) Panel To replace the display ground cable, display cable, shield, and the CSTN (10.4 inch) panel, follow these steps:...
Page 206 1. Position the display ground cable in the display enclosure, aligning the cable with the bosses in the display enclosure (Figure 3-151). 2. If the CSTN panel is manufactured by Sharp complete this step. If not, continue to step 4. Connect the display cable to the XOVER Board. Then connect the XOVER Board to the connector on the back of the CSTN (10.4 in) panel.
Page 207 3. If the CSTN panel is manufactured by Sharp complete this step. If not, continue to the next step. Peel off the adhesive from the back of the rubber pad found in the spare kit. Place this pad on the display enclosure indicated by the embossed area (Figure 3-152).
Page 208 4. Slightly lift the tabs on the left side of the display shield and slide the shield onto the CSTN (10.4 inch) panel. Ensure that the LIF connector end of the display cable is exposed on the right side of the CSTN (10.4 inch) panel (Figure 3-153).
Page 209 5. Place the display shield tabs in the indentations on the sides of the CSTN (10.4 in) panel (Figure 3-154).
Page 210 6. Align the CSTN (10.4 inch) panel, display cable, and shield in the display enclosure and replace the screws. Ensure that the ZIF connector end of the display cable and the end of the display ground cable are exposed at the bottom of the display enclosure (Figure 3-155).
Page 211 7. Connect the display cable and the backlight cable to the inverter board (Section 3.25). 8. Replace the inverter board (Section 3.25). 9. Replace the bezel (Section 3.25). 10. Connect the display ground cable [1] from the LIF clip above the serial port connector (Figure 3-156).
Page 212 11. Carefully insert the end of the display ground cable into the ZIF connector slide on the system board. IMPORTANT: Ensure that the ZIF connector slide is in its fully upward position and that it remains so while you are inserting the cable into it.
Page 213 13. Ensure that the cable has been seated evenly and that the white line on the cable is level. 14. Replace the keyboard assembly (Section 3.7). Chapter 3.27 Color TFT (10.4 inch) Display (Models 420 and 430) IMPORTANT: The Monochrome, CSTN and the CTFT displays have different removal and replacement procedures.
Page 214 Removing the CTFT Display Panel To remove the CTFT (10.4 inch) panel, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2. Open the computer. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the trough, ensure that the trough does not tilt forward into the CPU base when the bezel is removed.
Page 215 NOTE: The CTFT (10.4 inch) display is different than all other displays. The inverter board fits partially behind the display. Loosen the screws on the display to slide the inverter out from behind the display. 5. Remove the inverter board (Section 3.25). 6.
Page 216 8. Carefully rotate the CTFT (10.4 inch) panel down and out of the display enclosure, laying the CTFT (10.4 inch) panel gently on the keyboard assembly (Figure 3-160).
Page 217 9. Remove the display cable from the connector on the back of the panel (Figure 3-161).
Page 218 10. The CTFT Display Cable is disconnected by pulling upward on the tabs on the back of the Connector. Replacing the CTFT (10.4 inch) Display Panel >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process.
Page 219 2. Position the CTFT (10.4 inch) panel into the display enclosure, ensuring that the ZIF connector end of the display cable is exposed on the right side of the CTFT (10.4 inch) panel (Figure 3-163).
Page 220 3. Secure the CTFT (10.4 inch) panel with four screws to the display enclosure. Removing the CTFT (10.4 inch) Display Cable To remove the CTFT (10.4 inch) display cable, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 221 The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector. Never pull or twist the cable itself while it is seated in the ZIF connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the trough, ensure that the trough does not tilt forward into the CPU base when the bezel is removed >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 222 The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector. Never pull or twist the cable itself while it is seated in the ZIF connector. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 8. Remove the display cable and backlight cable from the inverter board (Section 3.25).
Page 223 7. Ensure that the cable has been seated evenly and that the white line on the cable is level. 8. Replace the keyboard assembly (Section 3.7). Removing and Replacing the CTFT (10.4 inch) Display Shield To remove the CTFT (10.4 inch) display shield, follow these steps: 1.
Page 224 4. Remove the inverter board (Section 3.25). 5. Remove the display cable and backlight cable from the inverter board (Section 3.25). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit.
Page 225 9. To replace the display shield, reverse the previous steps. Removing and Replacing the Display Ground Cable To remove the display ground cable, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2.
Page 226 5. Remove the display cable and backlight cable from the inverter board (Section 3.25). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< When servicing the computer, ensure that cables are placed in their proper location to avoid pinching during the reassembly process. placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<...
Page 227: Chapter 3.28 Display Enclosure
11. To replace the display ground cable, reverse the previous steps. Chapter 3.28 Display Enclosure This section provides replacement procedures for the display enclosure. Replacing the Display Enclosure To replace the display enclosure, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2).
Page 228 the display is opened. To prevent damage to the display and the computer, ensure that the display assembly is opened at a 90-degree angle. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 4. Remove the keyboard assembly (Section 3.7). 5. Remove the right clutch ground clip located between the clutch and the CPU base.
Page 229 8. Disconnect the display ground cable [1] from the LIF clip (Figure 3-172).
Page 230 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< To prevent damage to the display assembly while the keyboard assembly is removed from the system unit module, use care when closing the display. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 9. Gently lower the display. 10. Using a Torx T8 or slotted driver, remove the four clutch screws from the rear panel of the computer (Figure 3-173).
Page 231 11. Lift the display assembly off the system unit module (Figure 3-174).
Page 232 12. Position the display assembly top-side up. 13. Remove the display bezel (Section 3.25). 14. Remove the display latches and springs (Section 3.25). 15. Remove the inverter board (Section 3.21). >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< The ZIF connector and its attached cable can be damaged easily. Handle only the connector slide when disconnecting the ZIF connector.
Page 233 placement can cause severe damage to the unit. >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 17. Remove the LCD panel, the display cable, the shield, and the display ground cable from the display enclosure as follows: - If removing a Monochrome panel and shield, refer to Section 3.22. - If removing a CSTN (9.5 in) panel and shield, refer to Section 3.23.
Page 234 21. Replace the display ground cable, the LCD panel, the shield, and the display cable into the display enclosure as follows: - If replacing a Monochrome panel and shield, refer to Section 3.22. - If removing a CSTN (9.5 in) panel and shield, refer to Section 3.23. - If removing a CTFT (8.4 in) panel and shield, refer to Section 3.24.
Page 235 27. Align the clutches with the system unit module, ensuring that the display ground cable and the display cable are positioned on top of the system unit module (Figure 3-178).
Page 236 28. Replace the four rear clutch screws (Figure 3-179).
Page 237 29. Open the display to a 90-degree angle (Figure 3-180).
Page 238 30. Connect the display ground cable [1] to the LIF clip above the serial port connector between the system board and the system chassis (Figure 3-181).
Page 239 31. Carefully insert the end of the cable into the ZIF connector slide on the system unit. IMPORTANT: Ensure that the ZIF connector slide is in its fully upward position and that it remains so while you are inserting the cable into it.
Page 240 33. Ensure that the cable has been seated evenly and that the white line on the cable is level. 34. Replace the right clutch ground clip located between the clutch and the CPU base. The right clutch clip for Models 420 and 430 is different and is illustrated in the insert Figure 3-183).
Page 241 35. Replace the keyboard assembly (Section 3.7). 36. Replace the tilt feet (Section 3.4). 37. Replace the handle bracket (Section 3.3). Chapter 3.29 Clutches and Ground Clips This section contains removal and replacement procedures for the clutch ground clips located between the system chassis and CPU base, and for the clutches that join the system unit module and the display enclosure.
Page 242 4. Remove the right clutch ground clip located between the clutch and the CPU base. The right clutch clip for Models 420 and 430 is different and is illustrated in the insert (Figure 3-185).
Page 243 5. To replace the clutch ground clips, reverse the previous steps. Removing and Replacing the Clutches To remove the clutches, follow these steps: 1. Disconnect all power from the computer and remove the AC Adapter and battery pack (Section 3.2). 2.
Page 244 5. Remove the left and right clutch ground clips (see "Removing and Replacing Clutch Ground Clips" in this section). 6. Pull up both ends of the ZIF connector slide simultaneously [1], carefully opening the slide [2] (Figure 3-186). 7. Lift the display cable out of the connector slide [3], being careful not to pull or twist the cable (Figure 3-186).
Page 245 9. Using a Torx T8 or slotted driver, remove the four clutch screws on the rear of the system unit module (Figure 3-188).
Page 246 10. Lift the display assembly off the system unit module (Figure 3-189).
Page 247 11. Place the display assembly top-side up. 12. Remove the display bezel (Section 3.21). 13. Remove the screws from the clutches on either side of the display enclosure. 14. On either side of the display enclosure, slide the clutches from underneath the display shield tabs (Figure 3-190).
Page 248 15. Slide the clutches out of the display enclosure. 16. To replace the clutches, reverse the previous steps. IMPORTANT: When replacing the display clutch screws, ensure proper alignment of the display clutches on either side of the display enclosure with the shield (Figure 3-191).
Page 249 Chapter 3.30 Docking Base This section contains removal procedures for the following docking base components: o Battery Door o Feet o Handle Removing the Battery Door To remove the battery door, follow these steps: 1. Open the battery door until it is perpendicular to the docking base (Figure 3-192).
Page 250 2. Hold the door upright, applying pressure to the door at the base of the front hinge [1]. This creates a pivot point [2] to rotate the door out of the base (Figure 3-193). 3. Flex the front end of the door until the retaining pin [3] clears the hinge slot on the docking base (Figure 3-193).
Page 251 4. Remove the battery door from the docking base (Figure 3-194).
Page 252 5. To replace the battery door, reverse the previous steps. Replacing the Docking Base Feet To replace the docking base feet, follow these steps: 1. Remove the top layer from the foot to expose the adhesive strip (Figure 3-195). 2. Place the foot adhesive-side down into the circular indentation on the bottom of the docking base (Figure 3-195).
Page 253 Replacing the Handle To replace the docking base handle, follow these steps: 1. Using a Torx T8, remove the screw from the rear of the handle (Figure 3-196).
Page 254 2. Slide the handle off the crankshaft (Figure 3-197).
Page 255 3. Slide the new handle on the crankshaft until the handle seats. 4. To secure the new handle to the crankshaft, replace the screw behind the handle. Chapter 3.31 Monitor Support Cover This section contains replacement procedures for the foot on the monitor support cover.
Page 257 Chapter 4. Running POST and Test Introduction This chapter covers troubleshooting information for the computer. The basic steps in troubleshooting include: 1. Follow the preliminary steps listed in Section 4.1. 2. Run the Power-On Self-Test (POST) as described in Section 4.2. 3.
Page 258 5. Disconnect any external devices that you do not want to test. (Do not disconnect the printer if you want to test it or use it to log error messages.) 6. Install loopback and terminating plugs in the serial and parallel connectors if you would like to test these ports.
Page 259: Chapter 4.2 Power-On Self-Test (Post)
9. Connect the power cord (Section 3.2). 10. Connect the power cord to the external outlet. 11. Turn on the computer by pressing the power button. 12. Verify that the power-on password has been cleared. If it has not been cleared, repeat steps 1 through 7.
Page 260: Chapter 4.3 Computer Checkup (Test)
boots from the hard drive (or from a bootable diskette if installed in the diskette drive). However, diskette drive may be disabled, and the computer cannot boot from the diskette drive. - If POST detects errors, the errors are indicated by screen and/or audible messages.
Page 261 5. Select the option to view the device list. A list of the installed hardware devices is displayed. NOTE: Computer Checkup does not detect all non-Compaq devices. 6. Verify that Computer Checkup correctly detected the installed devices. If the list is correct, select OK. The Computer Checkup option menu is displayed again.
Page 262 help identify possible defective assemblies. Tables 5-2 through 5-13 list Computer Checkup error codes, a description of the error condition, and the recommended action for resolving the condition. For removal and replacement procedures, refer to Chapter 3. IMPORTANT: Rerun Computer Checkup each time you complete a recommended action step.
Page 263: Chapter 5. Error Messages And Codes
Chapter 5. Error Messages and Codes Introduction This chapter provides tables covering possible errors messages for the Power-On Self-Test (POST) and the Computer Checkup (TEST) diagnostics. Chapter 5.1 Power-On Self-Test (POST) POST error messages occur when problems are discovered during POST. 5-1 lists visual error messages for POST, audible (beep) error messages, probable causes, and recommended actions.
Page 264 --------------------------------------------------------------------------- Message Beeps --------------------------------------------------------------------------- 168 - CMOS CheckSUM Invalid --------------------------------------------------------------------------- 201 - Memory None Error --------------------------------------------------------------------------- 203 - Memory None Address Error --------------------------------------------------------------------------- 205 - Memory None Error --------------------------------------------------------------------------- 207 - None Invalid Memory Configuration Module --------------------------------------------------------------------------- 209 - NCA RAM None Error ---------------------------------------------------------------------------...
Page 265 Keyboard Error or Text Fixture Installed --------------------------------------------------------------------------- 303 - None Keyboard Controller Error --------------------------------------------------------------------------- 304 - Keyboard None or System Unit Error --------------------------------------------------------------------------- 401 - Printer None Error --------------------------------------------------------------------------- 402 - 1 Long, Monochrome 2 Short Adapter Failure --------------------------------------------------------------------------- 501 - Display 1 Long, Adapter 2 Short...
Page 266 Been Detected by POST --------------------------------------------------------------------------- 1125 - 2 Short Internal Serial Port Failure --------------------------------------------------------------------------- 1780 - Disk 0 None Failure --------------------------------------------------------------------------- 1782 - Disk None Controller --------------------------------------------------------------------------- 1790- Disk 0 None Failure --------------------------------------------------------------------------- Audible 1 Short --------------------------------------------------------------------------- Audible 2 Short --------------------------------------------------------------------------- (RESUME = F1 None...
Page 267 103 - xx DMA page registers test failed 104 - xx Interrupt controller master test failed 105 - xx Port 61 error 106 - xx Keyboard controller self-test failed 107 - xx CMOS RAM test failed 108 - xx CMOS interrupt test failed 109 - xx CMOS clock load data test failed...
Page 268 204 - xx Memory address test failed 206 - xx Increment pattern test failed 210 - xx Random pattern test failed =========================================================================== Table 5-4. Keyboard Computer Checkup Error Codes =========================================================================== Error Code Description =========================================================================== 301 - xx Keyboard short test 8042 self-test failed --------------------------------------------------------------------------- 302 - xx...
Page 269 connected =========================================================================== Table 5-6. Diskette Drive Computer Checkup Error Codes =========================================================================== Error Code Description =========================================================================== 600 - xx Diskette ID drive types test failed 601 - xx Diskette format failed 602 - xx Diskette read test failed 603 - xx Diskette write, read, compare test failed 604 - xx...
Page 270 Test 1202 - xx Modem Timeout Test 1203 - xx Modem External Termination Test 1204 - xx Modem Auto Originate Test 1206 - xx Dial Multifrequency Tone Test 1210 - xx Modem Direct Connect Test =========================================================================== Table 5-9. Hard Drive Computer Checkup Error Codes =========================================================================== Error Code Description...
Page 271 1716 - xx Hard drive conditional format test failed 1717 - xx Hard drive ECC * test failed 1719 - x Hard drive power mode test failed 1799 - xx Invalid hard drive type failed --------------------------------------------------------------------------- Error Correction Code =========================================================================== Table 5-10.
Page 272 2419 - xx ECG/VGC ROM checksum test failed 2421 - xx ECG/VGC 640 x 200 graphics mode test failed --------------------------------------------------------------------------- Error Code Description --------------------------------------------------------------------------- 2422 - xx ECG/VGC 640 x 350 16 color set test failed 2423 - xx ECG/VGC 640 x 350 64 color set test failed 2424 - xx ECG/VGC monochrome text...
Page 273 =========================================================================== Chapter 5.3 Troubleshooting without Error Messages This section contains troubleshooting information that provides a quick reference for diagnosing problems that cannot be identified by running POST or Computer Checkup (such as a non-functional display that does not allow viewing error messages). tables 5-12 through 5-27 in Section 5.3.
Page 274 --------------------------------------------------------------------------- Computer is beeping and battery indicator is flashing. --------------------------------------------------------------------------- Problem --------------------------------------------------------------------------- Computer turned off while left unattended. Power indicator is off. --------------------------------------------------------------------------- The computer has no power at all when the power switch is activated. All indicators are off. the other indicators come on for any period of time (even for a...
Page 275 --------------------------------------------------------------------------- Problem --------------------------------------------------------------------------- The computer has a crowbar condition: it powers up for a short period, then shuts off. indicators flash on, then off (this takes place in less than 3 seconds). ------------------------------------------------ Battery contacts Remove the keyboard not making good assembly and examine the contact with battery contacts.
Page 276 =========================================================================== Table 5-13. Solving System Start Problems =========================================================================== Problem =========================================================================== System powers up (LEDs on) but it does not begin POST. =========================================================================== Table 5-14. Solving Standby Problems =========================================================================== Problem =========================================================================== The power/standby button is pressed, but the unit does not go into standby.
Page 277 --------------------------------------------------------------------------- Battery charge does not last as long as expected. --------------------------------------------------------------------------- Battery pack is warm to the touch after charging. --------------------------------------------------------------------------- Battery indicator does not come on and the battery gauge does not reflect a change in battery charge level. --------------------------------------------------------------------------- exposed to pack to return to room...
Page 278 * The recommended storage temperature range for the battery pack is -4oF to 86oF (-20oC to 30oC ). The recommended operating temperature range is 50oF to 104oF (10oC to 40oC). =========================================================================== Table 5-16. Solving Battery Gauge Problems =========================================================================== Problem Probable Cause =========================================================================== Battery gauge appears Battery pack has been...
Page 279 lack of user activity. --------------------------------------------------- Brightness and contrast needs adjusting. --------------------------------------------------- Display has overheated. --------------------------------------------------------------------------- Display is blank and System is in Standby. the Power/standby indicator is flashing. --------------------------------------------------------------------------- Problem Probable Cause --------------------------------------------------------------------------- Screen is blank, the System has entered a Power/standby low battery Standby indicator is...
Page 280 Distorted or garbled The ANSI.SYS driver characters on the is not in the display are mixed CONFIG.SYS file or with text. the path is incorrect. --------------------------------------------------------------------------- Computer display Using 800 x 600 or flashes or has higher resolution on garbled characters external monitor and when computer is have toggled back to...
Page 281 light up at all and Power-On-Self-Test (POST) does not complete when the unit is powered up. **** --------------------------------------------------------------------------- ** When using an external monitor and simultaneously displaying an image on the internal display, the image on the external monitor may not fill the screen.
Page 282 "jailbars" pattern), has a single color on it, or has garbled graphics across the --------------------------------------------------- entire panel. This Defective display failure is for cable patterns across the --------------------------------------------------- entire panel (not Defective inverter just on one section). board. --------------------------------------------------- Defective system board.
Page 283 =========================================================================== Diskette drive Diskette is damaged. indicator stays on. --------------------------------------------------- Software program is damaged. --------------------------------------------------------------------------- Diskette drive cannot Diskette is write to a diskette. write-protected. --------------------------------------------------- Computer is writing to the wrong drive. --------------------------------------------------- Drive error has occurred. --------------------------------------------------- Diskette is not formatted.
Page 284 on, in Standby, or in Hibernation. =========================================================================== Table 5-20. Solving External Device Installation Problems =========================================================================== Problem Probable Cause =========================================================================== A new device is not Computer Setup has recognized as part of not been run to the computer system. configure the new device.
Page 285 --------------------------------------------------------------------------- Trackball or mouse Mouse device driver does not work even is not activated though the device (loaded into memory) driver is in the in MS-DOS. PATH command of the AUTOEXEC.BAT file. --------------------------------------------------- Defective trackball assembly. --------------------------------------------------- Defective system board. --------------------------------------------------- Mouse device driver is not correctly...
Page 286 When turned on, the Card is not inserted computer does not properly. beep when a PC Card is inserted. --------------------------------------------------- PC Card beeps are disabled. --------------------------------------------------- Warning beeps are turned off. --------------------------------------------------- PC Card drivers are not loaded. --------------------------------------------------- The PC Card slot is disabled.
Page 287 --------------------------------------------------- The card conflicts with the system board serial device. --------------------------------------------------- The card is not PC Card compliant. --------------------------------------------------------------------------- Modem or network PC Network driver is not Card does not work. set up properly. --------------------------------------------------------------------------- Storage PC Card does SRAM and flash not work.
Page 288 -------------------------------------------------- The card is not formatted. ------------------------------------------------- The card is not supported. =========================================================================== Table 5-25. Solving Printer Problems * =========================================================================== Problem Probable Cause =========================================================================== Printer does not The device drivers print. for the application are not installed. --------------------------------------------------- Printer that is set up for a network is not connected to the network.
Page 289 Table 5-26. Solving Software Application Problems =========================================================================== Problem Probable Cause =========================================================================== Cannot use an The application has application. not been added to the PATH statement. --------------------------------------------------------------------------- Application fails or A conflict exists does not work between applications. properly. --------------------------------------------------------------------------- Insufficient memory Too many TSRs are to run application.
Page 290: Chapter 5.5 Shipping Preparation
o Type of printer connected o Hardware/software being used o Printed results of Computer Checkup (TEST) and View System Information (INSPECT), if possible o Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible Chapter 5.5 Shipping Preparation To ship the computer, complete the following steps: 1.
Page 291: Chapter 6. Specifications
Chapter 6. Specifications Introduction This chapter provides physical, environmental, and performance specifications for the computer and its subassemblies including the following: o Monochrome STN display o Color STN and TFT displays o Hard drives o Diskette drive o NiMH battery pack o AC Adapter o Docking Base Chapter 6.1 Computer...
Page 292 --------------------------------------------------------------------------- Environmental Requirements Temperature: Operating Nonoperating Relative Humidity: (noncondensing) Operating Nonoperating Maximum Altitude: (nonpressurized) Operating Nonoperating --------------------------------------------------------------------------- Shock and Vibration Shock: Operating Nonoperating Vibration: Operating Nonoperating =========================================================================== Table 6-2. Computers Models 420 and 430 =========================================================================== =========================================================================== Dimensions (display size) Color STN (10.4 inch): Height Width Depth...
Page 293 Operating Nonoperating Maximum Altitude (unpressurized): Operating Nonoperating --------------------------------------------------------------------------- Shock and Vibration Shock: Operating Nonoperating Vibration: Operating Nonoperating =========================================================================== Chapter 6.2 Displays Table 6-3. Monochrome (9.5 inch) Display Models 400 and 410 =========================================================================== =========================================================================== Dimensions (display size): Height Width --------------------------------------------------------------------------- Mounting --------------------------------------------------------------------------- Gray Scales ---------------------------------------------------------------------------...
Page 294 =========================================================================== Table 6-4. Color STN (9.5 inch) Display Models 400 and 410 =========================================================================== =========================================================================== Dimensions (display size): Height Width --------------------------------------------------------------------------- Mounting --------------------------------------------------------------------------- Number of Colors --------------------------------------------------------------------------- Color Palette --------------------------------------------------------------------------- Contrast Ratio --------------------------------------------------------------------------- Brightness --------------------------------------------------------------------------- Pixel Size: Pitch Format Configuration --------------------------------------------------------------------------- Backlight --------------------------------------------------------------------------- Character Display...
Page 295 --------------------------------------------------------------------------- Pixel Size: Pitch Format Configuration --------------------------------------------------------------------------- Backlight --------------------------------------------------------------------------- Character Display --------------------------------------------------------------------------- Total Power Consumption --------------------------------------------------------------------------- Frequency: Horizontal Vertical --------------------------------------------------------------------------- Display Inverter Board: Input Voltage Output Voltage Maximum Input Power Maximum Output Power =========================================================================== Table 6-6. Color STN (10.4 inch) Display Models 420 and 430 =========================================================================== =========================================================================== Dimensions (Display Size):...
Page 296: Chapter 6.3 Hard Drives
Output Voltage Maximum Input Power Maximum Output Power =========================================================================== Table 6-7 Color TFT (10.4 inch) Display Models 420 and 430 =========================================================================== =========================================================================== Dimensions (display size): Height Width --------------------------------------------------------------------------- Mounting --------------------------------------------------------------------------- Number of Colors --------------------------------------------------------------------------- Color Palette --------------------------------------------------------------------------- Contrast Ratio --------------------------------------------------------------------------- Brightness --------------------------------------------------------------------------- Pixel Size:...
Page 297 Drive Type 65 (soft) --------------------------------------------------------------------------- Drive Height: With drive frame 12.7 mm --------------------------------------------------------------------------- Drive Size: Inches 2.5 x 0.5 Centimeters 6.3 x 1.3 --------------------------------------------------------------------------- Transfer Rate: Media (Mb/s) 21.07 to 35.9 Interface (MB/s) --------------------------------------------------------------------------- Sector Interleave --------------------------------------------------------------------------- Typical Seek Time (including settling): Single Track (ms) Average (ms)
Page 298: Chapter 6.4 Diskette Drive
Media (Mb/s) 19 to 33 Interface (MB/s) 11.1 --------------------------------------------------------------------------- Sector Interleave --------------------------------------------------------------------------- Typical Seek Time (including settling): Single Track (ms) Average (ms) 13.0 Full Stroke (ms) 21.0 --------------------------------------------------------------------------- Disk Rotational Speed 3600 rpm --------------------------------------------------------------------------- Physical Configuration: Cylinders 2393 Data Heads Sectors/Track 60 to 107 Bytes/Sector...
Page 299: Chapter 6.6 Ac Adapter
--------------------------------------------------------------------------- Rotational Speed --------------------------------------------------------------------------- Read/Write Heads --------------------------------------------------------------------------- Average Access Time (ms): Track-to-Track (high/low) Average (high/low) Settling Time (ms) Latency Average (ms) =========================================================================== Chapter 6.5 Nickel Metal Hydride (NiMH) Battery Pack Table 6-10. Battery Pack (All Models) =========================================================================== =========================================================================== Dimensions: Height Length Width ---------------------------------------------------------------------------...
Page 300 Height Depth Width --------------------------------------------------------------------------- Weight (without cords) --------------------------------------------------------------------------- Power Supply Ratings: Voltage Range Input Current Input Frequency Maximum Output Voltage Maximum Output Current Maximum Output Power Maximum Transient --------------------------------------------------------------------------- Minimum Charge Time =========================================================================== Chapter 6.7 Docking Base Table 6-12. Docking Base (All Models) =========================================================================== Without Monitor Support Cover...

Compaq Contura 400 Maintenance And Service Manual

Chapter 1.16 Ac Adapter and Power Cord

Chapter 2.1 Electrostatic Discharge

Chapter 3. Removal and Replacement Procedures

Chapter 4.2 Power-On Self-Test (POST)

Chapter 5. Error Messages and Codes

Chapter 6. Specifications

Quick Links

Summary of Contents for Compaq Contura 400

Page 29: Chapter 1.16 Ac Adapter And Power Cord

Page 36: Chapter 1.22 Documentation And Software

Page 39: Chapter 2.1 Electrostatic Discharge

Page 46: Chapter 3. Removal And Replacement Procedures

Page 48: Chapter 3.2 Preparing The Computer

Page 52: Chapter 3.3 Handle Bracket

Page 55: Chapter 3.5 Hard Drive

Page 60: Chapter 3.6 Memory Expansion Board

Page 64: Chapter 3.7 Keyboard Assembly

Page 195: Chapter 3.2 Color Stn (10.4 Inch) Display (Models 420 And 430)

Page 227: Chapter 3.28 Display Enclosure

Page 259: Chapter 4.2 Power-On Self-Test (Post)

Page 260: Chapter 4.3 Computer Checkup (Test)

Page 263: Chapter 5. Error Messages And Codes

Page 290: Chapter 5.5 Shipping Preparation

Page 291: Chapter 6. Specifications

Page 296: Chapter 6.3 Hard Drives

Page 298: Chapter 6.4 Diskette Drive

Page 299: Chapter 6.6 Ac Adapter

Compaq Contura 400 Maintenance And Service Manual

Chapter 1.16 Ac Adapter and Power Cord

Chapter 2.1 Electrostatic Discharge

Chapter 3. Removal and Replacement Procedures

Chapter 4.2 Power-On Self-Test (POST)

Chapter 5. Error Messages and Codes

Chapter 6. Specifications

Quick Links

Related Manuals for Compaq Contura 400

Summary of Contents for Compaq Contura 400

Table of Contents