Compaq Contura 400 User's Guide

Notice The information in this guide is subject to change without notice.Compaq Computer Corporation shall not be liable for technical or editorialerr

Chapter 1.4 Display Assembly Overview Display Assembly DescriptionThis section provides a description of the display assembly andcomponents.All displa

10. Disconnect the display cable from the system board by pulling up bothends of the ZIF connector slide simultaneously [1], carefully openingthe slid

13. Remove the three keyboard ground clips from the system board(Figure 3-51).

14. Remove the left clutch ground clip from the system chassis(Figure 3-52).

15. For Models 400 and 410, using a Torx T8 or slotted driver, remove thefive screws from the system board and the two screws from the batterycontact

16. For Models 420 and 430, using a Torx T8 or slotted driver, remove thefour screws from the system board and the two screws from the batterycontact

17. From the front of the computer, tilt the system board up then lift thesystem board out of the system chassis (Figure 3-55).

18. Remove the LIF clip from above the serial port connector between thesystem board and the system chassis (Figure 3-56).

19. To replace the system board, reverse the previous steps.To replace the System Board, follow these steps:IMPORTANT: When installing a new system bo

2. Install screws [1] and [2] on the system board before replacing theremaining system board and battery contact screws for Models 400 and410 (Figure

To replace the display assembly, the assembly must be removed from thesystem unit module. This is done by removing the keyboard assembly,disconnecting

NOTE: If installing a new system board, ensure that the insulator isinstalled between the system board and diskette drive. The gasketover the keyboard

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

rails are assembled properly into the PC Card Header. The rail goesunder the edge of the header. Tighten the header screws from the bottomof the syste

This section contains removal and replacement procedures for the PC Cardejection levers and pin.To remove the PC Card ejection levers and pin, follow

4. Remove the bottom PC Card ejection lever from the boss on the CPU base(Figure 3-64)

5. To replace the PC Card ejection levers and pin, reverse the previoussteps.Chapter 3.18 PC Card (PCMCIA) Doors and Springs This section contains rem

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

2. Install the PC Card door, making sure the spring is placed between thenotch [1] and the rib [2] (Figure 3-67).

Bottom PC Card (PCMCIA) Door and SpringThe bottom PC Card door and spring are located on the CPU base. To removethe bottom PC Card door and spring, fo

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 armof

Chapter 1.5 Docking Base The docking base includes the following replaceable parts:o Battery dooro Feeto Handle

2. Install the PC Card door, making sure the spring is placed between thenotch [1] and the rib [2] (Figure 3-70).

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

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 (Figu

9. Slide the trough at the rear of the CPU base to the right, then lift upto remove (Figure 3-73).

10. Remove the system chassis by gently separating it from the CPU baseand lifting out the system chassis (Figure 3-74).

11. To replace the system chassis, reverse the previous steps.Chapter 3.20 CPU Base (All Models) This section provides removal and replacement procedu

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

1. Peel off the top layer of one of the anti-skid pads to expose theadhesive.2. With the adhesive-side down, place the anti-skid pad into the raisedov

serious injury or damage to the equipment.>>>>>>>>>>>>>>>>>>>>>>>>>>>

Chapter 1.6 Monitor Support Cover The monitor support cover is used with the docking base. The foot on themonitor support cover is the only replaceabl

5. To replace the bezel, reverse the previous steps.Removing the Display Enclosure Latches and SpringsTo remove the display enclosure latches and spri

6. Remove the display latch spring from the latch (Figure 3-81).

Replacing the Display Enclosure Springs and LatchesTo replace the display springs and latches, follow these steps:1. Hook the display latch spring on

2. Slide the display latch into place on either side of the displayenclosure (Figure 3-83).

Removing the Display Inverter BoardTo remove the inverter board, follow these steps:1. Disconnect all power from the computer and remove the AC Adapte

placement can cause severe damage to the unit.>>>>>>>>>>>>>>>>>>>>>>>>>>

Replacing the Display Inverter BoardTo replace the inverter board, follow these steps:>>>>>>>>>>>>>>>>

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

Chapter 1.7 System Unit Module Parts

135-degree angle.>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&

12. Carefully remove the Monochrome LCD panel, display cable, and shieldfrom the display enclosure (Figure 3-90).

13. Lay the Monochrome LCD panel face down on a clean surface.14. Grasp the sides of the shield near the backlight cable. Flex theshield away from the

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

17. Lift the display ground cable out of the display enclosure(Figure 3-93).

Replacing the Display Ground Cable, the Display Cable, the Shield, and theMonochrome PanelTo replace the display ground cable, the display cable, the

2. Replace the display cable on the monochrome LCD panel by carefullyinserting the end of the display cable into the ZIF connector slide onthe LCD pan

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

5. Place the shield tabs in the indentations on the right side of theMonochrome LCD panel (Figure 3-97).

6. Align the Monochrome LCD panel, shield, and cable in the displayenclosure and replace the screws. Ensure that the ZIF connector end ofthe display c

Table 1-2. System Unit Module -- Models 400 and 410===========================================================================Spare PartDescription Nu

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 b

12. While holding the end of the display cable inside the ZIF connectorslide, press down both ends of the slide simultaneously to secure thecable in t

13. Ensure that the cable has been seated evenly and that the white lineon the cable is level.14. Replace the keyboard assembly (Section 3.7).Chapter

Removing the CSTN (9.5 inch) Panel, Shield, Display Cable, and the DisplayGround CableTo remove the liquid crystal display CSTN (9.5 inch) panel, the

6. Disconnect the display ground cable [1] from the LIF clip above theserial port connector (Figure 3-102).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

135-degrees (Figure 3-103).>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

12. Carefully remove the CSTN (9.5 inch) panel, display cable, and shieldfrom the display enclosure (Figure 3-105).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

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).

5. Processor upgrade486 DX2/50 MHz 169644-001---------------------------------------------------------------------------6. Real-time clockbattery 1170

16. Disconnect the display cable from the connector on the back of theCSTN (9.5 inch) panel (Figure 3-108).

17. Lift the display ground cable out of the display enclosure(Figure 3-109).

Replacing the Display Ground Cable, Display Cable, Shield, and the CSTN(9.5 inch) PanelTo replace the display ground cable, the display cable, the shi

2. Connect the display cable to the connector on the back of the CSTN (9.5inch) panel (Figure 3-111).

3. Slightly lift the tabs on the left side of the display shield and slidethe shield onto the CSTN (9.5 inch) panel. Ensure that the LIFconnector end

4. Place the display shield tabs in the indentations on the sides of theCSTN (9.5 inch) panel (Figure 3-113).

5. Align the CSTN (9.5 inch) panel, display cable, and shield in thedisplay enclosure and replace the screws. Ensure that the ZIFconnector end of the

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 b

10. Carefully insert the end of the display cable into the ZIF connectorslide on the system board.IMPORTANT: Ensure that the ZIF connector slide is in

12. Ensure that the cable has been seated evenly and that the white lineon the cable is level.13. Replace the keyboard assembly (Section 3.7).Chapter

Table 1-3. System Unit Module -- Models 420 and 430===========================================================================Spare PartDescription Nu

Removing the CTFT (8.4 inch) Liquid Crystal Display PanelTo remove the CTFT (8.4 inch) panel, follow these steps:1. Disconnect all power from the comp

5. Remove the inverter board (Section 3.21).6. Remove the display cable and backlight cable from the inverter board(Section 3.21).>>>>>

8. Carefully rotate the CTFT (8.4 inch) panel down and out of the displayenclosure, laying the CTFT (8.4 inch) panel gently on the keyboardassembly (F

9. Remove the display cable from the connector on the back of the panelby pulling the tabs at the back of the connector (Figure 3-120).

Replacing the CTFT (8.4 inch) Display PanelTo replace the CTFT (8.4 inch) panel, follow these steps:1. Connect the display cable to the connector on t

2. Position the CTFT (8.4 inch) panel into the display enclosure, ensuringthat the ZIF connector end of the display cable is exposed on the rightside

3. Secure the CTFT (8.4 inch) panel with four screws to the displayenclosure.Removing the CTFT (8.4 inch) Display CableTo remove the CTFT (8.4 inch) d

The ZIF connector and its attached cable can be damaged easily. Handleonly the connector slide when disconnecting the ZIF connector. Never pullor twis

The ZIF connector and its attached cable can be damaged easily. Handleonly the connector slide when disconnecting the ZIF connector. Never pullor twis

7. Ensure that the cable has been seated evenly and that the white line onthe cable is level.8. Replace the keyboard assembly (Section 3.7).Removing a

---------------------------------------------------------------------------3. Diskette drivebracket 189240-001----------------------------------------

4. Remove the inverter board (Section 3.21).5. Remove the display cable and backlight cable from the inverter board(Section 3.21).>>>>>

9. To replace the display shield, reverse the previous steps.Removing and Replacing the Display Ground CableTo remove the display ground cable, follow

5. Remove the display cable and backlight cable from the inverter board(Section 3.21).>>>>>>>>>>>>>>>>

11. To replace the display ground cable, reverse the previous steps.Chapter 3.25 Display Components (Models 420 and 430) This section contains removal

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

5. To replace the bezel, reverse the previous steps.Removing the Display Enclosure Latches and SpringsTo remove the display enclosure latches and spri

6. Remove the display latch spring from the latch (Figure 3-132).

Replacing the Display Enclosure Springs and LatchesTo replace the display springs and latches, follow these steps:1. Hook the display latch spring on

2. Slide the display latch into place on either side of the displayenclosure (Figure 3-134).

Removing the Display Inverter Board for the CSTN (10.4 inch) Display>>>>>>>>>>>>>>>>>>>>&g

Table 1-4. Monochrome Display Assembly -- Models 400 and 410===========================================================================Description Spa

location to avoid pinching during the reassembly process. Improper cableplacement can cause severe damage to the unit.>>>>>>>>

the ground wire which is attached to the inverter board.Removing the Display Inverter Board for the CTFT (10.4 inch) Display>>>>>>&g

To remove the inverter board for the CTFT (10.4 inch) Display, followthese steps:1. Disconnect all power from the computer and remove the AC Adapter a

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<&

Replacing the Display Inverter BoardTo replace the inverter board, follow these steps:>>>>>>>>>>>>>>>>

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

135-degrees (Figure 3-142).>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

12. Carefully remove the CSTN (10.4 inch) panel, display cable, and shieldfrom the display enclosure (Figure 3-144).

Preface This Maintenance and Service Guide is used for reference when servicingthe Compaq Contura 400 Family of Personal Computers.Compaq Computer Cor

Chapter 1.9 Color STN (9.5 inch) Display Assembly Parts Table 1-5. CSTN (9.5 inch) Display Assembly -- Models 400 and 410=============================

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

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).

16. Only Sharp panels require the XOVER Board. Remove the ground wireconnecting the XOVER Board with the CSTN (10.4 inch) Panel(Figure 3-147).

17. Disconnect the display cable from the connector on the back of theCSTN (10.4 inch) panel (Figure 3-148).

17. Lift the display ground cable out of the display enclosure(Figure 3-149).

Replacing the Display Ground Cable, Display Cable, Shield, and the CSTN(10.4 inch) PanelTo replace the display ground cable, display cable, shield, an

1. Position the display ground cable in the display enclosure, aligningthe cable with the bosses in the display enclosure (Figure 3-151).2. If the CST

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 therubber p

4. Slightly lift the tabs on the left side of the display shield and slidethe shield onto the CSTN (10.4 inch) panel. Ensure that the LIFconnector end

5. Place the display shield tabs in the indentations on the sides of theCSTN (10.4 in) panel (Figure 3-154).

===========================================================================Chapter 1.10 Color STN (10.4 inch) Display Assembly Parts Table 1-6. CSTN (

6. Align the CSTN (10.4 inch) panel, display cable, and shield in thedisplay enclosure and replace the screws. Ensure that the ZIF connectorend of the

7. Connect the display cable and the backlight cable to the inverterboard (Section 3.25).8. Replace the inverter board (Section 3.25).9. Replace the b

11. Carefully insert the end of the display ground cable into the ZIFconnector slide on the system board.IMPORTANT: Ensure that the ZIF connector slid

13. Ensure that the cable has been seated evenly and that the white lineon the cable is level.14. Replace the keyboard assembly (Section 3.7).Chapter

Removing the CTFT Display PanelTo remove the CTFT (10.4 inch) panel, follow these steps:1. Disconnect all power from the computer and remove the AC Ad

NOTE: The CTFT (10.4 inch) display is different than all other displays.The inverter board fits partially behind the display. Loosen thescrews on the

8. Carefully rotate the CTFT (10.4 inch) panel down and out of the displayenclosure, laying the CTFT (10.4 inch) panel gently on the keyboardassembly

9. Remove the display cable from the connector on the back of the panel(Figure 3-161).

10. The CTFT Display Cable is disconnected by pulling upward on the tabson the back of the Connector.Replacing the CTFT (10.4 inch) Display Panel>&

2. Position the CTFT (10.4 inch) panel into the display enclosure, ensuringthat the ZIF connector end of the display cable is exposed on the rightside

6. Display enclosure Includes enclosure, latch,kit 189245-001 spring, logo and pad forSharp CSTN7. Screw kit * 147885-001-----------------------------

3. Secure the CTFT (10.4 inch) panel with four screws to the displayenclosure.Removing the CTFT (10.4 inch) Display CableTo remove the CTFT (10.4 inch

The ZIF connector and its attached cable can be damaged easily. Handleonly the connector slide when disconnecting the ZIF connector. Never pullor twis

The ZIF connector and its attached cable can be damaged easily. Handleonly the connector slide when disconnecting the ZIF connector. Never pullor twis

7. Ensure that the cable has been seated evenly and that the white line onthe cable is level.8. Replace the keyboard assembly (Section 3.7).Removing a

4. Remove the inverter board (Section 3.25).5. Remove the display cable and backlight cable from the inverter board(Section 3.25).>>>>>

9. To replace the display shield, reverse the previous steps.Removing and Replacing the Display Ground CableTo remove the display ground cable, follow

5. Remove the display cable and backlight cable from the inverter board(Section 3.25).>>>>>>>>>>>>>>>>

11. To replace the display ground cable, reverse the previous steps.Chapter 3.28 Display Enclosure This section provides replacement procedures for th

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.>>>&

8. Disconnect the display ground cable [1] from the LIF clip(Figure 3-172).

a. display cableb. display ground cable5. Display clutch Includes screws for handle(left and right) 147858-001 bracket, washer, tilt feet6. Display en

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

11. Lift the display assembly off the system unit module (Figure 3-174).

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

placement can cause severe damage to the unit.>>>>>>>>>>>>>>>>>>>>>>>>>>

21. Replace the display ground cable, the LCD panel, the shield, and thedisplay cable into the display enclosure as follows:- If replacing a Monochrom

27. Align the clutches with the system unit module, ensuring that thedisplay ground cable and the display cable are positioned on top ofthe system uni

28. Replace the four rear clutch screws (Figure 3-179).

29. Open the display to a 90-degree angle (Figure 3-180).

30. Connect the display ground cable [1] to the LIF clip above the serialport connector between the system board and the system chassis(Figure 3-181).

31. Carefully insert the end of the cable into the ZIF connector slide onthe system unit.IMPORTANT: Ensure that the ZIF connector slide is in its full

board 189136-0013. Display panel 189114-001 Includes labels and shield4. Display cables 189247-001 Includes:a. display cableb. display ground cable5.

33. Ensure that the cable has been seated evenly and that the white lineon the cable is level.34. Replace the right clutch ground clip located between

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 Clut

4. Remove the right clutch ground clip located between the clutch and theCPU base. The right clutch clip for Models 420 and 430 is different andis ill

5. To replace the clutch ground clips, reverse the previous steps.Removing and Replacing the ClutchesTo remove the clutches, follow these steps:1. Dis

5. Remove the left and right clutch ground clips (see "Removing andReplacing Clutch Ground Clips" in this section).6. Pull up both ends of t

9. Using a Torx T8 or slotted driver, remove the four clutch screws on therear of the system unit module (Figure 3-188).

10. Lift the display assembly off the system unit module (Figure 3-189).

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 d

15. Slide the clutches out of the display enclosure.16. To replace the clutches, reverse the previous steps.IMPORTANT: When replacing the display clut

Chapter 3.30 Docking Base This section contains removal procedures for the following docking basecomponents:o Battery Dooro Feeto HandleRemoving the B

===========================================================================1. CPU Cover Includes: 147860-001a. PC Card doorb. spring *c. indicator pan

2. Hold the door upright, applying pressure to the door at the base of thefront hinge [1]. This creates a pivot point [2] to rotate the door outof the

4. Remove the battery door from the docking base (Figure 3-194).

5. To replace the battery door, reverse the previous steps.Replacing the Docking Base FeetTo replace the docking base feet, follow these steps:1. Remo

Replacing the HandleTo replace the docking base handle, follow these steps:1. Using a Torx T8, remove the screw from the rear of the handle(Figure 3-1

2. Slide the handle off the crankshaft (Figure 3-197).

3. Slide the new handle on the crankshaft until the handle seats.4. To secure the new handle to the crankshaft, replace the screw behindthe handle.Cha

Chapter 4. Running POST and Test Introduction This chapter covers troubleshooting information for the computer. Thebasic steps in troubleshooting inc

5. Disconnect any external devices that you do not want to test. (Do notdisconnect the printer if you want to test it or use it to log errormessages.)

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. Ve

Table 1-10. Contura Enhanced Keyboards===========================================================================Description Spare Part Number========

boots from the hard drive (or from a bootable diskette if installedin the diskette drive). However, diskette drive may be disabled, andthe computer ca

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-Comp

help identify possible defective assemblies. Tables 5-2 through 5-13 listComputer Checkup error codes, a description of the error condition, andthe re

Chapter 5. Error Messages and Codes Introduction This chapter provides tables covering possible errors messages for thePower-On Self-Test (POST) and

---------------------------------------------------------------------------Message Beeps Probable Cause Recommended Action----------------------------

Keyboard 2. Replace system board.Error or TextFixtureInstalled---------------------------------------------------------------------------303 - None Sy

Been Detected 3. Replace the system board.by POST---------------------------------------------------------------------------1125 - 2 Short Defective 1

103 - xx DMA page registers test Replace the system board.failed104 - xx Interrupt controller Replace the system board.master test failed105 - xx Port

204 - xx Memory address test If you don't have a memoryfailed expansion board, replace thesystem board.206 - xx Increment pattern test If you hav

connected===========================================================================Table 5-6. Diskette Drive Computer Checkup Error Codes============

12. Enhanced III Keyboard - Portuguese 140536-113 *13. Enhanced III Keyboard - Turkish 140536-114 *14. Enhanced III Keyboard - Greek 140536-115 *15. E

Test 1201 - xx through 1210 - xxerror codes:1202 - xx Modem Timeout Test 1. Refer to modemdocumentation for correctsetup procedures.1203 - xx Modem Ex

1716 - xx Hard drive conditionalformat test failed1717 - xx Hard drive ECC * testfailed1719 - x Hard drive power modetest failed1799 - xx Invalid hard

2419 - xx ECG/VGC ROM checksumtest failed2421 - xx ECG/VGC 640 x 200graphics mode testfailed----------------------------------------------------------

2. Clean trackball.3. Ensure trackball connectoris seated properly.4. Replace the trackballassembly.5. Replace the system board.======================

---------------------------------------------------------------------------Computer is beeping and Computer has Immediately save any openbattery indic

------------------------------------------------Battery contacts Remove the keyboardnot making good assembly and examine thecontact with battery conta

and attempt topower the unit up.If the unit powersup, replace theinverter board.b. Disconnect thedisplay cable fromthe display paneland power the unit

exposed to pack to return to roomtemperature temperature.extremes.------------------------------------------------Battery pack is at Replace battery p

* The recommended storage temperature range for the battery pack is -4oF to86oF (-20oC to 30oC ). The recommended operating temperature range is50oF t

lack of useractivity.---------------------------------------------------Brightness and Press the Fn + F9 keys tocontrast needs adjust the brightness.

Table 1-11. Cables for Models 400 and 410===========================================================================Description Spare Part Number=====

Distorted or garbled The ANSI.SYS driver Add the ANSI.SYS driver tocharacters on the is not in the the CONFIG.SYS file. Adddisplay are mixed CONFIG.SY

light up at all andPower-On-Self-Test(POST) does notcomplete when theunit is poweredup. ****----------------------------------------------------------

"jailbars" pattern), a. System boardhas a single color b. Display panelon it, or has garbled c. Inverter boardgraphics across the ----------

===========================================================================Diskette drive Diskette is damaged. Run CHKDSK on the diskette.indicator st

on, in Standby, or in make sure computer is off,Hibernation. unplugged, and the batterypack is removed.===============================================

---------------------------------------------------------------------------Trackball or mouse Mouse device driver Enter MOUSE at the systemdoes not wo

When turned on, the Card is not inserted Remove and reinsert thecomputer does not properly. card in the correctbeep when a PC Card orientation.is inse

determine which COM portis assigned to the card.---------------------------------------------------The card conflicts From MS-DOS: Run PCCARD towith t

--------------------------------------------------The card is not From MS-DOS: For memoryformatted. cards, run MEMCARD toformat the card. Forhard driv

Table 5-26. Solving Software Application Problems===========================================================================Problem Probable Cause Sol

Table 1-12. Cables for Models 420 and 430===========================================================================Description Spare Part Number=====

o Type of printer connectedo Hardware/software being usedo Printed results of Computer Checkup (TEST) and View System Information(INSPECT), if possibl

Chapter 6. Specifications Introduction This chapter provides physical, environmental, and performancespecifications for the computer and its subassem

---------------------------------------------------------------------------Environmental RequirementsTemperature:Operating 50oF to 104oF 10oC to 40oCN

Operating 10% to 90%Nonoperating 5% to 95%Maximum Altitude(unpressurized):Operating 10,000 ft 3658 mNonoperating 30,000 ft 12192 m--------------------

===========================================================================Table 6-4. Color STN (9.5 inch) Display Models 400 and 410=================

---------------------------------------------------------------------------Pixel Size:Pitch 0.27 x 0.27 mmFormat 640 x 480Configuration RGB Stripe----

Output Voltage 500 VacMaximum Input Power 3.5 WMaximum Output Power 2.5 W===========================================================================Ta

Drive Type 65 (soft) 65 (soft) 65 (soft)---------------------------------------------------------------------------Drive Height:With drive frame 12.7

Media (Mb/s) 19 to 33 26.9 to 39.5 26.9 to 39.5Interface (MB/s) 11.1 11.1 11.1------------------------------------------------------------------------

Low---------------------------------------------------------------------------Rotational Speed 300 rpm------------------------------------------------

o Compaq Service Quick Reference Guideo Service Training Guideso Compaq Service Advisories and Bulletinso Compaq QuickFind

Table 1-13. Contura AC Adapter and Power Cord===========================================================================Description (All Models) Spare

Height 1.3 in 3.3 cmDepth 3.0 in 7.6 cmWidth 5.0 in 12.7 cm---------------------------------------------------------------------------Weight (without

Table 1-14. Contura Memory and Processor===========================================================================Description (All Models) Spare Part

Table 1-15. Miscellaneous Carrying Devices===========================================================================Description (All Models) Spare Pa

Table 1-16. Docking Base and Monitor Support Cover===========================================================================Description (All Models)

===========================================================================Description Spare Part Number Spare Part NumberModels 400 & 410 Models

Chapter 1.21 Fastener List Table 1-18. Fastener Kit for All Models===========================================================================Descripti

M3.0 x 8.0 Pan Display to display 121187-007 SL/T8 4 **enclosure---------------------------------------------------------------------------M2.5 x 24.0

German 147990-041French 147990-051Italian 147990-061Spanish 147990-071Netherlands 147990-331Swedish 147990-101----------------------------------------

Danish 195973-081Norwegian 195973-091Swedish 195973-101Portuguese 195973-131Dutch 195973-331Finnish 195973-351----------------------------------------

Chapter 2. Preparing the Computer for Service Introduction This chapter provides general service information necessary to prepare thecomputer for ser

Chapter 1. Illustrated Parts Catalog Introduction Chapter 1.1 Illustrated Parts Breakdown The computer combines a display assembly and system unit mo

Motions of bench worker 6,000 V 800 V 400 VRemoving DIPS from plastic tubes 2,000 V 700 V 400 VRemoving DIPS from vinyl trays 11,500 V 4,000 V 2,000 V

Grounding MethodsThe method for grounding must include a wrist strap or a foot strap at agrounded workstation. When seated, wear a wrist strap connect

dissipative floor mats, use straps on both feet with a minimum of 1 megohmof resistance between operator and ground. To be effective, the conductivest

o Tool requirementso Screwso Cable and connectorso PlasticsTool Requirementso Flat-bladed screwdrivero Torx T8 screwdriver (included in 130619-001)o H

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

state, province, or local regulations. Whenever possible, recycle thebattery components.>>>>>>>>>>>>>>>&g

Chapter 3. Removal and Replacement Procedures Introduction This chapter provides complete removal and replacement procedures for theCompaq Contura 40

|-- 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 CHASS

| |-- Handle||-- 3.31 MONITOR SUPPORT COVERChapter 3.2 Preparing the Computer >>>>>>>>>>>>>>>>>>

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.

Chapter 1.2 Serial Number The computer serial numbers should be provided to Compaq wheneverrequesting information or ordering spare parts. The serial

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]. Thebat

8. Remove the battery pack (Figure 3-4).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

2. Close the computer and turn it top-side down.3. Move the tilt foot toward the front of the computer, exposing thehandle bracket screw on either sid

6. To install the handle bracket, reverse the previous steps. Discard theold screws and replace with new screws.Chapter 3.4 Tilt Feet This procedure i

4. To install the tilt foot, reverse the previous steps. Discard the oldscrews and replace with new screws.Chapter 3.5 Hard Drive This section contain

2. Close the computer and turn it top-side down.3. Using a Torx T-8 or flat-bladed screwdriver, remove the two screws fromthe hard drive compartment c

5. To replace the hard drive compartment cover, reverse the previous stepsmaking sure to insert the bracket's tab under the plastic edge.Removing

4. To replace the hard drive, reverse the previous steps.Removing the Hard Drive Bracket1. Remove the hard drive compartment cover. Refer to "Rem

4. To replace the hard drive bracket, reverse the previous steps.>>>>>>>>>>>>>>>>>>>>>&

o Battery pack and compartment componentso Keyboard assemblyo Integrated trackball assemblyo Diskette driveo System boardo PC Card (PCMCIA) ejector ra

Chapter 3.6 Memory Expansion Board This section contains removal and replacement procedures for the memorycompartment cover and the memory expansion b

Removing and Replacing the Memory Compartment CoverTo remove the memory compartment cover, follow these steps:1. Disconnect all power from the compute

4. To replace the memory compartment cover, reverse the previous steps.Removing the Memory Expansion BoardTo remove the memory expansion board, follow

Replacing the Memory Expansion BoardTo replace the memory expansion board, follow these steps:1. Align the two connectors on the memory expansion boar

3. Replace the memory compartment cover. Refer to " Removing and Replacingthe Memory Compartment Cover" in this section.Chapter 3.7 Keyboard

battery pack (Section 3.2).2. Close the computer and turn it top-side down.>>>>>>>>>>>>>>>>>>>

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

6. Using the case utility tool, lift up the outside rear corners of thekeyboard assembly to release the keyboard snaps [1], and tilt thekeyboard assem

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

8. Position the display to a 90-degree angle (Figure 3-22).

===========================================================================Models 400 and 410This section provides a description of the system unit mo

Removing the CPU CoverTo remove the CPU cover for replacement, follow these steps.1. Remove the keyboard assembly from the computer. Refer to "Re

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) Do

Replacing the Top PC Card (PCMCIA) Door and SpringTo replace the top PC Card Door and Spring to the keyboard assembly,follow these steps:1. Install th

2. Install the PC Card (PCMCIA) door, ensuring that the spring is placedbetween the post [1] and the rib [2] (Figure 3-26).

Replacing the Keyboard AssemblyIf installing a new keyboard assembly, the hook and loop fastener willhave to be attached to the diskette drive bracket

To replace the existing keyboard assembly in the computer, follow thesesteps:1. Open the display to its fully opened position of 135-degrees(Figure 3-

2. Angle the front end of the keyboard assembly into place at the frontedge of the system unit module.3. Ensure that the front plastic seams of the ke

Chapter 3.8 Battery Compartment Components This section contains removal procedures for the following batterycompartment components:o Battery compartm

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 An

Removing the Battery Release Spring and ButtonTo remove the battery release spring and button, follow these steps:1. Disconnect all power from the com

PC Card ejection levers are replaceable, but are not interchangeablewith those used in the Models 420 and 430.o Diskette drive -- The diskette drive a

4. Rotate the battery release button counterclockwise, until it bowsslightly, and lift it up to clear the hook on the computer base(Figure 3-33).

5. To replace the battery release button and spring, reverse the previoussteps.Chapter 3.9 Real-Time Clock Battery (Models 400 and 410) To remove the

non conductive probe into the battery holder and pushing back on thebattery to release it (Figure 3-34).NOTE: Refer to Chapter 2 "Preparing the C

The computer becomes top heavy when the keyboard assembly is removed andthe display is opened. To prevent damage to the display and the computer,ensur

Chapter 3.11 Processor Upgrade Option (Model 400 Only) This section provides installation and replacement procedures for theprocessor upgrade. The Com

4. To remove the processor upgrade, reverse the previous steps.Chapter 3.12 Integrated Mechanical Trackball Assembly (Models 400 and 410) IMPORTANT: T

2. Remove the keyboard assembly (Section 3.7).3. Using a Torx T-8 or flat-bladed screwdriver, remove the screw from thefront right-hand corner of the

6. To replace the integrated mechanical trackball assembly, reverse theprevious steps.Trackball Cleaning Procedures1. Turn off the computer by pressin

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>&l

o Battery pack -- The Nickel Metal Hydride battery pack is accessedthrough the battery compartment.To access the remaining system unit components, ope

5. To replace the integrated mechanical trackball assembly, reverse theprevious steps.Trackball Cleaning Procedures1. Turn off the computer, disconnec

7. Replace the battery pack and reconnect the AC power.Chapter 3.14 Diskette Drive (All Models) This section contains removal and replacement procedur

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&

Removing the Diskette Drive from the Diskette Drive Bracket1. Remove the diskette drive from the system chassis. Refer to "Removingthe Diskette D

3. Separate the diskette drive from the bracket (Figure 3-45).

4. To replace the diskette drive into the bracket, reverse the previoussteps.Applying the Diskette Drive Hook and Loop FastenerIf installing a new dis

Replacing the Diskette DriveTo replace the diskette drive into the system chassis, follow these steps:>>>>>>>>>>>>

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 the

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<&