Compaq 100 schematic

CONTENTS

preface
Symbols.......................................................................................... ix
Serial Number.................................................................................. x
Locating Additional Information.................................................... x
chapter1
1.1 Computer Features and Models............................................1-1
1.2 System Memory Options.......................................................1-4
1.3 Power Management Functions..............................................1-5
1.4 Setup Configuration Utility (SCU).......................................1-6
1.5 Compaq Configuration Record Utility ...............................1-16
1.6 Gathering Information.........................................................1-17
1.7 Diagnostics..........................................................................1-19
1.8 Computer External Components.........................................1-20
1.9 Design Overview.................................................................1-24
chapter2
2.1 Service Considerations..........................................................2-1
2.2 Basic Troubleshooting Checklist..........................................2-1
2.2 Power-On Self Test (Post) ....................................................2-2
2.3 Solving Common Problems..................................................2-5
2.4 Test Errors.............................................................................2-7
chapter3
3.1 Serial Number Location........................................................3-1
3.2 Computer System Major Components..................................3-2
3.3 Miscellaneous Plastic Kit Components................................3-4
3.4 Hardware Kit Components....................................................3-5
3.5 Cable Kit Components..........................................................3-6
3.6 Mass Storage Devices...........................................................3-7
3.7 Miscellaneous........................................................................3-8
chapter4
4.1 Tools Required......................................................................4-1
4.2 Service Considerations..........................................................4-1
Contents v
4.3 Preventing Damage to Removable Drives ........................... 4-2
4.4 Preventing Electrostatic Damage.......................................... 4-3
4.5 Packaging and Transporting Precautions............................. 4-4
4.6 Workstation Precautions....................................................... 4-4
4.7 Grounding Equipment and Methods .................................... 4-5
chapter5
5.1 Serial Number....................................................................... 5-1
5.2 Disassembly Reference Chart............................................... 5-2
5.4 Battery Pack.........................................................................5-4
5.5 Modem .................................................................................. 5-5
5.6 Fan Assembly........................................................................ 5-8
5.7 CD-ROM Drive................................................................... 5-10
5.8 Processor............................................................................. 5-12
5.9 Memory............................................................................... 5-15
5.10 Top Cover.......................................................................... 5-17
5.11 Hard Drive......................................................................... 5-19
5.12 Real Time Clock (RTC) Battery....................................... 5-20
5.13 Keyboard........................................................................... 5-21
5.14 EMI Shield........................................................................5-23
5.15 Touchpad........................................................................... 5-25
5.16 Speakers ............................................................................ 5-26
5.17 Display Assembly............................................................. 5-27
5.18 Speaker Housing...............................................................5-32
5.19 System Board.................................................................... 5-34
5.20 Diskette Drive................................................................... 5-38
chapter 6
SPECIFICATIONS
appendix A
CONNECTOR PIN ASSIGNMENTS
appendix B
POWER CORD SET REQUIREMENTS
3-Conductor Power Cord Set.......................................................B-1
Country-Specific Requirements...................................................B-2
INDEX .......................................................................................................I-1
vi Contents
chapter
1
PRODUCT DESCRIPTION
1.1 Computer Features and Models
The Compaq Notebook 100 Series offers an AMD K6-2 475-MHz processor, a 12.1-inch SVGA TFT or HPA display, a 5.0-GB hard drive, and a 24X Max CD-ROM drive. The computer also comes equipped with a TouchPad pointing device and 4 MB of video SDRAM.
Figure 1-1. Compaq Notebook 100 Series

Product Description 1-1

Models
The Compaq Notebook 100 Series is available in the models shown in Table 1-1. The computer serial number is located on a bar code on the bottom of the computer and identifies the model’s features.
Table 1-1
Compaq Notebook 100
Model Naming Convention
Example: serial number N10 K2 475 T1S 5 M 64 98
Key A K2 475 T2S 5 M 64 98 1 2345678
KEY DESCRIPTION OPTIONS
1 Brand designator A = Notebook 100 2 Processor K2 = AMD k6-2 3 Processor speed 475 = 475-MHz 4 Display T2S = 12.1”, CTFT, SVGA H2S = 12.1”, HPA, SVGA 5 Hard drive size (MB) 5 = 5.0 MB 6 Integrated
communication 7 RAM (in MB) 64 = 64 MB 32 = 32 MB 8 Operating system 98 = Microsoft
M = Modem 0 = None
Windows 98
2 = Microsoft Word
2000
SB = Microsoft Small
Business
Table 1-2
Compaq Notebook 100 Models
12345678 SKU#
A K2 475 T2S 5 M 64 98/2 175844-XX4 FFG1 A K2 475 T2S 5 M 64 98 180641-XX4 FFG2 A K2 475 T2S 5 M 64 98 180641-XX5 FFG2 A K2 475 T2S 5 0 64 98/2 180097-XX4 FFG3 A K2 475 T2S 5 M 64 98/SB 175599-XX4 FFG4 A K2 475 H2S 5 M 32 98/2 175843-XX4 FFF1 A K2 475 H2S 5 M 32 98 180640-XX4 FFF2 A K2 475 H2S 5 M 32 98 180640-XX5 FFF2 A K2 475 H2S 5 0 32 98/2 180096-XX4 FFF3 A K2 475 H2S 5 M 32 98/SB 175598-XX4 FFF4 A K2 475 H2S 5 M 64 98/2 180095-XX4 FFF5 A K2 475 H2S 5 M 64 98/SB 180094-XX4 FFF6
1-2 Product Description
Config.
Code
Features
The Compaq Notebook 100 Personal Computer has the following features:
AMD K6-2 475-MHz processor with 512 KB integrated L2 cache.
64-MB 100-MHz SDRAM, expandable to 192 MB, or 32-MB
100-MHz SDRAM, expandable to 160 MB, varying by computer model. The Compaq Notebook 100 also features a SODIMM memory expansion slot, capable of accepting a memory expansion board of 32-, 64-, or 128-MB.
Primary memory cache is 64 KB; secondary memory cache is
512 KB.
12.1-inch SVGA TFT or HPA (800 × 600) color display, varying by
computer model. These display feature:
over 16.8 million colors.
integrated Trident CyberBlade AGP2 controller bus.
The computer also features external monitor support with 4G color
(640 × 480, 800 ×600, 1024 ×768, 1280 ×1024), with up to 60-, 75-, or 85-Hz refresh rate.
Microsoft Windows 98, professional or standard edition,
preinstalled.
Keyboard with TouchPad pointing device.
56-Kbps AC97 modem (not supported in DOS mode).
External AC adapter with 6-foot power cord.
A 9-cell NiMH battery pack is standard equipment on the Compaq
Notebook 100 Personal Computer. An 8-cell Li ion battery pack is available as an option.
One Type II PC Card slot with support for both 32-bit CardBus and
16-bit PC Cards.
Mass storage devices include a 5.0-GB hard drive, 3.5-inch,
1.44-MB diskette drive, and 24X Max CD-ROM drive.
Connectors for parallel, serial, audio in/out, external monitor,
universal serial bus, external keyboard, and AC power. An infrared port is also available.
Product Description 1-3
1.2 System Memory Options
Depending on the computer model, the main memory subsystem supports a minimum of 32 or 64 megabytes of Synchronous SDRAM, expandable to 160 or 192 megabytes. The minimum standard Synchronous SDRAM is integrated on the system board. The upgrade SDRAM is accomplished with memory expansion boards that are available on 128-, 64-, and 32­megabytes.
The memory expansion slot is located underneath the fan/CPU cover. Refer to Chapter 5, “Removal and Replacement Procedures,” for information on installing and removing memory expansion boards.
System memory can be upgraded as shown in Table 1-3.
Table 1-13
Memory Upgrade
Base Memory on System Board Memory Expansion Board Total Memory
32 MB 32 MB 64 MB 32 MB 64 MB 96 MB 32 MB 128 MB 160 MB 64 MB 32 MB 96 MB 64 MB 64 MB 128 MB 64 MB 128 MB 192 MB
1-4 Product Description
1.3 Power Management Functions
Power Management functions of the computer are designed to conserve power. All Power Management functions can be configured from the Setup Configuration Utility (SCU), described later in this chapter.
Automatic Power Management
Automatic Power Management operates at two levels as described in the following paragraphs.
Local Power Management
Local Power Management controls computer subsystems. When a subsystem is inactive for a period of time, it is automatically shut down or slowed to reduce power consumption. The subsystem returns to an active state when it is accessed.
Subsystems under Power Management include:
Hard disk drive
Diskette drive
CD-ROM drive
LCD display panel
Global Power Management
Global Power Management automatically puts the computer into Suspend mode when the computer is inactive for a period of time. The computer wakes up whenever activity resumes.
The time-out settings for Suspend mode are set up in the SCU program. The computer uses Suspend-to-RAM (Standby) or Suspend-to-Disk (Hibernation) depending on the Suspend Data To setting in the SCU program.
Manual Power Management
Suspend mode can be initiated at any time in one of two ways:
By pressing Fn + F12.
By closing the top cover, if the Cover Close option is set to Suspend
in the SCU program.
Product Description 1-5
Suspend-to-Disk (Hibernation)
When the computer suspends to disk, the system preserves all the running application programs as a file in a Suspend-to-Disk partition on the hard disk. The computer then turns off automatically. When the computer is powered on, the system reads the file from the Suspend-to-Disk partition back into memory, returning the computer to the state it was in before it was suspended.
If there is no Suspend-to-Disk partition on the hard disk, use the HIBERNAT utility to create the partition, in order to be able to use the Suspend-to-Disk feature.
Suspend-to-RAM (Standby)
When the computer suspends to RAM, several subsystems enter standby or power-off mode to conserve power. The system wakes up when any key is pressed. Resume Timer and Ring Resume options also wake the system from Suspend-to-RAM.
1.4 Setup Configuration Utility (SCU)
The system comes with a Setup Configuration Utility (SCU). This utility configures BIOS settings via menu-driven utilities. Settings are stored in the CMOS RAM.
The SCU must be used when:
An error message indicates that the SCU should be run.
Factory default settings need to be restored (after BIOS upgrades).
Specific settings must be modified.
Starting the SCU
The SCU resides on the system ROM chip. Start the utility by pressing F10 during initial power up.
1-6 Product Description
Main SCU Screen
The SCU main screen is divided into three areas: Menu area – lists the available menu titles, across the top of the screen.
Each menu title provides a pull-down menu of item settings. Display area – displays current system settings. This section also
displays submenus for items that provide multiple options. Information and navigation area – provides keyboard/mouse
instructions for moving around and making decisions. You can select items using either the keyboard or the TouchPad/mouse.
Product Description 1-7
Startup Menu
The Startup pull-down menu contains basic system configuration settings.
Startup Menu
Item Function Default
Date and Time
Fast Boot When enabled, speeds up the booting
Boot Device
Set Admin password
Set User password
Sets the system date and time. N/A
procedure by bypassing the memory test. This option does not include a sub-menu. A check mark indicates Enabled. An underline indicates Disabled.
Sets the boot device sequence. If all booting options are set to the same device, the computer tries to boot only from that device.
Allows the creation of an administrator-level password. This controls whether a non­administrator can boot the system or enter the SCU utility.
Sets up a user-level password. This controls booting, running the SCU, or resuming the system.
Enabled
Diskette A Hard Drive C CD-ROM Drive
An Administrator password must be set up prior to attempting to set
up a User password.
The Administrator password must be used to make changes in the
SCU. The User password only allows browsing.
1-8 Product Description
Memory Menu
The Memory pull-down menu controls memory usage. The setting enables or disables usage of L2 cache memory. The default setting is Enabled.
Disks Menu
The Disks menu contains settings that configure the system diskette drive and hard drive. It also sets the virus alert option.
Product Description 1-9
Disks Menu
Item Function Default
Internal FDC
Sets when an internal diskette drive is present. A check mark indicates that the item is Enabled. An underline indicates Disabled.
Enabled
Diskette Drives
Internal HDC
IDE Settings
Virus Alert Provides warning messages if the hard disk
Sets the type of diskette disk. 1.44MB
Sets when an internal hard drive is present. A check mark indicates that the item is Enabled. An underline indicates Disabled.
Sets the type of hard disk drive in the system.
HDD Timing – Sets the data transmit mode of the hard drive. The default is Ultra DMA-33.
I/O 32 bit Transfer If enabled, allows for a faster transfer rate. The effect is more noticeable under DOS. The default setting is Enabled.
HDD Block Transfer If enabled, allows for a large capacity hard disk. The default setting is Enabled.
boot sector (partition table) has changed. A checkmark indicates that the item is Enabled. An underline indicates Disabled.
Enabled
N/A
Enabled
1-10 Product Description
Components Menu
The Components menu changes settings on various components such as COM and LPT ports.
Components Menu
Item Function Default
Com Port Assigns COM1 and COM2 to specific
LPT Port Sets the address for the LPT (parallel) port.
Keyboard Numlock
Keyboard Repeat
functions. In general, assign COM1 to RS-232 (the serial port); then assign COM2 to IR.
Mode Setting for COM B Sets the IR mode for COM B. The mode depends on the type of device that the computer will communicate with.
This system supports Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP) standards. If the port is set to ECP, choose a DMA channel setting for that port.
Sets the function of the numeric keypad. If you disable this option, the numeric keypad on the computer will not function, even if the Num Lock indicator is on. However, an external keyboard is not affected by this feature.
Sets the repeat rate and delay time of keystrokes. The Key Repeat Rate sets the repeat rate while holding down a key. The Key Delay item sets delaying time between key repeats.
Enabled
Product Description 1-11
Power Menu
The Power menu contains Power Management settings that help conserve system power.
Enable Power Saving – This is the master control for the Power Management features. If disabled, all Power menu items with the exception of Suspend Controls are automatically disabled.
Timeout Settings – Sets up timeout functions. Note that some operating systems such as Windows 98 have built-in APM/ACPI configurations that could override these settings.
Item Function
Video Timeout
Disk Timeout
Global Timeout
1-12 Product Description
Sets the timeout period for the monitor to power down if not used during a set period. The monitor powers up again when a key is pressed. Available options are 30 Sec, 2 Min, 5 Min, 10 Min, 15 Min, and Always On.
Sets the timeout period for the hard disk to power down if not accessed during the set period. The hard disk powers up again when next accessed. Available options are 30 Sec, 1 Min,
1.5 Min, 2 Min, and Always On. Sets the timeout period for the whole system to power down if
not in use during a specified period. The system powers up again once any key is pressed. Available options are 1 Min, 2 Min, 4 Min, 6 Min, 8 Min, 12 Min, 16 Min, and Always On.
Power Menu
continued
Power Menu continued Item Function
Monitor Video Activity
Suspend Timeout
Suspend­to-Disk
Sets up the system to monitor video activity. If enabled, any activity on the screen (such as displaying a movie) prevents the monitor from powering down. Available options are Enabled or Disabled.
Sets the timeout period for the system to enter Suspend Mode if not in use during a pre-set period.
The Suspend Mode is determined by the Suspend Type item in the Suspend Controls submenu. Choices may be Suspend-to­RAM or Suspend-to-Disk.
When Suspend-to-RAM (Standby) mode is initiated, several subsystems enter standby or power-off mode to conserve power. The system wakes up when a key is pressed. Resume Timer and Ring Resume items will also wake the system from Suspend-to-RAM mode.
When Suspend-to-Disk (Hibernation) mode is initiated, the system preserves all running application programs as a file in a suspend-to-disk partition on the hard disk. Available options are 1 Min, 5 Min, 10 Min, 20 Min, 30 Min, and Never.
Sets the timeout period for the system to enter Suspend-to-Disk mode if not in use during a set period.
When Suspend-to-Disk mode is initiated, the system preserves all running application programs as a file in a suspend-to-disk partition on the hard disk. Available options are 1 Min, 5 Min, 10 Min, 20 Min, 30 Min, and Never.
The Suspend-to-Disk item functions regardless of the Suspend Timeout setting and the Suspend Type setting in the Suspend Controls submenu. If the timing of this item is shorter that that of Suspend Timeout, the system directly enters Suspend-to-Disk mode if inactive for the timing.
Product Description 1-13
Suspend Controls – Manages several suspend features.
Suspend Controls Menu
Item Function
Power Button Function
Lid Switch Function
Suspend Type
Sets the function of the Power button. Available options are Power On/Off and Suspend/Resume. If this item is set to Suspend/Resume, holding down the button for 5 seconds will turn off power.
Sets the sequential event when the top cover is closed with power still available. The available options are Blank LCD and Suspend/Resume.
Sets the suspend mode the system enters if it stays inactive for the time specified in the Suspend Timeout item.
Ring Resume – Enables or disables the system from waking up from Suspend-to-RAM mode when the modem receives an incoming call.
Resume Timer – Sets the date and time the system resumes from suspend mode. The default setting is Disabled.
Advance CPU Controls – Sets up further advanced CPU functions.
Advance CPU Controls Menu
Item Function
Clock Control Mechanism
Clock Run Enable
Sets the CPU activity under normal condition. The available options range from 6% to full speed (Disabled). Note that although this item sets the usage of CPU resources, the CPU can still reach its full speed if the system is under a heavy job load.
Enables whether the system can take advantage of the Southbridge chipset to help transmit data, thereby reducing the CPU job load.
1-14 Product Description
Exit Menu
The Exit pull-down menu displays ways of exiting SCU. This menu also restores default settings and displays BIOS version information.
When troubleshooting the Compaq Notebook 100, it is important to obtain all facts about the situation. Obtain details of the problem and any circumstances surrounding the problem. Obtain all error codes or beep codes. Once all facts have been gathered, determine possible causes and search for issues.
Product Description 1-15
1.5 Compaq Configuration Record Utility
Compaq Configuration Record Utility is an online information-gathering tool meant to replace the DOS based Inspect utility. It runs from within Windows and gathers critical hardware and software information from various sources to give a complete view of the computer. The Compaq Configuration Record Utility delivers comprehensive configuration capture, provides a means for automatically identifying and comparing configuration changes, and has the ability to maintain a computer configuration history. The information can be saved as a history of multiple sessions.
The Compaq Configuration Record Utility captures data as sessions; a session is defined as an organized group of data describing the configured state of the system at a specific point in time.
The session information is maintained in a log file, located in the same directory as the executable portion of the program. This file contains all of the ASCII text configuration information captured for a session. This file can be analyzed locally by the Configuration Record Utility, or it can be sent to another location such as a help center, or to Compaq.
The sessions are organized as two distinct types:
Active
The Active session (referenced as session now.log) is the most recent information captured. The utility overwrites this session each time a sample is taken.
Original
The Original session (referenced as session base.log) is the first session sampled. The Compaq Configuration Record Utility will treat this session as a "master configuration" and the utility will never overwrite this session.
1-16 Product Description
1.6 Gathering Information
The comparison feature provides several reports that enable the administrator to specify the particular type and level of information that will be most useful in a particular case. The different report types available are:
Show Only Differences Report
This feature provides a mechanism for filtering the level of information displayed when comparing two different configuration snapshots (or sessions). For example, when a user requests that Configuration Record Utility generate a comparison of sessions using the “differences” filter, the tool automatically compares those two sessions (which are already stored in a Configuration Record file). It then generates a report that shows only the differences between the two generations. In this case, the differences report will include all information recorded, such as changes in amounts of free memory. Reviewing the differences occurring between different configuration snapshots can help identify trends causing intermittent computer problems, such as low memory resources.
Product Description 1-17
Show Details and Differences Report
This report provides the level of detail that is necessary for service personnel to get a clear picture of the system configuration. It provides a much greater depth of information on hardware, operating system services, and drivers that are running on the computer.
The Compaq Configuration Record Utility is supported under Windows 95, Windows 98, and Windows NT 4.0. This utility is available on SoftPaq.
1-18 Product Description
1.7 Diagnostics
Using Compaq Diagnostics
Access Compaq Diagnostics for Windows by selecting
StartÅSettingsÅControl PanelÅCompaq Diagnostics.
To select a category, choose one of two methods:
Select the Categories menu, then select a category from the drop-
down list.
Select a category icon on the toolbar.
To run diagnostic tests:
1. Select the Test tab.
2. In the scroll box, select the category or device you want to test.
3. Select the Quick, Complete, or Custom test type.
4. Select the Interactive or Unattended test mode.
5. Select the Begin Testing button.
6. View test information by selecting a report from the Status, Log, or Error tab.
To print the information or save it to a drive, select the File menu,
then select Print or Save As.
7. To exit, select the File menuÅExit.
Product Description 1-19
1.8 Computer External Components
The external components on the display and right side of the computer are shown in Figure 1-2 and described in Table 1-2.
Figure 1-2. Display and Right Side Components
Table 1-2
Display and Right Side Components
Item Component Function
1 TouchPad and touch
buttons
2 Keyboard Provides numeric keypad, 12 function keys, 3 Stereo speakers Produce high-quality stereo sound.
4 Activity lights Indicate AC/battery power, mass storage, 5 Display release latch Opens the computer.
6 Microphone Allows for audio input. 7 Volume control Adjusts the volume of the stereo speakers. 8 CD-ROM drive Accepts CD-ROM disks. 9 Infrared port Provides wireless communication between
10 Diskette drive Accepts 3.5-inch diskettes.
The TouchPad moves the mouse cursor, selects, and activates. The touch buttons function like the left and right mouse button on an external mouse.
and special fn keys
and keyboard lock status.
the computer and another infrared­equipped device using an infrared beam.
1-20 Product Description
The external components on the left side of the computer are shown in Figure 1-3 and are described in Table 1-4.
Figure 1-3. Left Side Components
Table 1-3
Left Side Components
Item Component Function
1 Security cable slot Accepts an optional security cable to secure
2 Power button Turns the computer on or off or exits
3 RJ-11 jack (internal
modem models only)
4 PC Card slot Supports 32-bit (CardBus) and 16-bit
5 Battery pack Accepts either the standard 9-cell NiMH or
the computer to a fixed object to prevent theft.
Standby. Connects the modem cable to an internal
modem.
PC Cards.
optional 8-cell Li ion battery packs. The battery pack supplies power to the computer of external power is not available.
Product Description 1-21
The external components on the rear of the computer are shown in Figure 1-4 and described in Table 1-5.
Figure 1-4. Rear Components
Table 1-4
Rear Components
Item Component Function
1 Mono microphone jack Connects a mono microphone, disabling
2 Stereo speaker/
headphone jack
the built-in microphone. Connects stereo speakers, headphones, or
headset. This jack is driven by an amplifier and has
volume control. The internal computer speakers are turned off when external speakers or headphones are plugged into this jack.
continued
1-22 Product Description
Table 1-4 continued Item Component Function
3 Universal Serial Bus
(USB) connector
4 Parallel connector Connects an optional parallel device, such
5 Serial connector Connects optional serial devices, such as a
6 External monitor
connector
7 Keyboard/mouse
connector
8 AC Adapter connector Connects the AC power adapter.
Connects USB devices, such as cameras for video conferencing, or hubs which connect multiple USB devices.
The USB connector is a powered hub. When running Windows 98, any combination of up to five powered or unpowered hubs can be connected in any sequence, as long as two unpowered hubs are not connected next to each other.
When running a lower version of Windows, or if using a different operating system, up to two hubs can be connected.
as a printer.
mouse. Connects an optional external monitor,
overhead projector, or TV adapter. Connects an optional full-sized keyboard or
a mouse. Both external mouse and computer pointing device are active. An optional splitter/adapter allows both an external keyboard and mouse to be used at the same time.
Product Description 1-23
1.9 Design Overview
This section presents a design overview of key parts and features of the computer. Refer to Chapter 3 for the illustrated parts catalog and Chapter 5 for removal and replacement procedures.
The system board provides the following device connections:
Memory expansion board
Hard drive
Display
Keyboard/TouchPad
Audio
AMD K6-2 processor
Fan
PC Cards
Modem or modem/NIC
The Compaq Notebook 100 uses an electrical fan for ventilation. The fan is controlled by a temperature sensor and is designed to turn on automatically when high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software applications. Exhaust air is displaced through the ventilation grill located on the right side of the computer.
CAUTION: To properly ventilate the computer, allow at least a 3-inch (7.6 cm) clearance on the left and right sides of the computer.
1-24 Product Description
chapter
2

TROUBLESHOOTING

2.1 Service Considerations
When troubleshooting the Compaq Notebook 100, it is important to obtain all facts about the situation. Obtain details of the problem and any circumstances surrounding the problem. Obtain all error codes or beep codes. Once all facts have been gathered, determine possible causes and search for issues.
2.2 Basic Troubleshooting Checklist
Use the following checklist in the event minor problems are encountered:
Is the computer connected to an external power source or does it
have a fully charged battery pack installed?
Is the computer turned on and is the power indicator illuminated?
Are all cables connected properly and secure?
Did the diskette drive contain a non-bootable diskette when the
system was powered up?
Does the computer have all necessary device drivers?
Have printer drivers been installed for each application?
Was the Windows operating system properly exited?
Has the computer hard drive been scanned for viruses?
Troubleshooting 2-1
2.2 Power-On Self Test (Post)
When the computer starts, the system BIOS runs a series of internal checks on the hardware. This allows the computer to detect problems as early as the power-on stage. The POST alerts you to problems by displaying error messages.
If POST detects an error, the system displays an error message on the display. If the error occurs before the display comes up, error codes or system beeps indicate the POST error.
The value for diagnostic POST (378H) is written at the beginning of the test. Therefore, if the test fails, you can determine where the problem occurred by reading the last value written to POST 378H by the PIO Debug Board Plug at the PIO port. The following table lists error codes in sequential order on the PIO Debug Board.
Table 2-1
Error Codes
Code Description
01h Start of boot loader sequence. 02h Initialize chipset. 03h Memory sizing. 04h Perform conventional RAM (1st 640K) test with crossed
pattern R/W. 05h Move boot loader to the RAM. 06h Start point of execution of boot loader in RAM. 07h Shadow screen BIOS. 08h Initialize clock synthesizer. 09h Initialize audio controller. 0Ah Detect internal ISA modem. 0Bh Proceed with normal boot. 0Ch Proceed with crisis boot. 0Fh DRAM sizing 10h Initial L1, L2 cache, make stack and diagnose CMOS. 11h Turn off fast A20 for post, Reset GDT’s, 8259’s quickly.
continued
2-2 Troubleshooting
Table 2-1 continued
Code Description
12h Signal power on reset on COMS. 13h Initialize the chipset (DRAM). 14h Search for ISA bus VGA adapter. 15h Reset counter/timer 1, excite the RAM. 16h User register config through CMOS. 18h Dispatch to 1st 64K RAM test. 19h Checksum the ROM. 1Ah Reset PIC’s (8259s). 1Bh Initialize video adapter(s) 1Ch Initialize video (6845 regs). 1Dh Initialize color adapter. 1Eh Initialize monochrome adapter 1Fh Test 8237A page registers. 2Oh Perform keyboard self-test. 21h Test and initialize keyboard controller. 22h Check if CMOS RAM valid. 23h Test battery fail & CMOS X-SUM. 24h Test DMA controllers. 25h Initialize 8237 controller. 26h Initialize interrupt vectors table. 27h RAM quick sizing. 28h Protected mode entered safely. 29h RAM test completed. 2Ah Protected mode exit successful. 2Bh Setup shadow. 2Ch Prepare to initialize video. 2Dh Search for monochrome adapter. 2Eh Search for color adapter, VGA initialize
continued
Troubleshooting 2-3
Table 2-1 continued
Code Description
2Fh Signon messages displayed. 30h Special init of keyboard ctlr. 31h Test if keyboard present. 32h Test keyboard interrupt. 33h Test keyboard command Byte. 34h Test, blank and count all RAM. 35h Protected mode entered safely (2). 36h RAM test complete. 37h Protected mode exit successfully. 38h Update keyboard output port to disable gate of A20. 39h Setup cache controller. 3Ah Test if 18.2Hz periodic working. 3Bh Initialize BIOS data area at 40.0. 3Ch Initialize the hardware interrupt vector table. 3Dh Search and initialize the mouse 3Eh Update NUMLOCK status. 3Fh OEM initialization of COM and LPT ports. 40h Configure the COM and LPT ports. 41h Initialize the diskette drive. 42h Initialize the hard disk. 43h OEM’s unit of PM with USB. 44h Initialize additional ROMs. 45h Update NUMLOCK status. 46h Test for coprocessor installed. 47h OEM’s unit of power management (check SMI). 48h OEM’s functions before boot (PC Card, CardBus). 49h Dispatch to operation system boot. 4Ah Jump into bootstrap code.
2-4 Troubleshooting
2.3 Solving Common Problems
Table 2-2
Power
Problem Possible Cause Solution
The power button is pressed and nothing happens. The power indicator does not light up.
No AC or battery power.
Table 2-3
Display
Problem Possible Cause Solution
There is no display on either the internal LCD or an external monitor.
I/O devices and cables causing a problem.
Check to ensure the
AC adapter is plugged in.
Check to ensure the
battery is charged.
Try another working
battery or adapter.
Try a working monitor
or LCD.
Check SW4 for
proper switch settings
Remove I/O devices
and cables and reconnect one by one to determine which is causing the problem.
Table 2-4
VGA Controller Failure
Problem Possible Cause Solution
There is no display on either the internal LCD or an external monitor, yet the system passed POST.
Faulty LCD or Monitor
Try another working
monitor or LCD module.
Remove I/O devices
and cables and reconnect one by one to determine which is causing the problem.
Troubleshooting 2-5
Table 2-5
LCD No Display
Problem Possible Cause Solution
The LCD shows nothing or abnormal picture. The picture is fine on an external monitor.
Improper switch
settings.
Faulty LCD
display.
Cables not
installed properly.
LCD is not active
(toggle Fn + F5)
Check to see if SW4
is set properly.
Discharge CMOS for
wrong display mode setting.
Try a working LCD
display.
Check if D/A BD is
good.
Make sure cables are
installed properly.
Table 2-6
External Monitor No Display
Problem Possible Cause Solution
The CRT monitor shows nothing or abnormal color. The picture is fine on the LCD.
Monitor power
cord not installed properly.
CRT monitor
cable not installed properly
CRT monitor is
faulty.
External display
not active (toggle Fn + F5)
Check the monitor’s
power cord
Check the CRT
monitor cable.
Try a working
monitor.
Check the CMOS
settings
2-6 Troubleshooting
2.4 Test Errors
The following topics contain checklists to help isolate and correct errors generated during POST.
Memory Test Error
Check extended SDRAM modules for proper installation.
Visually inspect the SDRAM socket for bent pins.
Try a working SDRAM module.
Keyboard Test Error
Check the keyboard cable.
If using an external PS/2 keyboard, ensure that it is working properly
by testing a working keyboard.
Diskette Drive Test Error
Ensure that BIOS is set up correctly. Use the SCU to verify.
Ensure that the diskette drive is connected properly.
Try another working diskette drive.
CD-ROM Drive Test Error
Try another working CD.
Ensure that the CD-ROM drive is connected properly.
Try another working CD-ROM drive.
Hard Drive Test Error.
Check the CMOS hard disk drive settings.
Try another working hard disk drive.
Troubleshooting 2-7
USB Board Test Error
Ensure that the USB device is installed properly.
Ensure that the USB driver is installed.
Verify that the USB device conforms to the correct standard, UHCI
as opposed to OHCI.
Try another working UHCI device.
Serial Port Test Error
Ensure that the mouse or other I/O devices are installed properly
(including associated drivers).
Check CMOS to ensure that the COM port is set properly.
Try another working device.
Parallel Port Test Error
Ensure that the PIO device is installed properly.
Check the CMOS LPT port settings
Try another working device.
Audio Failure
Ensure that all cables and devices are connected properly.
Ensure that the appropriate software drivers are installed.
Try another working speaker, cable, and CD-ROM.
Ensure that there are no address or IRQ conflicts.
2-8 Troubleshooting
chapter
3
ILLUSTRATED PARTS CATALOG
This chapter provides an illustrated parts breakdown and a reference for spare part numbers and option part numbers for the Compaq Notebook 100 Personal Computer.
3.1 Serial Number Location
When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer (Figure 3-1).
Figure 3-1. Serial Number Location

Illustrated Parts Catalog 3-1

3.2 Computer System Major Components
Figure 3-2. Computer System Major Components
3-2 Illustrated Parts Catalog
Table 3-1
Spare Parts: Computer System Major Components
Item Description Spare Part Number
1 Display assembly
2a 2b 2c 2d 2e 2f 2g
3a 3b 3c 3d
4 Keyboard 176041-XXX
5 Top cover 176043-001 6 EMI shield 176002-001 7 TouchPad 176044-001 8 Hard drive
9 System board
10 Diskette drive 176047-001 11a
11b 11c 12 Base assembly 176042-001 13 Battery pack
14 AMD K6-2 475-MHz processor 176036-001 15 24X CD-ROM drive 176039-001 16 56 Kbps modem 176052-001 17 Fan assembly 176051-001
12.1-inch panel, HPA (used only with config. codes beginning with “FFF”)
12.1-inch panel, TFT (used only with config. codes beginning with “FFG”)
Miscellaneous Plastics Kit, includes:
Left and right hinge covers Speaker housing RJ11 cover PC Card door I/O cover Modem cover Fan/CPU cover
Hardware Kit, includes:
Speakers (2) Real time clock battery and sponge Processor bracket Modem shield
Brazilian French German International Italian Japanese
5.0 GB 176040-001
64 MB SDRAM (used only with config. codes
“FFG1” through “FFG4”)
64 MB SDRAM (used only with config. codes
“FFF5” and “FFF6”)
32 MB SDRAM (used only with config. codes
“FFF1” through “FFF4)
Cable Kit, includes:
Diskette drive cable Modem cable CD-ROM drive cable
NiMH (standard) Li ion (available only as an option)
-201
-051
-041
-002
-061
-291
Latin American
Spanish Portuguese Spanish U.K. English U.S. English
176037-001 176038-001 176048-001
176049-001
189047-001 176035-001 176034-001
176004-001
174373-001 174372-001
-161
-131
-071
-031
-001
Illustrated Parts Catalog 3-3
3.3 Miscellaneous Plastics Kit Components
Figure 3-3. Miscellaneous Plastics Kit Components
Table 3-2
Miscellaneous Plastics Kit Components
Spare Part Number 176048-001
Item Description
1 Left and right hinge covers 2 Speaker housing 3 RJ11 cover 4 PC Card door 5 I/O cover 6 Modem cover 7 Fan/CPU cover
3-4 Illustrated Parts Catalog
3.4 Hardware Kit Components
Figure 3-4. Hardware Kit Components
Hardware Kit Components
Spare Part Number 176049-001
Item Description
1 Speakers (2) 2 Real time clock battery 3 Processor bracket 4 Modem shield
Table 3-3
Illustrated Parts Catalog 3-5
3.5 Cable Kit Components
Figure 3-5. Cable Kit Components
Spare Parts: Cable Kit Components
Spare Part Number 176004-001
Item Description
1 Diskette drive cable 2 Modem cable 3 CD-ROM drive cable
Table 3-4
3-6 Illustrated Parts Catalog
3.6 Mass Storage Devices
Figure 3-6. Mass Storage Devices
Table 3-5
Spare Parts: Mass Storage Devices
Item Description Spare Part Number
1 5.0-GB hard drive 176040-001 2 24X CD-ROM drive (standard) 176039-001 3 Diskette drive, 1.44-Megabyte 176047-001
Illustrated Parts Catalog 3-7
3.7 Miscellaneous
Table 3-6
Spare Parts: Miscellaneous (Not Illustrated)
Description Spare Part Number
Power cord, black, 6 feet 246959-XXX
Australian Danish International Italian Japanese
PC Cards
Compaq Microcom 420 56K Global Modem Compaq Netelligent 10/100 TX network card Compaq Microcom 500 10/100 +56K combination
modem/network interface card AC Adapter, 50 W 174371-001 Miscellaneous Screw Kit 176050-001 Memory expansion board
128 MB 64 MB 32 MB
Compaq Notebook 100 Maintenance & Service Guide 190369-001
-011
-081
-021
-061
-291
Korean Swiss U.K. English U.S. English
-AD1
-AG1
-031
-001
317900-001 335506-B12
321550-B21
179966-001 179965-001 179964-001
3-8 Illustrated Parts Catalog
chapter
4
REMOVAL AND REPLACEMENT PRELIMINARIES
This chapter provides essential information for proper and safe removal and replacement service.
4.1 Tools Required
You will need the following tools to complete the removal and replacement procedures:
Magnetic Phillips screwdriver
Tool kit (includes connector removal tool, loopback plugs, and case
utility tool)
4.2 Service Considerations
Listed below are some of the considerations that you should keep in mind during disassembly and assembly procedures.
IMPORTANT: As you remove each subassembly from the computer, place it (and all accompanying screws) away from the work area to prevent damage.
Plastic Parts
Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions.

Removal and Replacement Preliminaries 4-1

Cables and Connectors
Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing cables. Ensure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; they tear easily.
CAUTION: When servicing the computer, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the computer.
4.3 Preventing Damage to Removable Drives
Removable drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a removable drive, or loss of information, observe these precautions:
Before removing or inserting a hard drive, shut down the computer.
If you are unsure whether the computer is off or in Hibernation, turn the computer on, then shut it down.
Before removing a diskette drive or CD-ROM drive, ensure that a
diskette or disc is not in the drive. Ensure that the CD-ROM tray is closed.
Before handling a drive, ensure that you are discharged of static
electricity. While handling a drive, avoid touching the connector.
Handle drives on surfaces that have at least one inch of shock-proof
foam.
Avoid dropping drives from any height onto any surface.
4-2 Removal and Replacement Preliminaries
After removing a hard drive, place it into a static-proof bag.
After removing a CD-ROM drive or a diskette drive, place it into a
static-proof bag.
Do not use excessive force when inserting a drive into a drive bay.
Avoid exposing a hard drive to products that have magnetic fields
such as monitors or speakers.
Avoid exposing a drive to temperature extremes or to liquids.
If a drive must be mailed, do the following: place the drive into a
bubble pack mailer or other suitable form of protective packaging; label the package “Fragile: Handle With Care.”
4.4 Preventing Electrostatic Damage
Many electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases the discharge contains enough power to alter device parameters or melt silicon junctions.
A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge may not be affected at all and can work perfectly throughout a normal cycle. It may function normally for a while, then degrade in the internal layers, reducing its life expectancy.
Removal and Replacement Preliminaries 4-3
4.5 Packaging and Transporting Precautions
Use the following grounding precautions when packaging and transporting equipment:
To avoid hand contact, transport products in static-safe containers
such as tubes, bags, or boxes.
Protect all electrostatic-sensitive parts and assemblies with
conductive or approved containers or packaging.
Keep electrostatic-sensitive parts in their containers until they arrive
at static-free workstations.
Place items on a grounded surface before removing them from their
container.
Always be properly grounded when touching a sensitive component
or assembly.
Place reusable electrostatic-sensitive parts from assemblies in
protective packaging or non-conductive foam.
Use transporters and conveyers made of antistatic belts and roller
bushings. Ensure that mechanized equipment used for moving materials is wired to ground, and that proper materials were selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges.
4.6 Workstation Precautions
Use the following grounding precautions at workstations:
Cover the workstation with approved static-dissipative material
(refer to Table 4-2 later in this chapter).
Use a wrist strap connected to a properly grounded work surface and
use properly grounded tools and equipment.
Use field service tools, such as cutters, screwdrivers, and vacuums
that are conductive.
When using fixtures that must directly contact dissipative surfaces,
use fixtures made of static-safe materials only.
Keep work area free of nonconductive materials such as ordinary
plastic assembly aids and Styrofoam.
Handle electrostatic-sensitive components, parts, and assemblies by
the case or PCM laminate. Handle them only at static-free workstations.
4-4 Removal and Replacement Preliminaries
Avoid contact with pins, leads, or circuitry.
Turn off power and input signals before inserting or removing
connectors or test equipment.
4.7 Grounding Equipment and Methods
Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation.
When seated, wear a wrist strap connected to a grounded system.
Wrist straps are flexible straps with a minimum of one megaohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snug against the skin at all times. On grounded mats with banana-plug connectors, connect a wrist strap with alligator clips.
When standing, use foot straps and a grounded floor mat. Foot straps
(heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on both feet with a minimum of one-megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin.
Other grounding equipment recommended for use in preventing
electrostatic damage include:
Antistatic tape
Antistatic smocks, aprons, or sleeve protectors
Conductive bins and other assembly or soldering aids
Non-conductive foam
Conductive tabletop workstations with ground cord of one-megohm
resistance
Static-dissipative table or floor mats with hard tie to ground
Field service kits
Static awareness labels
Material-handling packages
Non-conductive plastic bags, tubes, or boxes
Metal tote boxes
Electrostatic Voltage Levels and Protective Materials
Removal and Replacement Preliminaries 4-5
Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities.
Table 4-1
Typical Electrostatic Voltage Levels
Relative Humidity
Event 10% 40% 55%
Walking across carpet 35,000 V 15,000 V 7,500 V Walking across vinyl floor 12,000 V 5,000 V 3,000 V Motions of bench worker 6,000 V 800 V 400 V Removing DIPS from plastic
tube Removing DIPS from vinyl tray 11,500 V 4,000 V 2,000 V Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V Removing bubble pack from
PCB Packing PCBs in foam-lined
box NOTE: A product can be degraded 700 volts.
Table 4-2 lists the shielding protection provided by antistatic bags and floor mats.
2,000 V 700 V 400 V
26,500 V 20,000 V 7,000 V
21,000 V 11,000 V 5,000 V
Table 4-2
Static-Shielding Materials
Material Use Voltage Protection Level
Antistatic plastic Bags 1,500 V Carbon-loaded plastic Floor mats 7,500 V Metallized laminate Floor mats 15,000 V
4-6 Removal and Replacement Preliminaries
Chapter
5
REMOVAL AND REPLACEMENT PROCEDURES
This chapter provides removal and replacement procedures for the Compaq Notebook 100 Series.
5.1 Serial Number
Report the computer serial number to Compaq when requesting information or ordering spare parts. The serial number is located on the bottom of the computer (Figure 5-1).
Figure 5-1. Serial Number Location

Removal and Replacement Procedures 5-1

5.2 Disassembly Reference Chart
Use the chart below to determine the section number to be referenced when removing components from the computer.
5.3 Preparing the Computer for Disassembly
5.4 Battery Pack
5.5 Modem
5.6 Fan Assembly
5.7 CD-ROM Drive
5.8 Processor
5.9 Memory Removing a Memory Expansion Board Installing a Memory Expansion Board
5.10 Top Cover
5.11 Hard Drive
5.12 Real Time Clock (RTC) Battery
5.13 Keyboard
5.14 EMI Shield
5.15 TouchPad
5.16 Speakers
5.17 Display Assembly
5.18 Speaker Housing
5.19 System Board
5.20 Diskette Drive
5-2 Removal and Replacement Procedures
5.3 Preparing the Computer for Disassembly
Perform the following steps before disassembling the computer. Consult the computer reference guide for instructions on the steps below.
1. Remove any diskettes installed in the diskette drive.
2. Remove any CD-ROM discs installed in the CD-ROM drive.
3. Turn off the computer and close it.
4. Disconnect the AC Adapter and external devices.
5. Remove the battery pack (Section 5.4).
Removal and Replacement Procedures 5-3
5.4 Battery Pack
Battery Pack
Spare Part Number Information
Battery pack, NiMH 174373-001 Battery pack, Li ion 174372-001
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the right side facing forward.
3. Lift the battery tab up
4. Slide the battery release switch to the left
5. Lift up the front edge of the battery pack and swing it away from
computer .
6. Remove the battery pack.
(Figure 5-2).
➋.
Figure 5-2. Removing the Battery Pack
Reverse the removal procedure described above to replace the battery pack.
5-4 Removal and Replacement Procedures
5.5 Modem
Modem
Spare Part Number Information
56Kbps modem board 176052-001 Modem cover (spared in Plastics Kit) 176048-001 Modem shield (spared in Hardware Kit) 176046-001 Modem cable (spared in Cable Kit) 176004-001
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the front facing forward.
3. Remove the screw (Figure 5-3).
4. Lift the left side of the modem cover and swing it up and to the
➋.
right
5. Remove the modem cover.
securing the modem cover to the base assembly
Figure 5-3. Removing the Modem Cover
Removal and Replacement Procedures 5-5
6. Remove the two screws ➊ securing the modem shield to the
base assembly (Figure 5-4).
7. Remove the modem shield ➋.
Figure 5-4. Removing the Modem Shield
5-6 Removal and Replacement Procedures
8. Swing the plastic modem protector toward the back of the computer
(Figure 5-5).
9. Disconnect the modem cable from the system board
10. Lift the left side of the modem board to disconnect it from the system
board .
11. If necessary, disconnect the modem cable from the modem board and
replace the modem cable .
➋.
Figure 5-5. Removing the Modem
12. Remove the modem board. Reverse the removal procedure described above to replace the modem.
Removal and Replacement Procedures 5-7
5.6 Fan Assembly
Fan Assembly
Spare Part Number Information
Fan assembly (includes fan shield, fan, and
heat sink)
Fan/CPU cover (spared in Plastics Kit) 176048-001
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up with the front facing forward.
3. Remove the four screws securing the fan/CPU cover to the base assembly. Note that the two screws removed from the back edge of the cover differ in size from the other two screws (Figure 5-6).
176051-001
4. Remove the fan/CPU cover
Figure 5-6. Removing the Fan/CPU Cover
➌.
5-8 Removal and Replacement Procedures
5. Disconnect the fan cable ➊ from the system board (Figure 5-7).
6. Remove the four screws board.
7. Remove the fan assembly
Figure 5-7. Removing the Fan Assembly
securing the fan assembly to the system
➌.
Removal and Replacement Procedures 5-9
5.7 CD-ROM Drive
CD-ROM Drive
Spare Part Number Information
24X Max CD-ROM drive 176039-001 CD-ROM drive cable (spared in Cable Kit) 176004-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the fan assembly (Section 5.6).
3. Disconnect the CD-ROM drive cable from the system board (Figure 5-8).
4. Remove the screw securing the CD-ROM drive to the base assembly .
5. Push on the back of the CD-ROM drive and slide the drive to the left
➌.
Figure 5-8. Removing the CD-ROM Drive
6. Remove the CD-ROM drive.
5-10 Removal and Replacement Procedures
7. If necessary, disconnect the CD-ROM drive cable from the CD-ROM drive (Figure 5-9).
Figure 5-9. Removing the CD-ROM Drive Cable
Reverse the removal procedure described above to replace the CD-ROM drive.
Removal and Replacement Procedures 5-11
5.8 Processor
Processor
Spare Part Number Information
475-MHz processor 176036-001 Processor bracket 176046-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the fan assembly (Section 5.6).
3. Swing the left side of the processor bracket up and to the right (Figure 5-10).
4. Remove the processor bracket
Figure 5-10. Removing the Processor Bracket
➋.
5-12 Removal and Replacement Procedures
5. Insert the tip of a flat-blade screwdriver into the left socket . This
socket is marked “SKT OPEN” (Figure 5-11).
6. Swing the screwdriver to the right to release the processor .
7. Remove the processor.
Figure 5-11. Removing the Processor
Removal and Replacement Procedures 5-13
When replacing the processor, make sure the white square is in the upper-right corner socket (marked “SKT CLOSE) to seat the processor
Figure 5-12. Replacing the Processor
. Insert the tip of the screwdriver into the right
and swing the screwdriver to the right
(Figure 5-12).
5-14 Removal and Replacement Procedures
5.9 Memory
Memory Expansion Board
Spare Part Number Information
128 MB memory expansion board 179964-001 64 MB memory expansion board 179965-001 32 MB memory expansion board 179966-001
The Compaq Notebook 100 computer features one memory expansion slot, located under the fan assembly.
Removing a Memory Expansion Board
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the fan assembly (Section 5.6).
3. Spread the retaining tabs apart upward (Figure 5-13).
4. Lift the edge of the memory expansion board and gently slide it out of the memory expansion slot at a 45-degree angle
5. Place the memory expansion board in an electrostatic-safe container.
. The memory expansion board tilts
➋.
Figure 5-13. Removing a Memory Expansion Board
Removal and Replacement Procedures 5-15
Installing a Memory Expansion Board
All memory expansion boards are asymmetrically keyed (notched) to ensure correct positioning. Memory expansion boards can be used in either memory expansion slot.
1. Insert the memory expansion board into an empty memory expansion slot at a 45-degree angle
(Figure 5-14).
2. Push the memory expansion board down in the plastic retention clips.
Figure 5-14. Installing a Memory Expansion Board
until the board is seated
5-16 Removal and Replacement Procedures
5.10 Top Cover
Top Cover
Spare Part Number Information
Top cover 176043-001
1. Prepare the computer for disassembly (Section 5.3).
2. Turn the computer bottom side up, with the front facing forward.
3. Remove the six screws securing the top cover to the base assembly (Figure 5-15).
Figure 5-15. Removing the Top Cover Screws
4. Turn the computer top side up, with the front facing forward.
5. Open the computer.
Removal and Replacement Procedures 5-17
6. Lift up the front edge of the top cover ➊ and swing it toward the
back of the computer
Figure 5-16. Removing the Top Cover
7. Remove the top cover.
IMPORTANT: When installing the top cover, align the five tabs on the back edge of the top cover with the slots in the speaker housing.
(Figure 5-16).
5-18 Removal and Replacement Procedures
5.11 Hard Drive
Hard Drive
Spare Part Number Information
5.0 GB hard drive 176040-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the top cover (Section 5.10).
3. Remove the two screws securing the hard drive to the base assembly
(Figure 5-17).
4. Lift up the right side of the hard drive to the right
Figure 5-17. Removing the Hard Drive
5. Remove the hard drive.
Reverse the removal procedure described above to replace the hard drive.
to disconnect it from the TouchPad assembly.
➋, and then pull the hard drive
Removal and Replacement Procedures 5-19
5.12 Real Time Clock (RTC) Battery
NOTE: Removal of the RTC battery clears all information from CMOS.
Real Time Clock Battery
Spare Part Number Information
Real time clock battery (spared in Hardware Kit) 176049-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the top cover (Section 5.10).
3. Disconnect the RTC battery cable from the TouchPad (Figure 5-18).
4. Remove the RTC battery from the base assembly
Figure 5-18. Removing the RTC Battery
Reverse the removal procedure described above to replace the RTC battery.
➋.
5-20 Removal and Replacement Procedures
5.13 Keyboard
Keyboard
Spare Part Number Information
Keyboard 176041-XXX
Brazilian French German International Italian Japanese
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the top cover (Section 5.10).
-201
-051
-041
-002
-061
-291
Latin American
Spanish Portuguese Spanish U.K. English U.S. English
-161
-131
-071
-031
-001
Removal and Replacement Procedures 5-21
3. Lift up the front edge of the keyboard ➊ and swing it back toward
the display (Figure 5-19).
4. Release the ZIF (zero insertion force) connector to which the keyboard cable is attached
➋.
5. Disconnect the keyboard cable from the system board
Figure 5-19. Releasing the Keyboard and Disconnecting the
Keyboard Cable
6. Remove the keyboard.
IMPORTANT: When installing the keyboard, align the three tabs on the back edge of the keyboard with the slots in the EMI shield.
➌.
5-22 Removal and Replacement Procedures
5.14 EMI Shield
EMI Shield
Spare Part Number Information
EMI shield 176002-001
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the top cover (Section 5.10).
3. Remove the keyboard (Section 5.13).
4. Remove the 12 screws securing the EMI shield to the base assembly (Figure 5-20).
NOTE: There are three different-sized screws removed in this step: the silver screws are removed/installed in location screws are removed/installed in location removed/installed in location
➌.
; the longer black
; the shorter black screw is
Also note that one of the silver screws cable to the EMI shield.
Figure 5-20. Removing the EMI Shield Screws
secures the display ground
Removal and Replacement Procedures 5-23
5. Lift up the front edge of the shield and swing it toward the back of computer (Figure 5-21).
Figure 5-21. Removing the EMI shield
6. Remove the EMI shield.
Reverse the removal procedure described above to replace the EMI shield.
5-24 Removal and Replacement Procedures
5.15 TouchPad
TouchPad
Spare Part Number Information
TouchPad 176044-001
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
hard drive (Section 5.11)
RTC battery (Section 5.12)
keyboard (Section 5.13)
EMI shield (Section 5.14)
2. Lift the back edge of the TouchPad to disconnect it from the system
(Figure 5-22).
board
3. Remove the TouchPad
Figure 5-22. Removing the TouchPad
Reverse the removal procedure described above to replace the TouchPad.
➋.
Removal and Replacement Procedures 5-25
5.16 Speakers
Speakers
Spare Part Number Information
Speakers (2; spared in Hardware Kit) 176049-001
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
keyboard (Section 5.13)
EMI shield (Section 5.14)
2. Disconnect the speaker cables from the system board (Figure 5-23).
3. Remove the speakers from the speaker housing
Figure 5-23. Removing the Speakers
➋.
Reverse the removal procedure described above to replace the speakers.
5-26 Removal and Replacement Procedures
5.17 Display Assembly
Display Assembly Components
Spare Part Number Information
12.1-inch panel, HPA 176037-001
12.1-inch panel, TFT 176038-001 Left and right hinge covers (spared in Plastics
Kit)
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
keyboard (Section 5.13)
EMI shield (Section 5.14)
2. Use a flat blade screwdriver to gently pry up and remove the left and right hinge covers (Figure 5-24).
176048-001
Figure 5-24. Removing the Hinge Covers
Removal and Replacement Procedures 5-27
3. Open the computer as far as it will open.
4. Disconnect the display video cable microphone cable
Figure 5-25. Disconnecting the Display Cables
(Figure 5-25).
, display inverter cable , and
5-28 Removal and Replacement Procedures
5. Remove the four screws ➊ securing the display hinges to the base
assembly (Figure 5-26).
6. Remove the display assembly ➋.
NOTE: Make sure the display assembly is supported and does not fall when the screws are removed.
Figure 5-26. Removing the Display Assembly
Removal and Replacement Procedures 5-29
When installing the display assembly, make sure the display video cable
is routed behind the left speaker connector on the system
board (Figure 5-27).
Figure 5-27. Routing the Display Video Cable
5-30 Removal and Replacement Procedures
When replacing the display assembly, it is imperative that the DIP switches are correctly set. To set the display DIP switches on the system board, follow the steps below.
1. Remove the display assembly.
2. Locate the part number label on the display microphone cable
(Figure 5-28).
3. Part number “441668500001/176038-001” corresponds to the
12.1-inch, TFT display assembly. If this is the part number on the label, make sure the display DIP switch on the system board is set according to setting .
4. Part number “441668500002/176037-001” corresponds to the
12.1-inch, HPA display assembly. If this is the part number on the label, make sure the display DIP switch on the system board is set according to setting .
Figure 5-28. Setting the Display DIP Switches
5. After the DIP switch settings have been verified, reassemble the computer.
Removal and Replacement Procedures 5-31
5.18 Speaker Housing
Speaker Housing
Spare Part Number Information
Speaker housing (spared in Plastics Kit) 176048-001 I/O cover (spared in Plastics Kit) 176048-001
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
keyboard (Section 5.13)
EMI shield (Section 5.14)
display assembly (Section 5.17)
2. Position the computer so the rear panel faces forward.
3. Remove the screw securing the I/O cover to the speaker housing (Figure 5-29).
4. Flex the middle of the I/O cover away from the computer
Figure 5-29. Removing the I/O Cover
5. Remove the I/O cover.
➋.
5-32 Removal and Replacement Procedures
6. Remove the five screws securing the speaker housing to the base assembly
(Figure 5-30).
7. Remove the speaker housing
Figure 5-30. Removing the Speaker Housing
Reverse the removal procedure described above to replace the speaker housing.
➋.
Removal and Replacement Procedures 5-33
5.19 System Board
System Board
Spare Part Number Information
System board with 32 MB SDRAM 176034-001 System board with 64 MB SDRAM 176035-001 RJ11 cover (spared with Plastics Kit) 176048-001 PC Card door (spared with Plastics Kit) 176048-001
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
hard drive (Section 5.11)
RTC battery (Section 5.12)
keyboard (Section 5.13)
EMI shield (Section 5.14)
TouchPad (Section 5.15)
speakers (Section 5.16)
display assembly (Section 5.17)
speaker housing (Section 5.18)
2. Turn the computer bottom side up with the rear panel facing forward.
5-34 Removal and Replacement Procedures
3. Remove the two screws securing the system board to the base assembly (Figure 5-31).
Figure 5-31. Removing the System Board Screws
4. Turn the computer top side up with the front facing forward.
Removal and Replacement Procedures 5-35
5. If installed, remove the RJ11 cover from the left side of the computer
(Figure 5-32).
6. Disconnect the diskette drive LIF (low insertion force) cable from the system board
➋.
7. Remove the system board from of the base assembly
Figure 5-32. Removing the System Board
IMPORTANT: When installing the system board, make sure the diskette drive cable does not get trapped underneath the system board.
➌.
5-36 Removal and Replacement Procedures
If necessary, remove the PC Card door by partially opening the door ➊, flexing the middle of the door away from the computer ➋, and removing the door (Figure 5-33).
Figure 5-33. Removing the PC Card Door
Removal and Replacement Procedures 5-37
5.20 Diskette Drive
Diskette Drive
Spare Part Number Information
Diskette drive, 1.44 MB 176047-001 Diskette drive cable (spared in Cable Kit) 176004-001
1. Prepare the computer for disassembly (Section 5.3) and, in the order below, remove the following components:
top cover (Section 5.10)
hard drive (Section 5.11)
RTC battery (Section 5.12)
keyboard (Section 5.13)
EMI shield (Section 5.14)
TouchPad (Section 5.15)
speakers (Section 5.16)
display assembly (Section 5.17)
speaker housing (Section 5.18)
system board (Section 5.19)
5-38 Removal and Replacement Procedures
2. Lift the back edge of the diskette drive ➊ and swing it up and toward
the front of the base assembly
Figure 5-34. Removing the Diskette Drive
3. Remove the diskette drive.
(Figure 5-34).
Removal and Replacement Procedures 5-39
If necessary, remove the diskette drive cable by releasing the ZIF connector (Figure 5-35).
to which the cable is attached and disconnecting the cable ➋
Figure 5-35. Disconnecting the Diskette Drive Cable
5-40 Removal and Replacement Procedures
When installing the diskette drive, first insert the front of the drive through the opening in the base assembly the drive into the base assembly back of the drive fits inside the diskette drive shield (Figure 5-36).
Figure 5-36. Installing the Diskette Drive
. Make sure the FPC cable on the
, then lower the back edge of
Removal and Replacement Procedures 5-41
appendix
A
CONNECTOR PIN ASSIGNMENTS
Table A-1
RJ-11
Connector Pin Signal
1
1
7
3
2
8
654
2 3 4 5 6 7 8
NC_J3A NC_J3B TIP RING NC_J3C NC_J3D Unused Unused
Table A-2
Serial Connector
13
Pin Signal Pin Signal
1 Carrier Detect 6 Data Set Ready 2 Receive Data 7 Ready to Send 3 Transmit Data 8 Clear to Send 4 Data Terminal Ready 9 Ring Indicator 5 Ground
49852
76

Connector Pin Assignments A-1

Table A-3
Microphone Jack
Connector Pin Signal
1
1
2
2
Audio in Ground
Table A-4
Stereo Speaker/Headphone Jack
Connector Pin Signal
1
1
2
2
Audio out Ground
Table A-5
Stereo Line-in Jack
Connector Pin Signal
1
1
2
2
Audio in Ground
A-2 Connector Pin Assignments
Table A-6
Parallel Connector
5678910111213
1820 1921222325 24
151617 14
Pin Signal Pin Signal
1 Strobe 14 Auto Linefeed 2 Data Bit 0 15 Error 3 Data Bit 1 16 Initialize Printer 4 Data Bit 2 17 Select In 5 Data Bit 3 18 Ground 6 Data Bit 4 19 Ground 7 Data Bit 5 20 Ground 8 Data Bit 6 21 Ground 9 Data Bit 7 22 Ground 10 Acknowledge 23 Ground 11 Busy 24 Ground 12 Paper End 25 Ground 13 Select
1234
Connector Pin Assignments A-3
Table A-7
Docking Connector
30 60 90 120
Pin Signal Pin Signal
1 EBOXL 29 XA3/R IN 2 AGND 30 MID0/MIC IN 3 EBOXS1 31 AUGND 4 RED 32 XA0/L OUT 5 AGND 33 XSD/MIC SN 6 GREEN 34 XA1/R OUT 7 AGRD 35 GND 8 BLUE 36 GND 9 AGND 37 EXPCLK2 10 VSYNC 38 +3.3V 11 HSYNC 39 EXPCLK0 12 DDC DAT 40 +5V (8051VCC) 13 DDC CLK 41 EXPCLK 14 GND 42 EBOXS2 15 INDEX 43 GND 16 RDATA 44 EBOXL 17 TRK0 45 EBOXL /GND 18 WDATA 46 SRDY 19 WGATE 47 EBOXS1 /GND 20 STEP 48 RI1 EX 21 DIR 49 GND 22 POWER ON 50 SLCT LD0 23 SYS RESET 51 PE LD1 24 GND 52 ACK LD2 25 DSKCHG 53 BUSY LD3 26 +5 V (VDD) 54 GND 27 AUGND 55 STRB LD4 28 XA2/L IN 56 ALF LD5
1 31 61 91
Continued
A-4 Connector Pin Assignments
Table A-7 continued
Pin Signal Pin Signal
57 INIT LD6 91 PS2 VCC 58 SLCTIN LD7 92 SERIRQ 59 GND 93 PS2 CLK 60 PDATA0 LD8 94 EXPREQ 61 PDATA1 LD9 95 AD[29] 62 PDATA2 LD10 96 AD[31] 63 PDATA3 LD11 97 AD[30] 64 GND 98 AD[28] 65 PDATA4 LD12 99 AD[26] 66 PDATA5 LD13 100 GND 67 PDATA6 LD14 101 AD[24] 68 PDATA7 LD15 102 AD[22] 69 GND 103 AD[20] 70 ERROR LCLK 104 AD[18] 71 RXD1 LVREQ 105 AD[16] 72 TXD1 LCREQ 106 GND 73 RTS1 LEN 107 AD[15] 74 GND 108 AD[13] 75 CTS1 LIIC CLK 109 AD[11] 76 DTR1 LIIC DAT 110 AD[09] 77 DSR1 EX 111 GND 78 DCD1 EX 112 AD[06] 79 12C DATA 113 AD[04] 80 GND 114 AD[02] 81 12C CLK 115 AD[00] 82 GND 116 GND 83 HDSEL 117 FRAME 84 GND 118 TRDY 85 WPROT 119 STOP 86 EBOXS2 /GND 120 PAR 87 ERDY 121 CBE0 88 EBOXL /GND 122 CBE1 89 FLUSHREQ 123 GND 90 MEMACK 124 KB CLK
Continued
Connector Pin Assignments A-5
Table A-7 continued
Pin Signal Pin Signal
125 RSVD1/M CTRL2 151 AD[12] 126 XSC/L OUT SN 152 AD[10] 127 RSVD2/M OFF HOOK 153 AD[08] 128 KB DATA 154 GND 129 MGND 155 AD[07] 130 STANDBY 156 AD[05] 131 M DRZP 157 AD[03] 132 M DRXN 158 AD[01] 133 VBATT 159 GND 134 EXPGNT 160 CBE3 135 VBATT 161 CBE2 136 GND 162 IRDY 137 VBATT 163 DEVSEL 138 PS2 DATA 164 LOCK 139 VBATT 165 OERR 140 AD[25] 166 SERR 141 VBATT 167 GND 142 AD[27] 168 RSVD3 143 VBATT 169 M 12C CLK 144 AD[23] 170 M 12C DATA 145 GND 171 M RING 146 AD[21] 172 MGND 147 AD[19] 173 M DXTN 148 AD[17] 174 GND 149 GND 175 M DXTP 150 AD[14] 176 MSTRBAT
A-6 Connector Pin Assignments
Table A-8
External Keyboard/Mouse Connector
Connector Pin Signal
65
43
KEY
1
2
1 2 3 4 5 6
Keyboard/Mouse DATA Keyboard/Mouse DATA Ground +5 VDC Keyboard/Mouse CLK Keyboard/Mouse CLK
Table A-9
External Monitor Connector
45
10
KEY
1623
87
1112131415
Pin Signal Pin Signal
1 Red Analog 9 NC 2 Green Analog 10 Ground 3 Blue Analog 11 NC 4 NC 12 DDC Data 5 Ground 13 Horizontal Sync 6 Ground 14 Vertical Sync 7 Ground 15 DDC Clock 8 Ground
Connector Pin Assignments A-7
appendix
B
POWER CORD SET REQUIREMENTS
3-Conductor Power Cord Set
The wide range input feature of the Compaq Notebook 100 Personal Computer permits it to operate from any line voltage from 100 to 120 or 220 to 240 volts AC.
The power cord sets received with the computers meets the requirements for use in the country where the equipment is purchased.
Power cord sets for use in other countries must meet the requirements of the country where the computer is used. For more information on power cord set requirements, contact a Compaq authorized reseller or service provider.
General Requirements
The requirements listed below are applicable to all countries:
1. The length of the power cord set must be at least 5.00 feet (1.5 m) and a maximum of 6.50 feet (2.0 m).
2. All power cord sets must be approved by an acceptable accredited agency responsible for evaluation in the country where the power cord set will be used.
3. The power cord set must have a minimum current capacity of 10A and a nominal voltage rating of 125 or 250 volts AC, as required by each country’s power system.
4. The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector, for mating with appliance inlet on the back of the computer.

Power Cord Set Requirements B-1

Country-Specific Requirements
3-Conductor Power Cord Set Requirements—By Country
Applicable Note
Country Accredited Agency
Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan JIS 3 The Netherlands KEMA 1 Norway NEMKO 1 Sweden SEMKO 1 Switzerland SEV 1 United Kingdom BSI 1 United States UL 2
Numbers
Notes
1. The flexible cord must be <HAR> Type HO5VV-F, 3-conductor,
1.0 mm2 conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it will be used.
2. The flexible cord must be Type SPT-3 or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) configuration.
3. The appliance coupler, flexible cord, and wall plug must bear a "T" mark and registration number in accordance with the Japanese Dentori Law. The flexible cord must be Type VCT or VCTF, 3-conductor, 0.75mm2 conductor size. The wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (15A, 125V) configuration.
B-2 Power Cord Set Requirements

INDEX

A
AC Adapter
spare part number, 3-8
specifications, 6-6 advance CPU controls menu, 1-14 applications. See software
B
base enclosure
illustrated, 3-2
spare part number, 3-3 battery pack, 5-4
illustrated, 3-2
Li ion
spare part number, 3-3, 5-4 specifications, 6-7
NiMH
spare part number, 3-3, 5-4 specifications, 6-7
removing, 5-4
C
Cable Kit
components
illustrated, 3-2, 3-6
spare part number, 3-3, 3-6 cables, 4-2 CD-ROM drive, 5-10
cable
disconnecting
from CD-ROM drive, 5-11 from system board, 5-10
illustrated, 3-2, 3-6 illustrated, 3-2, 3-7 removing, 5-10 spare part number, 3-3, 3-7, 5-10 specifications, 6-6
components menu, 1-11 computer
features, 1-3 major components
illustrated, 3-2 models, 1-2
specifications, 6-1 configuration record utility, 1-16 connector
pin assignments, A-1 connectors, 4-2
D
design overview, 1-24 diagnostics, 1-19 disassembly
preparing the computer, 5-3
reference chart, 5-2 diskette drive, 5-38
cable
disconnecting
from diskette drive, 5-40 from system board, 5-36
illustrated, 3-6 illustrated, 3-2, 3-7 installing, 5-41 removing, 5-39 spare part number, 3-3, 3-7, 5-38 specifications, 6-5
disks menu, 1-9 display assembly, 5-27
cables
disconnecting, 5-28 DIP switches
setting, 5-31 components, 1-20 illustrated, 3-2 removing, 5-29 video cable
routing, 5-30
12.1-inch
spare part number, 3-3, 5-27
12.1-inch, STN
specifications, 6-3
12.1-inch, TFT
specifications, 6-3
docking
connector
pinout, A-4
DOS. See MS-DOS drivers. See device drivers
Index I-1
E
electrostatic
preventing damage, 4-3 voltage levels, 4-6
EMI shield
illustrated, 3-2 removing, 5-23
spare part number, 3-3, 5-23 ESD. See electrostatic discharge exit menu, 1-15 external monitor
connector
illustrated, 1-23
F
fan assembly, 5-8
illustrated, 3-2
removing, 5-9
spare part number, 3-3, 5-8 fan/CPU cover
illustrated, 3-2, 3-4
removing, 5-8 features, 1-3 floppy disk drive. See diskette drive
G
gathering information, 1-17 grounding
equipment, 4-5
methods, 4-5
H
hard drive
illustrated, 3-2, 3-7
removing, 5-19
spare part number, 3-3, 3-7, 5-19
specifications, 6-4 Hardware Kit
components
illustrated, 3-2, 3-5
spare part number, 3-3, 3-5 headphone
jack
pinout, A-2
Hibernation, 1-6
hinge covers
illustrated, 3-2, 3-4 removing, 5-27
I
I/O address. See input/output address I/O cover
illustrated, 3-2, 3-4 removing, 5-32
IRQ. See interrupt requests
K
keyboard
cable
disconnecting, 5-22
connector
illustrated, 1-23
pinout, A-7 illustrated, 3-2 removing, 5-21 spare part number, 3-3, 5-21
L
left side components, 1-21
M
mass storage devices
illustrated, 3-7 spare part numbers, 3-7
memory, 5-15
expansion board
installing, 5-16
removing, 5-15
128 MB
spare part number, 5-15
32 MB
spare part number, 3-8, 5-15
64 MB
spare part number, 5-15
menu, 1-9 options, 1-4 upgrade table, 1-4
microphone
jack
pinout, A-2
I-2 Index
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