compaq notebook 100 series User Manual
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Product Description1-19 COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc 1.7 Diagnostics Using Compaq Diagnostics Access Compaq Diagnostics for Windows by selecting StartSettingsControl PanelCompaq 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 menuExit.
1-20Product Description COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc 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 The TouchPad moves the mouse cursor, selects, and activates. The touch buttons function like the left and right mouse button on an external mouse. 2 Keyboard Provides numeric keypad, 12 function keys, and special fn keys 3 Stereo speakers Produce high-quality stereo sound. 4 Activity lights Indicate AC/battery power, mass storage, and keyboard lock status. 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 the computer and another infrared- equipped device using an infrared beam. 10 Diskette drive Accepts 3.5-inch diskettes.
Product Description1-21 COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc 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 the computer to a fixed object to prevent theft. 2 Power button Turns the computer on or off or exits Standby. 3 RJ-11 jack (internal modem models only) Connects the modem cable to an internal modem. 4 PC Card slot Supports 32-bit (CardBus) and 16-bit PC Cards. 5 Battery pack Accepts either the standard 9-cell NiMH or optional 8-cell Li ion battery packs. The battery pack supplies power to the computer of external power is not available.
1-22Product Description COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc 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 the built-in microphone. 2 Stereo speaker/ headphone jack 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
Product Description1-23 COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc Table 1-4 continued Item Component Function 3 Universal Serial Bus (USB) connector 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. 4 Parallel connector Connects an optional parallel device, such as a printer. 5 Serial connector Connects optional serial devices, such as a mouse. 6 External monitor connector Connects an optional external monitor, overhead projector, or TV adapter. 7 Keyboard/mouse connector 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. 8 AC Adapter connector Connects the AC power adapter.
1-24Product Description COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/28/00 9:32 AM Part Number: 177485-001 File name: CH01.doc 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.
Troubleshooting2-1 COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/29/00 7:07 AM Pages: 8 Words: 1325 Template: c:\msoffice emplates ef ef.dot Part Number: 177845-001 File name: CH02.doc 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?
2-2Troubleshooting COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/29/00 7:07 AM Part Number: 177845-001 File name: CH02.doc 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
Troubleshooting2-3 COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/29/00 7:07 AM Part Number: 177845-001 File name: CH02.doc 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
2-4Troubleshooting COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED Writer: David Calvert Saved by: David Calvert Saved date: 03/29/00 7:07 AM Part Number: 177845-001 File name: CH02.doc 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.