Dell Inspiron 3000 Service Manual
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System Overview 1-3 Physical Description Figure 1-1. Front View of the Portable Computer Figure 1-2. Back View of the Portable Computer display speakers (2) touch pad buttons (2)power/suspend indicator display latch keyboard touch pad power button options bay main battery status display panel display close/suspend button microphone PC Card slots (2) serial connector monitor connector infrared port expansion connectoraudio jacks (3)hard-disk drive USB connector parallel connector PS/2 connector AC adapter connectorsecurity cable slot
1-4 Dell Inspiron 3000 Series Service Manual Status Display . Figure 1-3. Status Display Panel The status display panel is located directly above the keyboard. This panel shows icons that indicate as pects of keyboard operation or save-to-RAM sus- pend mode; CD-ROM or DVD-ROM drive, hard-disk drive, diskette drive, and PC Card activit y; and status of the power source (AC power or batteries). Keyboard Indicators The following icons indicate the status of the keyboard and whether the com- puter is in suspend mode. Caps Lock Indicator Press to activate this feature. Press again to deactivate the feature. Num Lock Indicator Press to activate this feature. Press a gain to deactivate this feature. Pad Lock Indicator A ppears when the embedded numeric keypad is active. Press to activate the embedded numeric ke ypad. Then press and hold and press to lock the keypad. Press and hold to to ggle between the letter and the number keys. To deactivate the key- pad, press . Then press and hold and press to unlock the ke ypad. Scroll Lock Indicator Press to activate this feature. Press a gain to deactivate this feature. Suspend Mode When all indicators are present and appear in sequence, the com puter is in save-to-RAM suspend mode. CD-ROM/DVD-ROM/Hard-Disk Drive Indicator This indicator blinks when data is being transferred to or from the CD-ROM, DVD-ROM, or hard-disk drive.
System Overview 1-5 Diskette-Drive Access Indicator This indicator blinks when data is being transferred to or from the diskette drive in the options bay. PC Card Indicator This indicator blinks when the computer is accessing data from an installed PC Card or Cards. AC Power Indicator This indicator appears when the computer is receiving power through an AC power adapter. •If the icon is present but not blinking, the computer is on but the battery is not charging. •If the icon is blinking, the computer is on and the battery is charging. Battery Activity Indicator This indicator appears when there are batteries in the computer. If a battery is installed in the main battery compartment, the upper triangle appears. If a secondary battery is installed in the options bay, the lower triangle appears. If either triangle is blinking, the battery is in use or charging. If one of the triangles is not blinking, the battery it represents is installed but not in use. Battery Status Indicator The battery status indicator reflects the state of the main or secondary battery in the computer when the computer is off. No indicator means there is no battery (main or secondary) in the computer, or if present, the battery has been discharged.
1-6 Dell Inspiron 3000 Series Service Manual Battery Charge Gauge There is a battery charge gauge on the main and secondary battery. The charge gauge has four charge-level indicator lights that indicate how much battery charge remains. Each light indicates approximately 25 percent battery charge. Press the status button to the right of the lights to check the total battery charge. If none of the lights are on, the battery has no charge left.CAUTION: If only one or none of the charge-level indicator lights are lit, the battery is almost completely discharged. Do not use the battery unless the computer is connected to AC power or unless you install a sec- ond charged battery. •The AC power indicator with the battery status in- dicator means the battery is defective. •An indicator with one bar on the left means a battery is too hot. Allow the battery to cool to room temperature. •The AC power indicator with the battery status in- dicator and one bar means that the battery is too hot (60° C [140° F] or more) to start charging. Charg- ing starts automatically when the battery cools to below 45° C. •An indicator with no bars means that battery power is low (about 90 percent depleted). This is the first low- battery indication and the computer warns the user with three short, audible beeps. There are about 10 minutes of battery life remaining. •A blinking indicator with no bars means that battery power is critically low (about 95 percent depleted) and needs recharging. There are about 5 minutes of battery life remaining. •An indicator with bars on the right side of the icon indicates the percentage of battery life remaining. Each bar equals 10 percent of battery life.
System Overview 1-7 Figure 1-4. Battery Charge Gauge NOTE: Figure 1-4 shows a main battery. For the secondary battery, the same button and lights are present, but are located on top of the battery and can be seen only when the secondary battery is out of the computer. System Power The power button controls power to the system. The computer receives power from either the AC ada pter connected to an AC power source or from up to two batteries. If you use the AC adapter, constant power is available to the com- puter. If you use one or two batteries, the system has built-in power mana gement features that extend battery life by removing power from parts of the com puter that are not being used. Power Conservation Attach the AC power adapter to the computer, whenever possible, to conserve batter y power. When the AC adapter is attached, the battery is charged while the com puter uses AC power. The Power Menu of the Setu p program has power conservation features. To o pen the Main Menu of the Setup program, Press during the boot process. When activated, each power conservation feature turns off or slows down one or more functions while the com puter is idle. The power conservation features are as follows: •Standby mode — To activate this feature, select the Standby Time-Out o ption in the Power Menu of the Setup program. To deactivate the feature, move the cursor or press any key on the built-in or external keyboard. •Save-to-RAM suspend mode — To activate this feature, press or set the Sus pend Time-Out option in the Power Menu of the Setup pro- gram. When save-to-RAM suspend mode is activated, the icons cycle throu gh the keyboard indicators area of the status display panel. To deacti- vate this feature, press the power button. The computer may take several seconds to return to normal o peration. Use the Resume On Modem Ring o ption in the Power Menu of the Setup program to enable the computer to automaticall y answer calls to external modems attached to the computer’s serial port or to determine how long the computer remains in save-to-RAM sus pend mode before resuming normal operation. indicator lights status button
1-8 Dell Inspiron 3000 Series Service Manual •Save-to-disk suspend mode — To activate this feature, press (or on the French keyboard) or set the Suspend Time-Out option in the Power Menu of the Setup program. To resume using the computer, press the power button. The computer may take several seconds to return to nor- mal operation. If you connect or remove devices while the computer is in save-to-disk suspend mode, the computer automatically recognizes the newly connected devices when it resumes normal operation. If you encoun- ter problems with a PC Card after resuming from save-to-disk suspend mode, remove and reinsert the PC Card. When the battery is nearly depleted, the computer enters save-to-disk suspend mode to preserve system data. Interrupt Assignments Table 1-1. Interrupt Assignments IRQ Line Used/Available IRQ0 Generated by the system timer IRQ1 Generated by the keyboard controller to signal that the keyboard output buffer is full IRQ2 Cascade to second interrupt controller IRQ3 Reserved IRQ4 Reserved IRQ5 Used by the audio controller IRQ6 Generated by the diskette drive controller to indicate that the dis- kette drive requires the attention of the microprocessor IRQ7 Used by the parallel port IRQ8 Generated by the system RTC IRQ9 Software redirect to INT0A IRQ10 Reserved IRQ11 Reserved IRQ12 Generated by the keyboard controller to indicate that the output buffer of the integrated touch pad or external PS/2 mouse is full IRQ13 Used by the math coprocessor on the microprocessor IRQ14 Generated by the hard-disk drive to indicate that the drive requires the attention of the microprocessor IRQ15 Reserved
System Overview 1-9 Technical Specifications Table 1-2. Technical Specifications Microprocessor Microprocessor type Inspiron 3000 M166ST, M200ST, M233ST, M233XT, and M266XT: Intel Pentium micro- processor with MMX technology Inspiron 3200 D233XT and D266XT: Intel Pentium II microprocessor with MMX technology Microprocessor speed Inspiron 3000 M166ST, M200ST, M233ST, M233XT, and M266XT: 166, 200, 233, or 266 MHz Inspiron 3200 D233ST, D233XT, and D266XT: 233 or 266 MHz Internal cache memory 32 KB External cache 512-KB write-back SRAM (256-KB write-back SRAM for the M166ST) Math coprocessor internal to the microprocessor Chip Set and Bus System chip set Inspiron 3000 M166ST, M200ST, M233ST, M233XT, and M266XT: Intel 430TX PCIset Inspiron 3200 D233ST, D233XT, and D266XT: Intel 440BX PCIset Data bus width 64 bits DRAM bus width 64 bits Address bus width 32 bits Flash EPROM 2 Mbits PC Card PCI controller Texas Instruments PCI 1131 cardbus controller PC Card connectors two (supports two type I or type II cards or one type III card) Cards supported 3.3- and 5-V
1-10 Dell Inspiron 3000 Series Service Manual PC Card (continued) PC Card connector size 68 pins Data width (maximum) 32 bits Memory Architecture SDRAM Memory module capacities16-, 32-, and 64-MB SODIMMs Standard RAM 32 MB (16 MB of nonremovable memory on the main board and a 16-MB 3.3-V memory module in one of the two memory module sockets on the main board). Maximum RAM 144 MB Memory access time/ clock frequency 83 MHz BIOS address F000:0000 Connectors Serial (DTE) one 9-pin connector; 16,550-compatible UART, 16-byte buffer Parallel one 25-hole connector; normal (unidirectional), bidirectional, EPP 1.9, or ECP Monitor one 15-hole connector PS/2 keyboard/mouse one 6-pin mini-DIN Infrared one IrDA 1.1-compliant port Expansion connector 240 pins Audio microphone; headphones/speaker; line-in USB one 4-pin connector Table 1-2. Technical Specifications (continued)
System Overview 1-11 Audio Audio type Sound Blaster Pro-compatible voice and music functions Audio controller Crystal 4237B Conversion 16 bit (stereo analog-to-digital and digital-to-analog) FM music synthesizer 20-voice, 72-operator Interfaces: Internal ISA bus External microphone (minijack, mono); headphones/speaker (minijack); line-in Internal speaker amplifier 1.5 W Controls volume can be controlled through key combina- tions and software application menus Video Video type 64-bit (128-bit hardware accelerated) PCI Video controller (M166ST, M200ST, M233ST, M233XT, M266XT) NeoMagic 2160 Video controller (D233ST, D233XT, D266XT) NeoMagic 2160B Video memory 2 MB equivalent 12.1-Inch Display Type (M166ST, M200ST, M233ST, D233ST) active-matrix color (TFT) Dimensions: Height 184.5 mm (7.3 inches) Width 246.0 mm (9.7 inches) Diagonal 307.5 mm (12.1 inches) Maximum resolution 800 x 600 pixels; 16 million colors Response time (typical) 30 ms Table 1-2. Technical Specifications (continued)
1-12 Dell Inspiron 3000 Series Service Manual 12.1-Inch Display (continued) Operating angle 0° (closed) to 180° Dot pitch 0.264 mm Power consumption 2.35 W Controls brightness can be controlled through key combinations 13.3-Inch Display Type (M233XT, M266XT, D233XT, D266XT) active-matrix color (TFT) Dimensions: Height 203 mm (8.0 inches) Width 271 mm (10.7 inches) Diagonal 338 mm (13.3 inches) Maximum resolution 1024 x 768 pixels; 64,000 colors Response time (typical) 30 ms Operating angle 0° (closed) to 170° Dot pitch 0.264 mm Power consumption 3.9 W Controls brightness can be controlled through key combinations Keyboard Number of keys 87 (U.S. and Canada); 88 (Europe); 88 (Japan) Key travel 3.0 ± 0.5 mm (0.12 ± 0.02 inch) Key spacing 19.1 mm (0.75 inch) Layout QWERTY/AZERTY/Kanji Touch Pad Interface PS/2-compatible X/Y position resolutions (graphics table mode) 20 points/mm (500 points/inch) Table 1-2. Technical Specifications (continued)