Dell Inspiron 7000 Service Manual

							System Overview 1-3
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Three status lights are located in the indicator panel directly above the key-
board (see Figure 1-3):
‡Num Lock: Solid green light when Num Lock is on. Press  to 
turn this feature on or off. 
‡Caps Lock: Solid green light when Caps Lock is on. Press  to 
turn this feature on or off.
‡Scroll Lock: Solid green light when Scroll Lock is on. Press  to 
turn this feature on or off.
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Five additional status lights are located on the front of the unit, three in the 
indicator panel below the display latch and two on the left side (see Figure 1-4):
‡System power: Solid green light when the system is on; blinking green 
light when system is in suspend state.
PC Card slots serial connector
monitor connectorinfrared port
docking connector
audio jacks (3)
USB connector parallel connector
PS/2 connectorAC adapter 
connector
speaker air exhaust
S-video TV connector
num lockcaps lock scroll lock 
						

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‡Hard-disk drive activity: Blinking green light as the drive is being accessed.
‡Battery status: 
— Solid green light when the battery is fully charged.
— Blinking green light when the battery is charging.
— No light when the battery is discharging.
— Solid amber light when the battery charge is low (7 percent life 
remaining).
— Blinking amber light when the battery charge is critically low (1.5 per-
cent life remaining). The system beeps when this level is first reached.
‡Floppy disk drive activity: Blinking green light as the drive is being 
accessed.
‡CD-ROM or DVD-ROM drive activity: Blinking green light as the drive is 
being accessed.
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The battery charge gauge (see Figure 1-5) on the rear of the main and second-
ary batteries has five 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 bat-
tery charge. If none of the lights are on, the battery has no charge left.
system powerhard-disk 
drive activitybattery status 
						

							System Overview 1-5

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The power button controls power to the system. The computer receives power 
from either the AC adapter connected to an electrical outlet or from up to two 
batteries. The system has built-in power management features that remove 
power from parts of the computer that are not being used.
Attach the AC power adapter to the computer, whenever possible, to conserve 
battery power. When the AC adapter is attached, the battery is charged while 
the computer uses AC power. 
The Power M enu of the Setup program has power conservation features. To 
open the Main Menu of the Setup program, press  during the boot pro-
cess. When activated, each power conservation feature turns off or slows 
down one or more functions while the computer is idle. 
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The power management mode has four settings:
‡Select Customized (the default) to control the power-saving time-outs 
individually.
‡Select Disabled to turn off power management. 
indicator lights
status button 
						

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‡Select Maximum Performance to conserve power but allow greatest sys-
tem performance. When this setting is selected, the Standby
Time-Out 
option is set automatically to 4 minutes, and the
Suspend Time-Out 
option is disabled. The Smart CPU Mode option is set automatically to Off.
‡Select Maximum Power Savings to conserve the greatest amount of sys-
tem power. When this setting is selected, the Standby
Time-Out option is 
set automatically to 1 minute, and the
Suspend Time-Out option is set 
automatically to 5 minutes. The Smart CPU Mode option is set automati-
cally to On.
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Smart CPU Mode allows the computer to slow down the microprocessor 
automatically if it is not being used. Settings for this option are:
‡On — Allows the computer to slow down the microprocessor when it is 
inactive
‡Off (the default) — Keeps the microprocessor running at its normal operat-
ing speed regardless of microprocessor inactivity
To increase battery operating time, set the Smart CPU Mode option to On.
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Standby Time-Out conserves battery power by turning off various devices in 
the system, including the display, but leaves the computer ready to resume 
operations immediately. Use Standby Time-Out when you leave the com-
puter unattended for less than a few minutes. 
Standby Time-Out lets you determine how long the computer remains idle 
(no I/O activity) before activating standby mode to conserve battery power. 
Settings for this option are Disabled, 1 min., 2 min., 4 min., 6 min., 8 min., 
12 min., and
16 min.
To increase battery operating time, set this option to a lower number of min-
utes. Press any key on the built-in keyboard to resume normal computer 
operation.
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Suspend Time-Out lets you determine how long the computer remains idle 
(no I/O activity) before activating suspend mode. Settings for this option are 
Disabled, 5 min., 10  m i n ., 15 min., 20 min., 30 min., 40 min., and 60 min.
To increase battery operating time, set this option to a lower number of 
minutes. 
						

							System Overview 1-7
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The Save-to-disk option under Suspend Mode copies all system data to a 
reserved area on the hard-disk drive and then turns off all power to the com-
puter. When you resume normal operation, the same programs will be running 
and the same files will be open that were loaded before you activated this 
mode. Use Save-to-disk suspend mode to conserve battery power or to pre-
serve system data by quickly saving it to the hard-disk drive if you are about to 
run out of battery power. 
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Table 1-1 lists the interrupt assignments.
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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 Used by the communications port (COM1)
IRQ5 Used by the audio controller
IRQ6 Generated by the diskette drive controller to indicate that the 
diskette drive requires the attention of the microprocessor
IRQ7 Used by the parallel port
IRQ8 Generated by the system real-time clock
IRQ9 Free
IRQ10 Generated by the USB
IRQ11 Generated by the cardbus controller
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 Generated by the secondary IDE controller (CD-ROM drive or 
DVD-ROM drive) to indicate that the drive requires attention of 
the microprocessor 
						

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Table 1-2 lists the technical specifications for the Inspiron 7000.
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Microprocessor type . . . . . . . Intel Mobile Pentium II microprocessor with 
MMX technology
Microprocessor speed . . . . . . Inspiron 7000 D266XT or D266GT: 266 MHz
Inspiron 7000 D300GT: 300 MHz
Internal cache  . . . . . . . . . . . . 32 KB 
External cache . . . . . . . . . . . . 512-KB pipelined-burst SRAM
Math coprocessor . . . . . . . . . internal to the microprocessor
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System chip set . . . . . . . . . . . Intel Mobile 440BX AGP
Data bus width  . . . . . . . . . . . 64 bits
DRAM bus width . . . . . . . . . . 64 bits
Address bus width . . . . . . . . . 32 bits
Flash EPROM  . . . . . . . . . . . . 4 Mbits 
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PCI controller . . . . . . . . . . . . . Texas Instruments PCI 1220 cardbus controller
PC Card connectors . . . . . . . . two type I, two type II, or one type III 
Cards supported  . . . . . . . . . . 3.3-V and 5-V
PC Card connector size . . . . . 68 pins
Data width (maximum)  . . . . . 32 bits
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Architecture . . . . . . . . . . . . . . SDRAM
Memory module 
capacities . . . . . . . . . . . . . . . . 32- and 64-MB
Standard RAM . . . . . . . . . . . . 32-MB SODIMM (13.3-inch display)
64-MB SODIMM (14.1-inch display)
Maximum RAM . . . . . . . . . . . 192 MB
Memory access time/
clock frequency . . . . . . . . . . . 66 MHz
BIOS address. . . . . . . . . . . . . F000:0000  
						

							System Overview 1-9
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Serial (DTE)  . . . . . . . . . . . . .  one 9-pin connector; 16550-compatible, 
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 connector
Infrared  . . . . . . . . . . . . . . . .  one IrDA 1.1 port
Expansion connector . . . . . .  240 pins
TV-out. . . . . . . . . . . . . . . . . .  one 7-pin S-video
Audio . . . . . . . . . . . . . . . . . .  microphone, headphones/speakers, and line-
out jacks
USB . . . . . . . . . . . . . . . . . . .  one 4-pin connector
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Audio type . . . . . . . . . . . . . .  Sound Blaster Pro-compatible voice and music 
functions, HRTF 3D positional audio, hardware 
wavetable
Audio controller . . . . . . . . . .  ESS Technology Maestro-2
Conversion . . . . . . . . . . . . . .  20 bit (stereo analog-to-digital and 
digital-to-analog)
Hardware wavetable
synthesizer. . . . . . . . . . . . . .  64-voice
Interfaces:
Internal . . . . . . . . . . . . . .  PCI bus, microphone, dual stereo speakers
External  . . . . . . . . . . . . .  microphone (minijack), headphones, line-in
Internal speaker 
amplifier . . . . . . . . . . . . . . . .  1.0 W stereo (0.5 W per speaker)
External microphone 
input voltage range  . . . . . . .  280 mV peak-to-peak
Line/audio input voltage 
range  . . . . . . . . . . . . . . . . . .  2.8 V peak-to-peak
Controls . . . . . . . . . . . . . . . .  volume can be controlled through thumb wheel, 
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Video type . . . . . . . . . . . . . . . AGP 2X with sideband signals, hardware 3D 
accelerator, DVD motion compensation, 
ImpacTV-2 quality TV output
Video controller  . . . . . . . . . . . ATI 3D Rage LT Pro AGP 2X
Video memory . . . . . . . . . . . . 4 or 8 MB 100 MHz SGRAM
LCD interface . . . . . . . . . . . . . 65 MHz LVDS
TV support . . . . . . . . . . . . . . . NTSC or PAL in S-video and composite modes
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Type . . . . . . . . . . . . . . . . . . . . active-matrix color (TFT)
Dimensions (active area):
Height  . . . . . . . . . . . . . . . 214 mm (8.4 inches)
Width   . . . . . . . . . . . . . . . 296.5 mm (11.7 inches)
Diagonal . . . . . . . . . . . . . . 337.8 mm (13.3 inches)
Maximum resolution . . . . . . . 1024 x 768 pixels; 4 billion colors as supported 
by application software
Response time (typical) . . . . . 50 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
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Type . . . . . . . . . . . . . . . . . . . . active-matrix color (TFT)
Dimensions (active area):
Height  . . . . . . . . . . . . . . . 228.5 mm (8.9 inches)
Width . . . . . . . . . . . . . . . . 299.5 mm (11.8 inches)
Diagonal . . . . . . . . . . . . . . 358.1 mm (14.1 inches)
Maximum resolution . . . . . . . 1024 x 768 pixels; 4 billion colors as supported 
by application software
Response time (typical) . . . . . 40 ms
Operating angle . . . . . . . . . . . 0° (closed) to 170°
Dot pitch  . . . . . . . . . . . . . . . . 0.279 mm
Power consumption . . . . . . . . 4.6 W 
Controls . . . . . . . . . . . . . . . . . brightness can be controlled through key 
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							System Overview 1-11
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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
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Interface. . . . . . . . . . . . . . . .  PS/2-compatible
X/Y position resolutions 
(graphics table mode)  . . . . .  20 points/mm (500 points/inch)
Size:
Thickness . . . . . . . . . . . .  4.65 mm (0.18 inch) at highest component
Width   . . . . . . . . . . . . . .  64-mm (2.52-inch) sensor-active area
Height  . . . . . . . . . . . . . .  47.0-mm (1.85-inch) rectangle 
with 0.5-mm (0.02-inch) tabs
Weight . . . . . . . . . . . . . .  15 g (0.52 ounce) ± 0.5 g (0.001 ounce)
Powe r :
Supply voltage . . . . . . . .  5 V ± 10 %
Supply current . . . . . . . .  4 mA (maximum operating current)
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Type . . . . . . . . . . . . . . . . . . .  lithium ion
Maximum dimensions:
Height  . . . . . . . . . . . . . .  23.8 mm (0.94 inch)
Depth . . . . . . . . . . . . . . .  148.2 mm (5.83 inches)
Width . . . . . . . . . . . . . . .  116.2 mm (4.58 inches)
Weight . . . . . . . . . . . . . . . . .  0.60 kg (1.32 lb)
Voltage . . . . . . . . . . . . . . . . .  14.4 VDC
Capacity . . . . . . . . . . . . . . . .  65 WH 7DEOH7HFKQLFDO6SHFLILFDWLRQV
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Charge time (approximate):1
Computer on  . . . . . . . . . . 3.5 hours
Computer off . . . . . . . . . . 3 hours
Operating time 
(approximate)
1. . . . . . . . . . . .2.5 to 3.5 hours with one battery; 
5 to 7 hours with two batteries
Life span (approximate)
1 . . . .500 discharge/charge cycles
Ambient temperature range:
Charge . . . . . . . . . . . . . . . 0° to 40°C (32° to 104°F)
Discharge . . . . . . . . . . . . . 0° to 60°C (32° to 140°F)
Storage  . . . . . . . . . . . . . . –20° to 50°C (–4° to 122°F)
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Input voltage  . . . . . . . . . . . . . 90 to 264 VAC 
Input current (maximum) . . . . 1.5 A at 90 VAC, full load
Input frequency . . . . . . . . . . . 47 to 63 Hz
Output current . . . . . . . . . . . . 3.5 A (continuous)
Output power  . . . . . . . . . . . . 70 W
Rated output voltage . . . . . . . 20 VDC
Dimensions:
Height  . . . . . . . . . . . . . . . 29.6 mm (1.17 inches)
Width . . . . . . . . . . . . . . . . 60.0 mm (2.36 inches)
Depth . . . . . . . . . . . . . . . . 105 mm (4.13 inches)
Weight (with cables)  . . . . . . . 0.3 kg (0.66 lb)
Temperature range:
Operating . . . . . . . . . . . . . 5° to 35°C (41° to 95°F) 
Storage  . . . . . . . . . . . . . . –20° to 50°C (–4° to 122°F)
1Battery performance features such as charge time, operating time, and life span can vary 
according to the conditions under which the computer and battery are used and according to 
the configuration of the computer system.
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