Acer Aspire 1400 Service Guide

							Chapter 125
Hardware Specifications and Configurations
Processor
ItemSpecification
CPU type Intel Desktop P4 up to 1.7GHZ or Northwood upgradable
CPU package  MPGA478 package CPU
CPU core voltage 1.75V/1.5V
BIOS
ItemSpecification
BIOS vendor Phoenix
BIOS Version 1.0
BIOS ROM type Flash ROM
BIOS ROM size 512KB 
BIOS package TSOP
Supported protocols ACPI 1.0b,PC Card 95, SM BIOS 2.3, EPP/IEEE 1284, ECP/IEEE 1284 
1.7 & 1.9, PCI 2.2, PnP 1.0a,  PS/2 keyboard and mouse, USB, VESA 
VGA BIOS, CD-ROM bootable,
BIOS password control Set by setup manual
Second Level Cache
ItemSpecification
Cache controller Built-in CPU
Cache size 256KB/512KB 
1st level cache control Always enabled
2st level cache control Always enabled
Cache scheme control Fixed in write-back
System Memory
ItemSpecification
Memory controller Intel Brockdale (82845)
Standard memory size 128/256MB
DIMM socket number 2 sockets (2 banks). One is on the top and the other is on the button.
Supports memory size per socket 512MB
Supports maximum memory size 1G (by two 512MB SO-DIMM module).
Supports DIMM type Synchronous DRAM memories card
Supports DIMM Speed 133 MHz
Supports DIMM voltage 3.3V
Supports DIMM package 144-pin soDIMM
Memory module combinations You can install memory modules in any combinations as long as they 
match the above specifications. 
						

							26Chapter 1
 
NOTE: Above table lists some system memory configurations. You may combine DIMMs with various 
capacities to form other combinations. .
 
Memory Combinations
Slot 1Slot 2Total Memory
128MB/256 MB 0 MB 128MB/256 MB
128MB/256 MB 128 MB 256MB/384 MB
128MB256 MB 256 MB 384MB/512 MB
128MB/256 MB 512 MB 640MB/768 MB
LAN Interface
ItemSpecification
Supports LAN protocol 10/100 Mbps
LAN connector type RJ45
LAN connector location Rear side
Modem Interface
ItemSpecification
Data modem data baud rate (bps) 56K
Supports modem protocol V.90 MDC
Modem connector type RJ11
Modem connector location Rear side
Floppy Disk Drive Interface
ItemSpecification
Vendor & model name Mitsumi D353G
Floppy Disk Specifications
Media recognition 2DD (720KB) 2HD (1.2MB, 3-mode) 2HD (1.44MB)
Sectors/track 9 15 18
Tracks 80 80 80
Rotational speed (RPM) 300 360 300
Read/write heads 2
Encoding method MFM/FM
Power Requirement
Input Voltage (V) +5V +/- 10%
Hard Disk Drive Interface
ItemSpecification
Vendor & 
Model NameTOSHIBA 
15G 
(MK1517)IBM 15G 
(IC25N015AT
D)TOSHIBA 
20G 
(MK2018)IBM 20G 
(IC25N020AT
CS)TOSHIBA 
30G 
(MK3018)IBM 30G 
(IC25N030AT
CS)
Capacity (MB) 15000 15000 20000 20000 30000 30000
Bytes per 
sector512 512 512 512 512 512
Data heads 2 2 2 2 3 3
Drive Format
Disks111122 
						

							Chapter 127
Spindle speed 
(RPM)4200 RPM 4200 RPM 4200RPM 4200RPM 4200RPM 4200RPM
Performance Specifications
Buffer size  2048KB 512KB 2048KB 2048KB 2048KB 2048KB
Interface ATA-5 ATA-5 ATA-5 ATA-5 ATA-5 ATA-5
Max. media 
transfer rate 
(disk-buffer, 
Mbytes/s)216 235 287 216 235 287
Data transfer 
rate 
(host~buffer, 
Mbytes/s)100 MB/Sec.
Ultra DMA 
mode-5100 MB/Sec.
Ultra DMA 
mode-5100 MB/Sec.
Ultra DMA 
mode-5100 MB/Sec.
Ultra DMA 
mode-5100 MB/Sec.
Ultra DMA 
mode-5100 MB/Sec.
Ultra DMA 
mode-5
DC Power Requirements
Voltage 
tolerance5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5% 5V(DC) +/- 5%
DVD-ROM Interface
ItemSpecification
Vendor & model name Toshiba SD-C2502
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained:
  Max 3.6Mbytes/secSustained:
Max 10.8Mbytes/sec
Data Buffer Capacity 128 KBytes
Interface IDE/ATAPI
Applicable disc format DVD: DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read, single 
border)
CD:  CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, CD-I, CD-
I Bridge (Photo-CD, Video-CD) Multisession CD (Photo-CD, CD-EXTRA, CD-R, 
CD-RW), CD-R (read), CD-RW (read)
Loading mechanism Load: Manual
Release: (a) Electrical Release (Release Button)
               (b) Release by ATAPI command 
               (c) Emergency Release
Power Requirement
Input Voltage +5 V +/- 5 % (Operating) 
+/- 8 % (Start up)
Hard Disk Drive Interface
ItemSpecification 
						

							28Chapter 1
 
   
  
Audio Interface
ItemSpecification
Audio Controller CS 4299
Audio onboard or optional Built-in
Mono or Stereo Stereo
Resolution 20 bit stereo Digital to analog converter
18 bit stereo Analog to Ditial converter
Compatibility Microsoft PC98/PC99, AC97 2.1
Mixed sound source Line-in, CD, Video, AUX
Voice channel 8/16-bit, mono/stereo
Sampling rate 44.1 KHz
Internal microphone No
Internal speaker / Quantity Yes
Supports PnP DMA channel DMA channel 0
DMA channel 1
Supports PnP IRQ IRQ3, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11
Video Interface
ItemSpecification
Chip vendor ATI
Chip name M6-P
Chip voltage Core/3.3V
Supports ZV (Zoomed Video) port No
Video Resolutions Mode (for both LCD and CRT)
Resolution16 bits
(High color)32 bits
(True color)
800x600 Yes Yes
1024x768 Yes Yes
1152x864 Yes Yes
1280x1024 Yes Yes
1400x1050 
(SXGA+panel only)Ye s Ye s
1600x1200 Yes Yes
Parallel Port
ItemSpecification
Parallel port controller FDC47N227
Number of parallel port 1
Location Rear side
Connector type 25-pin D-type connector, in female type
Parallel port function control Enable/Disable/Auto (BIOS or operating system chooses 
configuration) by BIOS Setup
Note: Depending on your operating system, disabling an unused 
device may help free system resources for other devices. 
						

							Chapter 129
  
 
Supports ECP/EPP/Bi-directional (PS/2 
compatible) Yes (set by BIOS setup)
Note: When Mode is selected as EPP mode, “3BCh” will not be 
available.
Optional ECP DMA channel (in BIOS Setup) DMA channel 1 and 3
Optional parallel port I/O address (in BIOS 
Setup)3BCh, 278h, 378h
Optional parallel port IRQ (in BIOS Setup) IRQ7, IRQ5
USB Port
ItemSpecification
USB Compliancy Level 1.1
OHCI USB 1.1
Number of USB port 3
Location Rear side
Serial port function control Enable/Disable by BIOS Setup
PCMCIA Port
ItemSpecification
PCMCIA controller
PCI142
Supports card type Type-III/II 
Number of slots One type-III or Two type-II
Access location Left panel
Supports ZV (Zoomed Video) port No ZV support
Supports 32 bit CardBus  Yes (IRQ11)
System Board Major Chips
Item Controller
System core logic Intel ICH2
Super I/O controller LPC 47N227
Audio controller Crystal 4299 AC 97 codes
Video controller ATI M6-P
Hard disk drive controller ICH2
Keyboard controller pc87591
RTC ICH2
Keyboard
ItemSpecification
Keyboard controller PC87591
Keyboard vendor & model name Chicony
Total number of keypads 87/88/89 keys with 101/102 key emulation
Windows  logo key Yes
Internal & external keyboard work simultaneously Yes
Parallel Port
ItemSpecification
∅ 
						

							30Chapter 1
  
 
There are two control signals that come form system to control lamp brightness. One signal is 
named DAC_BRIG, which limits current to meet LCD lamp current specification. Another one is 
named PWM, which adjusts lamp brightness. This inverter brightness is adjusted by PWM burst 
mode. The PWM burst mode is that turning on and off the lamp at rate of 150Hz. The effective 
brightness is a function of the duty cycle.
Features
1. Wide range 9V to21V input voltage.
2. Birghtness adjustment by PWM duty mode.
Battery 
ItemSpecification
Vendor & model name Sony
Battery Type Li-ion
Pack capacity  57Wh
Cell voltage  3.7V/cell
Number of battery cell 12
Package configuration 4 cells in series, 3 series in parallel
Package voltage  14.8v
LCD Inverter Specification
This inverter is designed to light up the CCFL of LCD for Aspire 1400 notebook. It should be 
supported the following LCD panels.
No.SupplierModelTy p e
1 LG LP150x04 TFT, 15.0” XGA
2 Hanstar HSD150PX11-A TFT, 15.0” XGA
3 Unipac UB150XN01 TFT, 15.0” XGA
4 IBM ITUX97C TFT, 15.0” UXGA
5 Toshiba LTM14C506 TFT, 14.1” XGA
6 Unipac UB141X03 TFT, 14.1” XGA
7 Hanstar HSD141PX11-B TFT, 14.1” XGA
8 CPT CLAA150PA01 TFT, 15.0” SXGA+
9 Hanstar HSD1509K11-A TFT, 15.0” SXGA+
10 Sharp LQ150X1LH63 TFT 15.0” XGA 
						

							Chapter 131
3. Automatic brightness compensation for input voltage variation.
NOTE:  Please pay attention to the fellowing:
*1. Limited lamp maximum current by DAC_BRIC signal: 
     When DAC_BRIG voltage is 0V and INV_PWM enables (100%), lamp has max. current.
    When DAC_BRIG voltage is 3.3V and INV_PWM enables (100%), lamp has min. current.
    DAC_BRIG signal comes from system chipset with internal resistance of 3K
Electrical Characteristics
No
.ParameterSymbolMin.Ty p .Max.UnitConditions
1 Input 
voltageNV_PWR 9 14.8 21 V  
2 Input 
currentIin -- 0.33 -- A  
3
Lamp 
currentIL 2.7 -- 6.6 mA *Note 1
4
Frequencyf50
5560KHz
KHz* Note 2
5 Output 
powerPout -- -- 4.5 W
6 Efficiencyη80% -- -- --
7 Starting 
voltageVs 1500 -- --- V
8 Starting 
timeTvs 1 -- 2 Sec
9 Dispoff# 2.8 3.3 3.6 V Backlight on/off signal
0 0.5 0.8 V Low level
10 Limited 
lamp 
maximum 
currentDAC-
BRIG0 3.3 V *Note 1
11 P W M  
signal 
*Note 4INV_PW
M142 150 158 Hz PWM signal frequency
30 3.3 3.6 V PWM signal amplitude
40 -- 100 %
12 Lamp 
current 
over-shootI zero-PK -- -- 11 mA Line transient (10.8V to 
21V/100us) and turn on 
transient
13 Current 
Waveform 
factor1.27 1.56 Multiple or 
*10
14 Unbalance 
Rate-10% 0 +10% Mulitple
DutyTon
Period ------------------- =
rmspII
2
rmspII
−
rmsp pII I
−−
Ω 
						

							32Chapter 1
*2. Inverter operating frequency should be within specification (51-59kHz) at max. and min. 
brightness load.
*3. INV_PWM enable implies INV_PWM signal is High level (On duty cycle is 100%). It it a square 
wave of 150Hz to adjust backlight brightness that is a function of PWM duty cycle. Backlight 
brightness is maximum value under INV_PWM at 100% and brightness is minimum under 
INV_PWM at 40%.
*4.The system interface signals belong to 3.3V.
*5. Please make sure open lamp output voltage should be within starting voltage specification.
*6. Inverter should pass human body safety test.
*7. Inverter should no smoking by any component open/short test.
*8. Transformer voltage stress should not be over 85% under any condition.
    (turn on overshoot transient and line transient.)
*9. Audio noise should be less than 36dB at 10cm distance.
.
Thermal
All components on inverter board should follow below rules:
1. Component using conditions (component stress) must be within component specification 
including voltage rating, current rating, temperature etc.
2. Component temperature shold follow below:
!∆T 
						

							Chapter 133
Supports colors 262K 262K 262K 262K 262K
Optical Specification
Brightness control keyboard 
hotkeykeyboard 
hotkeykeyboard 
hotkeykeyboard 
hotkeykeyboard 
hotkey
Contrast control No No No No No
Suspend/Standby 
controlYesYesYesYesYes
Electrical Specification
Supply voltage for 
LCD display (V)3.3 3.3 3.3 3.3 3.3
Supply voltage for 
LCD backlight 
(Vrms)690 690 690 690 690
AC Adapter
ItemSpecification
Vendor & model name ADAPTER ADP-90FB RevF90W 3 PINS
Input Requirements
Maximum input current (A, 
@90Vac, full load)1.8 A    @   90Vac
0.9 A    @ 180Vac
Nominal frequency (Hz) 47 - 63
Frequency variation range (Hz) 47 - 63
Nominal voltages (Vrms) 90 - 264
Inrush current The maximum inrush current will be less than 50A and 100A when the adapter 
is connected to 115Vac(60Hz) and 230Vac(50Hz) respectively.
Efficiency  It should provide an efficiency of 83% minimum, when measured at maximum 
load under 115V(60Hz).
Output Ratings (CV mode)
DC output voltage  +18.8V~20.0V including the effects of line voltage variation, load current, 
ripple and noise
Noise + Ripple  300mvp-pmax (20MHz bandwidth) for resistor load
Output current  0 A (min.)       4.74 A (max.)
Output Ratings (CC mode)
DC output voltage 18.8~20
Constant output 4.74A
Dynamic Output Characteristics
Start-up time 3 sec. (@115Vac)
Hold up time 5 ms min. (@115 Vac input, full load)
Over Voltage Protection (OVP) 26 V
Short circuit protection Output can be shorted without damage, and auto recovery
Electrostatic discharge (ESD) 15kV (at air discharge)
8kV (at contact discharge)
Dielectric Withstand Voltage
Primary to secondary 4242 Vdc for 1 second
Leakage current  100uA at 254Vac
Regulatory Requirements 1. FCC class B requirements(USA) 
2. VDE class B requirements(German) 
3. VCCI classII requirements(Japan)
LCD
ItemSpecification 
						

							34Chapter 1
ACPI modePower Management
Mech. Off (G3) All devices in the system are turned off completely.
Soft Off (G2/S5) OS initiated shutdown. All devices in the system are turned off 
completely.
Working (G0/S0) Individual devices such as the CPU and hard disk may be power 
managed in this state.
S1 Sleeping State CPU Stop Clock
VGA Standby, turn off back-light
PCMCIA Standby
Hard Disk Spin Down motor
CD-ROM Spin Down
Super I/O Power down
S3 Sleeping State CPU set power down
VGA Suspend
PCMCIA Suspend
Audio Suspend
Hard Disk Power Down
CD-ROM Power Down
Super I/O Power Down
S4 Sleeping State System Saves all system states and data onto disk prior to power 
off the whole system.
Environmental Requirements
ItemSpecification
Temperature
Operating
+5~+35 
°C
Non-operating
-20~+65 
°C
Non-operating
-20~+65
 °C  (storage package)
Humidity
Operating 20% to 80% RH, non-condensing
Non-operating 20% to 90% RH, non-condensing (unpacked)
Non-operating 20% to 90% RH, non-condensing (storage package)
Vibration
Operating (unpacked) 5~500Hz: 1.0G
Non-operating (unpacked) 50~500Hz: 2.16G
Mechanical Specification
ItemSpecification
Dimensions 329mm (W) x 279mm (D) x 42.3/52.8mm(H)  for 14.1 LCD model
335mm(W) x 295mm (D) x 42.3/52.8mm (H) for 15.0 inch model
Weight 7.7lbs for 14.1 inch model;8.1lbs for 15.0 inch model 
I/O Ports 1 parallel port (25 pins) EPP/ECP capability, 1 CRT port (15 pins) supports DDC 
2B, 1 TV-out connector, 1 microphone-in port, 1 headphone-out with SPDIF 
port, 1 AC adapter jack (2 pins), 1 type III or type II PCMCIA card bus slots, 3 
USB ports (4 pins), 1 RJ-11/RJ-45 port
Drive Bays One
Material Housing:  Byer FR2000
Panel    :  Plastic
Indicators Easy-to-read lock indicators, Status indicators, Power LED, Audio DJ mode 
indicators