Acer Travelmate 420 Service Guide
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Chapter 123 Hardware Specifications and Configurations Processor ItemSpecification CPU type Intel Pentium 4 CPU package / PGA478 package CPU core voltage Depend on CPU VID CPU I/O voltage 1.2V BIOS ItemSpecification BIOS vendor Phoenix BIOS Version PhoenixBIOS 4.0 Release 6.0 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, DMI 2.0, PS/2 keyboard and mouse, USB, VGA BIOS, CD-ROM bootable, BIOS password control Set by setup manual Second Level Cache ItemSpecification Cache controller Built-in CPU Cache size 512KB 1st level cache control Always enabled 2nd level cache control Always enabled Cache scheme control Fixed in write-through System Memory ItemSpecification Memory controller Memory size 256/512MB DIMM socket number 1 sockets (2 banks) Supports memory size per socket 512MB Supports maximum memory size 1G (by two 512MB SO-DIMM module) Supports DIMM type DDR Synchronous DRAM Supports DIMM Speed 133 MHz Supports DIMM voltage 2.5V/1.25V Supports DIMM package 200-pin soDIMM Memory module combinations You can install memory modules in any combinations as long as they match the above specifications. µ SG_TM420_Ch1.fm Page 23 Thursday, September 26, 2002 9:23 AM
24Chapter 1 NOTE: Above table lists some system memory configur ations. You may combine DIMMs with various capacities to form other combinations. . Memory Combinations Slot 1Slot 2Total Memory 256/512MB 0 MB 256MB/512MB 256/512MB 128MB 384MB/640MB 256/512MB 256MB 512MB/768MB 256/512MB 512MB 768MB/1024MB LAN Interface ItemSpecification Supports LAN protocol 10/100 Mbps LAN connector type RJ45 LAN connector location Right side Modem Interface ItemSpecification Data modem data baud rate (bps) 56K Supports modem protocol V.90 MDC or Billionton Modem connector type RJ11 Modem connector location Right side Hard Disk Drive Interface ItemSpecification Vendor & Model Name IBM 20G IBM 30G IBM 40G Toshiba 40G (MK4018)Hitachi 20G DK23DA- 20FHitachi 30G DK23DA- 30FHitachi 40G DK23DA- 40F Capacity (MB) 20000 30000 40000 40000 20000 30000 40000 Bytes per sector 512 512 512 512 512 512 512 Data heads 2 3 4 4234 Drive Format Disks1222122 Spindle speed (RPM) 4200 RPM 4200 RPM 4200 RPM 4200 RPM 4200 RPM 4200 RPM 4200 RPM Performance Specifications Buffer size 2048KB 2048KB 2048KB 2048 512KB 2048KB 2048KB Interface ATA-5 ATA-5 ATA-5 ATA-5 ATA-5 ATA-5 ATA-5 Max. media transfer rate (disk-buffer, Mbytes/s) 130~245 125~241 130~245 156.9~ 290.4149.6~ 277.6149.6~ 277.6149.6~ 277.6 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-5 100 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 tolerance 5V(DC) +/- 5%5V(DC) +/- 5%5V(DC) +/- 5% 5V(DC) +/- 5%5V(DC) +/- 5%5V(DC) +/- 5%5V(DC) +/- 5% SG_TM420_Ch1.fm Page 24 Thursday, September 26, 2002 9:23 AM
Chapter 125
DVD-ROM Interface
ItemSpecification
Vendor & model name Toshiba (SR-C2612)
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) (Mode1) 4X-5.7X PCAV 600-855KByte/s
10.3X-24X CAV 1552-3600KByte/s
(Mode2)
4X-5.7X PACV 684.4-975.3KBytes/s
10.3X-24X CAV 1769-4104KByte/s 3.3X-8X CAV 4463-10820KByte/s
Data Buffer Capacity 192 KBytes
Interface IDE/ATAPI
Applicable disc format DVD: DV D-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read, single
border), DVD-RW(read) DVD-RAM (read, Version2.1), DVD-RAM (read,
Version 1.0)
CD: CD-Audio, 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)
Vendor & model name LiteOn (LSD-081)
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained: Max 3.6Mbytes/sec Sustained:
Max 10.8Mbytes/sec
Data Buffer Capacity 256 KBytes
Interface IDE/ATAPI
Applicable disc format DVD: DV D-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read, single
border)
CD: CD-DA, CD ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and Form-2, CD-I
Ready, Video-CD (MPEG-1), Karaoke CD, Photo-CD, Enhanced CD, CD extra,
I-Trax CD, UDF, and CD-TEXT
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)
Vendor & model name Hitachi (GDR-8081N)
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained: Max 3.6Mbytes/sec Sustained:
Max 10.8Mbytes/sec
Data Buffer Capacity 512 KBytes
Interface IDE/ATAPI
Applicable disc format DV D: DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),
CD: CD-ROM Mode-1 data disc, CD- ROM Mode-2 data disc, CD-ROM XA,
CD-I, Multisession CD (Photo-CD), CD-Au dio disc, Mixed mode CD-ROM disc
(data and audio) CD-Extra, CD-Text, CD-R (read), CD-RW (read)
SG_TM420_Ch1.fm Page 25 Thursday, September 26, 2002 9:23 AM
26Chapter 1
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
Vendor & model name Toshiba (SD2212)
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) (Mode1) PCAV 600-900KByte/s
CAV 1552-3600KByte/s
(Mode2)
PACV 684.4-1026KBytes/s
CAV 1769-4104KByte/s CAV 2230-5480 Block/s
Data Buffer Capacity 2Mbytes
Interface IDE/ATAPI
Applicable disc format DV D: DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read, Ver 1.0, Ver.
2.0 single border), DVD-RW (read, Ver 1.1), DVD-RAM (read Ver.2.1, Ver. 1.0)
CD: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED
MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD) Multisession CD (Photo-
CD, CD-EXTRA, CD-R, CD-RW), Portfolio (read), 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)
Vendor & model name QSI (SBW161)
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/sec) Sustained: Max 3.6Mbytes/sec Sustained:
Max 10.8Mbytes/sec
Data Buffer Capacity 2MBytes
Interface IDE/ATAPI
Applicable disc format DVD: DV D-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read), DVD-RW
(read), DVD+RW (Single Border, without Defect Management.)
CD-read: CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and Mode-2
Form-2, CD-i Ready, Video CD (MPEG-1), Karaoke CD, Photo-CD, Enhanced
CD, CD Plus, CD Extra, i-trax CD, CD-Text, CD-R, and CD-RW
CD-write: CD-DA, CD-ROM Mode-1, CD-ROM/XA Mode-2 Form-1 and Mode-2
Form-2, CD-i, Video-CD, CD-Text
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)
Vendor & model name KME (UJDA730)
Performance Specification With CD Diskette With DVD Diskette
DVD-ROM Interface
ItemSpecification
SG_TM420_Ch1.fm Page 26 Thursday, September 26, 2002 9:23 AM
Chapter 127
Transfer rate (KB/sec) Sustained:
Max 3.6Mbytes/sec Sustained:
Max 10.8Mbytes/sec
Data Buffer Capacity 2MBytes
Interface IDE/ATAPI
Applicable disc format DV D: DVD-Video, DVD-ROM, DVD-R (3.9GB, 4.7GB)
CD: CD-DA, CD-ROM, CD-RW, CD-R, CD-ROM XA, (except ADPCM) CD-I
Ready, PhotoCD (muiltiSession) Video CD, Cd-Extra (CD+), CD-text
Loading mechanism Load: Manual Release: (a) Electrical Release (Release Button)
(b) Release by ATAPI command
(c) Emergency Release
Power Requirement
Input Voltage +5 V +/- 0.25V
Audio Interface
ItemSpecification
Audio Controller Realtek ALC202 AC97 Codec
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 2.2 & WHQL
Mixed sound source Line-in, CD
Sampling rate 48 KHz
Internal microphone Yes
Internal speaker / Quantity Yes/2
Supports PnP DMA channel DMA channel 00
Supports PnP IRQ IRQ3, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11
Video Interface
ItemSpecification
Chip vendor ATI
Chip name ATI M7-C
Chip voltage Core/1.25V
Supports ZV (Zoomed Video) port No
Video Resolutions Mode (for both LCD and CRT)
Resolution16 bits
(High color)32 bits
(True color)
1024x768 Yes Yes
1400x1050 (SXGA) Yes Yes
1600x1200 (UXGA) Yes Yes
1280x1024 (Monitor) Yes Yes
Parallel Port
ItemSpecification
Parallel port controller SMSC LPC47N227
Number of parallel port 1
Location Rear side
DVD-ROM Interface
ItemSpecification
SG_TM420_Ch1.fm Page 27 Thursday, September 26, 2002 9:23 AM
28Chapter 1 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 re sources for other devices. 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 Optional parallel port I/O address (in BIOS Setup) 378h, 278h 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 2 Location Right side Serial port function control E nable/Disable by BIOS Setup PCMCIA Port ItemSpecification PCMCIA controller OZ6912 CardBus controller Supports card type Type II Number of slots One type-II Access location Right panel Supports ZV (Zoomed Video) port No ZV support Supports 32 bit CardBus Yes (IRQ11) System Board Major Chips Item Controller System core logic Brookdale MP+ICH3-M Super I/O controller SMsC 47N227, LPC interface Audio controller Realtek ALC202 Codec Video controller ATI M7-C Hard disk drive controller ICH3-M Keyboard controller NS 87591 RTC ICH3-M Keyboard ItemSpecification Keyboard controller NS 87591 Keyboard vendor & model name Acer proprietary keyboard w/o launch button embeded Total number of keypads 87/88/90 keys with 101/102 key emulation Parallel Port ItemSpecification SG_TM420_Ch1.fm Page 28 Thursday, September 26, 2002 9:23 AM
Chapter 129 There are two control signals that come form system to control lamp brightness. One signal is named DAC_BRIG, which limits curr ent to meet LCD lamp current specification. Another one is named PWM, which adjusts lamp br ightness. 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 to 21V input voltage. 2. Birghtness adjustment by PWM duty mode. 3. Close loop cont rols lamp current. Windows logo key Yes Internal & external keyboard work simultaneously Yes Battery ItemSpecification Vendor & model name Sanyo/Sony/Panasonic Battery Type Li-ion Pack capacity 69.93Wh Cell voltage 3.7V/cell Number of battery cell 9 Package configuration Pin 1,2: BA TT+: Battery positive power pin Pin 3: Floating pin (3S3P) Pin 4: B/I: Enable LI-ion battery out put, connect to 1k resistor to GND in system. Pin 5: TS: connect 10K ohm Thermistor to GND Pin 6: EC_SMD1: SMbus DATA Pin 7: EC_SMC1: SMbus CLOCK Pin 8, 9: GND: battery ground power pin Package voltage 11.1V LCD Inverter Specification This inverter is designed to light up the CCFL of LC D for TravelMate 420 series notebook. It should be supported the following LCD panels. No.SupplierModelTy p e 1 AU UB141X01 TFT, 14.1” XGA 2 CPT CLAA141XF01 TFT, 14.1” XGA 3 AU B150PG01 TFT, 15.0 SXGA+ 4 Hitachi TX38D91VC1FAC TFT, 15.0” SXGA+ 5 AU B150XG01 TFT, 15.0” XGA 6 IBM ITSX95C TFT 15.0” SXGA+ 7 Hannstar HDS150PX14-A TFT 15.0” XGA Keyboard ItemSpecification Ω Ω SG_TM420_Ch1.fm Page 29 Thursday, September 26, 2002 9:23 AM
30Chapter 1 Electrical Characteristics No .ParameterSymbolMin.Ty p .Max.UnitComment 1 Input voltage NV_PWR 9 14.8 21 V 7.5V (continuous) can work *Note 1 2 Input current Iin -- 0.33 -- A 3 Lamp current IL 3.0 -- 6.8 mA DAC=0V *Note 2 4 Lamp current IL 2.7 -- 6.3 mA DAC=1V 4 Frequency F45 5565 KHz * Note 3 5 Output power Pout -- -- 4.5 W 6 Efficiency η80% -- -- -- 7 Starting voltage Vs 1600 -- --- V At 0’C 8 Starting time Tvs 1 -- 1.5 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 current DAC- BRIG 0 3.3 V *Note 2 11 P W M signal *Note 4 INV_PW M 142 150 158 Hz PWM signal frequency 3.0 3.3 3.6 V PWM signal amplitude 30 -- 100 % 12 Lamp current over-shoot I zero-PK -- -- 10 % Line transient (10.8V to 21V/100us) and turn on transient 13 Current Waveform factor 1.27 1.56 Multiple or *10 14 Unbalance Rate -10% 0 +10% Mulitple 15 Turn off current (Hight side) IHl----0APWM=30% 15 Turn off voltage (Low side) Voff -- -- 150Vp- pV PWM=30% Duty Ton Period ------------------ - = rms pI I 2 rms pI I − rms p pI I I −− SG_TM420_Ch1.fm Page 30 Thursday, September 26, 2002 9:23 AM
Chapter 131
NOTE:
*1. The inverter can work in 7.5V input voltage (continuous), but 7.5V electronic characteristic will
not be care.
*2. 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.
When add 1V DAC, the 100% Lamp current will decrease 0.5mA.
DAC_BRIG signal comes from system chipset with internal resistance of 3K
*3. Inverter operating frequency should be within specification (45~65kHz) at max. and min.
brightness load.
*4. INV_PWM enable implies INV_PWM signal is High level (On duty cycle is 100%). It is a square
wave of 150Hz to adjust backlight brightness th at 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 30%.
*5.The system interface signals belong to 3.3V.
*6. Please make sure open lamp output voltage sh ould be within starting voltage specification.
*7. Inverter should pass human body safety test.
*8. Inverter should be no smoking by any component open/short test.
*9. Transformer voltage stress should not be over 85% under any condition.
(turn on overshoot transient and line transient.)
*10. Audio noise should be less than 36dB at 10cm distance.
.
Thermal
16 Voltage Rise time
(Low side) Trise -- -- 300us us PWM=30%
17 Voltage fall time (Low
side) Tfall -- -- 300us us PWM=30%
Electrical specification
No
.SymbolMin.Ty p .Max.UnitComment
1 V oper* -- 650 -- Vrms Lamp operating voltage (650+/-50)
Il 6.2 6.5 6.8 mArms DAC_BRIG: 0 V, PWM:
100%
Il 3.0 3.3 3.6 mArms DAC_BRIG: 0 V,
PWM:30%
Il 5.7 6.0 6.3 mArms DAC_BRIG: 0V, PWM:100%
Il 2.7 3.0 3.3 mArms DAC_BRIG: 1V, PWM:30%
F 455565kHz
η 80% -- -- --
No
.ParameterSymbolMin.Ty p .Max.UnitComment
Ω
SG_TM420_Ch1.fm Page 31 Thursday, September 26, 2002 9:23 AM
32Chapter 1 All components on inverter board should follow below rules: 1. Component using conditions (component stress) must be within compone nt specification including voltage rating, current rati ng, temperature etc. 2. Component temperature should follow below: T∆ T