Acer Travelmate 430 Service Guide
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Chapter 123 Hardware Specifications and Configurations Processor ItemSpecification CPU type Intel desktop Pentium 4 processor at 2.26GHz~3.06GHz or higher CPU package mPGA478 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...
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24Chapter 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 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...
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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/s3.3X-8X CAV 4463-10820KByte/s Data Buffer Capacity 192 KBytes Interface IDE/ATAPI Applicable disc format DVD: DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),DVD-R (read, single border), DVD-RW(read) DVD-RAM...
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26Chapter 1 1400x1050 (SXGA) Yes Yes 1600x1200 (UXGA) Yes Yes 1280x1024 (Monitor) Yes Yes Parallel Port ItemSpecification Parallel port controller SMSC LPC47N227 Number of parallel port one 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....
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Chapter 127 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 Keyboard controller NS 87591L RTC ICH3-M Keyboard ItemSpecification Keyboard controller NS 87591L Keyboard vendor & model name Acer proprietary keyboard w/o launch button embeded Total number of keypads 87/88/90...
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28Chapter 1 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 controls lamp current.
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Chapter 129 Electrical Characteristics No .ParameterSymbolMin.Ty p .Max.UnitComment 1 Input voltageNV_PWR 9 14.8 21 V 7.5V (continuous) can work *Note 1 2 Input currentIin -- 0.33 -- A 3 Lamp currentIL 3.0 -- 6.8 mA DAC=0V *Note 2 4 Lamp currentIL 2.7 -- 6.3 mA DAC=1V 4 FrequencyF45 5565 KHz* Note 3 5 Output powerPout -- -- 4.5 W 6 Efficiencyη80% -- -- -- 7 Starting voltageVs 1600 -- --- V At 0’C 8 Starting timeTvs 1 -- 1.5 Sec 9 Dispoff# 2.8 3.3 3.6 V Backlight on/off signal 0 0.5 0.8 V Low...
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30Chapter 1
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....
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Chapter 131 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 should follow below: T∆T
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32Chapter 1 Output Ratings (CV mode) DC output voltage Offers constant voltage 19.0V output source with 90W max output power capacity. Noise + Ripple 300mvp-pmax (20MHz bandwidth) for resistor load Output current 0 A (min.) 4.74A (max.) Output Ratings (CC mode) DC output voltage 19.0 Constant output 3.5A Dynamic Output Characteristics Start-up time 3 sec. (@115 Vac and 230Vac full load) Hold up time 10ms min. (@115 Vac input, full load) Over Voltage Protection (OVP) 26 V Short circuit...