Acer TravelMate 420 Service Manual

Also see for TravelMate 420: Guía del usuario Manuel d'utilisation Guia do utilizador

Contents

Chapter 1 33Output Ratings (CV mode)DC output voltage Offers constant voltage 19.0V output source with 90W max output powercapacity.Noise + Ripple 300mvp-pmax (20MHz bandwidth) for resistor loadOutput current 0 A (min.) 4.74A (max.)Output Ratings (CC mode)DC output voltage 19.0Constant output 3.5ADynamic Output CharacteristicsStart-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 VShort circuit protection Output can be shorted without damage, and auto recoveryElectrostatic discharge (ESD) 15kV (at air discharge)8kV (at contact discharge)Dielectric Withstand VoltagePrimary to secondary 4242 Vdc for 1 secondLeakage current 60uA at 254VacRegulatory Requirements 1. FCC class B requirements (USA)2. VDE class B requirements (German)3. VCCI classII requirements (Japan)Power ManagementACPI Mode Power ManagementMech. 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 offcompletely.Working (G0/S0) Individual devices such as the CPU and hard disk may be powermanaged in this state.Sleeping State (S3) CPU in Stop Clock stateVGA SuspendPCMCIA SuspendAudio Power DownHard Disk Power DownSuper I/O Low Power modeSleeping State (S4) Also called Hibernate state. System saves all system states anddata onto the disk prior to power off the whole system.Environmental RequirementsItem SpecificationTemperatureOperating +5~+35 ° CNon-operating -20~+65 °CNon-operating -20~+50 °C (storage package)HumidityOperating 10% to 90% RH, non-condensingNon-operating 10% to 90% RH, non-condensing (unpacked)AC AdapterItem Specification