Acer Aspire 1620 Service Guide
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22Aspire 1620 Access time (typ.) QSI- Random: 90 ms Full Stroke: 180 ms Mitsumi- Random: 100 ms Full Stroke: 240 ms Rotation speed 5100 rpm for QSI 5400 rpm for Mitsumi 24X CAV mode Data Buffer Capacity 128 KB (built-in) Interface Compliant to ATA/ATAPI-6 Applicable disc format QSI: 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 Mitsumi: CD-DA, CD-ROM (Mode 1 and...
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Chapter 123 Average Full Access time (typ.) Random CAV mode 110 msec typical 150 msec average max Full Stroke CAV mode 200 msec typical 260 msec average maxDVD-5: Random 120 msec typical 160 msec average max Full Stroke 270 msec typical 350 msec average max DVD-9: Random 150 msec typical 200 msec average max Full Stroke 340 msec typical 450 msec average max DVD-RAM (2.6G) Random 200 msec typical 300 msec average max Full Stroke 300 msec typical 600 msec average max DVD-RAM...
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24Aspire 1620
Transfer rate (KB/sec) Read Sustained:
DVD-ROM MAX 8X CAV (MAX 10800 KB/sec)
CD-ROM MAX 24X CAV (MAX 3600 KB/sec)
Write:
CD-R 4X, 8X (CLV), Max 16X, MAX 24X (ZCLV)
CD-RW 4X (CLV)
HS-RW 4X,8X, 10X (CLV)
ATAPI Interface:
PIO mode 16.6 MB/sec :PIO Mode 4
DMA mode 16.6 MB/sec:Multi word mode 2
Ultra DMA mode 33.3MB/sec: Ultra DMA mode 2
Buffer rate 2MB
Access time DVD-ROM 180 ms...
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Chapter 125 Disc Diameter 12cm and 8cm Capacity 2048 bytes/sector (DVD) 2048 bytes/block (CD Mode-1 and Mode-2 Form-1) 2336 bytes/block (Mode-2) 2328 bytes/block (Mode-2 Form-2) Operation environment for “write/rewrite” application Host Machine IBM compatible PC (Pentium 166 MHz or above) OS MS-Windows 90/ME/2000/XP/NT 4.0 Memory Min. 128MB required Hard Disk Empty Storage Capacity:100 MB or more Average access time: 20ms or less Disc Diameter 12cm and 8cm Recommended MediaCD-R: AMT, CMC, Csita, Delphi,...
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26Aspire 1620 Loading mechanism Manual load/DC brushless mortor system Audio Interface ItemSpecification Audio Controller RTL ALC655 Audio onboard or optional Built-in Mono or Stereo Stereo Resolution 20 bit stereo Digital to Analog converter 18 bit stereo Analog to Digital 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 Yes Internal speaker / Quantity Yes/2 Supports PnP...
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Chapter 127 Video Memory ItemSpecification Fixed or upgradeable Fixed (on daughter board) Video memory size 64B(128MB optional) LCD Display Resolution Resolution8 bit (256colors)16 bits (Hi color)24 bits (True color)32 bits (True color) 640x480 Yes Yes Yes Yes 720x480 Yes Yes Yes Yes 800x600 Yes Yes Yes Yes 848x480 Yes Yes Yes Yes 1024x768 Yes Yes Yes Yes CRT Display Resolutions Resolution8 bit (256colors)16 bits (Hi color)24 bits (True color)32 bits (True color) 640x480 Yes Yes Yes Yes 720x480 Yes...
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28Aspire 1620 OHCI USB 2.0 Number of USB port 4 5V/500 mA per slot Location Rear side Other Remarks 3 independent OHCI USB1.1 Host Controller and 1 EHCI USN2.0 Host Controller. PCMCIA Port ItemSpecification PCMCIA controller TZ 1520 Supports card type Type II, Tpye III Number of slots Two type II, one type III Access location Left side Supports ZV (Zoomed Video) port Yes Supports 32 bit CardBus Yes (IRQ17) Keyboard ItemSpecification Keyboard controller Mitsubishi LPC keyboard controller M38857...
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Chapter 129 Pixel Arrangement R.G.B. Vertical Stripe R.G.B. Vertical Stripe R.G.B. Vertical Stripe Display Mode Normally White Normally White Transmissive mode, Normally White Typical White Luminance (cd/m 2) also called Brightness180 (5 point average) 150 (5 point average)170 150 (5 point average) Luminance Uniformity N/A N/A N/A Contrast Ratio 300/250 250 250 Response Time (Optical Rise Time/Fall Time)24/11 15/356/17 10/20 Nominal Input Voltage VDD +3.3V Typ. +3.3V Typ. +3.3V Typ. Typical Power...
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30Aspire 1620 NOTE: Aspire 1620 series does not have 14.1” TFT LCD model, please ignore 14.1” TFT LCD information on Viewing Angle (degree) Horizontal: Right/Left Vertial: Upper/Lower40/40 20/4045/45 15/3545/45 20/40 Temperature Range( C) Operating Storage (shipping)0 to +40 -20 to +600 to +50 -25 to +600 to +50 -25 to +60 LCD Item Vendor & model name Hannstar HSD150PX14 HSD150PK14AU B141XN04CMO N141XB- L01(SPWG-B type) Hydis HT14X19-100 (SPWG-B type) Screen Diagonal (mm) 15.0 inches 14.1 inches 14.1...
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Chapter 131 the table. AC Adapter ItemSpecification Vendor & model name Liton, 135W power supply Input Voltage Low Range 90(min.)/137(max.)/100-127(nominal) High Range 180(min.)/265(max.)200-240(nominal) Input current 2.2A(max) Nominal frequency (Hz) 50-60 Frequency variation range (Hz) 47-63 Efficiency It should provide an efficiency of 85% minimum, when measured at maximum load under 115Vac. Output Requirements DC output voltage 19V Noise + Ripple 380mV as output voltage is 19V Peak Load...