Acer Aspire 8940 Service Guide
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Chapter 121 Hard Disk Drive Interface) ItemSpecification Vendor Seagate Model Name ST9160314AS ST9250315AS ST9320325AS Capacity (MB) 160 250 320 Bytes per sector 512 Data heads 2 2 3 Drive Format Disks 1 1 2 Spindle speed (RPM) 5,400 Performance Specifications Buffer size 8MB Interface SATA Internal transfer rate (Mbits/sec max) 830 I/O data transfer rate (Mbytes/sec max) 300 DC Power Requirements Voltage tolerance 5V(DC) +/- 5%
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22Chapter 1 Hard Disk Drive Interface (cont) ItemSpecifications Vendor & Model NameWD WD5000BEVTWD WD1600BEVTWD WD2500BEVTWD WD3200BEVT Capacity (MB) 500 160 250 320 Bytes per sector Data heads 2 3 4 Drive Format Disks 1 2 2 Spindle speed (RPM)5400 Performance Specifications Buffer size 8MB Interface SATA Internal transfer rate (Mbits/sec, max)3GB/s maximum I/O data transfer rate (Mbytes/sec max)850 Mbits/s maximum DC Power Requirements Voltage +5.0V ± 5%.
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Chapter 123 Hard Disk Drive Interface (cont) ItemSpecifications Vendor & Model NameHTS543216L9A300 HTS545025B9A30 0HTS545032B9A30 0HTS545050B9A30 0 Capacity (MB)160 250 320 500 Bytes per sector512 Data heads 2 3 4 4 Drive Format Disks 1 2 2 2 Spindle speed (RPM)5400 Performance Specifications Buffer size 8MB Interface SATA Internal transfer rate (Mbits/sec, max)3GB/s maximum I/O data transfer rate (Mbytes/sec max)875 Mbits/s maximum DC Power Requirements Voltage +5.0V ± 5%.
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24Chapter 1 Hard Disk Drive Interface (cont) ItemSpecifications Vendor & Model NameToshiba MK1655GSX Toshiba MK2555GSX Toshiba MK3255GSX Toshiba MK5055GSX Capacity 160GB 250GB 320GB 500GB Bytes per sector512 Data heads 4/2 4 4/2 4/2 Drive Format Disks 2/1 2 2/1 2/1 Spindle speed (RPM)5400 Performance Specifications Buffer size 8MB Interface SATA Internal transfer rate (Mbits/sec, max)363 ~ 952 typical I/O data transfer rate (Mbytes/sec max)3Gbits/s DC Power Requirements Voltage +5.0V ± 5%.
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Chapter 125 Super-Multi Drive Module ItemSpecification Vendor & model name HLDS/GSA-T50 Toshiba TS-L633B Performance Specification With CD Diskette With DVD Diskette Transfer rate (MB/sec) Sustained: Max 3.5 Mbytes/secSustained: Max 10 Mbytes/sec Buffer Memory 2MB Interface SATA Applicable disc format Applicable media types: Writing: Confirms to DVD+R Version 1.2 and DVD+RW Version 1.3 / DVD+R DL Version 1.0 /DVD-R Version 2.0 / DVD-RW Version 1.2 / DVD-R DL Version 3.0. Reading: DVD single/dual...
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26Chapter 1 Blue-Ray Combo Drive Module Loading mechanism Drawer (Solenoid Open) Tact SW (Open) Emergency Release (draw open hole) Power Requirement Input Voltage DC 5 V +/- 5% ItemSpecification Vendor & model name Sony BC-5500S Performance Specification With CD Diskette With DVD Diskette Transfer rate (MB/sec) Sustained: Max 2.4 Mbytes/secSustained: Max 11 Mbytes/sec Buffer Memory 4.5 MB Interface SATA Applicable disc format Applicable media types: BD-ROM (Single and Dual Layer) BD-R (Single and Dual...
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Chapter 127 Audio Interface ItemSpecification Chipset REALTEK ALC889X for High Definition Audio Codec Package 48-pin LQFP ‘green’ package Features • High performance DACs with 108dB signal-to-noise ratio • High performance ADCs with 104dB signal-to-noise ratio • Meets Microsoft WLP 3.0x and future WLP4.0 Premium requirements • Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels of concurrent independent stereo sound output (multiple streaming) through the front...
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28Chapter 1 Audio Amplifier Subwoofer Speaker Front Speaker Center Speaker ItemSpecification Model Panasonic 12947A Package 48 pins QFP Features • Microsoft Windows 7® Compliant • High +90dB PSRR, Low -80dB THD+N • Class AB 2.2W (max.) Stereo BTL Speaker Amplifier • Built-in direct drive headphone amplifier within charge pump • AGC adjusted circuit function implement • STBY function support on speaker and headphone (countermeasure pop noise) • RF noise prevention • Built-in over current protection •...
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Chapter 129 Digital Camera Power and Keyboard Controller Battery LCD ItemSpecification Sensor CMOS 1 Mega Pixel with WXGA (1280 x 800 pixels) Pixel Size 3.0um X3.0um Image Size 3.89mm(H) X 2.43mm(V) Interface USB 2.0 high-speed Optics • Optical aperture of F/2.0 • Focusing range of 40 cm to Infinity • Dimension (L x W x H mm ): 65 X 9.0X 5.25mm ItemSpecification Controller KB926 Total number of keypads Windows logo key Yes Hotkeys See “System Hotkeys” on page 14. ItemSpecification 6 Cell8 Cell Vendor &...
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30Chapter 1 Card Reader Express CardPhysical Size (mm) 422.5 (H) x 248 (V) x 6 (D) mm Electrical Interface 40-pin LVDS Support Color 262,144 colors Viewing Angle (minimum degree) Horizontal (Right) CR = 10 (Left)45 45 Vertical (Upper) CR = 10 (Lower)25 45 Temperature Range (°C) Operating Storage (shipping)0 ~ 50 -20 ~ 60 ItemSpecification Part Name O2 OZ888GS Package 64 pins QFN Features • Fully Compliant with Provisions of IEEE Std 1394-1995 for a High-Performance Serial Bus and IEEE • Std 1394a-2000...