Acer TravelMate 250 TravelMate 240/250 Service Guide - Page 32

DVD-ROM Interface Item Transfer rate (KB/sec) Average Full Access time (typ.) Data Buffer Capacity Interface Applicable disc format Loading mechanism Power Requirement Input Voltage Specification Average Sustained: CAV mode 775~1800 blocks/sec (10.3X to 24X) 1550~3600kBytes/sec (Mode 1) 1768~4106 kBytes/sec (Mode 2) DVD-5: Normal Speed (1X) 11.08 Mbits/sec CAV mode 36.67~88.64 Mbits/sec DVD-9/DVD-R: Normal Speed (1X) 11.08 Mbits/sec CAV mode 36.67~88.64 Mbits/sec Random (*1) CAV mode 110 msec typical 150 msec average max Full Stroke (*2) CAV mode 200 msec typical 260 msec average max DVD-5: Random (*4) 120 msec typical 160 msec average max Full Stroke (*5) 270 msec typical 350 msec average max DVD-9: Random (*7) 150 msec typical 200 msec average max Full Stroke (*8) 340 msec typical 450 msec average max DVD-RAM (2.6G) Random (*7) 200 msec typical 300 msec average max Full Stroke (*8) 300 msec typical 600 msec average max DVD-RAM (4.7G) Random (*9) 180 msec typical 300 msec average max Full Stroke (*10) 320 msec typical 700 msec average max 512 kBytes IDE DVD: DVD-5, DVD-9, DVD-10, DVD-R (3.95G), DVD-RAM (2.6G), DVDRAM (4.7G) CD: CD-Audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 1 and form 2), CD-I (mode 2, form 1 and form 2), CD-I Ready, CD-I Bridge, CD-WO, CD-RW, Photo CD, Video CD, Enhanced Music CD, CD-TEXT Soft eject (with emergency eject hole) +5V[DC]+/-5% (*1) Average of Data read over the whole area from 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block more than 2000 times including latency and layered error correction time. (*2) From 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block including latency and layered error correction time. (*3) Disc: MNSU-005 (*4) Average of Data read over the whole area from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F), more than 2000 times including latency and layered error correction time. (*5) from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F) including latency and layered error correction time. Chapter 1 23