Technical Specifications - Philips VAD8041 Service Manual

EN 2 1. VAD8041
1. Technical Specifications and Connection Facilities
1.1 VAD8041 functionality:
• Loading of 8 cm and 12 cm discs by a motorized tray
• Disc type recognition and in case of a DVD+RW disc laser
power calibration
• Servo control for disc rotation, sledge movements, tilt,
focus and actuator position
• EFM+ encoding / decoding for DVD, and EFM decoding for
CD
• Writes and read DVD+RW discs and reads DVD, CD and
CD-R/RW discs
• Linking control, header insertion and sector number
updating at record
• Interfacing to the MPEG back-end for control and for data
• The back-end has to provide MPEG data processing, data
buffering, construction of logical format for Lead-in, Data
area and Lead-out part of the DVD+RW disc
1.2 Connections
The following interfaces are provided for connecting the drive
to the MPEG back-end Application:
• Power Connector: 4-pin supply interface
• IDE Connector: 40-pin command and data transfer
interface
IDE Bus selection:
• Jumper Selection: 6-pin IDE Bus selector
1.3 Read and Write Speeds
Type of Disc (Function) Disc Rotation Speed
Read Speed CD
Read Speed DVD
Write Speed DVD+RW
Write Speed DVD+R
Technical Specifications and Connection Facilities
CAV 7x
CAV 4x
ZCAV 2.4x
ZCAV 2.4x