The ED-845 DVD & CD Player Trainer is an educational instrument designed for the theoretical/practical study of the workings of a DVD & CD player, as well as the operation of DVD-format digital video and audio signals, and digital audio in CD format. The functional structure of the equipment enables its internal composition to be observed, the various signals involved in its operation analysed by means of a block diagram and faults introduced, all in order to aid the student learn diagnostic methods and how to locate breakdowns.

The trainer includes a DVD & CD player using the latest digital signal processing technology, and offering the best features found on the market today.

The fault simulator enables to introduce many malfunctions in the DVD & CD player, allowing to simulate many real failures.

The instrument is backed up by extensive documentation (which includes a Teacher's Manual, a “Upcoming Digital Technologies Manual” and Technical Documentation Manual), a Test DVD disc, an infra-red remote control (batteries included) and an SCART cable. The practices manual also includes the basic theory and the description of the circuits that make up the equipment.

DVD AND CD PLAYER

• PAL/NTSC signal format (without transcoding)
• Region 2
• Compatible discs: DVD-VIDEO, DVD-RW/-R, DVD+RW/+RW, VIDEO-CD, CD-AUDIO
• Playback: DivX (MPEG-4 ASP) and MP3
• Outputs: Digital Out Coaxial, Line Out Audio, Line Out Vídeo, SCART

BLOCK DIAGRAM

The printed block diagram allows a comfortable position for the student to access the test points without losing sight of the mechanics and electronics of the DVD player. The block diagram is made up of the following functional modules, each with the test points for the most important signals involved in operation:

• Pickup
• RF DVD/CD amplifier
• DSP Servo/Data processing
• Motor Driver
• Video processing
• Audio processing
• System control
• Power supply

INCLUDED DOCUMENTATION (IN CD-ROM)

• Training system user manual
• DVD&CD player user manual
• Practice manual
• Teacher's manual
• Upcoming digital technologies manual
• Technical documentation manual

INCLUDED ACCESSORIES

• Remote control
• Batteries (2xR6 AA)
• Shielded SCART cable
• DVD test disc