Hitachi DV-P543U, Service Manual

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2-5
2-4 LIST OF ABBREVIATIONS AND TERMS FOR DVD PLAYER
Index Abbreviation/Term Explanation
A AC3 See Dolby AC3.
C CD-R One type of DVD standard disc, to which writing once is possible (recordable type)
CD-RW One type of CD standard disc, to which writing up to 1000 times is possible
Component video
output terminals Used for outputs of HDTV video signal format. Since signals for brightness and colors are
independently handled for components signals (Y: luminance signal; PR/PB: chrominance
signals), degrading of image will be reduced.
D Dolby AC3 Audio coding format developed by Dolby Laboratories in U.S, also simply referred to as AC3
format: Supports 5-channel full-range sound and one channel for sub-woofer sound
playback.
D terminal This terminal, specified by EIAJ (currently JEITA), can automatically switch "digital hi-vision"
programs of BS digital broadcast, and "digital standard broadcast" of current image quality. A
tuner and TV can easily be connected to the D terminal. There are 5 types of D terminal,
depending on the different format of video signal passing thorough the D terminal.
DTS Digital Theater System: Sound system as for movie theaters developed by US Digital Theater
Systems, Inc. The number of channels provided by DTS is the same for Dolby AC3.
DVD Digital Versatile Disc. A huge amount of digital data for video (movie) and audio can be
recorded on this disc, whose size is the same as CD.
DVD-Audio One type of DVD standard disc, on which high-quality audio can be recorded
DVD-R One type of DVD standard disc, to which writing once is possible (recordable type)
DVD-RAM One type of DVD standard disc, to which writing up to 100,000 times is possible
DVD-ROM One type of DVD standard disc, to which data for computer can be recorded
DVD-RW One type of DVD standard disc, to which writing up to 1000 times is possible
DVD-Video One type of DVD standard disc, on which high-quality video and audio can be recorded
DVD Video Format Video recording/playback standard that applies to DVD-Video, DVD-R and DVD-RW
DVD Video Recording
Format Video recording/playback standard that applies to DVD-RAM and DVD-RW: This allows
versatile editing functions, differing from the DVD Video Format.
DVD Forum International organization that formulates the technical standards of DVD
E EIAJ Electronic Industries Association of Japan: An organization of manufacturers of consumer
electronic devices, industrial electronic devices and electronic components, established in
April 1948. EIAJ merged with JEIDA (Japan Electronic Industry Development Association) in
November 2000 to become JEITA (Japan Electronics and Information Technology Industries
Association).
J JPEG Joint Photographic Expert Group: International standard format for compressing still images.
L Linear PCM Linear Pulse Code Modulation: LPCM is a format that digitizes analog audio signal during
recording and converts it back to analog signal during playback.
M MPEG Moving Picture Experts Group: Standard related to compression of digital video and audio.
MPEG2 is a higher standard of MPEG and is applied to video (movie) requiring higher
quality.
MPEG Audio Layer 2 One of three audio compression standards (layers 1-3) defined by MPEG
MP3 MPEG1 Audio Layer-3: Audio data digital compression technology.
P Progressive playback
function This function converts interlaced images to non-interlaced images and displays them. It can
play back 24-frame/second images included in DVD movie software, etc.
S SDMI Secure Digital Music Initiative: This conference was established by hardware makers, the
Recording Industry Association of America (RIAA) and music industry companies, to protect
copyrights of musical compositions.
V Virtual surround This technology localizes sound at any position using only two front speakers, by subjecting
the L and R signals to matrix operation. It uses the four transfer functions from L/R speakers
located at specified positions to both ears of listener located in a specified position, taking
into account the shape of head and the effect of earlobes, and the two transfer functions from
any position to both ears.