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Sony MZ-G755 Explanations, The meaning of “no sound”, How the MiniDisc got so small

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ExplanationsHow the MiniDisc got so small

The 2.5-inch MiniDisc, encased in a plastic cartridge that looks like a 3.5- inch diskette (see illustration above), uses a new digital audio compression technology called ATRAC (Adaptive TRansform Acoustic Coding). To store more sound in less space, ATRAC extracts and encodes only those frequency components actually audible to the human ear.

The meaning of “no sound”

“No sound” describes a recorder condition in which the input level is about 4.8 mV during analog input or less than –89 dB during optical (digital) input (with 0 dB as full bit (the maximum recordable level for a MiniDisc)).

Contents

Operating Instructions WARNING Information Page Table of contents Various ways of recording Various ways of playback Various way to use the radio Editing recorded tracks Power sources Additional information Looking at the controls The display window The remote control with built-indigital tuner The display window of the remote control Getting started 1Insert the rechargeable battery 2Charging the rechargeable battery 3Make connections and unlock the control 4Insert an MD (Use a recordable MD for recording.) Using on a dry battery Notes Recording an MD right away 1Make connections (Insert the cables firmly and completely into the appropriate jacks.) 3Record an MD To stop recording, press If the recording does not start For models supplied with the AC plug adaptor About the DSP TYPE-Rfor ATRAC Playing an MD right away 1Play an MD Press (Beeps in the headphones earphones2)) Suppressing the skips of the sound (G-PROTECTION) Note If play does not start Page Listening to the radio 1Turn on the radio To turn off the radio To tune in a station quickly To improve broadcast reception When you cannot operate the radio Various ways of recording Page Recording with analog input (line cable required) L (white) Line cable (not supplied) CD player Long-timerecording (MDLP) REC MODE Recording mode1) Display Recording time3) To start/stop recording in sync with the source player (Synchro-recording) <SELECT SYNC REC Recording without overwriting existing material To start recording from the current point Recording from a microphone Stereo to MIC (PLUG IN POWER) Adding track marks automatically (Auto Time Stamp) Time To cancel Auto Time Stamp Using Auto Time Stamp to add track marks while recording When the elapsed recording time exceeds the time interval for Auto Time Stamp: ManualREC REC Checking the remaining time or the recording position Display window on the recorder On A LapTime RecRemain1) AllRemain2) Various ways of playback Shuf.Rep On A/B Normal AllRepeat 1 Repeat Emphasizing bass (DIGITAL MEGA BASS) BASS Checking the remaining time or the playing position 1 Remain AllRemain Protecting your hearing (AVLS) To cancel AVLS Locking the controls (HOLD) To unlock the controls Connecting to a stereo system VOL+ Various way to use the radio Presetting radio manually Listening to the preset radio stations Jog lever (F+/F–) Jog lever (F+) Region FM (MHz)1) AM (kHz)1) Editing recorded tracks To erase a track To erase the whole disc Page Adding a track mark Add a track mark Track numbers increase T MARK To add track marks while recording Erasing a track mark Erase a track mark Moving recorded tracks Example Move track C from the third to the second track Before moving After moving Labeling recordings Available characters Labeling a disc during stop Labeling a track during playback Labeling a track or a disc during recording To cancel labeling, press Relabeling recordings Power sources When using the radio1) Approx. hours When to replace the battery Additional information On the headphones/earphones Road safety Preventing hearing damage Caring for others On the MiniDisc cartridge On the lid of the battery compartment Slots Projections Note on mechanical noise To protect a recorded MD Note on digital recording Digital recording Home digital Analog recording System limitations Symptom Cause Page Troubleshooting MD Recorder The recorder does not work or works poorly “NO SIGNAL” appears in the display when recording from a portable CD player There is no recording on the MD after a recording operation The lid does not open No sound comes through the headphones/earphones Volume cannot be turned up Page Messages BLANKDISC (– – – – – ) DISC ERR (– – – – – ) DISC FULL (– – – – – ) Data Save (– –) Hi DC in (HI dcin, – – – – – ) HOLD (Hold) LOW BATT (Lo batt) MEM OVER (– – – – – ) NO COPY (– – – – – ) SORRY (– – – – – ) TEMP OVER (– – – – – ) TR FULL (– – – – – ) TrPROTECT (– – – – – ) Specifications MD recorder Audio playing system Laser diode properties Recording and playback time Battery operation time Dimensions Mass Supplied accessories Optional accessories Explanations How the MiniDisc got so small The meaning of “no sound” Quick Random Access