MCI-Autolocator-III-Service-Manual维修手册

SECTION 5AUTOLOCATOR III5.1 General DescriptionOnce a time (or position)is entered into the locateposition display the transport can autolocate toThe AutoLocator lll is a microprocessor basedthat position simply by pressing the LOC button.position locator and velocity indicator.Themicroprocessor executes programs stored in itsAt any time while the transport is in stop,play,ormemory to perform the functions requested by therecord mode the current tape position can bebutton switches on the front panel.Theloaded into a locate position memory.Pressing-AutoLocator lll is available as an optional(shift right),STO (store),and any of the numericaccessory to the JH-24.It mounts directly abovekeys stores the time from the tape positionthe remote unit and interfaces to the tapedisplay into the corresponding locate memory.transport via a thirty foot long cable harness.These positions can later be recalled anddisplayed in the locate position display by press-Operating voltages for the autolocator come froming RCL and the respective numeric key.The LOCthe JH-24 transport.The AutoLocator lll does notbutton will then locate the transport to the posi-contain its own power supply,but does containtion retrieved from memory.voltage regulators which produce +5vdc from thetransport's +8vdc output.The transport's powerThe locate memories can be pre-loaded with anysupply also supplies +15vdc to the autolocator asposition by entering the time into the locate positionrequired by the amplifiers on the AutoLocator lll.display via the numeric keyboard.From the locatedposition display the time is entered into the memoryThe AutoLocator lll contains two four digit LEDwith the STO and numeric key sequence.segment displays;one displays the current tapeposition,the other displays the desired locateThe position memory can be pre-loaded with anyposition.Both displays indicate tape position inposition by first entering the time into the locateminutes and seconds of playback/record time nor-position display via the numeric keyboard.Then,malized to the standard(fixed)speeds.the -(shift left)button is used to shift the locateposition into the tape position display redefiningA numeric keyboard enters digits into the locatethe current tape position.position display.With each key strike the digits inthe display shift to the left,entering the new digitThe -(shift right)button,can be used toin the rightmost column.If,by mistake,a numbertemporarily store tape positions into the locategreater than 59 is punched into the secondsposition display for future locates or to mark thecolumns,the display will automatically convertposition for convenience.the time into minutes and seconds.For example,if 78 seconds is entered into the locate positionThe repeat function yo-yos the transport betweendisplay,it will be converted to 1 minute 18the positions stored in memories 8 and 9.The trans-seconds prior to the execution of any function.port,after pressing REP,autolocates to position 8,Page 5-1