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10

Accidental Erase/Record Protection
To protect a finished master tape, it is necessary
to punch out both record protect tabs. Even
though you are recording in only one direction,
the 424 MKIII uses the entire width of the tape, as
mentioned above. If, for example, you remove
only one of the tabs, you could accidentally insert
the cassette into the 424 MKIII backwards and
erase all four tracks of the master.

Tape Length
Use the shortest possible tape for a given work. It
is not unusual to play a tape 100 times before you
are finished, so select a cassette length that is as
close as possible to the length of the program
you plan to record. Cassettes C-60 length and
shorter are often made from thicker stock than
longer cassettes.

The tape used in C-120 cassettes is extremely thin
and can cause winding problems, crimping,
wrinkling, and other damage to the oxide coating
of the tape which will destroy your work. Don't
use C-120s in the 424 MKIII.

Remember that at 2X normal speed, and the
"one-side-only" 4-track single direction format
means that you have only one quarter of the
normal play time:

Tape Speed

Cassette

9.5 cm/sec.

4.8 cm/sec.

C-46

11.5 min.

23 min.

C-60

15 min.

30 min.

C-90

22.5 min.

45 min.

(approx.)

Side A
safety tab

Side B
safety tab

Содержание PORTASTUDIO 424 MKIII

Страница 1: ...OWNER S MANUAL 424 3D0023100A...

Страница 2: ...section 41 Master section 41 Output section 41 424 MKIII Recorder Cassette loading and dbx system 42 Transport controls 43 Track controls 44 Displays 44 Autolocators 44 Optional Accessories 47 Care a...

Страница 3: ...mast and supporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrodes and requirem...

Страница 4: ...ossible shock hazard by inadvertent connection to the mains supply If this product is not provided with a mains plug or one has to be fitted then follow the instructions given below IMPORTANT DO NOT m...

Страница 5: ...devices headphones 2 track recorder Effects processors etc The Recording System The Three Steps to Multitrack In TRACKING and Overdubbing the mixer inputs are usually microphones or instruments going...

Страница 6: ...route in the mixer and is called Main Mix The illustration below shows how input signals pass through the 424 MKIII Mixer section After the MASTER fader they go to the L R LINE OUT Signal Flow in the...

Страница 7: ...t to hear are turned clockwise and the MONITOR LEVEL is turned up you can hear the tape playback in the headphones and MONITOR outputs You can adjust the monitor level of each track by adjusting its T...

Страница 8: ...rder has 4 tracks while the mixer has a stereo output however using the DIRECT feature you can record on any or all of the 4 tracks at one time For more details see Recording on More Than Two Tracks S...

Страница 9: ...ot play back properly on stereo cassette recorders Material recorded on the 424 MKIII must be mixed down to stereo for final distribution The 424 MKIII needs the entire width of the tape to record its...

Страница 10: ...are finished so select a cassette length that is as close as possible to the length of the program you plan to record Cassettes C 60 length and shorter are often made from thicker stock than longer c...

Страница 11: ...end jacks They get their signal from a point just after the channel fader TAPE CUE The EFFECT 2 controls can be switched to act as the TAPE CUE level controls by means of the correspondingly labeled s...

Страница 12: ...be located to the MEMO 1 or 2 point Pressing LOC for half a second or more allows you to check the memo point on the display REHEARSAL Lets you program a punch in out sequence to be used for rehearsal...

Страница 13: ...o appears in the display The POWER switch is located on the back beside the power cable 4 Plug your headphones into the front PHONES jack so you can hear the input signal going to the mixer section of...

Страница 14: ...e right You will hear your voice in the left side of the headphones When using a line level source such as electronic instruments instead of the mic the TRIM does not need to be turned up very far if...

Страница 15: ...eady mode 6 Speak into the mic You will see meter 1 move If no level or too low a level is shown continue to speak into the mic and slowly turn the channel 1 TRIM control to the right MIC until the me...

Страница 16: ...o the right TAPE CUE position 2 Slide the MONITOR SELECT LINE OUT switch to the center MONO position 3 Press the RTZ key The tape will rewind automatically stopping at the zero counter point 4 Press P...

Страница 17: ...N and RECORD FUNCTION 1 Set the channel 1 INPUT selection switch to the left MIC LINE position 2 Turn the channel 1 PAN control all the way to the right R position 3 Bring the channel 1 fader to 7 4 B...

Страница 18: ...the level being recorded 11 Press STOP to stop recording 12 The REC 2 indicator in the meter should now be blinking as before Set TRK 2 RECORD FUNCTION switch back to its SAFE position and the indicat...

Страница 19: ...ack the Left and Right mixes will be recorded on Note that in this method the mixer channel number has nothing to do with what track the instrument winds up on Any mixer channel can be panned to any t...

Страница 20: ...appropriately numbered channel as well as with channel 5 or 6 the signal level will be doubled as it is being mixed through two channels together Use the stereo channels 7 and 8 to add additional sig...

Страница 21: ...right line input 2 Raise the MASTER fader to the shaded area between 7 and 8 3 Set the MONITOR SELECT LINE OUT switch to the L R position 4 Set all the INPUT select switches on the input channels to...

Страница 22: ...Put the mixdown deck into Record mode then press PLAY on the 424 MKIII 14 When recording is done stop both machines rewind the mixdown tape and listen to it If the mixdown tape does not sound right m...

Страница 23: ...ed while MEMO IN is held down a new memory point is established and the previous memory point is erased MEMO points can t be entered while the tape is locating to either MEMO point or during REPEAT If...

Страница 24: ...key If you hold it down for 0 5 second or more autolocation does not start and only the tape counter shows the location point Hit the LOC 2 key to fast wind the tape to the MEMO 2 point Note For the d...

Страница 25: ...end of the loop it will automatically rewind to the lower MEMO location and start over Press any transport keys except Play The function pressed will be activated If the tape is wound outside the repe...

Страница 26: ...e tape adjust the TAPE CUE control on channel 2 until the MONITOR level meters read a maximum of from 0 to 3 and adjust the MONITOR LEVEL control for the desired headphone listening level 5 Play the i...

Страница 27: ...D to start recording punch in The IN indicator will glow on the display and an LED will start flashing above the RECORD button The counter readout at which the key was pressed is stored as the PUNCH I...

Страница 28: ...witch RC 30P Suggestion During the punch in setting or the rehearsal process if you press the footswitch after STOP the tape will rewind to your START point Rehearsal function is not available while t...

Страница 29: ...UNCH Mode press CLEAR The memory points will be cleared and AUTO will turn off in the display The 424 MKIII lets you manually punch in too There are 2 ways to initiate the punch in recording The first...

Страница 30: ...the REC 2 indicator is blinking and locate the tape to a point a little before the error then press PLAY 3 When you reach JUST BEFORE the error press the footswitch This has the same effect as pressi...

Страница 31: ...For example you can bounce tracks 1 3 along with another live part onto track 4 for a total of four parts on one track Bouncing Tracks Ping Pong Ping pong procedure In this example we will combine mat...

Страница 32: ...t was blinking will turn on solid and track 4 will record a copy of what is on tracks 1 3 9 You ll hear the mix being recorded on track 4 in the headphones 10 Once the recording is done press STOP 11...

Страница 33: ...ls determine how much returns from the reverb unit In this method the stereo inputs function as effect returns Setting effect send levels Setting the output level of effect devices The goal is not to...

Страница 34: ...atching effects to an input channel There s no law that says the output of an effects device must be plugged into a STEREO INPUT either They can also be plugged into LINE INPUTS just like any other so...

Страница 35: ...CAM MTS 30 MIDI clocks are themselves a computer type digital language and cannot be recorded on analog tape it is necessary to convert them to recordable FSK Frequency Shift Keying signals using an a...

Страница 36: ...t the same time Input Section 39 Features and Controls 40 7 INPUT select switches channels 1 4 This is used to control what the source of the channel is The left position MIC LINE is used when recordi...

Страница 37: ...are using these inputs for MIDI virtual tracks you should probably set this switch to MON while recording tape tracks and L R on mixdown Stereo Input Section 18 MONITOR SELECT switches These switches...

Страница 38: ...Dolby B type NR The dbx NR system provides a net noise reduction broadband not just hiss of about 30 dB and also permits a net gain in tape headroom of about 10 dB allowing recordings over a 90 dB dyn...

Страница 39: ...tion 32 F FWD key Winds tape at high speed in the forward direction 33 STOP key Stops any tape motion and disables all transport modes 34 PLAY key a Press this key alone to start playback b If pressed...

Страница 40: ...and 46 above 48 REPEAT switch This provides a playback loop or block repeat between MEMO 1 and MEMO 2 points Track Controls 38 RECORD FUNCTION switches 1 4 These switches put the respective tracks in...

Страница 41: ...ssign any point on the tape as a starting location Pressing RTZ 44 gets you back to that location 51 REHEARSAL switch Helps you rehearse a punch in without erasing anything until you are ready to actu...

Страница 42: ...comes off clean Wipe off any excess cleaning fluid with a dry swab Even though the heads used in your 424 MKIII have high wear resistance and are rigidly constructed performance degradation or electro...

Страница 43: ...tened with head cleaning fluid onto the shaft Clean thoroughly and wipe off excess fluid Degaussing the Tape Path 1 Hold the degausser about 1 m 3 feet away from the recorder Turn it on slowly move in...

Страница 44: ...k ohms Nominal Input Level 60 dBV 1mV MIC position 20 dBV 0 1 V LINE position Maximum Input Level 3 dBV 1 4 V at Trim Min MIC LINE INPUT Ch 1 6 1 4 phone jack x 6 Input Impedance 5 6k ohms Nominal Inp...

Страница 45: ...TPUT 65 dB at a nominal input level of 60 dBV 4 MIC INPUTS to LINE OUTPUT 60 dB at a nominal input level of 60 dBV 1 LINE INPUT to LINE OUTPUT 76 dB at a nominal input level of 10 dBV 4 LINE INPUTS to...

Страница 46: ...RALIA 240 V AC 50 Hz Power Consumption 22 W In these specifications 0 dBV is referenced to 1 Volt Actual voltage levels are also given in parentheses 0 316 V for 10 dBV rounded off to 0 3 V dbx is a r...

Страница 47: ...54 53 Block Diagram...

Страница 48: ...xley Centre Watford Herts WD1 8YA U K Phone 01923 819699 TEAC DEUTSCHLAND GmbH Bahnstrasse 12 65205 Wiesbaden Erbenheim Germany Phone 0611 71580 TEAC FRANCE S A 17 Rue Alexis de Tocqueville CE 005 921...

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