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Care  and  Maintenance 

Even-though  the  heads  used  in  your  488  have 
high wear resistance and are  rigidly constructed, 
performance  degradation  or  electro-mechanical 
failure  can  be  prevented  if  maintenance  is 
performed  regularly. 

CLEANING 

The  first  things  your  will  need  for  maintenance 

are not expensive.  The whole kit with the swabs 
and fluids you will need for months will cost less 

than a couple of high quality cassettes. 

We cannot stress the  importance of cleaning too 

much.  Clean  up before  each  session.  Clean  up 

after  every  session.  Clean  up  every  time  you 
take a break in the middle of a session. 

Here's why: 

1.  Any  dirt  or  oxide  build-up  on  the  heads  will 

force  the  tape  away  from  the  gaps  that 

record  and  playback.  This  will  drastically 
affect the response.  Even so small a layer of 
dirt as one thousandth  of an  inch will  result 
in  degraded  performance.  All  the  money 

you  have  paid  for  high  performance  will  be 
wiped out by a  bit of oxide.  Wipe it off with 

head cleaner and you're back to normal. 

2.  Tape and tape oxide act very much the same 

way as fine sandpaper.  The combination will 
slowly grind  down  the tape  path.  If you  do 

not  clean  off  this  abrasive  material  on  a 
regular  basis,  the  wear will  be  much  more 
rapid and  will  become  irregular.  Even wear 
on  heads  can  be  compensated  for  with 

electronic  adjustments  for  a  while,  but 
uneven  wear can  produce  notches on  heads 
and guides that will cause the tape to "skew" 
and  skip  around,  making  adjustment 
impossible.  This  ragged  pathway  also 
chews up the tape,  producing  more abrasive 

material  which  in  turn  causes  more  uneven 

ear.  This  begins a  vicious circle that cannot 
be  stopped  once  it  gets  a  good  start.  The 
only  solution  to  this  will  be  to  replace  not 
only the  heads,  but the  tape  guides  as well. 
Being  conscientious about cleaning the tape 
path  on  your 488 will  more than  double the 
life of the heads and tape guides. 

Cleaning the Heads and Tape Guides 

All  heads  and  metal  parts  in the tape  path  must 
be  cleaned  after  every  6  hours  of  operation,  or 
before  starting  and  after  ending  a  recording 
session. 

1.  Open the cassette door. 

2.  Using  a  good  head  cleaning  fluid  and  a 

cotton  swab,  clean  the  heads  and  tape 
guides  until the swab comes off clean. Wipe 
off any excess cleaning fluid with a dry swab. 

Cleaning the Pinch Roller 

Clean  the  pinch  roller at least once each  day the 
deck is used.  Use a good rubber cleaner. 

1.  Push  up  the  transport  protection  lever  as 

illustrated.  Press  the  PLAY  key  to  engage 

the  pinch  roller  and  capstan  shaft,  while 

holding the protection lever up. 

2.  Lightly  press  a  cotton  swab  moistened  with 

rubber  cleaner  to  the  pinch  roller  on  the 
right-hand side of the capstan shaft. This will 
prevent the swab from  becoming  entangled. 

Clean  it  until  there  is  no  visible  residue  on 
the  pinch  roller  or  coming  off onto  a  clean 
swab. 

3.  Using  a  clean  cotton  swab,  wipe  off  all 

excess  rubber  cleaner from  the  pinch  roller. 

Make  certain  that there  is  no foreign  matter 
remaining  on  either the  pinch  roller  or  the 
capstan shaft. 

Cleaning the Capstan Shaft 

After cleaning the  pinch  roller, clean the capstan 
shaft.  Lightly  press  a  cotton  swab  moistened 
with  head  cleaning  fluid  to  the  rotating  capstan 
shaft. 

44 

Содержание 488 PORTASTUDIO

Страница 1: ...TASCAM TEAC Professional Division 488 5700123804...

Страница 2: ...28 Punch in out with RECORD 29 Using RECORD FUNCTION switch 30 Using the remote footswitch RC 30P 30 Bouncing Tracks Ping Pong 31 32 Ping pong procedure 31 Ping pong in stereo procedure 32 Using Effec...

Страница 3: ...s not defeated 12 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinch ed by items placed upon or against them paying particular attention to...

Страница 4: ...n upperc asefirstletter like Rec ord mode NOT E FOR U K CUSTOMERS U K CustomersOnly Due to the variety of plugs being used in the U K this unitis soldw ithoutan AC plug Please requestyour dealer to in...

Страница 5: ...single box It is divided intotw o majorsections afull function mixerand an 8 channel multitrack cassette recorder To complete the recording system you ll additionally need these Input devices microph...

Страница 6: ...nputs are usually microphones or instruments going IC different tracks of the recorder In OVERDUBBING theMONITOR section andTAPE CUE of the mixer must be used to listen to previous tracks w hile you r...

Страница 7: ...low show s how the input signal passes through the 488 Mixer section After the MASTER faders they go to the GROUP OUT jacks and the multitrack recorder not show n This is the most important signal rou...

Страница 8: ...k in the headphones You c an adjustthe monitor level ofeac h trackby adjusting itsTAPE control The channels of the Main Mix remain freeto handleexternal inputsforrecording The five MONITOR Source sw...

Страница 9: ...asier to use A three position autolocator MEMO 1 and 2 and Zero allow s k ey positions to be located automatically REPEA T allow s a section to be played over and over betw een the MEM01 and MEM02 poi...

Страница 10: ...inkles snarls and shredding of the edges of the tape with use Even small scratches on the tape oxide can c ause dropouts temporary loss of signal on one or more tracks High quality tapes are less like...

Страница 11: ...Sliders and Controls...

Страница 12: ...correspondingtapetrack Atcenter 12o clock thetapesignalisoffandcantbe heard Turn ittothe leftofcenter MIX tosendthetapesignalthroughthe mixer channel IfINPUTASSIGNisalsoinitsMIXposition thetapereturna...

Страница 13: ...ht 11 12 jack empty The signal automatically connects to both channels makingassignm enttoallfourgroupspossible ASSIGN sw itches Pressto send the outputofthe St ereo channel to any or all of the four...

Страница 14: ...either MEMO point MEMO Hold and press L OC 1 orL OC 2t oent er thecurrentcounterlocation asa newMEMO point RHSL Rehearsal In this mode recording is not possible Pressingthe punc h in pedal orthe RECOR...

Страница 15: ...on to a monitoring system Use the PHONES jack for this purpose DBX NR Thisturnsthe dbxnoise reduction on and offforall eighttracks Normally leaveiton SYNC ON OFF This disconnect s the input and output...

Страница 16: ...evelandEQcontrolstotheircenter 0 position bring all the faders dow n and set all the sw itches to OFF or to theirUp position 1 Have in hand a dynamic microphone and a set of stereo headphones 2 Plug t...

Страница 17: ...theMASTER 1 L 2 R fadert o 7 10 PresstheMONITOR GROU P 1 sw itch 11 TurnthePH ON ES levelcontroluptothe12o clockposition 12 While speaking into the mic slow ly turn the TRIM control in channel 1 to th...

Страница 18: ...eel and put the beginningofthetapeinfrontoftheheads 4 Press the COUNTER RESET switch so you can use the RTZ Ret urn To Zero functionto getbac ktothis point 5 Pressthe RECORD FUNCTION 1 The REC 1 indic...

Страница 19: ...UE Monitor selection CUE MASTER level adjustment Stop in play 19 1 Pressthe RT Z key Thetapewill rew ind automaticallystopping at counter zero point 2 Set the channel 1 INPUT ASSIGN switch to the cent...

Страница 20: ...PUTASSIGNsw itchtotheleft MIXposition 2 Turn the channel 1 PAN control all the w ay to the right EVEN position 3 Chec kto seethatthe channel 1 ASSIGN 1 L 2 R sw itch isstill on dow nposition 4 Bringth...

Страница 21: ...the meter should now be blinking as before Press the RECORD FUNCTION 2 sw itch to turn that indicator off How to record all other tracks Trac k s 3 to 8 can be recorded using almostthe same procedure...

Страница 22: ...d on track 1 all instruments plugged into inputs 1 4 This mixer c hannel is being sentto Group 1 for rec ord ingoneitherTrac k1orTrac k 5 This m ix erc hannel is being sentt oGroup4 forrec ord ingonei...

Страница 23: ...tethe desired sound 1 Connectthe GROUP OUT 1 L jack of the 488 to the left line input of the mixdown deck and the GROUP OUT 2 R jack to the right line input 2 Raise the 1 L 2 R MASTER fader to the sha...

Страница 24: ...ignal balance level and tonality sound right rewind thetape and press PLAYagain to checkthe result 10 Rew ind the Multitracktape again Puta blanktape in the mixdown deckand let it play for 10 to 15 se...

Страница 25: ...mory point is established and the previous memory point is erased A blinking MEMO indicator show n in the meter w hen the MEMO k ey is held dow n show s the corresponding register already contains a l...

Страница 26: ...t PresstheL OC 1k eytofastw indthetapetotheMEMO 1point PresstheL OC 2k eytofastw indthetapetotheMEMO 2point If PLAY is pressed after RTZ LOC 1 or LOC 2 the tape will automaticallystartplayingw henthel...

Страница 27: ...end of the loop it will automatically rew indtothe low erMEMO location and startover Press any transportk eys ex c ept Play The function pressed will be activated If the tape is w ound outside the rep...

Страница 28: ...H SL L ED bypressingthesw itchagain Punch in out procedure Preliminary The 488 offers 3 w ays to initiate the punch in The first is w ith the transportRECORD k ey thesec ond w iththetrac kRECORD FUNCT...

Страница 29: ...unc h in or out Making inserts w ell requires some practice Bec ause of the spacing betw een the eraseandrecord heads you needto anticipateyourin outpointsbya fraction of a second for extremely tight...

Страница 30: ...t oftrack2 again in the monitor mix 4 Tostopthetape pressSTOP Using the remote footswitch RC 30P RC 3OP If you are recording alone and are too busy playing an instrumentto push the switches the use of...

Страница 31: ...ination of the prerecorded tracks by setting both the INPUT SELECT sw itch and T A PE controls to MIX position See the signal flow ingcharton page7 Ping pongprocedure Inthisexample w ewillcombinemater...

Страница 32: ...cord a copyofw hatis ontrack s 1 4 12 You ll hearthe mixbeing recorded ontrac k8 intheheadphones 13 Onc etherecordingisdone pressSTOP 14 The R E C 8 indicatorwill nowbe blinking as before Turnthatoff...

Страница 33: ...rmine how much returns from the reverb unit In this method the stereo inputs function as effect returns SettingEffec tSendLevels The goal is not to distort the device w hile staying above the noise th...

Страница 34: ...ng make sure the EFFECT controls of those channels are set to the center off position Otherwise you will be sending the output of the effect device back to itself which is a kind of feedback If the ef...

Страница 35: ...song The maximum stability or resolution of the synchronization is ensured by a TEAC exclusive error correction circuit in the MTS 30 The 488 has dedicated jacks for SYNC tones and can directly record...

Страница 36: ...s you turn TRIM up the preamplifier gain increases and w hen you turn TRIM full clockw ise MIC position the nominal input sensitivity of the jack inc reasest o 50dBV 0 3mV 4 INPUT ASSIGN switch Thisco...

Страница 37: ...ontrols This section ofthe 488 is m ade up of equalizers and inputfaders and getsitssignalfromthe MIX position of both the INPUT ASSIGN sw itch and theT A PEcontrol The equalizer or EQ is the circuitr...

Страница 38: ...e EFFECT SEND MASTERS level controls They are typically connected to the inputs of external devices such as reverbs digital delays etc After the signals are processed they are usually returned to the...

Страница 39: ...f the mix similar to using a pan pot NOTE If you re feeding a stereo signal to the L MONO jack but have nothing in the R jack make surethatthe LEVELcontrol on the 11 12 channel is turned down all the...

Страница 40: ...ones 19 CU E MASTER control This gets its signal from tape via the CUE side of the TAPE control in channels 1 8 It can also receive signals fed into channels 5 8 if their INPUT ASSIGNsw itch isintheCU...

Страница 41: ...ey alone starts playback b If pressed together with RECORD starts recording punch in c Pressing the key during recording stops the recording punch out without stopping the tape motion 29 PAUSE key Tem...

Страница 42: ...cted by the RECORD FUNCTION switches 33 TRACK REC indicator Track status Off Safe Blinking Record Stand by On solid Record 35 TRACK level meters They register Input to the tracks group mix or Output f...

Страница 43: ...press RECORD orthe RC 30P footsw itch How ever recording will NOT actually take place as long as the RHSL indicator 38 b is blinking This is designed to help you rehearse a punch in without erasing an...

Страница 44: ...lso chew s up the tape producing more abrasive material which in turn causes more uneven ear This begins a vicious circle that cannot be stopped once it gets a good start The only solution to this wil...

Страница 45: ...le It won t ruin previously recorded material nor will getting it back to original specifications be difficult CAUTION If the surface of the unit gets dirty w ipethesurfac ewith asoftcloth orusea dilu...

Страница 46: ...d master faders should not have to be full up atanytime Problem Erratictape sync Solution Try to re record the trackthrough the 488 mixer connectyour synctone generator to a channel of the mixer route...

Страница 47: ...minal Output Level PHONES 1 4 stereo phone jack x 1 Nominal Load Impedance Maximum Output Level EQUALIZER HIGH Shelving LOW Shelving Recorder Section Record Playback Channel Noise Reduction SYNC IN RC...

Страница 48: ...0 dB 0 06 at 1 k Hz 30dBV input level atTrim Max with 30 k Hz low pass filter inserted 0 05 at 1 k Hz nominal input level with 30 k Hz low pass filter inserted 55 dB at 1 k Hz nominal inputlevel with...

Страница 49: ...Level Diagrams MIXER SECTION 49...

Страница 50: ...RECORDER SECTION 50...

Страница 51: ...ptional Accessories RC 30P Remote Footswitch MTS 30 MIDI Tape Synchronizer Head Demagnetizer PW 2Y PW 4Y Insertion Cable TZ 261 Cleaning Kit Except U S HC 1 Head Cleaner RC 1 Rubber Cleaner U S only 5...

Страница 52: ...TRKTRKTRKTRKTRKTRKTRKTRK MONITOR I 2 3 5 6 T B L R ITRK I ITRK8 I ITRK3 I TRK I 11...

Страница 53: ...Block Diagram I S TRACK SOUNNEL REC REPSO AMPLIFIER 0 X MR ENCODER...

Страница 54: ...TASCAM TEAC Professional Division 488...

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