Technics RS-DC10 Manuel utilisateur

Pl.lse tlla rnd u39 thlE supplement manurl togelhor

wlth the seralco m.nual lor Modsl No. BS'DClo' Ordor

No. AD9209339C1 (PP), AD9209340C8 (EB' EG' G).

Nol.: Thls supplEm€nt is intsnded to provide additlonal

lnformatlon or corrections lo lhe sxlstlng Seryice

manual lor Model No RS'DCI0 B€ sure to updat€

you. seryice manual for fuiure roforonce.

FOR USE OF ADJUSTMENT

!CONTENTS P.g.

cAuTroN r ...- ..... ....... . ... ......'. ....... . -... .... .-.. 2

PnEpaRAflOI FOF ADJUSTlrENT..... .....'." ..................".-..'., 3

EXAiIPLES OF PNOEIEXS WTIICH hEOUIRE

aoJusTuElr.......... .......'.......'.-..... a

wltAi You sHouLo Kllovv EEFoRE ADJUSTf ENT............'. 5

aoJusrilE[r .,...........". ....-....'........'.. 7

r. zrEc aoJusTlrENT............. ...................'..............'.'...'. ...'. 7

2. OPTITUM DCC RECOBOING CURRENT

aoJUsTf,El{T.. .-.. ...."...........' l0

3. t cc PLAYEACK LEVEL ADJUSTilENT" ...........". ........'... ll

a. ANALOG OUTPUT LEVEL AOJUSIUENT..'...'.'. --........ .. .. la

Sullir lo.

Modol No Area Colo!r

(PP) USAicaneda

(EB Groai Brltaln

(EG) Gormany, ltaly and

Europe

(G Aala. Latin Amerlca,

Middle Near Easl

and Alrica

Prg.

5. CONFINTATION OF A'{ALOO OUTPUT

DtsToRTrota ^oJUsTfENT.........................----.....'14

oFoEF NO A@3072r09

RS.DClO

Colour

t(Kl---Jl""k'rlr" I

Aroa

6. OOLBY LEVEL ADJUSTXEI{T

,. ANALOG PLAYBACK FREOUEXCY

nESPOISE A}jUSTUENT.,.. ..........................,....,...... t6

s. TIPE SPEED AOJUSTf,Eilr...... ...-....,,.. ....,... ... .. .. .. 16

9. OUTCK REVERSE SEt{SO9 ADJUSTMETT ..............,........ 16

'r0. PLL ADJUSTmENT...... .... ..... 1f

fi. F.L. LEVEL I{ETEn SEN$rlVlTY ADJUSTI|ENi... .. .. .... 17

T2.DCCTESTF|XTUBESUaT..,,. ....,.......,,,,13

13. TnouBrEsHdorltc a ourcK sEFvlcE lNFoR lATloN zl

NOTE : Please put this Supplement-'l (AD9307210SO1 in the

place of Supplement (ADS212389C8).

RS.DClO

ICAUTION !

I Conn."t a wrist slrap (RFKZfiXr6) to the mstor's ground terminat. Always woat a w]tst

straP wh€n replaclng the haads or lnspectlng or repalrlng a P.C.B. to prev€nt electrostatic

breakdown. -q

Reai!tor

0 Mo)

plus. Fig. 1

p wn"n r9m1v]1s the head Fpc from the READ/wFtrE p.c.B., arways attach a shorting

clip to the FPC to prevent electrostatic breakdown.

Head eo!'y

lnllallatlon gcDw

Hoad ass'y

FPC bqrd

(H.ndh ii c.r.lully )

Flg.2

l! u"" the unmagnetized adiusting screw driver (RFKZ0037) for replacing the head and for

AZTEC adjustment.

Cfhe head may be damaged by an oxternal magnetic field.)

lamlnal fo, m€e6ureoonl, bc aura

to use a powe, oord wilh 3-prong

C oullet

Ground te,mlnal

sl16p (RFKZ@35)

(Antl-stallc bracet6t)

**.""*^,*:ll

Msssudng lostrumonl

(Et: Dlgtortion Factor Mot.rl

I RS.DCI0

! PREPARATION FOR ADJUSTMENTS

. How to use Exlenslon cables (RFK20029, RFKZ0030, RFKZ0031) lor AdJustment

Extenrlon cable PCg loPcB

FFKZ0029

RFKZ0030

FFKZ0031

Main P.C.B. - M4h.nlEm Elock (JW02/05/OO) (S€e FlO. 3)

PASC P C E. - Rerd/Wrlte P.C.B. (S€o FlO.4)

Maln P.C.B - PASC Olgllal P C B. (S.e Flo. 4)

ffi"""*'''""u

Tr--r-Y'***

Orgital P C.B

Fig. 3

. Necessary Tesl tapes lor each adlustment

Part No Name Use

ozzcac lokHz Test tape AZTEC Ediu6lmeol

QZZCaO Mirror tape

RFKZ0033 OCC Blank tape Opllfrum DCC racordlnO curranl adlustmsnl

occ-s1 DCC Characteristlcs tepe DCC playb.ck lovel adiullmont and Error R.lo

ch@k

QZZCFtt ACC Tesl tape

AnaloC leedback adlustm.nt

Mlnlmum analoO outpul dl!todlon .dluatmcnl

Analog oulpui lr6quoncy re!9on3€

ch.racte,aslics edlustm€nl

RFKZ(x)38 Oolby level lape Dolby level 6dlustmont

ozzcwAT 3 kHz Test lape Tap€ spood adlultmcnl

J.06

Use FFt(zoo30 lz

Fig. 4

Hs-l,te ru I

. Necossary lools and measurlng lnslrumonts

lTooial

Unmagnotlzed adlusting er€w driver (RFKZq)37)

C0 player (EX: SL.PS700, SL.PS900 €lc.)

tMe;sr,Jinglnstrumontl-l

Oscilloscop€ (30MHz or Hlghe4

Olslorlion Faclor Meter

Frequency Counter

Electrlc Volt Mel€r (AC/OC)

IEXAMPLES OF PROBLEMS WHICH

Probl.n or Rcprlr nlqslrlng Adruslmnt

REOU!RE ADJUSTMENT

Adluslm.nt hm

ACC tape pl.yback lovel l@ low.

Dille.ent ACC lape plEyback tdol! b9tw6n

L.nd Flch ANALOG OUTPUT LEVEL AOJ.

Oilteront ACC tEpg playback lov.lo b€twesn

FWD and REV PLAY mod$.

Distorllon ln ACC tep6 pleyback output

DCC tsp6 pleybeck output drop-out.

Proorcm! prlrsordod on r DCC trp€ ,6motn

alle, ov.rr@ordlng on lhc srma tapc

DCC tape playbaok levol too low.

PASC Oigilel PC.B ha3 ben repalred du6 to

DCC playb6ck oulput dropout

FL l€vol mgler ha6 bogn rgplaosd. LEVEL METER SENSITIVITY AOJ

Molor, belt, or llywhel has b€en replecod

Splndlo Eqdo lslls lo l@kin.

-____- HEAD AZIMUTH AOJ.

r__l Boad/Wril6 P C B

H6rd replecement

o,..FFFFFFFF,,

ffi l---f I I Re6d,wrlroP.C.B.

I I Ro.drwrlte P.C.a-

1---J-

TAPE SPEEO ADJ

Oulck rdorsa machanish mallunctions ANALOG FREOUENCY RESPONSE AOJ

IWHAT YOU SHOULD KNO\it' BEFORE ADJUSTMENT

The DCC head block €mploys the AZTEC mechanism.

AZTEC plays an important role in stabilizing the running of the tape relative to the head.

Sido viow

FATG

The Flxed Azimuth Tape Guldance (FATG) has a diflerent shape above and below the tape.

The upper part @ ls the gulding surface for the tape's upper edge. The slanted area of

the lowe. part (9 is structured so that the lape moves itself upwards. The tape usually runs

along the upper guidlng surlace @.

When lhe head has been replaced, be sure to adiust the AZTEC.

x lf condlilon o or @ occurs, adiust the azimuth screws to obtain the correct position

(as shown in O).

Curllng

*"{nr'"-

O Head and laP€ hub aie corectly allgnsd.

Fig. 3

O Head is too high rolatlvo to lho tape hub.

O Head is too low lolalive to lhc i.pe hub'

Fis.2

I ns.ocro

o Fronl Panel

. Rear Panel

. P,C.B. Locltlon

@ BEAD/WF|TE P.C.B.

o PASC DtctTAL P.C.B

o rRAY P.C B.

(, MA|N P.C B.

4+1:

-t- .i.

E _Etl-o'mm nm'I 6-@-

Flg. 5

Fls. 6

-6-

t-ri.spF,H 1--@ m

rlO@()llTrHixiEr

"l ooollo@pr@ --l-

Itl___-_r--t_ lan\

--------------- F lts

I RS-pc1o

IADJUSTMENT

Pr€96,ation! T.!t S.tup

Tools & Jlgs Mesurlng lnslrumcnt!

1 Mlilor l8p€ (OZCRO)

2. lokHz T6l l.Pr (OZZCACI

3 Unmaonotlz.drdlulting

scrow dtlvo. (RFKZm37)

,a W.l.t !lr!p (RFf\ZdXtr)

1 Oscllloscope

(30MHz or hloheo

FIX OUT(ANALOG) LCH - O8cllloscop6 CH1

RCH - Oscllloicogo CH2

Fig. 1

. Adlustmant StcPr

(1) Trlg0oronCHl.

izi n"iri*" rn" tape control lover lrom the tray mschanlsm'

Sprln0

Fig. 3

. Rough Adluslm.nt

rcTEFn

1. Uslng tho Mlror tapo (OzzCRD):

Adiu;t lhe Azlmuih scrcws so that th€ Mlrror tape

(oizcnO) runs orer lho c€ntor ol the heed'

2 Nol uslng the Mlrror laP6 (OZZCBD):

while pli'ylng back tho lokHz Test tapo (OZCAC)'

adiusi the Azimulh sct€ws to altain a peak on one

channel (ROH) onlY.

aln . P"k

1. AZTEC ADJUSTMENT

Fig.2

R$DC,O I

. Flne Adlusimont

ITTEF-I Forrrrd rldc ldlu3tm.nt

To adlust ln th6 tomard diroction, us€ the rlght sldo Azlmuth

screw.

Oo not touch tho laft slde Azlmuth Ecrew (Flg.5).

1. Run the lokHz Test lape (OZZCAC) to ils mtddlo. Prsss a

fingor on th6 shaded area (@) and run the tape. (fo ksep the

cassetls trom floating.)

2. Whlle kEplng your llnoor ln lhe posltlon given tn Flg. 0.

Pr63s another tlnoor on th6 head ol lho Supply rcel c8p, and

tuh the right sid6 Azimuth sorew to tha riohi. (Controt the

rengc ol momanl to lho l6li and rlght ot th6 CHi wayotorm.)

. Adlustmenl Polnts

t0kHz T.rt

iap.

(ozzcAc)

Top viry o, tho haad tlod(

IEF;]

lC+mondtscdoq!d!

a,rc, frc,n tt !E.

Foilard Plry Azrndl slrr

Ftg. 5

O Stop the right side Azimuth screw at ih6

poinl where only the CH2 waveform

starts to move C. $-"'Qg,

Side vl€w

AZIEC Fig.7

@ Turn the Azimulh screw to the l€fl unfll

th€ point whero lhe wavefotm starls to

move in lhe opposite direction (0.

@ Turn the Azimuth screw to halfway

belween O and @. :fir'8" Fis. e

-6-

Refference flgure

I nsocro

I3T-EF-31 tethod ol Ye.lllc.llon

1. Connocl ih6 oscllloscop€ to ths AZCHK isrmlnal ot lh€ PASO DIGITAL P.C B (Fig. 11).

2. Plsyback lh6 OCC Characteristlcs tape (OCC'S'|).

l, tho pulss wldih shown is within 1soUsc, th€ adlustm€nl is good (Flg. l0).

3. otherwise, ro-adlusl rlarlino wlih |:@ (Fot3r to peoe 7)-

PLLADJ R/t45

Div: O2V

Swe6p; o sms

Flg. 11

ISEFTI Bevcrsr 3ld. rdruslm.nl

To sdiust in the reverse dlrgction, uss th6 lelt slds Azimuth

aorew.

Oo not touch th€ .ioht sldo Azlmuth scrsw (Fig 12)

. Adlustm€nt Polnt6

1. Reverse playback tho 10kHz Test tape (OZZCAC).

(Control thB lape wlth your flnoer.)

2 Whlle r€vorss playing and keeping your flnoor plessed on

the Supply re€l cap (to apply a load), turn the lelt slds Azlmuth

sc.ew as was done for the lorwald sld6 adiustmonl (Flg. 13)

Unmagnetiz€d

adjusling screw driv€r

(RFKZ0037)

Azimuth

screw

Oo adiustmonl bY lollowin0

steps O-O-

Flg. l3

3 The method ol vorlrication i3 also th€ sam8

Oscilloocopo rsngo 50uE.

Wlthln t50Us

B SIOE , ooooo o oo

ezixx g

POINT

PASC DIGITAL P.C.B,

Top vlew ol lh6 head block

LNttoftI

Keep magnelizBd objets

amy trm thls u6..

Rev€rs Play Azimuth scr€w6

Flg. 12

-9-

Rs.pclo I

Proparallons T6sl SotuD

T@18 A Ji06 MeasunnO lnslrum6nls

1. CD play€r & CO

2 OCC Blenk t.p6 (nFK2O(B3) 1. Osclllosope

(3OMHz or hlCh60 'ir- F,G7

2, OPTIMUM DCC RECORDING CURRENT ADJUSTMENT (READ/WRITE P.C.B.)

. Conneol tho C0 playol output lermlnsl wllh fhe DCC rocordlng iominal (aiih€r anelog lnpul, dlgital input, or

opllcal inpul). Record th€ CD sound onlo lhe DCC Blank tapo (RFlgdl3il). Thls recordlng givo3 A-ilme.

lHow to do A.tlmo ocordlngl

Pr.!s REW lo ,rylnd

thr llpe to thc !t!rt

po!ltlon Ro

DCC Blank

Tape(RFKzoo3:l) o

6jtumu6

dnd indicdr

d h.l ot FPC

Flg. 17

Fig. 15

. Adluslment Steps

(f) Put the unit in REC mode using en unrsordod section

of the DCC Blenk lape (RFKZoogt).

(2) Adlust polentiomotsr R167 to obtaln the optimum

voltage on thg oulput lsvsl ot J15l

t How to llnd lhs opllmum vottags

The blas current indiceted on lh€ beck ot the FPC ol

each head is lound using lhe lollowlng lormula;

v=txF151 (120)

tElmpiaT

When lhe blas current ls 160mA:

V=160mA x 12O= !920mV

Y:5(hv

Xll 0!8

PreO€:Xl 0

Tho blaa currant ig

dllt€r€nl lor oach hoad

-lo-

Orcillacop.

lr-l

@- ff"xl -o

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