Marantz 75DC1010/1B User manual

75DC1010 / 18/28
75DC1020 / 1A/2a
Deck / CD Player
TABLE OF CONTENTS
SECTION
PAGE
1.
TECHNICAL
SPECIFICATIONS
1.00.0...
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1
2.
BLOCK
DIAGRAM
AND
LEVEL
DIAGRAM............ccccccccseeeseeereeeereeerteeeeseteecenesnnasaeteanseeeeaeeneesseseeneraeeenannaays
2
3,
CONNECTION
DIAGRAM
........ccccceccsececeeeseeessesaescsreceeeseesensecsessseseeessesessensesaeenerssessersuseeresenensessessssaneesenarensents
4
4.
SCHEMATIC
DIAGRAM
AND
PARTS
LOCATION
(Pattern
Side)...........::sscseeesenenenerteeeseesreesrensesesersenesaees
6
5.
EXPLODED
VIEW
AND
PARTS
LIST
/
DISASSEMBLY
............cccsceseesesseterseeseeettsenssteenesseseserseenaeerssrsnnearens
19
6.
TEST
EQUIPMENT
REQUIRED
FOR
SERVICING
........ccceessessereceeseenereeteeesereenseneeeeesensnsenensesseerseneetaeenens
25
7,
ELECTRICAL
ADJUSTMENT
|.........:.cccccccccscsecsscesssscsecsesseesseceaneaseseeseesseeneeceeneeseaesneeseneseseniesessenessesaseneasseeeneeny
25
8.
MICRO-PROCESSOR
DATA
AND
IC
DATA......ccccccsecssseecescesseeseeeeeteeteensersestanserescneesesaneeganeessassesseneseeganeeens
29
9.
ELECTRICAL PARTS
LIST..........cccccccccescesesseeeesecsseeceseecseesesaeenecsesseneeesesecsecssnesssessassaaseenessassanerecaeesenecaseesnaeantng
32
model DC1010 /DC1020 —ss20 725 stove
First issue : 1994/10
PCS 79 697

MARANTZ DESIGN AND SERVICE
Using superior design and selected high grade components,
MARANTZ company has created the ultimate in stereo sound.
Only
original
MARANTZ
parts
can
insure
that
your
MARANTZ
product
will
continue
to
perform
to
the
specifications
for
which
it
is
famous.
Parts for your MARANTZ equipment are generally available at our
National Marantz Subsidiary or Agent.
ORDERING PARTS
MARANTZ EUROPE B.V.
P.O. Box 80002
Building SFF 2
5600 JB Eindhoven
The Netherlands
Phone : [phone]
Fax : [phone]
Parts
can
be
ordered
either
by
mail
or
by
telex.
In
both
cases,
the
correct
part
number
has
to
be
specified.
The
following
information
must
be
supplied
to
eliminate
delays
in
processing
your
order:
Onrhwon>
Complete address
Complete part numbers and quantities required
Description of parts
Mode! number for which the part is required
Way of shipment
Signature: any order form or telex must be signed,
otherwise such part order will be considered as null and void.
ADDRESSES
AUSTRALIA
MARANTZ AUSTRALIA
Figtree Drive
Australia Centre
Homebush, NSW 2140
AUSTRALIA
AUSTRIA
MARANTZ
Hietzinger Kai 137a
1130 Wien
Austria
BELGIUM
MARANTZ EUROPE B.V.
Div. Benelux
P.O.Box 80002
Building SFF 2
5600 JB Eindhoven
The Netherlands
CHILE
MARANTZ DIVISION OF
PHILIPS S.A.
Av.Santa Maria 0760
Casilla 2687
Santiago
Chile
DENMARK
MARANTZ
Horsvinget 5
2630 Tastrup
Denmark
FINLAND
MARANTZ
Kuortanegatan 1
00520
Helsingfors 52
Finland
FRANCE
MARANTZ FRANCE
4 Rue Bernard Palissy
92600 Asniéres
France
GERMANY
MARANTZ GERMANY GmbH
Kleine Heide 12
Postfach 4802
Hatle-Westfalen
Germany
GREAT BRITAIN
MARANTZ HiFi UK Ltd.
Kingsbridge House
Padbury Oaks
575-583 Bath Road
Longford Middlesex UB7 OEH,
U.K.
GREECE
ADAMCO ELECTR. SA
P.O.Box 21025
Hippocratus Str. 188
Athens 11471
Greece
ITALY
MARANTZ ITALIANA SPA
Piazza IV Novembre 3
20124 Milano
Italy
JAPAN
MARANTZ JAPAN INC.
35-1, 7-chome, Sagamiono
Sagamihara-shi, Kanagawa
Japan
KUWAIT
AL ALAMIAH ELECTRONICS
P.O.Box 8196
Saimiah
22052 Kuwait
NETHERLANDS
MARANTZ EUROPE B.V.
Div. Benelux
P.O.Box 80002
Building SFF 2
5600 JB Eindhoven
The Netherlands
NORWAY
MARANTZ
Postboks 7034
Assiden
3007 Drammen
Norway
PORTUGAL
COREL
Av, da Liberdade
211-2 Esq.
1200 Lisboa
Portugal
SAUDI ARABIA
AL ALAMIAH ELECTRONICS
P,.O.Box 5954
University Street
Riyadh 11432
Saudi Arabia
SOUTH AFRICA
MARANTZ S.A.
10 Bond Street
Randburg 2194
P.O. Box 7703
Johannesburg 2000
South Africa
SPAIN
MARANTZ SPAIN
Martinez Villergas 2
Apartado 2065
Madrid 28027
Spain
SWEDEN
MARANTZ
Box 1324
17125 Soina
Sweden
SWITZERLAND
MARANTZ SWITZERLAND
Postfach
8010 Zurich-Mullingen
Switzerland
TRADING
MARANTZ TRADING
P.O.Box 20008
Building SFF 2
5600 JB Eindhoven
The Netherlands
All of the above locations are fully equipped to take care of your total service needs or can advice you. Because various Countries
have differing configuration requirements, it is necessary that you contact the service facility in your particular country.
In the event that there is no service location listed for your country, please contact the nearest facility for the necessary assiga nce.
PCS 79 698
In case of difficulties, do not hesitate to contact the
Technical Department at above mentioned address.

1. TECHNICAL SPECIFICATIONS (DIN)
CD PART:
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SAMpling freQUENCY.........ccceceeseeseeseteceesetetseseseseeteneeseecsenterseenstseneeeens
QUANTIZATION Ss oes sece eek ete eee wasn detesesh ee Mesaeed SEE eee teees
EECOFCOMTOCTION Sescicseck soscg scsedes teed hho sade chat bes cla deca ear Saeed thaws don nded csotess
D/A sCONVOPSION secs. cvscedecsees cdsc05 cecas ucacecestat ouaatecs ede a epteccbebeebed es cancocess
WOW.AN FUME cdcsschvccecbescecdbecvavsertevsececeank ccedbesstvasdees stesscvesedebvebeanessee
Optical Readout System
Frequency Characteristics
FLOQUENCY FANGE........ ee ecscssecessseesssesssceseeeeeeseseseeeressecetsesteeseeesanete
DYNAMIC LANGE... eeececcseesseeseeesesecssesenereneeseesseasseneessesenstaneesenereseessens
SIN atl! ciscosecedacvecevces$i tac 08 tes ig ceaaetntaveces tag vanents seeds auastenes obaaedebeecteess
Channel separation (1 KHZ) 0... ccscscssesessesessesessneeeeenenenseseneeneenenens
TD (1) KZ) i ccececessctan cece atatedeessacsasttacteesbecssdevtede atrentaseatsisitenrse ales
Analog output jack
Output
IOVEL
ou...
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Output
IMPCMANCE
........
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Digital output
Optical
OUtDUt
A...
ceeseescsesseseeteesesseeeeeeeseeeestenseesneneeeaeeeenersenarnes
TAPE PART:
Motor
(S)
ANd
type...
ceeessescsssesscsssesseesaeeecesseseesnensneseaensserererarsssases
Number
of
hoadS..............cccsssccccsscssesrecnsncesssrsoverserseasssnerscsssansenavesrssseesess
Frequency range (3 dB limits~no Dolby NR)
Type IV (metal) tape 0... cecessenessssesereeenessseneteenensssnsseseessereesseees
Type
It
(CrO2)
tape...
esesesesscesesecsenseeeretetererenessssansnseeressstssteasarsesenees
Type
I
(Fe/Normal)
tape........sccsesecseseetereeersessssssetsenseseanenesseeneneees
Signal
to
noise
ratio
(CrOz
tape
at
1
KHz)
(no
Dolby
NR/Dolby
B
and
C
NR)
Wow arn flatter 00... cc cccccsceeecesseetensecstesersecerenssesesesneenessasesesereseees
Output
level/iMpedance...........cccseeseeceteeeneeensenseestensesesseseetsetansensees
Power supply
EV WQPSION sc sessceccsvcsctsosvnvded cisinencovavsasactascdesonousstaedsoeeash ouaheuseeuteceveienete se
T2N@TSIONS woes icseveiecisleccdssddectvugateduveedsadteudep teittecebabveasvebensvatensesneebstese
F'VSrSlOM svc ve 5c cobcccadecsoscandu las decadesecestevis cvasesig cds sstonacaccttneanscencuececebsteee
K VOPSIOMN ss ciccecesocesveestaeendacactise vaddsateatanceresctendeeeadscacecetessteced onettssascnnbes
UP
VOPSION
bi
ficeccchececdstessectecsicseessbasd
cass
dipabssesetveshtiud
bea
ececencacotesalvecaseoests
Power COnSumption........... se sccesescscesseessenseseeeeeeeesseeneenesneenerseseneerees
Cabinet, etc.
Dimensions
DePth oo... ccseneeesecesseseeseesenensseenenereneseseseessenensnsssessenesseseeesans
Net Weight .........scseesesesscstssesesseeecseseesnessessssensneresasassesrasessssevesssenses
Operating
temperatures
...........cscccsesecesetereseteseeeeserereaserereaestesseaenenenens
Operating
NUMICItY
0.0...
cesses
seseeteneteeseeteneeetatseeseescetensesseesstaenes
Specifications subject to change without prior notice.
wi adhe sgededusuaucavnas sublycbeducweestetbiveedeteaeeastaleaenss 0.006%
jabs readied Midee eee 30 Hz~16 kHz
isi a (rae Seb du tet tesdhonsseddeec utweriestinal seeaues 30 Hz~16 kHz
sousbadadcatessveblsssecss ciebas dae wavietaaies 30 Hz~14 kHz
sails Mapttad sends Svesastecvae teeiea tents 58/67/72 dB
Hive weeds Shah OT A ee haere staan 0.16%
Sich tdaasededdohi Wiascdadeasdiecieasttanauasiaibeusse 500 mV/1 kQ
es ia lout veoh iy Aa beh 4.9 kg (DC1010)
5.0 kg (DC 1020)
PCS 79 699

2. BLOCK DIAGRAM AND LEVEL DIAGRAM
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PCS 79 701

4.
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DIAGRAM
AND
PARTS
LOCATION
(pattern
side)
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{VERS.:VERSION, U:U.S.A, F:Japan, K:Far East, /XX:Europe]
VERS, PART NO. SESCHIPTION PART NO.
O. [COLOR] (For EUROPE) (For UsK/F)
18 ESCUTCHEON, DOOR AL PANEL ASSY| 294K063500
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VERS. PART NO. se caisricn PART NO.
No. [coLoR| (For EUROPE For U/K/F
PACKING
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CUSHION (L SIDE}
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294K801010
157J809010
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294K248510
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4822 443 64297
4822 443 64298
294K851110
294K851 250
294K851310
USER MANUAL [DC1020] (F}
USER MANUAL [DC1020] (U}
USER MANUAL [DC1010/1020}
4822 736 22228
0148 FL WINDOW (001020) 271K158010 MZ-EUR
0158 IR LENS 271K355010 WARRANTY CARD JAPAN 9631000150
0168 POWER BUTTON 1674270030
0168 POWER BUTTON (BLACK) (DC1020] | j 157J270230 4822 26510092 | JACK AC ADAPTER,SMK S-I6116 | YJ04001240
2001000330
4822 321 21438 | CONNECTIVE CORD, RCA ST IM
017B POWER BUTTON SPRING 271K115010
018B MAGNET ASSY [DC1020) 271 K305500 4822 218 30797 | UNIT K, REMOTE COMMANDER 2K294K0010
021B NUT [DC1020} 4467011010 AC10200C
031B 4822 411 61992 | SLIDE KNOB [DC1010) 294K154110 BATTERY SUM-3NG-2P 2F23102000
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284K154210
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SLIDE KNOB {BLACK} [DC1020}
0328 4822 454 21105 | TRAY ESCUTCHEON FOR ACC 294K063110
[DC1010}
0328 4822 454 21106 | TRAY ESCUTCHEON FOR ACC 294K063010
[0C1020}
032B TRAY ESCUTCHEON FOR ACC 294K063110
(BLACK) {DC1020)
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DISASSEMBLY
1. REMOVING THE TOP COVER AND SIDE PANEL
294K063020
294K063220
0338
0338
4822 454 30501
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4822 522 33389 | GEAR ASSY (DC 1020] 4467058500
4822 404 21283 | LEVER [DC1020) 4467354010
4822 361 21687 | D.C.MOTOR ASSY {DC1020} +MMo000630R]| Remove the screws @ ~ ©.
4822 528 40363 | PULLEY {0C1020} 4467262020
4922 358 31264 | BELT (DC1020} 4467264010
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4822 492 33411 | SPRING (0C1020) 4467115010
4822 271 30768 | LEAF SW{DC1020) smo1011530 | 1) While opening the cassette tray and remove the tray
4822 46271954 | STOPPER WASHER (0C1020} 204K114210
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51821702U0
4467163500
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157J257010
1574257120
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SIDE PANEL (R) [DC1010)
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SIDE PANEL (R} (BLACK) {001020}
SIDE PANEL (1) [DC1010)
SIDE PANEL (1) [0€1020)
SIDE PANEL (1) (BLACK) [DC1020}
BUSHING (R) [DC1010)
2) While opening the CD tray and remove the tray
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4822 443 41304
4822 426 30156
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4822 426 30157
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4822 281 50181
4822 532 21484
4822 532 12254
271K057050
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271K057020
271K057120
4467055010
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4822 462 42068
4822 462 42066
4822 462 42069
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B.H. TAP. SCREW 51280306M0
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SUPPORT FOR PRO/DOLBY PCB 153J101010
REAR PANEL (7 294K250040
4822 532 61184 | BUSHING 085J259010
4822 532 60948 | BUSHING 450H259010
4822 691 30353 | MECHANISM, CD LOADER ASSY 305K304510
YC01800610
¥C01900160
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VIDE-V18238 / Druck 10

(VERS. :VERSION, U:U.S.A, F:Japan, K:Far East, /XX:Europe]
NO, |COLOR| (For EUROPE) (For U/K/F)
4822 46450987 | FRAME ASSY 4467401500
4822 443 64033 | TRAY 4461163210
4822 46451063 | CHASSIS 4487105210
4822 256 $2106 | HOLDER ASSY 4461271500
4822 40370979 | ARM 4467002210
4822 403 70981 | ARM 4467002220
4822 403 70982 | ARM) 4467002230
4822 532 40229 | RETAINER 4467104210
4822 40111505 | CLAMPER, PLATE 4467005240
4822 403 70983 | ARM 4467002240
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4467262210
4467058210
4467058220
4467005250
4467115210
4822 528 50363
4822 522 33397
4822 522 33398
4822 492 71413
4822 49271414 | SPRING 4467115220
4822 358 31268 | BELT 4467264210
4822 27721716 4 SLIDE SWITCH *SS000360R
4822 361 21669 | D.C.MOTOR ASSY *MM000510R
WASHER 4461012210
4822 462 71954 | STOPPER WASHER 204K114210
4822 502 21449 | SCREW 4467010210
SCREW 4467010220
4822 50221451 | SCREW 4467010230
4822 502 21453 | SCREW 4467010250
BALL 6105001070
4822 532 21487 | BUSHING 4461259210
NUT 4467011210
SCREW 4467010260
CLAMPER GROUND PLATE 4467005260
4467304500
4357105110
MECHA ASSY, DECK NMZ-9601H
CHASSIS
4822 464 50917
LEAF SPRING 4467116110
4822 46450918 | HEAD CHASSIS ASSY 4351105120
4822 462 10524 | HEAD PLATE ASSY 4357128110
4822 49271166 | LEAF SPRING AZIMUTH 4351116120
4822 528 90875 | IDLER PULLEY ASSY 4467001110
4822 522 33278 | GEAR, CLUTCH 4351058110
4822 522 33279 | GEAR, REW 4357058120
4822 403 70682 | ARM, FR 4357002110
4822 522 33281 | GEAR, FR 4357058130
4822 522 33282 | GEAR, REEL 4357058140
4822 46271856 | CAP. REEL (A) 4351067110
4822 532 21462 | BUSHING, REEL (B) 4357259110
4822 403 70683 | PLAY ARM 4351002120
4822 522 33283 | GEAR, PLAY CAM 4357058160
4822 403 70684 | TRIGGER ARM 4357002130
4822 40370685 | SELECT ARM 4357002140
482252881477} GUIDE, TAPE 4357051110
4822 522 33284 | GEAR, ROTATION 4357058170
4822 522 33285 | GEAR, RETURN 4357058180
4822 403 70688 | GUIDE, CASSETTE 43517051120
4822 403 70986 | P ROLLER ARM (R} 4357002150
4822 403 70987 | P ROLLER ARM (lL) 4351002160
4822 403 10304 | ARM, BRAKE 4357002170
4822 528 60414 | FLYWHEEL (RDH) 4467273110
4822 528 60415 | FLYWHEEL (LDH) 4467273120
4822 49271149 | SPRING, RETURN 4357115110
4822 49271151 | SPRING, REEL 4357115120
4822 492 71153 | SPRING, CLUTCH ARM 4367115140
4822 49271157 | SPRING, TRIGGER ARM 4357115180
4822 49271417 | SPRING, SHIFT 4467115120
4822 49271418 | SPRING, HEAD CHASSIS 4467115130
4822 49271161 | SPRING, P ROLLER (R} 4357115210
4822 492 71162 | SPRING, P ROLLER (L) 4357115220
4822 49271163 | SPRING, BRAKE ARM 4351115230
4822 532 52473 {| WASHER, POLYSLIDER 4357012110
4822 466 62425 | SEAL, REFLECT 4467108110
4822 502 21222 | SCREW, AZIMUTH 4357010110
4822 40111508 | CLAMPER, HEAD WIRE 4357005110
4822 502 21223 | SCREW, HEAD (RVS) 4357010120
4822 53252474 | WASHER, POLYSLIDER 4351012120
4822 532 52475 | WASHER, POLYSLIDER 4357012130
4822 532 52471 | WASHER, TEFRON 4277012110
4822 53252476 | WASHER, POLYSLIDER 4357012140
4822 53252472 | WASHER, POLYSLIDER 4277012120
23
NO. |COLOR{ (For EUROPE} (For U/K/F)
4822 532 52477 | WASHER, POLYSLIDER 4357012150
P. TAPT. SCREW 51570204U0
TAPPING SCREW 4357010130
TAPPING SCREW 4357010140
4822 464 50992 | CHASSIS, MECHA BASE ASSY 4467105500
4822 403 70686 | ARM, PINCH ROLLER (R) ASSY 4357002500
4822 403 70687 | ARM, PINCH ROLLER {L} ASSY 4357002510
4822 522 33286 | PLAY GEAR ASSY 4357058500
4822 528 20754 | CLUTCH ASSY 4357061500
NYLON WASHER 4467012120
NYLON WASHER 4467012130
4822 358 31269 | BELT, DRIVE (HA) 4467264110
4822 358 31271 | BELT, DRIVE (HB) 4467264120
WASHER
TAP TITE SCREW
HOUSING
TAPPING SCREW
SEMS SCREW
MOTOR WASHER
WASHER
4267012120
4467010110
4467280120
4467010120
4467010130
4467012110
4467012140
4822 532 52469
4822 502 30734
4822 249 10469 | PLAYBACK HEAD ¥(H500020R
4822 28150172 | SOLENOID COIL ASSY *ME100080R
4822 361 21671 | D.C.MOTOR ASSY *MMO000620R
*HW100020R
*HW100020R
PHOTO UNIT
PHOTO UNIT
4822 130 82364
4822 130 82364
4822 271 30781 | MINI SW, LEAF SW ¥SM000250R
4822 271 30779 | MINI SW, LEAF SW ¥SM000240R
PCS 79 711

PCS 79 712
{VERS. :VERSION, U:U.S.A, F:Japan, :Far East, /XX:Europe ]
Rae PART NO. GESCAIRTION PART NO.
NO. |COLOR| (For EUROPE } (For U/K/F)
4822 691 30352 | MECHANISM, CDM12.1N2T 294K304500
FRAME KIT
4822 361 21741 | D.C.MOTOR
4822 271 30853 | MINI SWITCH
4822 522 33521 | GEAR
4822 528 81537 | PULLY
4822 522 33522 | GEAR KIT
4822 358 31314 | BELT
4822 44351265 | CASE
BUFFER SUSPENSION
4822 40371209 | ARM
305K401500
MM0030002R
$M01020620
305K058030
305K262010
305K058500
305K264010
305K064110
305K056010
305K002010
4822 44450732 | CASE, CD TRAY ASSY 305K064500
CASE, CD TRAY 305K064010
SPRING 305K115010
CAM 305K054010
GEAR 305K058010
4822 401 11553 | CLAMPER KIT 305K005500
SPRING 305K115020
24

Q¢-EARILESRBAH
@
2D
Model
FHENMEF
zyYVFTFSDICRO4
OBLET
Fo
4-74 A 5GRH (AF OSC)
7YFR-F (6000)
VTVM
Bea
AYUOAI-TS
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CHEKBELE
SOD)
AC-224
(Normal)
|
AC-712
(Metal)
AC-513
(CrO2)
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LUMBS
LUT
-
SEER
LTCES
>
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TCC-112
+
MTT-111..000.....
79-79%
F-TSAE-F
TCC-140 - MTT-112B.......... S/N It
TCC-130 + MTT-150........... BA Av se
TCC-161 - MTT-256............ BEEZ (Normal FA)
TCC-261 + MTT-356.....0-- FABER (Cr O2/Metal Fi)
TCC-192 + MTT-121........... PARP
TCC-194
+
MTT-141............
Fevaweny-vav
TCC-174A + MTT-255M.....7 VV Aga
(A-BEX) - (TEAC)
O Ay FBELUAA F7-Y (M-300)
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6.
TEST
EQUIPMENT
REQUIRED
FOR
SERVICING
For
measuring
or
checking
your
Cassette
Deck,
the
following
instruments
and
materials
are
necessary.
¢ Audio Oscillator (AF OSC)
¢ Attenuator (600Q)
¢ VTVM
* Distortion Meter
¢* Oscilloscope
¢ Wow and Flutter Meter
¢ Torque Meter (Cassette Type)
* Digital Frequency Counter
*
Blank
Tapes
(Completely
erased
with
bulk
eraser)
AC-224
(Normal)
AC-513 (CrO2)
AC-712 (Metal)
NOTE:
If
any
doubt
is
noted
in
a
measured
value,
use
new
tape.
¢ Test Tape
TCC-112:MTT-111
TCC-140:MTT-112B
TCC-130:MTT-150
TCC-161 -MTT-256
Wow and Flutter, Tape Speed
Signal-to-Noise Ratio
Level Adjustment
Frequency Response
(for Normal)
Frequency Response
(for CrOz2 and Metal)
TCC-192-MTT-121 Cross Talk
TCC-194-MTT-141 Channel Separation
TCC-174A:MTT-255M Azimuth adjustment
(A-BEX): (TEAC)
° Mirror cassette 12m padiless
TCC-902-MTT-902 Tape travel check
¢ Head and guide gauge (M-300)
THG-801
TCC-261 -MTT-356
7. ELECTRICAL ADJUSTMENTS
(A) Remark for adjustment
1)
Test
Tapes
damp
easily.
Erase
magnetism
of
heads
and
capstans,
etc.
completely
with
head
erasers
before
using
them.
Keep
away
from
measuring
instruments
have
transformer
inside
and
tape
eraser.
The
method
of
magnetism
erase:
turn
the
head
eraser
on
a
little
away
from
the
sets.
Then,
close
heads
and
capstans
and
move
up
and
down
4
-
5
times.
Turn
them
off
after
making
distance
slowly.
4)
Tools
you
are
going
to
use
should
not
be
magnetized.
Erase
magnetic
them
by
bulk
eraser
sometimes.
Adjust
semi-fixed
resistor
for
adjustment
and
variable
coil,
etc.
spin
and
the
number
of
times
as
less
as
possible.
Adjust
and
check
SPEED
and
WOW,
etc.
by
normal
sets
condition.
A little bond lock and pay attention to sticking around
and flowing.
Check
AC
voitage
input
and
audio
Oscillator
output
voltage
2
-
3
times
per
day
to
operate
as
normal.
_
3
—
5
~—
6
=
=
8
—
PCS 79 713

@R#GEL NI (S.R_L)
1 F-TECRE BRR. 250nWb/m ORR & RRS
VRVOT ECHO, MEHVAVER-F¥-AF—-WEE
FAKF-TFOMRLAFODES OCT.
- IBLE (nWb/m) ............-- 160 185 200 220 250
* BRM - 9 - ATH. By EX = ae
- PALS (nWb/m) | ie ni |
Be eee
TCC-130 (DOLBY REFERENCE LEVEL) ~“""
(MTT-150)
S.R.L
(MTT-212)
Em :
(1) RAISER RGR = PAPA + RR
2 ey bhCHe FVE-LAVERBELEL T4000, YW
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Lit.
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ET.
3) CORBPSADUAVE-4dBE LZ (FY FARO
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SRE BA LAV RE
PCS 79 714
(B) S.R.L/Standard Recording Level
1. S.R.L (Standard Recording Level) which is 250nWb/m
on a tape by* OPEN CIRCUIT MAGNETIC FLUX. The
relationship among recording level, meter scale and test
tape are as follows:
OPENCIRCUIT 160 185 200 220 250
MAGNETIC FLUX | | | | |
(nWb/m)
* OURSTANDARD -4 -3 -2 -1 OdB
METER SCALE | | | | |
* CLOSED CIRCUIT 160 185 200
MAGNETIC FLUX | |
(nWb/m) * Kk ekeKK
(*); OPEN CIRCUIT MAGNETIC FLUX = CLOSED
CIRCUIT MAGNETIC FLUX + LEAK
MAGNETIC FLUX.
(*): O.R.L
(***): TCC-130 (DOLBY REFERENCE LEVEL)
(MTT-150)
(“**): S.R.L TCC-120 (IEC REFERENCE LEVEL)
(MTT-212)
2. S.R.L Setting As for sets, DOLBY LEVEL is usually
standard, it will be as follows:
Recording condition is to add 1 kHz, 100 mV signals on
LINE INPUT.
Adjust REC LEVEL (REMOTE CONTROL UNIT) and
should be 300 mV at DOLBY test points L/T601, R/T602.
From this condition, input level is —-4 dB (4 dB down by
attenuator). It is the recording condition at OPERATION
RECORDING LEVEL. (O.R.L)
(Note) Depending on measurement items, playing standard
level changes a lot. Recording level of specified test
tape decides the standard level.
1
~~
2
~—
3
=
(C) Adjustment Flow Chart
TAPE SPEED Adjustment
AZIMUTH Adjustment
PLAY-BACK LEVEL Adjustment
MPxX Filter Adjustment
BIAS FREQUENCY Adjustment
BIAS OSC Coil
REC/PB FREQUENCY Response Adjust.
NORMAL Tape
CrO2 Tape (Check)
METAL Tape (Check)
REC/PB LEVEL Adjustment
26