Denon DN-730R User Manual

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DEMON
-I ! II II , f r'\
SERVICE MANUAL^
MODEL
DN-730R
STEREO CASSETTE TAPE DECK
in
— • c tja .
-
— TABLE OF CONTENTS —
SPECIFICATIONS........................................................................................................................................................3
BLOCK DIAGRAM........................................................................................................................................................4
LEVEL DIAGRAM.........................................................................................................................................................5
DISASSEMBLY INSTRUCTIONS............................................................................................................................ 6~7
ADJUSTING AND CHECKING THE MECHANISM SECTION
....................................................................................
8
ADJUSTING THE ELECTRICAL SECTIONS........................................................................................................ 9~10
NOTE FOR PARTS LIST............................................................................................................................................10
PARTS LIST OF 3U-2584 AUDIO METER UNIT................................................................................................. 11-13
PARTS LIST OF 3U-2063 POWER SUPPLY UNIT...................................................................................................13
PARTS LIST OF EXPLODED VIEW.......................................................................................................................... 14
EXPLODED VIEW...................................................................................................................................................... 15
EXPLODED VIEW OF CASSETTE MECHANISM.....................................................................................................16
PARTS LIST OF CASSETTE MECHANISM EXPLODED VIEW...............................................................................17
PARTS LIST OF PACKING & ACCESSORIES......................................................................................................... 17
PACKING & ACCESSORIES.....................................................................................................................................17
P.W. BOARD OF 3U-2584 AUDIO/METER UNIT......................................................................................................18
P.W. BOARD OF 3U-2063 POWER SUPPLY UNIT..................................................................................................19
SEMICONDUCTORS............................................................................................................................................20-21
BUNDLE DIAGRAM...................................................................................................................................................21
WIRING DIAGRAM..................................................................................................................................................... 22
SCHEMATIC DIAGRAM............................................................................................................................................. 23
NIPPON COLUMBIA CO.. LTD.
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Summary of Contents

Page 1 - NIPPON COLUMBIA CO.. LTD

DEMON-I ! II II , f r'\SERVICE MANUAL^MODEL DN-730RSTEREO CASSETTE TAPE DECKin— • c tja .-— TABLE OF CONTENTS —SPECIFICATIONS...

Page 2 - IÛN-730RI

I LJI\]- /LáUH IEQUIPMENT FOR ADJUSTING AND CHECKINGIIMEASURING TAPE. TYPE NAME, BRAND AND USESTYPE NAME BRANDUSESTW-2111A/2121A SONYChecking the

Page 3 - X 134 (H) X 275 (D) mm

□N-730RPARTS LIST OF GU-2778 AUDIO/METER UNIT < Ref. No.1 Part No.Part NameRemarksSEMICONDUCTORS GROUPIC301262 0590 001TCUPC1330HAiC3o;:1 262 08&am

Page 4 - “"-CE=i

IDN-‘730R IRef. No. Part No.r-7 - - 'fáSR25:241-2315 912: R253247 0009 aS5i R256247 0005 905Í R257241 ТЮ14 9071 R260'247 001СГ 961I R2612

Page 5 - RECORDING SYSTEM

iDN-yaORRe1. No.XT501FL601SW610, 612,614,616,620, 622,624,626,628, 630,632. 634,636, 638,Part No.399 0107 007 393 8002 009 212 5604 910Part NameRe

Page 6 - I Head wire — CN301

l[DN--y30RIPARTS LIST OF EXPLODED VIEWRef. No. Part No.Part NameRemarks• 1411 1000 652 CHASSISEurope, U.K.411 1000 681CHASSISU.S.A., Canada411.1000 6

Page 7 - Meter Circuit Board

IDN-730RIEXPLODED VIEWao4).._WARNING:Parts marked with this symbol A EM have critical characteristics. Use ONLY replacement parts recommended

Page 8 - Capstan shaft

IUN-‘/3aRIEXPLODED VIEW OF CASSETTE MECHANISM16

Page 9 - DN-730RI

I DN-73DRIPARTS LIST OF CASSETTE MECHANISM EXPLODED VIEWPARTS LIST OF PACKING & ACCESSORIESPACKING & ACCESSORIESRef. No.2345678 10 11 12131415

Page 10 - AND CHECKING

lUN- 73GHIDì P.W. BOARD OF GU-2778 AUDIO/METER UNIT18

Page 11

IDN-730RIP.W. BOARD OF 3U-2603 POWER SUPPLY UNITRemarks1. The following table shows the power circuit parts used for the 3U-2603 board by area.2. Pa

Page 13

IDN-TSORISEMICONDUCTORS• 1CM15218AP|.iPC4570CTL45583 GND 2 INPUT 1 OUTPUT• NJM79083 INPUT 2 GND 1 OUTPUT• NJM7808• NJM7806/LtPC1330HA20

Page 14 - PARTS LIST OF EXPLODED VIEW

с^ 2Q P,СЛ СЛ J3 СЛ w Mо5’Q.(D(ЛtX X X X Irsi N fSI N1 NJСЛ СЛ (Л СЛ СЛ<D 0> 0> 05Ш 9 ro n ОNJ COX X X X N1 N1 N rsl СЛ СЛ

Page 15 - EXPLODED VIEW

IDN-yaORIWIRING DIAGRAMLINE INLINE OUTJK301GU-2778-3 HEADPHONE P.W.BJK302 PHONES JACKGU-2778-1 AUDIO P.W.BO c c i SR a: u o (0 59 £ _/ o: □

Page 16 - IUN-‘/3aRI

IDN-yaORISCHEMATIC DIAGRAMNote: • Resistance shall bp 1/4 W unless othen/vise specified and the unit is ohm.• The unit of capacitor is pF, P is pF un

Page 18

DENON

Page 19 - IDN-730RI

ICDN-ySORIi'SPECIFICATICMSISTypeHeadsMotorsTape Speed Variable (PLAY)Fast Forward, Rewind Time Flecording Bias Overall S/N Ratio (at 3% THD Overa

Page 20 - SEMICONDUCTORS

JK3010/2)VRiOlìNPJTVOL'JML'DOLBY NR SYSTEM iCLINE IN LCM - ^-----------I.INF: in RenREC/PB MEAD“"-CE=iI 00i r”OO7ÑD>O30>I□zQ]□

Page 21 - Г О -, —

1CDN-730RI-LEVEL DIAGRAMPLAYBACK SYSTEMTCC-130 IDOLBY B-Pi^PE 400 Hz 200 nwb/mRECORDING SYSTEMINPUT FREQUENCY 400 Hz-40-50-60-70 -REC PLAY FREQUENC

Page 22 - WIRING DIAGRAM

IDN-730RIj DISASSEMBLY INSTRUCTIONS j1. How to Remove the Front Panel(1i Remove the four screws, (4 X 12. CBTS-P) in the side of the top cover. Mov

Page 23 - SCHEMATIC DIAGRAM

tDN-730RIMeter Circuit Board5. How to Remove the Cassette Door(1 ) Remove the MINIthA'I'JIPER'retaining screw J x 8 CBTS(P)- B and take

Page 24 - □N-730RI

IE)N-730niADJUSTING AND CHECKING THE MECHANISM SECTION1. Replacing-the Pinch Roller (36)Before replacing the pjnch roller, clean the tape co

Page 25

DN-730RI4. Adjusting the Playback and Recording SectionProcedure ItemUsage tape — input conditionResponse ModeAdjustmentiocationAdjustment procedure1

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