Denon DN-730R User Manual Page 1

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

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

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

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

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

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

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

IUN-‘/3aRIEXPLODED VIEW OF CASSETTE MECHANISM16

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

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

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

IÛN-730RI

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

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

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: □

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

□N-730RI

DENON

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

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

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

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

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

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

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