Denon-PMA770-int-sm维修电路原理图.pdf

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1、. . . . . . . . . . . . . . . . . . . . . . . $ $ - Cur 1d3VlQ N01133NNO3 - . . . . . . . . . . . . . . . . . . . PJVt13V10 9NlUlM www.freeservicemanuals.infoFree World of Manuals RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS PMA-770 POWER AMPLIFIER SECTION Circuit Type: Rated Output Power: All stage direc

2、t DC servo circuit Both channel drive tt,($Lzt$Hz 100 W + 100 W (DIN, U.K. EUROPE. U.S.A.) 1 kHz (4 ohm Load) 150 W + 150 W (DIN, U.K., U.S.A.) 1 kHz (4 ohm Load) 50 W + 50 W (IEC) (Subject to change by temperature test) Total Harmonic Distortion: 0.008% (20 HZ - 20 kHz at -3 dB rated output 8 ohm L

3、oad) 0.02% (20 Hz - 20 kHz at rated output 8 ohm Load) (U.S.A.) lnlarmodulation Distortion: Below 7 kHz I 6 0 HZ : 114 0.002% (at amplitude output equlvalent to rated output) Output Band Width: 5 tiz - 100 kHz UHF THD 0.035%) Transmission Characteristicr: lnput Sensilivity: Input Impedance: Output I

4、mpedance: Output Terminals: EQUALIZER AMPLIFIER SECTION Equalizer Amplifier Output: lnput Sensitivityllnput Impedance: RlAA Deviation: , OVERALL CHARACTERISTICS SN Ratio (IHFA Network): Tone Control djustabli Range: Filtering Charxtaristicr Loudness Characteristics: AC OUTLET: (For U.S.A. and Canada

5、) POWER SOURCE: POWER CONSUMPTION: DIMENSIONS: WEIGHT: 1 Hz - 250 kHz + : : (at 1 W output) 150 mV 47 k ohm 0 08 ohm (1 kHz) Speaker: A and B Load 4 - 16 ohm A + B Load8- 16ohm HeadphonelStereo headphone Maximum Output: 10 V (at 47 k ohm Load) Rated Output: 150 mV Total harmonic wave distortion: bel

6、ow 0.002% (at 1 kHz. 8 V output) PHONO-1. 2 MM 2.5 mV 47 k ohm MC 125pV lWohm TUNER 150 mV 47 k ohm AUX. TAPE 150 mV 47 k ohm PHONO-l;2 MM within i0.2 dB (20 Hz - 100 kHz) MC within t0.2 dB (20 Hz - 100 kHz) PHONO-l:2 MM 90 dB (input terminals short-circuited lor 2.5 mV input) MC 73 dB (input termin

7、als short-circuited for 250 pV input) TUNER. TAPE. AUX: 110 dB (input terminals short-circuited) BASS 100 Hz i 8 dB TREBLE 10 kHz i 8 dB SUBSONIC 18 Hz, 6 dBloct Low frequency 100 Hz + 7 dB High frequency 10 kHz + 6 dB SWITCHED x 2, 100 W (Total) UNSWITCHED x 1. 250 W Germany and France AC 220 V. 50

8、 Hz; U.K. AC 240 V. 50 Hz; U.S.A. AC 120 V, 60 Hz; Hong Kong AC 200V. 50 Hz 270 W 1U.S.A.); 400 W (IEC); 290 W (Hong Kong); 800 W Maxlmum Output 434 mm (W) x 132 mm (HI x 407 mm (D) (including rubber feet, control knobs, and terminals) 12 kg Design and specifications are subject to change without pr

9、ior notice. NOTE: The following code correspond to the appropriate models. E2 lor Enrope EF for France, EK for U.K. 3 for U.S.A., E3 for Canada and E l for Hong Kong, Singapore. This Service Manual is prepared based on PMA-770 E2. SPECIFICATIONS PMA.750 POWER AMPLIFIER SECTION Circuit Type: Rated Ou

10、tput Power: Toul Harmonic Distortion: Intermodulation Distortion: Output Band Width: Tnnsmirrion Chancterirticr: lnput Sensitivity: lnput Impedance: Output lmpedance: Output Terminals: EQUALIZER AMPLIFIER SECTION Equalizer Amplifier Output lnput Senritivityllnput Impedance: RlAA Deviation: OVERALL C

11、HARACTERISTICS SN Ratio (IHFA Network): Tone Control Adjustable Range: Filtering Charxteristics: Loudness Characteristics: AC OUTLET: (For U.S.A. and Canada) POWER SOURCE: POWER CONSUMPTION: DIMENSIONS: WEIGHT: Design and specificatio All stage direct DC servo circuit Both channel drive , ( o L H z

12、80 W + 80 W (DIN. U.K., EUROPE. U.S.A.) 1 kHz (4 ohm Load) 100 W + 100 W (DIN, U.K., U.S.A.) 1 kHz (4 ohm Load) 50 W + 50 W (IEC) (Subiect to change by temperature test) 0.008% (20 Hz - 20 kHz at -3 dB rated outwt 8 ohm Load) 0.02% (20 Hz - 20 kHz at rated output 8 ohm Load) (U.S.A.) Below 7 kHz I 6

13、 0 Hz : 114 0.002% (at amplitude output equlvalent to rated output) 5 Hz - I00 kHz llHF TIiD 0.035%) 1 Hz - 250 kHz z : : (at 1 W output) 150 mV 47 k ohm 0.08 ohm (1 kHz) Speaker: A and 8 Load 4 - 16 ohm AtBLoad8-16ohm HeadphonelStereo headphone Maximum Output: 10 V (at 47 k ohm Load) Rated Output:

14、150 mV Total harmonic wave distortion: below 0.002% (at 1 kHz, 8 V output) PWONO MM 2.5 mV 47 kohm MC 125pV 100 ohm TUNER 150 mV 47 k ohm AUX, TAPE 150 mV 47 k ohm PWONO MM withln i0.2 dB (20 Hz - 100 kHz) MC withln fO 2 dB (20 Hz - 100 kHz) PHONO MM 88 dB (input terminals short-circuted for 2 5 mV

15、lnput) MC 72 dB (input termnals short-circuited for 250 pV Input) TUNER. TAPE. AUX: 110 dB llnput terminals short-crcuited) BASS 100 Hz i 8 dB THEBLE 10 ktiz i 8 dB SUBSONIC 18 Hz, 6 dBloct Low frequency 100 Hz + 7 dB 111gh frequency 10 kHz + 6dB SWITCHED x 2, 100 W (Total) UNSWITCHED x 1. 250 W Ger

16、many ar ran;e AC 220 V. 50 Hz; U.K. AC 240 V. 50 Hz; U S A. AC 120 V. 60 Hz; tiong Kong AC 200V. 50 Hz 230 W (US A,); 400 W IIECI; 200 W (Hong Kongl; 680 W Maximum Output 434 mm (W) x 132 mm (HI x 407 mm (D) (ncludng rubber feet. control knobs. and termnalsl 12 kg ns are subject to change without pr

17、ior notice. www.freeservicemanuals.infoFree World of Manuals RadioFans.CN 收音机爱 好者资料库 BLOCK D I A G R A M PMA-770 METHOD OF ADJUSTMENT Schematic View of Tone Power for ETC-453 (PMA-770). ETC-453J (PMA-750) I ETC-453.453J Tone :5:; ;I;SIIEET .C 5010755049 CAH r O N CASE d 1 5110994001 ( INST MANUAL !

18、ADDENDUM LlST I r I - Part NO. / I No, 1 I ? ; j i i ; : l y - - - : I I li HEADPHONE JACK UN ETC 045562 SPEAKER SWITCH UNIT ETC 045203 SPEAKER TERMINAL UNIT E l C 045204 I www.freeservicemanuals.infoFree World of Manuals EXPLODED VIEW OF PARTS LIST IPMA.750) hole I See anclendvm 11rl below for I l

19、e palls walh e$tcrlrk I.) on tho Re1 N o and the olhee parll not nnrludcd o n tf,oa llrt 2 Tho 1-tr er tveneved harcd an 7 ADDENDUM LlSl 1 BACKPANEL ETC.0452K2 25 SPEAKER SWITCH UNIT ETCIJ452K3 ETCO452M3 28 RECT . . CERAMIC CAP.0.0047uF 460 CROSS PAN SCRFW WI TH S WASIIFII 3x6 INPU 1 :-:. . . . x i

20、. 48 47304-032 TAPPING SCREW 17l4x18 IBLACKI 49. ! 4350052018 FLEXlRl F 91 lnFR 470 k ohm - 4 8 : 0 2 ? 0 2 ! 1 n l - .- PACKING ACCESSORIES 5040064001 CABINET SHEET- - 5030301 101 CUSHION 5010155036 CARTON CASE 51 109S4001 INST MANUAL I www.freeservicemanuals.infoFree World of Manuals www.freeservi

21、cemanuals.infoFree World of Manuals 1P-n 1 ETC-453 & ETC-453J TONE & 0. UNIT PARTS LIST Hef. Pert Name & Descriptions 1 1 Pert No. I Pert Name 6 0ostriptionr . - - - - -. - I VR001 VR003 VR005 VR007 VROl 1 VR012 R013 R014 R015 R016 R017 R018 R019 R020 RO2l R022 R03 1 R03 2 R035 R036 R065 R 066 R06 7

22、 R068 R 069 R070 R07 1 R072 R073 no74 R077 R078 RO 79 R080 R085 R086 R087 R088 R107 R108 R l l l R112 R115 R116 n i 2 i R122 R123 R124 R125 n i x R 127 R 128 n129 R130 R131 R 132 R133 R 134 R135 R136 , R137 n 138 R139 R140 11 14 1 R142 R143 R144 A145 R 146 R147 R148 R 149 R 150 R151 RESISTORS (not i

23、ncluded Carbon Film t5%, YIW Type) VARIABLE RESISTOR 55 k ohm M A I N VARIABLE RESISTOR 100 k ohm BALANCE VARIABLE RESISTOR 100 k ohm BASS VARIARLE RESISTOR 50 k ohm TREBLE SEMl FIXED RESISTOR 10 k ohm SEMl FIXED RESISTOR 10 k ohm 100 ohm 25% %W CAR0ON F I L M 100 ohm t5% %W CARBON F lLM 8.2 k ohrn

24、i2% %W CARBON F lLM 8.2 k ohm t2% %W CARBON F l L M 8.2 k ohm k2% %W CARBON F I L M 8.2 k ohrn t296 %W CARBON F I L M 390ohm t5%W CARBONFILM 390ohm tS%W CARBONFILM 390 ohm t5% %W CARBON FILM 390ohm t5% %W CARBONFILM 20 M ohm t 10% %W CARBON COMPOSIT 20 M ohm t 10% %W CARBON COMPOSIT 750 ohm t5% %W C

25、ARBON COMPOSIT 750 ohm 15% %W CARBON COMPOSIT 6.8 k ohm t5% 1 W METAL OXlDE F I L M 6.8 k ohm t5% 1W METAL OXlDE F I L M 100 ohm 92% %W CARBON F I L M l o o o h m t m x w CARBONFII-M l00ohm 12% %W CARBON F l L M 100 ohm t2% %W CARBON FILM 47 ohm t5% 1W METAL OXlDE F l L M 47 ohm t5% 1W METAL OXlDE F

26、 l L M 47 ohm t5% 1W METAL OXlDE F l L M 47 ohm t5% 1 W METAL OXlDE F l L M 470 ohm t5% %W CARBON F l L M 470 ohm t5% %W CARBON F l L M 1 k ohm 25% %W CARBON F l L M 1 k ohm ?5% %W CARBON FILM 2.7 k ohm ?5% 1W METAL OXlDE F l L M 2.7 k ohm t5% 1W METAL OXIDE F l L M 2.7 k o h m ?5% 1W METALOXIDE F l

27、 L M 2.7 k ohm 25% 1W METAL OXlDE FILL1 1 k ohm 12% %W CARBON F l L M 1 k ohm 12% %W CARBON F l L M 82 ohm t5% %W CARBON FILM 82 ohm 95% %W CARBON F l L M 1 k ohm t2% / . W CARBON FILM 1 k o h m ? % % W CARBONFILM 5.6 k ohm t5% 2W METAL OXlDE F l L M 5.6 k ohm t5% 2W METAL OXIDE F l L M 5.6 k ohm 25

28、% 2W METAL OXlDE F l L M 5.6 k ohm 25% 2W METAL OXlDE F l L M 1 k ohm t5% 1W METAL OXIDE F l L M 1 k ohm t5% 1W METAL OXlDE F l L M 1 k ohm 15% 1W METAL OXlDE F l L M 1 k ohm t5% 1W METAL OXlDE F l L M 27 k ohm t5% HW CARBON F l L M 27 k ohm t5% XW CARBON F l L M 120 ohm 22% %W CARBON F l L M 1 M o

29、h m t296 %W CARBON F l L M 120 ohm t2% YIW CARBON F l L M 120 ohm 92% %W CARBON F l L M 4.7 ohm t5% 1W METAL OXlDE F l L M 4.7 ohm t5% 1W METAL OXlDE F l L M 4.7 ohm t5% 1W METAL OXlDE F l L M 4.7 ohm 95% 1W METAL OXlDE F l L M 33 dhm 12% YIW CARBON F l L M 33 ohm 12% %W CARBON FILM 33 ohm t 2% %W C

30、AnOON FILM 33 ohm 2296 %W CARBON F1I.M 33 ohm 12% %W CARBON F l L M 33 ohm 92% %W CARBON F l L M 0.4710.47 ohm t l 0 % 3.15W WlRE WOUND 0.4710.47 ohm tlO% 3.15W WlRE WOUND 0.4710.47 ohm ?lo% 3.15W WlRE WOUND 0.4710.4 7 ohm t 10% 3.15W WIRE WOUND 33 ohm 12% %W CARBON F l L M 33 ohm 12% /.W CARBON F l

31、 L M 470ohm t5% 1W METAL OXlDE F l L M SEMICONDUCTORS NJM4550D INTEGRATED CIRCUIT NJM4560D INTEGRATED CIRCUIT HA12002 lNTEGRATED CIRCUIT N P A H ( L ) / ( H I FIELD EFFECT TRANSISTOR pPA68Hf L)/fH) FIELD EFFECT TRANSISTOR 2SC184 1 (F)/(E) TRANSISTOR 2SC1841 (F)l(E) TRANSISTOR 2SC184 1 f F)/f E 1 TRA

32、NSISTOR 2SC184 1 fF)/fE) T n ANSISTOR 2SA916f L ) TRANSISTOR 2SA916fL) TRANSISTOR 2SA916fL1 TRANSISTOR 2SA916(Ll TRANSISTOR 2SC194lfLl TRANSISTOR 2SC194 1 f L) TRANSIS7 OR 2SD667A(C1 TRANSISTOR 2SD667AfC) TRANSIST-OR 2SB647AfC1 TRANSISTOR 2SB647A(C) TRANSISTOR 2SC1815fBL) TRANSISTOR 2SC1815fBL) TRAN

33、SISTOR 2SC1213fDllfC) TRANSISTOR 2SC1213fD)/fC1 TR ANSISTOR 2SA673A ()llfC) 7 RANSIST OR 2SA673A(D1/(C) TRANSlSTOR 2SC2238fY )/fOI TRANSISTOR 2SC2238fY )/fO) TRANSISTOR 2SA968(Y )/fO) TRANSISTOR 2SA968(Yll(01 TRANSISTOR 2SC1815fY )/(GR) TRANSISTOR 2SA1015(Yl TRANSlSTOR 2SC1626fY 1 TRANSISTOR HV-23G(

34、YW) DIODE HV.23G(YW) DIODE KB.265 DlODE KR-265 I DlODE I S M 7 6 I DlODE 1 2 0 7 6 DIODE 1 S2076 DIODE IS2076 DIODE HZ-30 ClODE HZ-30 DIODE i IS2076 DIODE IS2076 DIODE -. - - - I . . lC00l 2630118001 IC002 2630118001 IC005 2630101004 TROOl 2750024033 TR002 T R O 3 TR004 Tn005 TR006 TR007 Tn008 Tn009

35、 TROlO TROll TR012 TR013 TR014 TR015 TROl6 Tfl025 Tn026 TR031 Tn032 i n 0 3 3 Tf3034 TR035 TI3036 TR037 TR038 TRO50 TROFrl THO65 DO01 DO02 DO3 004 DO5 i DO6 DO07 DO08 DO1 1 DO1 2 DO17 0018 2750024033 2730235020 2730235020 2730235020 2730235020 27101 10000 27101 10000 27101 10000 27101 10000 27302050

36、05 2730205005 2740060007 2740060007 3720053005 2720053005 2730193015 2730193015 27301 11063 27301 11063 2710040073 2 110040073 2730199027 2730199027 271 0104029 271 01 04029 27301 98044 271 0102005 27301 77007 2760171028 2760171028 2760216019 2760216019 2760049008 2 760049008 2760049008 2760049008 2

37、760224001 2760224001 2760049008 2760049008 DO19 0020 DO21 DO27 DO23 DO24 00 25 DO26 DO27 DO28 DO29 DO30 0031 0032 0033 0034 11035 DO36 0037 1303R 0039 0040 0 0 4 1 1D042 0043 11044 DO4 5 DO46 0 0 4 7 DO49 . 2600490081 IS2076 DIODE Part Nama & Desuiptions 470 ohm t5% 1W METAL OXlDE FILM 4.7 ohm *5% 1

38、W METAL OXIDE FILM 4.7 ohm t5% 1W METAL OXlDE F l L M 4.7 ohm 25% 1W M E T A L OXIDE FILM 4.7 ohm 15% 1W M E T A L OXIDE FILM 27 ohm i 5 % 1W M E T A L OXIDE FILM 27 ohm t6% 1W METAL OXIDE FILM 1 k ohm t5% 1W M E T A L OXlDE FlLM 51 ohm t2% XW CARBON F l L M 51 ohm t2% %W CARBON FlLM 10 M ohm t 10%

39、%W CARBON COMPOSIT 10 M ohm i1096 %W CARBON COMPOSIT 27 k ohm i5% XW CARBON FILM 2 7 k o h m t 5 % X W CARBONFILM 390 ohm t5% XW CARBON FlLM 820 ohm t5% 1W METAL OXlDE FILM 33 ohm t5% 1W METAL OXlDE FlLM 510 k ohm t5% YIW CARBON F l L M (STANDING) 510 k ohm 5 % XW CARBON FILM (STANDING) u u u I. 1 R

40、ot. No. R152 R153 R154 A1 55 R l 5 6 R157 R158 R162 R163 R164 R 165 R166 R167 R168 R171 R176 R 190 R195 R196 2760049008 2760049008 2760049008 , 2760(i49008 276004 9008 2 76004 9008 2760049008 2760049008 2760049008 3760049008 2760049008 2760049008 2760049008 2760049008 2760049008 2760049008 276004900

41、8 2760049008 7 7G004W08 1760221 004 2760221004 2760049008 2760049008 7760049008 2760049008 2 76012 1004 2760221004 2 76004 9008 2760221004 Part Name 81 Ontriptiom 220pF 10V ELECTROLYTIC 220pF 16V ELECTROLYTIC 220pF 16V ELECTROLYTIC 33pF 16V ELECTROLYTIC 33pF 16V ELECTROLYTIC 33pF 16V ELECTROLYTIC 33

42、pF 16V ELECTROLYTIC 560pF t5% 50V PLASTIC FILM r 560pF t59650VPLASTlCFILM 560pF % O V P L A S T I C F I L M 56OpF t5% 50V PLASTIC FILM lOpF tO.5pF SOVMICAFILM lOpF t0.5pF SOV MICA F I LM O.M)G&rF 25% 50V PLASTIC F I L M 0.0068pF t5% 50V PLASTIC FILM 0.0047pF t5% 50V PLASTIC F l L M 0.0047pF tS%!iOVP

43、CASTlCFlLM 0.0047pF t5% SOV PLASTIC F l L M 0.0047pF tS% 50V PLASTIC F I L M 0.0068pF t59650VPLASTlCFlLM 0.006&rF *S%50VPLASTlCFILM 2.2pF 63V ELECTROLYTIC 4.7pF 63V ELECTROLYTIC 4.7pF 63V ELECTROLYTIC O.OlpF 15% 5OV PLASTIC FILM 0.01pF 95% 50V PLASTIC F l L M 4.7pF 63V ELECTROLYTIC 4.7pF 63V ELECTRO

44、LYTIC 2.2pF 63V ELECTROLYTIC 47pF *10%5OOV MICAFILM 47pF t 10% 500V MICA FILM 1pF 500V ELECTROLYTIC 2.2pF S00V ELECTROLYTIC 330pF 6.3V ELECTROLYTIC 22pF t10% 10V ELECTROLYTIC 47pF t10%500V MICAFILM 47pF t10% 500V MICA FILM 47pF 25% 50V MICA FlLM 47pF t5% SOV MlCA F l L M 68pF t5% 50V MlCA FILM 68pF

45、t5% 50V MlCA F l L M 0.1pF tZC% 25V CERAMlC O.OlpF t80,-20% 50V CERAMIC 0 . 0 1 F t80,-20$6 50V CERAMIC 0.01pF t80,-20% 50V CERAMIC 0.OlpF t80,-20% 50V CERAMIC 1 4700pF t100,-0% 500V CERAMIC 4700pF t100,-0% 500V CERAMIC Ref. No. C048 C051 C052 C053 C054 C055 C056 C057 C058 C059 C060 C061 C062 C063 C

46、064 C065 C066 C067 C068 C069 C070 C071 C073 C074 C075 C076 C077 C078 C079 CO81 C082 C083 C084 C085 C087 C089 C090 CO9l C092 C093 C094 C099 C1Ol C102 C 103 C1 W C105 C106 Part No. 2440037026 2440013024 2440013024 2440013024 2440013024 2440022028 2440022028 2440041025 2412315051 2412315051 2420203003

47、2420203003 2410219007 2410219007 2410175002 2440040026 2440023027 2412031018 2412031018 IS2076 DIODE IS2076 DIODE 1 S20 76 DIODE IS2076 4 DIODE 1 S20 76 DIODE 1 S 20 76 DIODE IS2076 DIODE IS2076 DIODE 1 S2076 DIODE IS2076 DIODE I S M 7 6 DIODE IS2076 DIODE IS2076 DIODE IS2076 DIODE 1 S2076 DIODE IS2

48、076 D I0 D E IS2076 DIODE lS2076 DIODE 157076 DIOI1F t I Z.3G DIODE HZ-36 DIODE IS2076 DIODE IS2076 DIO1)E IS2076 DIODE 1 S2076 DIODE H 2-36 DIODE 142-36 DIODE 1 S20 76 DIODE HZ-36 DIODE Pnt No. 2544019005 2544019005 2544019005 2544016008 2544016008 2544016008 2544016008 2554139001 2554139001 255413

49、9001 2554139001 2521010001 2521010001 2554 165004 2554165004 2554161008 2554161008 2554161008 2554161008 2554165004 2554165004 2544059078 2544059036 2544059036 2554169000 2554169000 2544059036 2544059038 2544059078 2521079039 2521079039 2544044009 2544066003 2544005006 2549015004 2521079039 2521079039 2521026008 2521026008 2521030007 2521030007 2539015