McIntosh-MAC4300V-rec-sm维修电路原理图.pdf

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1、MAC 4300V AM/FM RECEIVER CONTENTS Section 7 - Control Logic. . . Remote Receiver Switching Logic -f E trI RFl -Jt t-0 t-.I rtrt lr r VVVVV l ( t v/ re1 l! l l! ! !l 03 0 IrI t ooooooo , l g eg lllclnloth MAc43oov REcEvEF Performance Specifications .2-3 Mechanical Views .3-4 Notes .5 Block Diagrams -

2、 AM/FM Tuner Section. 5-6 Pre-amp/Ampl if ier Section Section Locations .7 Section 1- lnterconnection Diagram . B-10 AC Line lnout Front Panel and Trim Parts List . 11 lnstallation Hardware Parts List . 11 Section 2 - Signal lnput. . 11 - 13 lnput Switching Phono Pre-amp Tape Switching Section 3 - P

3、reamplifier. .14-17 Volume Equalizer Loud ness/Balance Preamp Muting Section 4 - PowerAmplifier .18-20 Driver Power Outout Power Guard Section 5 - AM Tuner. .21 -23 Section 6 - FM Tuner .24-27 Front End Multiplex Program lnput Display Frequency Display Section 11 - Tuning Voltage Regulator.39-41 Sig

4、nal Display Status lndicators lR Sensor Section 12 - AM/FM Tuning Control .42-44 Section 13 - Output Processing and PowerSupply .45-47 Speaker lmpedance Switching Speaker Switching Low Voltage Regulators Section 14 - Back-up Power Supply . 48 Power Relay Alignment Procedure .49 Repacking lnstruction

5、s. .S0 28-33 31-33Section 8 - Keyboards Program Tuner Function Section 9 - Section 10 I nput 34-35 36-38 llltlnfusli s e rv i c e M a n u a I RadioFans.CN 收音机爱 好者资料库 Performance Specif ications AMPLIFIER SECTION FM SECTION STEREO POWER OUTPUT USABLE SENSITIVITY 100 watts into I ot- 4 ohm loads is th

6、e l3dBF which is 1.22uV across 75 ohms minimum sine wave continuous average power output per channel, from 20 to 50 dB SUIETING SENSITIVITY 2OrO0OHz, with both channels operating. Mono 17dB which is 2.0uV across 75 onms POWER BANDWIDTH Stereo 37dBF which is 20uV across 75 20 to 20,000H2 ohms TOTAL H

7、ARMONIC DISTORTION SIGNAL TO NOISE RATIO O.O2% maximum at any power level from Mono 75dB 25O mi.l.liwatts to rated power per channel , Stereo 70dB 20 lo 20,0OOHz, both channels openating. FRESUENCY RESPONSE iNTERMODULATION DISTORTION Mono *0, -1.OdB from 20 Io 15kHz O.O2% maximum at any power level

8、from Stereo +0, -1 .gdB f rom 20 to l SkHz 25O milliwatts to rated power per channel, for any combination of frequencies from 20 HARMoNIC DISTORTION Io 2O,000H2, with both channels operating. Mono O.Og% at 100H2 O.O8% at lk FREOUENCY RESPONSE O,12% at 1Ok +0, -0.5d8 from 20 to 20,0001-lz at rated St

9、ereo O.OB% at 100H2 power. 0.08% at 1k O.120 at 10k INPUT SENSITIViTY phono z.smv produces rated output INTERMODULATION DISTORTION Tape, Aux 2S0mV produces rated output Mono oo8o Power- Amp 1.5V produces rated output Ster-eo o120/o SIGNAL TO NOISE RATIO, A-WEIGHTED CAPTURE RATIO Power Amp 1OOrJB bel

10、ow rated output 15dB Tape, Aux 90dB below rated output phono 8Odt with 10mV input ALTERNATE CHANNEL SELECTIVITY 55dB MAXIMUM INPUT SIGNAL Phono 90mV SPURIOUS RESPONSE High level 9V loodB INPUT IMPEDANCE IMAGE RESPONSE Phono 47k ohms, 4TpF SodB Tape, Aux 30k ohms power Amp 22k or,m STEREO SEPARATION

11、45dB at 100H2 DAMpING FACTOR 50dB at l k creater than 40 35dB at 1ok TAPE OUTPUT SCA REJECTION Phono 250mV with rated input 65dB Tape 250mV with rated input Tuner O.BV at 1O modulation (FM) PROGRAM EOUALIZER t12dB at 30, .150, 500, 1500 and 1 0,000H2 2 RadioFans.CN 收音机爱 好者资料库 AM SECTION SENSITIVITY

12、35uV (External Antenna) SIGNAL TO NOISE RATIO 50dB at 30% modulation 6OdB at lOOo modulation HARMONIC DISTORTION O.5% maximum at 3O% modulation, O.2% typical FRESUENCY RESPONSE *O, -6d8, 2OHz Io 4,00OHz ADJACENT CHANNEL SELECTIVITY 40dB minimum, IHF IMAGE REJECTION 65dB minimum IF REJECTION 65dB min

13、imum GENERAL INFORMATION SEMICONDUCTOR COMPLEMENT 118 Silicon Diodes 7 Varactor Diodes 41 Light Emitting Diodes 4 Seven Segment LED Display 96 Bipolar Transistors 45 Integrated Circuits AC POWER OUTLETS 4 Black, switched, l Red, unswitched, 1000 watts, total POWER REOUIREMENTS 12O volts, 5O/6OHz, 60

14、 to 480 watts WEIGHT 34.5 pounds (15.6k9) net, 48.5 pounds (22kg) in shipping carton lL A -l cauTtoN,o*r, vi I v ?fi,f!.,*.lln vl Iv SPEAKEBS 3 CLCB 6lllllllll lffi SPEAKEBS 2 CLCR llllllll ffi SPEKEAS cLca ll qplllllllg) ffi lllrlnfosh MAc43oov BEcETvEB .r lr .v v VCFfrAPE OUT, t roF , VIOEO SELECT

15、OR * Lo o8 * *, ro oR - # L F # I loLtrf*lol IIHH l- co oOo Fig. 1 Rear view RadioFans.CN 收音机爱 好者资料库 Mechanical Views 1431s (36.5 cm) Fig. 2 Top view 18-e/ro (47.1 cm) 6-i/r o (15.4 cm) I I I 5-1lt (13.3 cm) - : : : : - : : - - : - : -f !*l o o o o o o o o o E l.l 3 tt 6 : !i il t8 d 9r : lo! v V o

16、: l fllrlnlosh urcsoov nEcervrn *.1,.* E iffi Fig. 3 Front view RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 SECTION 1 PARTS LIST Symbol Part No. No. CAPACITORS c1,c2 061276 LIGHTING DEVICES DS1,D52 058101 DS3 058078 FUSES Fl

17、 089007 178122 RESISTORS Rl 134427 Descriptlon CD, .0047uF, 400V, UL/CSA INC, 12V, 150m4, Festoon LED, Red, SLP144B Fuse, SB, 54, 125V, MDL-s Fuseholder POT, Tuning 47K tsv -r5v Rr5 Rt7 t5v -t5v t5v -t5v c2 THERMISTORS RTf 144151 Thermister, 5 ohm SWITCHES Sl,S2 153017 Thermal Switch RAI,SFORMERS T1

18、 IIONT PANEL f,AR15 LIST Synrbol No. 159200 Power Transformer FLAT.vv oroo.gfl ANOOE DS3 AND TRIM Part Description No. 1O4O17 Felt Washer, Knob 046A12 Glass, Display 046826 Front Panel 018228 Handle, Front Panel O9O2O7 Knob, Balance 090218 Knob, Loudness O9O221 Knob, Equalizer (5) 100119 Machine Scr

19、ew, #1O x 7/9, Phtlips (For wood Sides) 01?246 Pushbotton, Black 01?268 Pushbutton, Red 046809 Tuning Knob 030196 Wood Side, Left, Secure W/100119 Screws 030195 Wood Side, Right Secure W/10O119 Screws Jt2-to ov T2 CONROL lOpF Rt2 -lzv z Rt3 42V 22tA Rt4 TAPE 2 lliPur lO, F Ril 220X INfiI AI,I.AI ON

20、HARDTARE PltI t.t5 liynrlrol Part Description ,)e-5 No. No. 1701?4 Cable, 7 Pin Din I 70148 FM Dioole Antenna 046823 Hardware Package 017218 Plastic Feet, Secure W/1O0159 Screws 101016 Screw, #1O x 1-1/4, Slotted (To secure unit to a 1/2 shelf) 101017 Screw, #1O x 1-1/2, Slotted (To secure unit to a

21、 3/4 shelf) 100159 Screw, #10 x 3/4, Phillips (For Plastc Feet) Jr2-6 104033 Washer, #10, Flat (For use with 101016 or 101017 Screw) r2+t CONfROL T t-)2 l- -rv 22il Signal lnput R2 l.Rl6 2-2 11 RadioFans.CN 收音机爱 好者资料库 Signal lnput c0 swrTcH PC BOARD O468t4 INPUT SWITCHING TUNER swTcH R34 22M R35 roo

22、 R36 too TUNER CONTROL L Jt-t4 R J t-r5 r,il-6 RzZ 2ZOK ilo 4:l )JF R23 22il roNlToR L J2-I R 2-4 L 2.2 R J2-3 t2-4 |5v i ,5y#urz-z i* | -rsvffiJrz-l i I lOr F Ril 220H- r2 CONTROLr-r I!2 -tzv izy T2-,t f t-+2 Rl4 TAPE I OUTPUT -t5v TAPE 2 I NPUT ., NJ8* -. ov.ov I I -Rll TROL -t2v ;2i 11 12 TAPE 2

23、OUTPUT RadioFans.CN 收音机爱 好者资料库 L Jr-t R Jr-r L IJl- R IJl-0 L JI.I R ,rl.t L J8T Rlt.l INPUT SWITCHING PCB 046814 SECTION 2 PARTS LIST Symbol Part Descriptlon No. No. DIODES Df-010 O7OO47 SIG,75V, 150mA, 1N4148 Dl1 070003 Ge, SIG, 45V, 10m4, 1N541 Dl2-D15 070047 SIG, 75V, 150m4, 1N4148 TNTEGRATED CI

24、RCUITS ICI 133094 Dual Operational Amp, NE5532N TRATSISIORS o1-017 132193 N, JFET, 2N4392 13 RadioFans.CN 收音机爱 好者资料库 Preamplfier R5 2.2R PC BOARD 046918 LOUDNESS PC BOARD 046918 EOUALI ZER ner Rr8 470K 6ox r.o!3ffil lfiffilncfnssnre GND i,J2-3 MONO swtfcH c4 470 J4 HEADPHONES R9 4.714 Rt9 470K R43 6

25、80 R38 680 R40 t00K c25 lO/F NP ,? -5 2- J2-t la lct VOLUiE CONTROL t4t35863tO2 15 RadioFans.CN 收音机爱 好者资料库 PC BOARD 0469t8 EOUALI ZER lGll-lncr R54 oox R57 R22 470K C4O .Zz PREAMP otf R PRE OUT - PREAMP K our R6 rooK 6x I nzc |IupNE-Fl OUTPUT MUTE EIfEl nssl-Elnsolil nco R4A 6AO l.sx-Iilnsr aso C4t

26、t22 R67 4,7M ct7 .033 6EO R43 680 R38 680 c50 roo - r5v R23 K5 roox 4 -t5v R5S c44 R69 470 R62 tooK c t4 15 cl6 .o33 J2- 4 16 RadioFans.CN 收音机爱 好者资料库 SECTION 3 PARTS LIST Symbol No. DIODES D1 D2 INTEGRATED IC1 tc2 IC3-IC6 tc7 TRAT.ISISTORS 81 02, 05 03, 04 o6 07, gB RESISTORS R24, R35 R36, R4l R46,

27、R51 R56 MISCELLANEOIJS J4 117340 Headphone Jack IC1 Part Description No. 070085 zN, 6.2V, 5%, 500mw, 1N52348 O70O47 SIG, 75V, 150m4, 1N4148 CIRCUITS 133132 CMOS, Volume Control, TC9153P 133094 DuaI Operational Amp, NE5532N 133028 Dual Hi-Speed Operational Amp, MC4558CP1 133094 Dual Operational Amp,

28、NE5532N 132193 N, JFET, 2N4392 132223 PNP, MPS4126 132223 NPN, MPS4124 132223 NPN, MPS4124 t32222 N, FET, J108 134397 POT, Balance/Loudness 134316 POT, 100K ohm/100K ohm, Equalizer 134316 POT, 1OOK ohm/1OOK ohm, Equalizer 13431 6 POT, 100K ohm/100K ohm, Equalizer Preamplifier LOUDNESS PCB 046918 A f

29、fi r50 500 t500 EQUALIZER PCB 046918 B o2-o6 17 RadioFans.CN 收音机爱 好者资料库 Power Amplifier SECTION 4 PARS LIST Symbol Part No. No. DIODES D,I D2 D3-D8 D9, Dl 0 LIGHT DEPENDENT RESISTORS LDRI 144179 LDR. VTLsC9 Description 070085 zN, 6,2V, 5%, 500mw, 1N52348 070098 SIG, 175V, 500mW, FDH400 O7OO47 SIG, 7

30、5V, 150mA, 1N4148 070131 RECT, 400V,tA, 1N4004 ffi l*ru- f l J. 82O,821 ANODE ,-4,: / LDRl Q1 ,83,85,Q7 e9-o11,815,816 TRANSISTORS 01,83 132223 a2 132236 04,06 132235 05 132223 o7,89 132224 oB 132235 o10 132223 01 1 132224 412 132233 o13 132236 814 132234 o15 132223 016 132224 ot 7 132231 418 t32232

31、 o19 132233 o20 132189 o21 132188 r YII ./uu 82,84,86 88,81 3 NPN, MPS4124 PNP,254970-BL NPN, 2SC2240-8L NPN, MPS41 24 PNP, MPS4126 NPN, 25C2240-BL NPN, MP54124 PNP, MPS4126 NPN,2SC3423 PNP,2S4970-BL PNP, 2541360 NPN, MPS4124 PNP, MPS4126 NPN, 25C32988-0 PNP,2S413068-0 NPN, 2SC3423 PNP NPN POWER AMP

32、LIFIER PCB 046802 APCB 046802 B 18 81 2,81 4,819 RadioFans.CN 收音机爱 好者资料库 *ffio PC BOARD 046802 A POWER AMPLIFIER RI 560 lct tonF R3 4.7K ! c? 287 .* orrEnrro, ? Q4 AMP 3,3K _L cs -6v S Rle CURRE NI souRcE tl- cs _5?v 1.,. ,I-4R ,l-toL PC BOARD 046802 B f* AD.,UST gIAS TO 7- TOmVDC AT NORMAL IDLE HEA

33、T SINK TEHPE RATURE 19 20 RadioFans.CN 收音机爱 好者资料库 AM Tuner + BOARD 0468tO TUNER J5-t2 rv R-21 czt .2JtF R25 tooK 15 12 13 ll 14 t6 17 lA 19 ?O 47O tlF IF INJECTIOI il_ .g:l I T4 R30 roo cil ,o47 ct4 .o47 Rr9 roo Rt7 4.7K 2122 RadioFans.CN 收音机爱 好者资料库 AM Tuner ,m, D1-D5 AM TUNER PORTION OF PCB 046811

34、SECTION 5 PARTS LIST Symbol Part No. No. CAPACITORS c8, c19 060027 cz:t 060027 DIODES Dl,D3 O7OO47 D2,D4 O7O125 D5 070125 FILTERS FNl 180035 TRAI.ISISTORS o1 132223 a2 132t93 03 132220 84,06 132223 05 t32224 TRANSFORMERS T1 T2 T3 T4 T5 Description Trimmer, 2-1OpF rimmer, 2-1OpF SIG,75V,150m4,1N4148

35、vAc, AM, SVC333 vAc, AM, SVC333 Filter, CER, 455kHz ffi Q1 ,84-86 ffi a2 ffi INTEGRATED CIRCUITS ICl 133105 Dual Hi-Speed Operational MC3458Pl ICz 133145 AM Tuner. MC13041P Amp rc1 NPN, MPS4124 N, JFET, 2N4392 P, FET, J176 NPN, MPS4124 PNP, MPS4126 162115 AM Oscillator 162113 AM-IF Matching 1621l? A

36、M-RF (Primary) 162116 AM-RF (Secondary) 162113 AM-IF Matchlno (Only Seclion 5 Parts Symbol Numbred) AM/FM TUNER PCB 046811 rc2 o3 23 RadioFans.CN 收音机爱 好者资料库 FM Tuner (Only Secton 6 Parts Symbol Numbered) FM TUNER PORTION OF PCB 046811 mm.- BEY -fD E E oooooooooooooo IC3,IC5 fi l;l l-l .r g SECTION 6

37、 PARTS LIST Symbol No. DIODES Dl JD2 D3 D4 D5-D7 D8 D9, D1 3 FILTERS FNl , FN2 FN3, FN4 TNTEGRATED IC1 rcz IC3 IC4 ILJ TRAllsISTORS 01 132205 Q2,83 132223 04 132181 05 132224 TRASFORMERS 162114 162103 162102 N, MOSFET Dual NPN, MC4i24 NPN, MPSHt0 PNP, MC4126 FM Mixer FM Discriminator FM Discriminato

38、r Gate, MFE521 (Secondary ) ( Primary ) Part Description No. 070003 Ge, SIG, 45V, 10m4, 1N541 o7o122 VAC, Matched, Selected SVC21i O7OO47 SIG, 75V, 150m4, 1N4148 O7O122 VAC Matched Selected SVC21 1 070130 zN, 8,2V, 5%, 500mW, 1N5237 O7OO47 SIG, 75V, 150m4, 1N4148 18OO24 Filter, CER, 10.64-10.76MH2,

39、Color Coded, SFE10.7 180028 Filter, LC, Low Pass, Multiplex CIRCUITS 133129 RF Mixer, IF, LA1l 70 133056 MPX-PLL Demodulator, TCA4500A 133028 DuaI Hi-Speed Openational Amp, M4558CP1 133110 FM-IF System, L41235 133131 Operational Amp, MC34081P Q1 T,I f2 T3 J Fll P-;,. l-.a f*l-;- ffiQl- F-l ttlt .El

40、7 rfi3/r+qgr+ I - lALiAr+ HHHHWt-Hffio Y -t-ol sP2 AM/FM TUNER PCB 046811 ANODE HNffi catttoDE D3, D5-7 :#.*, l , qo r-r ffio Hocg t-:*t-re H-f 0*m Hus$oH HfrH AA G.-,- oHeH-.- I 2 24 Q4 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱

41、 好者资料库 Control Logic CONTROL LOGIC PORTION OF PCB 046827 (Only Section 7 Parts Symbol Numbered) POWER SUPPLY/LOGC PCB 046827 PC BOARD 046806 A PROGRAM KEYEOARD PROGRAM KEYBOARD PCB 046806 A 31 RadioFans.CN 收音机爱 好者资料库 SECTION 7 PARTS LTST Symbol Part Description No. No. DIODES Dl-Dl4 07OO47 SIG, 75V,

42、 150m4, 1N4148 INTEGRATED CIRCUITS 133053 CMOS, Dual Type-D MC1 401 3AL 133073 CMOS, Quad 2-Input MC1 407r B rc3 IL4 la rc6 IC7,IC8 IC9 133076 CMOS, Suad 2-Input AND Gate, MCl 4081 B 133053 CMOS, Dual Type-D F-F, MCl 401 3AL 133143 6-Channel Switch, TCgl35P 133136 Ouad 2-Input Exclusive OR Gate, HEF

43、40708PN 133063 CMOS, Suad 2-Input NAND Gate, MC140118 133053 CMOS, Dual Type-D F-F, MC1401 3AL ICs,IC1 2,rC13 J6-7,J5-7J6-8 ,i5-a J6-9 TRAI.ISISTORS 01 132090 G2,84 132056 CMOS, Quad 2-Input AND Gate MC1 4081 B OMOS, Remote Control Receiver TC9150P 6-Input Strobed DrIver, LBl 760 Quad Cyclic Swltch,

44、 TCg130P NPN, DAR, Selected MPSA14 PNP, 2N5087 IC10 ICl 1 tcl2 IC1 3 1 33076 1 331 33 1 331 37 133142 83,85 132223 06-08 132056 09 132090 81 0, 8t 1 1 32056 412 132223 013,014 132056 o15 132223 016-018 132224 019,O20 132223 NPN, MPS4124 PNP, 2N5087 NPN, DAR, Selected MPSA14 PNP, 2N5087 NPN, MPS4124

45、PNP, 2M5087 NPN, MPS4124 PNP, MPS4t26 NPN, MPS4.1 24 ffi 81-Q20 rc1 tc2 F-F OR Gate, IC1 -IC4, rc6-rc10 J6-5 J5-3 PC BOARD 046806 B TUNER KEYBOARD PC BOARD 046808 FUNCTION KEYEOARD J6-4J5-4J6-5 IC11 J6-tO .r5-tO J6-il J5-lt 7-tz J6-6 J5-6 Keyboards TUNER KEYBOARD PCB 046806 B SECTION 8 PARTS LIST Sy

46、mboI No. SWITCHES s1 -s28 Part Description No. 150052 Pushbutton Momentary 32 FUNCTION KEYBOARD PCB 046808 33 RadioFans.CN 收音机爱 好者资料库 Power Display U I -t t- I 2 - ots 0 E I I I I I I I I I I I I I I I I I I I I I I z t od a o. ! I I I I I I I I I ,J4 -9 Rzrlry II f;- I ryR4 rl R6 ryl R7 .3 4.7K 3.6

47、V t3 I :t. I I ry I ., I J G - -: - L * 96 e 9 F - o 0 t O0 39 40 RadioFans.CN 收音机爱 好者资料库 TUNING VOLTAG REGULATOF PORTION OF PCB 046906 I 3FF - li: ?.,.;:.effij ._: :i-l:-rtl;1-: ruflrH,Ag?O (Only Section 11 Parts Symbol Numbered) s!e CONTROL/DISPLAY PCB 046906 SECTION 11 PARTS LIST Symbol Part Desc

48、ription No. No, DIODES Dl , D2 O7OO47 SIG, 75V, 150mA, 1N41 48 LIGHING DEVICES DS1-DSg 058078 LED, Red, SLP144B DS10 070115 LED, Red Bar, AND205R DS11 045600 LED, 1o-Segment Bar on pCB DS12-DS14 058083 LED, Red Triangle, AND20ZR INTEGRATED CIRCUITS ICI 133104 Tuning Voltage Regulator L45700 ICz 1331

49、18 Level Display Driver LB1411 FLAT ANODE DS1 -DS9 TRASISTORS 01 132224 a2 132223 03 132182 Q4 132220 SENSORS 121002 PNP, MPS4126 NPN, MPS4124 PNP, DAR, MPSA64 P, FET, J176 Sensor, IR rrrrx * -8 DS1 O DS1 2-DS1 4 ffi DS1 1 IC1IC2 01 -0384 41 RadioFans.CN 收音机爱 好者资料库 AM/FM Tuning Gontrol .- _ Bm .1.-.r-. .i! Saat - r- q i Srggn=T I SffiF -i-95 =-r:, *81