McIntosh MAC 4300V Service Manual Download Page 2 | Manualshive

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Summary of Contents for MAC 4300V

Page 1: ... Pre amp Tape Switching Section 3 Preamplifier 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 Signal Display Status lndicators lR Sensor Section 12 AM FM Tuning Control 42 44 Se...

Page 2: ...requencies 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 Stereo O OB at 100H2 power 0 08 at 1k O 120Á at 10k INPUT SENSITIViTY phono z smv produces rated output INTERMODULATION DISTORTION Tape Aux 2S0mV produces rated output Mono o o8oÁ Power Amp 1 5V produces rated output Ste...

Page 3: ...ractor 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 to 480 watts WEIGHT 34 5 pounds 15 6k9 net 48 5 pounds 22kg in shipping carton lL A l cauTtoN o r û vi I v f i íf lln vl Iv SPEAKEBS 3 CLCB 6lølløllølløllò lffi SPEAKEBS 2 CLCR lø...

Page 4: ...Views 14 31s 36 5 cm Fig 2 Top view 18 e ro 47 1 cm 6 i r o 15 4 cm II I 5 1lt 13 3 cm æ f l o o o o o o o o o E l l 3 tút ñ Ã 6 î i il t8 d 9r lo v V Þo lå fllrlnlosh urc soov nEcervrn 1 E ïiäffi Fig 3 Front view ...

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Page 9: ...nce 090218 Knob Loudness O9O221 Knob Equalizer 5 100119 Machine Screw 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 CONÍROL lOpF Rt2 lzv z Rt3 42V 22tA Rt4 TAPE 2 lliPur lO F Ril 220X INfiI AI I AI ON HARDTARE P ltI t t5ï liynrlrol Part Descript...

Page 10: ...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 Í i I lOr F Ril 220H r2 CONTROL r 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 OUTPUT ...

Page 11: ...PCB 046814 SECTION 2 PARTS LIST Symbol Part Descriptlon No No DIODES D f 010 O7OO47 SIG 75V 150mA 1N4148 Dl1 070003 Ge SIG 45V 10m4 1N541 Dl2 D15 070047 SIG 75V 150m4 1N4148 TNTEGRATED CIRCUITS ICI 133094 Dual Operational Amp NE5532N TRAT SISIORS o1 017 132193 N JFET 2N4392 13 ...

Page 12: ...8 LOUDNESS PC BOARD 046918 EOUALI ZER ner Rr8 470K ç6ox r o 3ffil lãÃfiffilnc f nss nre GND i J2 3 MONO swtfcH c4 470 J4 HEADPHONES R9 4 714 Rt9 470K R43 680 R38 680 R40 t00K c25 lO F NP 5 ú2 ô J2 t la lct VOLUi E CONTROL t4t35863tO2 15 ...

Page 13: ...O Zz PREAMP otf R PRE OUT PREAMP K our R6 rooK ñ6x I nzc IõupNE Fl OUTPUT MUTE EIfã El nss l ãóElnso lãõïil nco R4A 6AO lì sx Iilnsr aso C4t t22 R67 4 7M ct7 033 6EO R43 680 R38 680 c50 roo r5v R23 KÐ5 roox 4 t5v R5S c44 R69 470 R62 tooK c t4 15 cl6 o33 J2 4 16 ...

Page 14: ...TS 133132 CMOS Volume Control TC9153P 133094 DuaI Operational Amp NE5532N 133028 Dual Hi Speed Operational Amp MC4558CP1 133094 Dual Operational Amp 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 P...

Page 15: ... 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 o t 7 132231 418 t32232 o19 132233 o20 132189 o21 132188 rÀ Y II Ï 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 MPS412...

Page 16: ...6802 A POWER AMPLIFIER RI 560 lct tonF R3 4 7K c 28 7 or rEn rro 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 HEAT SINK TEHPE RATURE 19 20 ...

Page 17: ...AM Tuner Î 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_ ú g l I T4 R30 roo cil o47 ct4 o47 Rr9 roo Rt7 4 7K 21 22 ...

Page 18: ... T5 Description Trimmer 2 1OpF Ìrimmer 2 1OpF SIG 75V 150m4 1N4148 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 1621 l AM RF Primary 162116 AM RF Secondary 162113 AM IF...

Page 19: ...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 Color Coded SFE10 7 180028 Filter LC Low Pass Multiplex CIRCUITS 133129 RF Mixer IF LA1 l 70 133056 MPX PLL Demodulator TCA4500A 133028 DuaI Hi Speed Openational Amp M4558CP1 133110 FM IF ...

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Page 24: ...Control Logic CONTROL LOGIC PORTION OF PCB 046827 Only Section 7 Parts Symbol Numbered POWER SUPPLY LOG C PCB 046827 PC BOARD 046806 A PROGRAM KEYEOARD PROGRAM KEYBOARD PCB 046806 A 31 ...

Page 25: ... OMOS Remote Control Receiver TC9150P 6 Input Strobed DrIver LBl 760 Quad Cyclic Swltch 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 8 t 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 PNP 2M5087 NPN MPS4124...

Page 26: ...wer Display U I À t t I 2 õ õ 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 õa o I I I I I I I I I J4 9 Rzrlry I I f I ryR4 rl R6 ryl R7 3 4 7K 3 6V t3 I t I I ry I I J G J eã J aÀ ã r J b 34 ...

Page 27: ... Only Section 9 Parts Symbol Numbered SECTION 9 PARTS LIST Symbol Part No No LIGHTING DEVICES Description 9 Segment Column Comparator MLM339AP DSI O7O124 DuaI TNTEGRATED CIRCUITS IC1 IC4 133092 Quad CONTROL DISPLAY PCB 046906 35 IC1 1C4 ...

Page 28: ...D1 D14 070047 LIGHTING DEVICES DS1 058084 Description SIG 75V 150m4 1N4148 LED 7 Segment 4 Digit Display sL 1447 CONTROL DISPLAY PCB 046906 INTEGRATED IC1 rcz TRAI SISTORS o1 o9 CRYSTALS Y l CIRCUITS 133106 Counter Clock 7 Segment Driver LC7250 13310 ECL Divide by 100 Prescaler DS8629N 132224 PNP MPS4126 180029 Crystal 4mïz x OO25 ffi o t o9 36 ïc1 TC2 ...

Page 29: ...906 FREOUENCY COUNTER R30 470 I MRZ OUT o q o o ç o 6 _q I o 23 22 24 25 26 27 2A 29 30 3t 34 35 36 37 38 39 40 4t 42 ó z 17 tct FREQUENCY COUNÍER z 3 L 96 e ãã Ë Hõ f ll15201921613t29loA16165432 DI Rt5 37 ro 2 Jto 6 Jro 3 Jto 7 38 ...

Page 30: ...egulator J6 5 16 4 J6 3 J6 2 16 7 J6 8 J6 9 J6 tO J 9 J6 6 ry Jr ro fl ot si DS6 SPKR 2 DS5 SPKR I osto tPx Rt8 5 6K c9 IO JF Rro 4 99K sEf soR INVERTER c7 Z 2tF tcz r3 D6 DI rcr r7 tc2 3 4 7 tF E l 9þ F o 0 t O0 39 40 ...

Page 31: ...G 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 133118 Level Display Driver LB1411 FLAT ANODE DS1 DS9 TRA SISTORS 01 132224 a2 132223 03 132182 Q4 132220 SENSORS 121002 PNP MPS4126 NPN MPS4124 PNP DAR MPSA64 P FET J176 Sensor IR...

Page 32: ...ection 12 Parts Symbol Numbered Part Description No O7OO47 SIG 75V 150mA 1N4148 CIRCUITS 133105 Dual Hi Speed Operational MC3458P1 133103 Tuning Control LC72O7 132235 NPN 2SC2240 BL 132223 NPN MPS4124 144180 Resistors Network Amp ffiffi CONTROL DISPLAY PCB 046906 SECTION 12 PARTS LTST Symbol No DIODES D1 D4 INTEGRATED IC1 rcz TRAI SISTORS o1 02 03 RESTSTORS R16 42 O1 a2 83 ...

Page 33: ...RI 33K t 2 av 3 5 24V NC NC 9V R2r 6X 47K q Rr5 2 2t i O F e1 ñ àÈ l E I I Ril 9tK Þ 2 o068 ì z tstsogooø ó rq Åp4 rs j ølt Øø ts rB up oõri lt il coRRECItON rN I I3 DEV IN MUTE 22 AFL OUT 3 8V REF 24 26 27 28 29 17 ENIER t6 MAt 15 SCAN DOWN 6 AM SEL 5 FM SEL STAT 6 37 STAT 5 38 STAT 4 39 STAT 3 40 STAT 2 4I STAT I 42 MAN ã tNDtcÂToR 3 STANDBY 2 MUTING PULSE I CLOCK 47 NC t 2 8V 43 44 ...

Page 34: ... rrÞNPry cq di ñúúþ F F11 la JG i l oP ço ñ r r HH E e v E À JÊP 111 ü I óÞñt Gq Àä Êõ J e Y l J SPKR CoH SP5 7 T82 3 4C ï82 3 4C r ao l arr 36 AWo ttt J4 3 r 5 l 3 IJ I 2 Rto 6 8K R9 6 AK c2 33OO F rvv 42 YAC zSP2 l SPKR 2 SPKR 3 RELAY RELAY DRIVER DRIVER 45 46 ...

Page 35: ...V 1A IN4004 SIG 75V 150mA 1N4148 RECI 200v 6A M7C5 RECT 400v 1A 1N4004 zN 16V 5 500mW SIG 75V 150m4 1N4148 FttsEs F1 174198 INTEGRATED CIRCUITS rc1 133108 1C2 133086 IC3 133087 RELAYS K1 K4 087043 Fuse 36 gauge Wine 5V Regulator 15V Regulator 15V Regulator DPDT 24VDC Tinned Copper MC7B05CT MC781 5CT MC791 sCT Output Process ng and Power Supply Only Section l3 Parls Symbol Numberèd POWER SUPPLY LOG...

Page 36: ...No DIODES D1 D7 O7OO4 D2 O6 070131 Fr tsES F1 089047 INTEGRATED CIRCUTTS IC1 1 33093 RELAYS Kl 087038 TRAI SISTORS 81 132090 TRAI SFORMERS T1 159195 r3 2 Descrlption SIG 75V 150mA 1N4148 RECT 400V 14 1N4004 Fuse FA 1 16A 25OV 5V Regulator LM7805AC SPST 12VDC NPN DAR Selected MPSA14 POWER 48 INPUT ...

Page 37: ... for best separation minimum output 18 Reduce the generator output to 50uV and adjust the STEREo BLEND pot R32 for 20dB separation 19 Reduce the generator output to 2 Suy and adjust the MUTING STEREO SWITCH pot R4B so the MPX light just comes on Al gnment Procedure Section 1O Frequency CoLnter 20 Remove the generator and connect an antenna Tune to a station of known frequency and check for proper ...

Page 38: ...feet 1O x 3 4 screw for O1721A 1O x 1 3 4 screw for 033454 10 flat washer for 1O1014 Inside carton only Shipping carton complete Cushion Pad Corner Pads 4 Packed Unit Cushion Pad Shipping Carton 13903 2699 607 723 3512 o33475 033449 033258 033454 033333 033350 017218 1 001 59 101014 1 04033 o33451 o469b1 4 4 4 Foam P d Foam Sheet 10 FIat Wa 10 X 2 Scr Inside Canton MAC43OOV AM FM RECEIVER Th e con...

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