Text preview for : McIntosh-MC602 pwramp.pdf part of McIntosh MC602 power amplifier
Back to : McIntosh-MC602 pwramp.pdf | Home
POWER AMPLIFIER
CONTENTS
Performance Specifications ........................................ 2 Notes ......................................................................... 2 Rear Panel .................................................................. 3 Section Location ........................................................ 4 Block Diagram ...................................................... 5 - 6 Interconnection Diagram ...................................... 7 - 8 Heatsink Schematic and PCB .............................. 9 - 10 Driver Schematic and PCB ................................ 11 - 13 Input Schematic and PCB ......................................... 14 Capacitor Schematic and PCB ................................. 15 Meter Schematic and PCB ................................. 17 - 19 Indicator Schematic and PCB ................................... 20 PG Light Schematic and PCB ............................ 21 - 22 Meter Lamps Schematic and PCB ..................... 21 - 22 Standby Light Schematic and PCB .................... 21 - 22 Parts List ............................................................ 23 - 24 Exploded View and Parts List ............................. 25 - 28 Repacking Instructions ............................................. 29
SERVICE MANUAL
PERFORMANCE SPECIFICATIONS
POWER OUTPUT STEREO 600 watts into 2, 4 or 8 ohm loads is the minimum sine wave continuous average power output per channel with both channels operating. OUTPUT LOAD IMPEDANCE 2, 4 or 8 ohms RATED POWER BAND 20Hz to 20,000Hz DYNAMIC HEADROOM 2.1dB FREQUENCY RESPONSE +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz TOTAL HARMONIC DISTORTION 0.005% maximum at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz, all channels operating. INTERMODULATION DISTORTION 0.005% maximum if instantaneous peak output per channel does not exceed twice the rated output with all channels operating for any combination of frequencies from 20Hz to 20,000Hz. SIGNAL TO NOISE RATIO (A WEIGHTED) 93dB Unbalanced (120dB below rated output) 97dB Balanced (124dB below rated output) SENSITIVITY 2.45 Volts Unbalanced Input 4.9 Volts Balanced Input INPUT IMPEDANCE 10,000 ohms Unbalanced and Balanced WIDE BAND DAMPING FACTOR 100 @ 8 ohms POWER REQUIREMENTS 100 Volts, 50/60Hz at 18 amps 110 Volts, 50/60Hz at 16.5 amps 120 Volts, 50/60Hz at 15 amps 220 Volts, 50/60Hz at 8.2 amps 230 Volts, 50/60Hz at 7.8 amps 240 Volts, 50/60Hz at 7.5 amps
NOTE: Refer to the rear panel of the MC602 for the correct voltage.
DIMENSIONS Front Panel: 17-3/4 inches (46cm) wide, 11 inches (28cm) high. Depth behind front mounting panel is 19-5/8 inches (49.83cm). Clearance required in front of front panel is 1-3/4 inches (4.5cm). WEIGHT 155lbs. (70.3kg) Net 180lbs. (81.6kg) Shipped
NOTES
1. The heavy notes on the schematic denote the primary signal path. 2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A high impedance (10 megaohm) voltmeter must be used. 3. Unless otherwise specified: a. Resistor values are in ohms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH) . 4. On PC board drawings, Square pad indicates: a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1 WARNING Parts marked with the symbol have critical characteristics. Use only replacement parts recommended by the manufacturer.
5.
2
MC602
REAR PANEL
3
SECTION LOCATIONS
4
MC602
BLOCK DIAGRAM
5
6
INTERCONNECT
7
8
MC602
2A 2B 2C 2D
HEATSINK 049368
9
10
3 DRIVER 049369
11
12
MC602
3 DRIVER 049369
4 INPUT
049222
13
14
5 CAPACITOR 049367
NOTES
15
16
MC602
6 METER 049384
17
18
6 METER 049384
7 INDICATOR
049371
19
20
MC602
8 PG LIGHT 049370
9 METER LAMPS 049373
10 STANDBY LIGHT 049395
21
22
PARTS LIST
Part No. Description Reference No. C7 C8 C9 C16 C3 C5 C10 C1 C2 D1 D2 D3 D4 D5 D6 D7 J4J1J2J4 J5 Q1 Q2 Q6 Q7 R13 R2 R9 R6 R11 R7 R12 R31 R32 R33 R34 R35 R36 R37 R38 R40 R41 R42 R43 R1 R8 R3 R10 R39 RT1 R30 C42 C43 C2 C3 C4 C5 C6 C7 C8 C9 C1 C10 C26 C27 C28 C29 C34 C35 C36 C37 C38 C39 C30 C31 C32 C33 C22 C23 C24 C25 C20 C21 C40 C41 C15 C18 C11 C12 C13 C14 C16 C17 C19 J8 J9 J1- J2- J3- J4J7J6Q2 Q3 Q5 Q6 Q7 Q8 Q10 Q11 Q12 Q13 Q17 Q19 Q24 Q25 Q29 Q31 Q36 Q67 Q70 Q78 Q80 Q1 Q16 Q20 Q22 Q23 Q28 Q32 Q34 Q35 Q37 Q38 Q39 Q59 Q66 Q14 Q18 Q26 Q30 Q60 Q63 Q64 Q71 Q74 Q75 Q76 Q77 Q15 Q21 Q27 Q33 Q61 Q62 Q65 Q68 Q69 Q72 Q73 Q79 Q55 Q56 Q57 Q58 Q40 Q41 Q42 Q43 IC1 R3 R27 R74 R80 R110 R112 R114 R116 R109 R111 R113 R115 R104 R106 R107 R108 144028 144071 144090 144095 144097 144108 144113 144128 144172 144179 144187 144196 144265 144298 144338 144352 144364 144398 144401 144443 RES MF 866 1% 1/4W RES MF 365 1% 1/4W RES MF 1K 1% 1/4W RES MF 3.32K 1% 1/4W RES MF 4.75K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 100K 1% 1/4W RES MF 1.5K 1% 1/4W RES MF 221 1% 1/4W LDR NETWORK VTL5C9 RES MF 22.1K 1% 1/4W RES MF 100 1% 1/4W RES MF 2.21M 1/4W RES MF 2.21K 1% 1/4W RES MF 324 OHM 1% 1/4W RES MF 174K 1% 1/4W RES MF 475K 1% 1/4W METAL FILM RES 3.79K .5% 1/4W RES MF 6.49K .5% 1/4W METAL FILM RES 681K 1% 1/4W R2 R4 R30 R57 R64 R65 R83 R91 R17 R18 R19 R20 R21 R22 R23 R29 R42 R43 R44 R45 R46 R47 R48 R67 R60 R86 R53 R69 R72 R75 R92 R95 R97 R98 R58 R84 R61 R63 R87 R90 R76 R77 R78 R79 R10 R12 R35 R37 R6 R24 R31 R49 R150 R151 R152 R153 LDR1 LDR2 R7 R32 R101 R5 R62 R89 R100 R9 R15 R34 R40 R103 R105 R16 R41 R66 R71 R73 R88 R93 R99 R14 R39 R59 R85 R8 R33 R55 R81 R11 R25 R38 R50 R13 R26 R36 R51 R68 R70 R94 R96 C11 C12 C7 C8 C9 C10 C1 C2 C4 C6 J7J2J11- J12J3 J4 IC1 R130 R131 R133 R135 R138 R140 R142 R132 R136 R137 R139 S1 J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 117279 117708 131021 131022 132223 132224 132226 132242 132254 133093 133155 133156 133189 133192 133260 134383 139079 139218 141023 144015 144083 144091 144095 144097 144108 144117 144154 144181 144187 144195 144196 144199 144210 144264 144269 144271 144296 144364 144406 144419 159215 178159 11-POS. MALE CONN FASTON BLADE W/FEET TRIAC 8A 200V 600V TRIAC DRIVER OPTOCOUPLER TRANSISTOR NPN MPS4124 2K/REEL TRANSISTOR PNP TRANSISTOR P.CHANNEL JUNC.FET TRANSISTOR POWER N-CHN TRANSISTOR NPN IC REGULATOR +5 VOLT IC REGULATOR -12V IC REGULATOR 12V IC OPERATIONAL AMPLIFIER IC NAND SCHMIT 2-IN X 4 DUAL OPERATIONAL AMPLIFIER TRIM POT 100K OHM 20% WIRE RES 1.5K 10% 5W 2.7 OHM 2W 5% WW RESISTOR FP RES CF 8.2 5% 1/4W RES MF 33.2K 1% 1/4W RES MF 5.11K 1% 1/4W RES MF 1.1K 1% 1/4W RES MF 3.32K 1% 1/4W RES MF 4.75K 1% 1/4W RES MF 47.5K 1% 1/4W RES MF 200K 1% 1/4W RES MF 12.1K 1% 1/4W RES MF 18.2K 1% 1/4W RES MF 22.1K 1% 1/4W RES MF 681 1% 1/4W RES MF 100 1% 1/4W RES MF 3.16K 1% 1/4W RES MF 7.5K 1% 1/4W RES MF 10M 1% 1/4W RES MF 1M 1/4W RES MF 2.74M 1/4W RES MF 1.82K 1% 1/4W RES MF 475K 1% 1/4W METAL FILM RES 187K 1% 1/4W MF RES 150K 1% 1/4W CURRENT TRANSFORMER FUSE HOLDER 5X20MM PCB MOUNT J1- J2J12 J15 J16 Q12 Q23 Q1 Q2 Q13 Q14 Q15 Q16 Q17 Q20 Q18 Q22 Q19 Q10 Q11 Q8 Q9 Q24 Q25 Q21 IC7 IC6 IC2 IC4 IC5 IC3 R1 R2 R68 R69 R35 R39 R6 R17 (R61 & R62 ARE FOR CONVERSION) R47 R60 R50 R4 R42 R44 R7 R11 R23 R37 R45 R51 R66 R9 R33 R5 R14 R55 R57 R58 R67 R10 R34 R56 R43 R48 R65 R8 R32 R54 R59 R12 R41 R64 R63 R71 R72 R46 R49 R52 R53 R30 R31 R36 R40 R70 T1 T2 F1 DS1 DS2 DS9 DS13 J6- J7J4- J9J3D1 D2 J10DS3 DS4 DS5 DS6 DS8 DS10 DS12 DS14 J2049368 HEATSINK 061300 MONO CAP 100PF 100V 5% NPO T&R 061304 MONO CAP .01UF 50V 5% X 7R T&R 061305 MONO CAP .1UF 50V 5% Z50 T&R 064363 CAP POLYPROP 0.15MF 10% 250VDC 066446 CAP ELECT 47MF 35V 070047 SILICON DIODE 1N4148 T&R 070133 DIODE 200V,6A 117213 2-PIN MALE CONNECTOR 117217 MALE CONN 7 PIN 117404 HEADER 2-PIN 0.156 117708 FASTON BLADE W/FEET 117712 FASTON BLADE .110 132171 TRANSISTOR NPN 132172 TRANSISTOR SI PNP MPSA55 132285 TRANSISTOR NPN 25C3334C 132286 TRANSISTOR PNP 2SA32IC 134390 TRIM POT 200 OHM 20% HORIZ AD 137093 MET OX 680 5% .5W 137094 MET OX 1.8K 5% .5W 137095 MET OX 430 5% .5W 137096 MET OX 47 5% .5W 139177 WIREWOUND RES 0.5 OHM 5W 5% 144071 144187 144243 144249 144378 RES MF 365 1% 1/4W RES MF 22.1K 1% 1/4W RES WW 0.1 5% 1W THERMAL SENSOR RES MF 2.21 OHM 1/4W 1%
049369 DRIVER 061002 DISC CAP 1.8PF+/-.25PF NPO 061199 DISC CAP 100PF 10% N1500 50V 061248 DISC CAP .1MF,25V,Y5T 061256 M.CAP 470PF,5%,100V 064308 CAP MPOLY .0047UF 5% 63-250VDC 064316 CAP M POLY .022UF 5% 63VDC 064363 CAP POLYPROP 0.15MF 10% 250VDC 064364 CAP POLYPROP .047MF 10% 250V 066244 CAP ELECT 0.47UF 50V 20% 066327 CAP ELECT 470UF 10V 066446 CAP ELECT 47MF 35V 066462 CAP ELECT 1OUF 100VDC 117215 4-PIN CONNECTOR 117217 MALE CONN 7 PIN 117219 MALE CONN 10 POS 117279 11-POS. MALE CONN. 132222 N. CHANNEL FET 132223 TRANSISTOR NPN MPS4124 2K/REEL 132224 132254 132255 132285 132286 133260 137042 139005 139119 144015 TRANSISTOR PNP TRANSISTOR NPN TRANSISTOR PNP TRANSISTOR NPN 25C3334C TRANSISTOR PNP 2SA32IC DUAL OPERATIONAL AMPLIFIER FLAMEPROOF RES 47 OHM 5% 1/4W WIRE RES 2 OHMS 10% 5W WIRE RES 4 OHMS 5% 5W RES MF 33.2K 1% 1/4W
049222 INPUT 061191 DISC CAP 22PF,10%,NPO 50V 061196 DISC CAP 47PF,20%,N470 50V 061248 DISC CAP .1MF,25V,Y5T 066445 ELECT CAP 10MF, 50V AMMO PACK 117219 MALE CONN 10 POS 117436 PJ261G PHON JACK, GOLD 117494 MINI JACK 117685 XLR RECEPTACLE FEMALE 133260 DUAL OPERATIONAL AMPLIFIER 141025 RES CF 100 5% 1/4W 144053 RES MF 10K 1% 1/4W 144352 RES MF 174K 1% 1/4W 148059 SLIDE SWITCH 049367 CAPACITOR 117404 HEADER 2-PIN 0.156 117708 FASTON BLADE W/FEET 049384 METER 061305 MONO CAP .1UF 50V 5% Z50 T&R 064329 CAP M POLY .22UF 5% 63VDC 064337 CAP M POLY 1MF 5% 63VDC 066289 CAP ELECT 4.7UF 10% 35V 066309 CAP ELECT 1000UF 10V 066361 CAP ELECT 1000UF 20% 35V 066506 CAP ELECT 22UF 100V 070047 SILICON DIODE 1N4148 T&R 070085 070114 070131 080014 087049 089089 117214 117215 117217
C14 C21 C22 C25 C26 C15 C16 C28 C11 C12 C27 C1 C2 C30 C31 C29 D1 D2 D3 D4 D5 D6 D7 D9 D10 D13 D14 D15 D16 D17 D18 D19 D21 D22 D23 D24 D25 D28 ZENER DIODE 6.2V 5% 500MW D27 ZENER DIODE 16V 5% 500MW D26 D29 DIODE RECTIFIER D30 D31 D32 HEATSINK T0220 ATTACH TO Q10 Q11 Q12 RELAY 48VDC VFB48HU ITT TAKAMI K1 FUSE 2A SLO-BLO 5X20 F1 MALE CONN 3-POS MTS100 NORMAL J84-PIN CONNECTOR J10MALE CONN 7 PIN J9-
049371 INDICATOR 058120 LAMP 14V #7373 117213 2-PIN MALE CONNECTOR 117215 4-PIN CONNECTOR 117279 11-POS. MALE CONN. 049370 PG LIGHT 058133 AMBER LED 117215 4-PIN CONNECTOR 049373 METER LAMPS 058120 LAMP 14V #7373 117215 4-PIN CONNECTOR
049395 STANDBY LIGHT 058148 RED LED HIGH EFFICIENCY 117215 4-PIN CONNECTOR
DS15 J8-
23
24
MC602
EXPLODED VIEW
1 0F 2
25
26
EXPLODED VIEW 2 OF 2 AND PARTS LIST
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 084180 049368 114118 114119 112087 101059 005058 005055 005050 104007 049367 100188 066489 005061 100250 102045 005042 101197 104142 101114 104095 049222 004954 101176 005043 005057 005041 102006 070139 084135 078034 074091 104001 104004 102022 049370 024010 049369 017770 017160 102005 104014 088022 102032 117487 117740 117741 104162 102052 102051 100102 102020 018632 017797 005045 018445 104080 100159 126666 126592 126593 ISOSTRATE HEATSINK PCB ASSY TRANSISTOR CLIP 218 TRANSISTOR CLIP 214 PCB SPACER 1/4" SM 6 X 5/8 PHIL PAN TYPE A HEATSINK COVER LEFT HEATSINK COVER RIGHT CAPACITOR COVER LK WASHER 6 X .288 INT STAR CAP PCB ASSY SEMS MS 10-32 X 3/8 INDENTED 27000uf 100V ELECTROLYTIC CAPACITOR CLAMP SEMS MS 6-32 X 1/4 PHIL PAN KEP NUT 6-32 SPECIAL REAR PANEL HI/LO 4-24 X 3/8 PH ROUND BLK LOCKWASHER 2.5mm INT STAR ZINC SM 4-24 X 1/2 PHIL PAN TYPE A LK WASH: #4 INT STAR INPUT PCB ASSY HEATSINK VENT COMPLETE TCS 6-32 X 1/2 PH PAN BLK TYPE F SUBREAR PANEL FRONT SUPPORT BRACKET CHASSIS SUPPORT BRACKET MACH NUT: 10-32 W/LOCK RECTIFIER BRIDGE MC1000 THERMAL PAD MC7150 GROMMET AC TERMINAL BLOCK FLAT STEEL WASH #4 X 9/32 X .025 LK WASH 5 X .255 INT STAR MN 4-40 X 3/16 PG PCB ASSY FOOT PAD DRIVER PCB ASSY PCB SHEILD MOUNTING TAB W/.140 DIA MTG MACH NUT: 8-32 W/LOCK LK WASHER 3/8 X .507 INT STAR CIRCUIT BREAKER 20AMP 250VAC HEX NUT 3/8-32 X 1/16 THK-HEX MC1000 AC LINE RECEPT BINDING POST RED BINDING POST BLACK LOCKWASHER INTERNAL TOOTH NUT GOLD SUPPLIED W/117758 HEX NUT M9 X .75 GOLD PLATED 1/4 - 20 X 3/8 PAN PH BLK ZINC MCH NUT: 6-32 SLF-LOCK HANDLE BACK TERMINAL BLOCK COVER BOTTOM COVER FOOT MC1000 FLAT WASHER #10 CLEAR ZINC MS 10-32 X 3/4 PH PAN BLK ZINC TOP COVER DECAL OUTPUT TRANSFORMER DECAL POWER TRANSFORMER DECAL
Ref No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Part No. 016416 018631 018633 049321 104017 100200 092418 017798 005049 101142 101078 101172 005052 005044 146243 021159 005054 005060 049373
Description FRONT GLASS FAB HANDLE FRONT PANEL SIDE KNOB ASSEMBLY MC352 BLK FELT WASH: 3/4 X 1/4 X 1/16 MS 10-32 X 1/2 PH TRUSS BLK DISPLAY FILTER BLUE DISPLAY PLEXIGLAS PANEL PLATE SOCKET HEAD CAP SCREW ALLEN TS 8-32 X 5/16 PHIL PAN BLK TS 6-32 X 1/4 PHIL FLAT U/C DUST COVER SUBPANEL POWER SWITCH BUSHING SWITCH GUSSET BRACKET LEFT RIGHT GUSSET BRACKET LAMP PCB ASSY 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 104137 102001 049371 049395 112038 124073 092400 092401 017749 102003 049384 114072 005059 049365 049366 078025 101054 005048 018627 FIBRE WSHR .125ID X .312OD X.062 KEP NUT 4-40 CADMIUM PLATE LIGHT PCB ASSY STANDBY LIGHT PCB ASSY STL SPACER 4 X 3/8L NICKEL PLT PANEL METER MC552 BLUE FILTER AZURE BLUE FILTER PALE METER LIGHT BOX MACH NUT 6-32 W/LOCK METER PCB PLASTIC RIVET: NYLON (POP-IN) METER SUPPORT BRACKET OUTPUT TRANSFORMER POT POWER TRANSFORMER POT RUBBER GROMMET 3/4 TS 6-32 X 1/4 PH PAN TAPTITE BLK STAINLESS CHASSIS W/PEMS HEATSINK COMPLETE
27
28
REPACKING INSTRUCTIONS
29
POWER AMPLIFIER
SERVICE MANUAL
The continuous improvement of it's products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products' circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended for information only. McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040689