McIntosh MC402 Service Manual

METER LED 049809
8
PARTS LIST
INTERCONNECT
BP1 BP3 BP5 BP7 BP9 BP11 5 WAY BINDING POST (RED) 117740
BP2 BP4 BP5 BP8 BP10 BP12 5 WAY BINDING POST (BLACK) 117741
C1 C2 54000uF 75VDC 066480
C3 .22uF CAPACITOR 052005
D1 BRIDGE RECTIFIER 070139
F1 15 AMP 250V SLO BLO 089042
RT1 RT2 THERMISTER 052008
SW1 SW2 POWER/METER SWITCH 146243
T1 POWER TRANSFORMER 049818
T2 T3 OUTPUT TRANSFORMER 049817
TB1 AC TERMINAL BLOCK 074091
049826 HEATSINK
C1 C2 CAP ELECT 47UF 35V 06644600
C3 C5 CAP DISC .1UF 25V Y5T 06124800
C7 C8 CAP DISC 100PF 10% N1500 06102300
C9 C16 CAP CER 0.01UF 20% 50V 06115900
C10 CAP POLYPROP 0.15UF 10% 250VDC 06436300
D1 D2 D3 D4 D5 DIODE SILICON 07004700
D6 D7 DIODE 200V 6A 07013300
J1- CONN MALE 7 PIN 11721700
J2- CONN HEADER 2 PIN 0.156 11740400
J4 BLADE FASTON W/FEET 11770800
J4- CONN 2 PIN MALE 11721300
J5 BLADE FASTON .110 11771200
Q1 TRANSISTOR NPN SILICON 13217100
Q2 TRANSISTOR PNP SILICON 13217200
Q3 Q6 TRANSISTOR NPN 25C3334C 13228500
Q4 Q7 TRANSISTOR PNP 2SA32IC 13228600
Q8 Q10 Q26 Q28 TRANSISTOR PNP POWER 2SA1943 13229200
Q9 Q11 Q19 Q27 TRANSISTOR NPN POWER 2SC5200 13229100
R1 R8 RES CF 220 OHM 5% 1/4W 14103300
R2 R9 RES MET OX 680 OHM 5% .5W 13709300
R3 R10 RES CF 15K 5% 1/4W 14107600
R6 R11 RES MET OX 1.8K 5% .5W 13709400
R7 RES MET OX 430 OHM 5% .5W 13709500
R12 RES MET OX 47 OHM 5% .5W 13709600
R13 POT TRIM 200 OHM 20% HORIZ AD 13439000
R30 RES CF 2.2 OHM 5% 1/4W 14100900
R31 R32 R33 R34 R35 R36 R37 R38 RES WW .5 OHM 5W 5% 13917700
RT1 SENSOR THERMAL 14424900
049219 DRIVER
C1 C10 DISC CAP: .1MF, 25V, Y5T 06124800
C2 C3 C4 C5 C6 C7 C8 C9 DISC CAP 100PF 10% N1500 50V 06119900
C11 C12 C13 C14 C16 C17 C19 ELECT CAP: 10 UF 100VDC AMMO 06646200
C15 C18 ELECT CAP 47MF, 35V AMMO PACK 06644600
C20 C21 CAP ELECT 0.47UF 50V ALUM 06624400
C22 C23 C24 C25 POLYPROPY CAP.047MF 250V 06436400
C26 C27 C28 C29 M.CAP: 470PF, 5%, 100V 06125600
C30 C31 C32 C33 POLYPROPY CAP 0.15MF 250V 06436300
C34 C35 C36 C37 CAP MPOLY .0047UF 5% 63-250VDC 06430800
C38 C39 CAP M POLY .022UF 5% 100VDC 06431600
C40 C41 CAP ELECT 220UF 16V SHORT CAN 06633000
C42 C43 DISC CAP: 1.8PF .25PF NPO 06100200
IC1 DUAL OP AMP 4558 13325900
J1- J2- J3- J4- MALE CONN: 7 PIN 11721700
J6- 11-POS. MALE CONN. 11727900
J7- MALE CONN: 10 POS 11721900
J8 J9 4-PIN CONNECTOR 11721500
LDR1 LDR2 RESISTOR LDR VTL5C9 14417900
Q1 Q16 Q20 Q22 Q23 Q28 Q32 TRANSISTOR PNP SI MPS4126 13222400
Q2 Q3 Q5 Q6 Q7 Q8 Q10 Q11 N. CHANNEL FET 13222000
Q12 Q13 Q17 Q19 Q24 Q25 Q29 TRANSISTOR NPN MPS4124 13222300
Q14 Q18 Q26 Q30 Q60 Q63 Q64 TRANSISTOR: NPN 13225400
Q15 Q21 Q27 Q33 Q61 Q62 Q65 TRANSISTOR: PNP 2SA1016K 13225500
27 28
Ref. No.
Description Part No.
1
2B
2D2C
2A
3

McIntosh MC402 Specifications

General

Power Output	400 watts per channel
Number of Channels	2
Total Harmonic Distortion	0.005%
Damping Factor	>40
Dynamic Headroom	1.8dB
Output Voltage	2.8V RMS Unbalanced, 5.6V RMS Balanced
Frequency Response	20Hz - 20kHz
Power Requirement	120V 50/60Hz
Dimensions	17.5 inches
Frequency Response Extended	10Hz to 100kHz +0, -3dB