McIntosh MC302 Service Manual

MC302
25 26
LEFT INPUT 751208 SCH
5
4
2
3
1
S
-
+
G
J4
100pF
C6
10µF
C3
L PG
V +
V -
Vocm
ENA
1
7
2
8
5
4
3
6
9
HT SNK
U2
2.21k
R13
2.21k
R14
1.65k
R9
1.65k
R7
+14V
-14V
HEATSINKL
L PG
22.1
R11
22.1
R10
L INPUTS
220uF
C10
.1µF
C11
.1µF
C9
10
R17
10
R18
+14V
-14V
1k
R6
47pF
C8
1k
R5
100pF
C7
2 1
3 4
K1
1k
R3
1k
R4
22.1k
R2
100pF
C4
2 1
3 4
K2
D1
22.1k
R1
10µF
C2
2
3
1
84
B+
B-
U1:1
6
5
7
U1:2
+14V
-14V
100pF
C5
475
R12
2
2
MAIN
J8:1
PC OUT 2
J8:2
J8:3
J8:4
J8:5
J8:6
+15V
-15V
PC OUT
MODE
GND
ML REM
GND
J8:7
2
2
2
2
2
1
3
2
J6:1
2 1
3
G
D
S
Q1
MODE
ML REM
PC OUT
PGND
+15V
-15V
L + INP
J7:5
J7:3
J7:4
J7:1
7
7
GND
7
PG ATT
7
FB COM
L
L (+)
INP
L
2.21M
R8
4
6
5
J6:2
PC OUT 1
J2:5
1
Top
3
J1:1
2
Bottom
4
J1:2
L RCA
R RCA
J2:6
J2:7
J2:9
J2:10
J2:11
J2:12
J2:1
J2:2
J2:3
J2:4
J5:6
J5:7
J5:8
J5:9
J5:10
J5:11
J5:12
J5:1
J5:2
J5:3
J5:4
2.21k
R16
2.21k
R19
2.21k
R15
2.21k
R20
2
3
1
84
B+
B-
U3:1
+14V
-14V
-14V
6
5
7
U3:2
220uF
C12
J3:5
J3:6
J3:7
J3:9
J3:10
J3:11
J3:12
J3:1
J3:2
J3:3
J3:4
6
6
6
0V
0V
0V
-12V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V

McIntosh MC302 Specifications

General

Damping factor	40
Amplifier class	-
Frequency range	10 - 100000 Hz
RMS rated power	600 W
Audio output channels	2.0 channels
Peak power per channel	300 W
Signal-to-Noise Ratio (SNR)	122 dB
Total Harmonic Distortion (THD)	0.005 %
XLR in	Yes
Speakers connectivity type	Binding post
Product color	Black
Connectivity technology	Wired
Maximum current	6.6 A
AC input voltage	110 V
AC input frequency	50 - 60 Hz

Weight and Dimensions

Depth	558.8 mm
Width	444.5 mm
Height	239.7 mm
Weight	44450 g