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McIntosh MC302 Service Manual

McIntosh MC302
36 pages
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MC302
13 14
MAIN 751291 SCH 3 OF 3
2
+5V
.1µF
C16
10µF
C1
7
3 1
2
G
D
S
Q4
AMP MUTINGTURN ON DELAY
1µF
C15
1M
R15
.22µF
C14
+15V
+15V
3
1
2
Q3
DRIVER
PC OUTPUT
MUTE
5V
0V 5V
12V
0V
13.6V
5V
-18V
THERMAL PROTECTION
-15V
-15V-15V
4
2
1
3
B+
GND
5
U5
+5V
4
2
1
3
B+
GND
5
U6
+5V
4
2
1
3
B+
GND
5
U7
+5V
D10
47.5K
R16
10K
R17
.1µF
C18
1K
R26
22.1
R27
3
1
2
Q8
3
1
2
Q5
2.21M
R14
3
1
2
Q7
3
1
2
Q9
3
1
2
Q10
3
1
2
Q11
3
1
2
Q12
10K
R24
33.2K
R23
1K
R19
R25
12.1K
R28
12.1K
R30
22.1K
R32
681K
R31
L + PTC
L - PTC
R + PTC
R - PTC
1K
R20
1.82K
R34
3
1
2
Q13
J27:1
J27:2
J27:3
J27:4
J27:5
+15V
+15V
-15V
-15V
PC IN
MODE
GND
J27:6
ML REM
6
6
6
6
6
6
.7V
R INPUT
AC DET
L (-) PTC
-15V
+15V
+15V
-15V
MUTE
L PG LT
L + PTC
MUTE
J21:7
J21:1
J21:4
J21:5
PWR RLY
-18V
J27:7
GND
6
L (+) PTC
-15V
+15V
+15V
-15V
MUTE
L PG LT
L - PTC
MUTE
-18V
HEATSINK
L
R (-) PTC
-15V
+15V
+15V
-15V
MUTE
R PG LT
R + PTC
MUTE
R (+) PTC
-18V
-15V
+15V
+15V
-15V
MUTE
R PG LT
R - PTC
MUTE
-18V
J28:1
DISPLAY
PC IN
ML REM
GND
HOLD
HOLD L
J26:1
J26:2
J26:3
J26:4
J26:5
+15V
+15V
-15V
-15V
PC OUT
MODE
GND
J26:6
ML REM
5
5
5
5
5
5
L INPUT
J26:7
GND
5
PC OUTPUT
DELAY
J22:7
J22:1
J22:4
J22:5
J23:7
J23:1
J23:4
J23:5
J24:7
J24:1
J24:4
J24:5
MODE
ML REM
PC IN
PC OUT
PWR ON
L PG LT
R PG LT
L PG LT
R PG LT
AC DET
J28:2
J28:4
J28:5
J28:6
+15V
-15V
+15V
-15V
J28:11
J25:1
J25:2
L
J28:9
HOLD
HOLD R
R
+5V
+5V
J25:6
J25:10
J25:11
J25:12
J25:4
DISPLAY
J25:8
7
7
7
7
7
7
7
7
7
7
10
10
10
10
10
10
10
10
10
10
10
J28:8
J21:3
J22:3
J23:3
J24:3
HEATSINK
R
7
7
7
7
7
7
7
7
7
7
.3V
D11
PWR ON
J25:9
J28:7
100K
R18
METER V
L MET V
J22:6
7
L
J24:6
METER V
R MET V
7
R
-15V
R29
3
1
2
Q6
+15V
10K
R22
10K
R21
0V
0V
0V
0V
0V
0V
0V
0V
0V
-5V
681K
22.1K
13.2V
12.6V
12V
12.6V
13.6V
0V
0V
0V
21.6V
18.3V
-.5V
0V
0V
-21.5V
0V
0V
0V

Other manuals for McIntosh MC302

Preview: Owner's Manual
Owner's Manual20 pages

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McIntosh MC302 Specifications

General IconGeneral
Damping factor40
Amplifier class-
Frequency range10 - 100000 Hz
RMS rated power600 W
Audio output channels2.0 channels
Peak power per channel300 W
Signal-to-Noise Ratio (SNR)122 dB
Total Harmonic Distortion (THD)0.005 %
XLR inYes
Speakers connectivity typeBinding post
Product colorBlack
Connectivity technologyWired
Maximum current6.6 A
AC input voltage110 V
AC input frequency50 - 60 Hz
Weight and Dimensions IconWeight and Dimensions
Depth558.8 mm
Width444.5 mm
Height239.7 mm
Weight44450 g

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