McIntosh MC302 Service Manual

47 48
DISPLAY/METER LIGHT 751139 SCH
L INTENSITY
R INTENSITY
R GRN
GND
L COLOR
R COLOR
R BLU
J5:7
J5:1
J5:9
GND
J5:11
DS3
DS5DS4 DS6
J3:3
GND
5k
1 3
2
CCW
R17
500
1 3
2
CCW
R20
5k
1 3
2
CCW
R18
500
1 3
2
CCW
R21
DS2
DS1
ON
REM
OFF
HOLD
LIGHTS OFF
POWER
METER
1
1
1
FP ON
FP OFF
GND
1
1
ML OFF
GND
J1:1
J1:4
J1:7
J4:1
J4:7
WATTS
J4:4
1
HOLD
J2:4
J2:5
J2:7
J2:8
J2:9
J2:11
R G B
1
2 3 4
DS12
R G B
1
2 3 4
DS20
R G B
1
2 3 4
DS16
R G B
1
2 3 4
DS8
1.5K
R35
1.5K
R51
1.5K
R27
1.5K
R43
3.92K
R31
3.92K
R23
3.92K
R47
3.92K
R39
J7:10
J7:12
R GRN
GND
R BLU
GND
BREAKAWAY
BREAKAWAY
BREAKAWAY
+5V
4.75K
R3
+5V
TURN ON
CONTROL
0V
5V
4
2
1
3
B+
GND
5
U2
+5V
4
2
1
3
B+
GND
5
U4
+5V
4.75K
R10
47.5K
R4
22.1K
R5
+5V
.1UF
C1
PC IN
FP OFF
FP ON
PWR ON
4
2
1
3
B+
GND
5
U3
+5V
METER LIGHT
CONTROL
+5V
5V0V
4
2
1
3
B+
GND
5
U1
+5V
22.1K
R2
47.5K
R1
4.75K
R12
33.2K
R8
221
R13
L PG LED
33.2K
R9
3
1
2
Q2
4.75K
R19
1K
R6
+15V
3
1
2
Q5
+15V
.6V
1K
R7
-15V
221
R11
475
R16
475
R15
R PG LED
-15V
-14.4V
3
1
2
Q3
3
1
2
Q1
3
1
2
Q4
221
R14
ML REM
AC DET
PG LT R
PG LT L
ML OFF
+5V
+15V +15V
PC IN
ML REM
PG LT
AC DET
+15V
-15V
HOLD
R
+15V
-15V
HOLD
PG LT
+5V
L
J3:2
J3:7
J3:1
+5V
MAIN
R G B
1
2 3 4
DS11
R G B
1
2 3 4
DS19
R G B
1
2 3 4
DS15
R G B
1
2 3 4
DS7
1.5K
R34
1.5K
R50
1.5K
R26
1.5K
R42
3.92K
R30
3.92K
R22
3.92K
R46
3.92K
R38
R G B
1
2 3 4
DS14
R G B
1
2 3 4
DS22
R G B
1
2 3 4
DS18
R G B
1
2 3 4
DS10
1.5K
R37
1.5K
R53
1.5K
R29
1.5K
R45
3.92K
R33
3.92K
R25
3.92K
R49
3.92K
R41
L GRN
GND
L BLU
GND
R G B
1
2 3 4
DS13
R G B
1
2 3 4
DS21
R G B
1
2 3 4
DS17
R G B
1
2 3 4
DS9
1.5K
R36
1.5K
R52
1.5K
R28
1.5K
R44
3.92K
R32
3.92K
R24
3.92K
R48
3.92K
R40
HOLD
MAIN
J2:2
J3:11
J3:12
J3:9
J3:5
J7:1
J7:7
J7:11
2
2
2
2
2
2
2
2
2
2
2
10
10
10
11
11
11
10
10
10
10
1011
KNOB LEDS LOGO LED
STANDBY LED
J5:5
J5:8
J5:6
J5:12
J7:3
J7:9
J7:4
J7:5
J7:8
J7:2
J7:6
J8:10
J8:12
J8:1
J8:7
J8:11
J8:3
J8:9
J8:4
J8:5
J8:8
J8:2
J8:6
J5:3
J5:4
J5:2
J5:10
L BLU
GND
L GRN
J6:7
J6:1
J6:9
GND
J6:11
11
11
11
11
J6:5
J6:8
J6:6
J6:12
J6:3
J6:4
J6:2
J6:10
J3:4
PWR ON
2
J2:6
5V
J2:12
5V
5V
5V
0V
475
R54
221
R55
221
R56
221
R57
221
R58
.6V
+5V
D1
5V
10
DISPLAY
11
METER LIGHT
11
METER LIGHT
0V
5V
15V
0V
15V
0V
METER LIGHT 751139 SCH
1110 11

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