McIntosh MA7000 Service Manual

11 12
MAIN 750856 SCH 1 of 5
3
1
1
1
BLU
GRN
BLU
1.1A
t
R1
.047uF
C3
3
1
2
IN OUT
U2
3300uF
C5
2
31
IN OUT
U1
.1uF
C11
100uF
C10
.1uF
C13
FROM PWR TRANSFORMER
3300uF
C6
100uF
C9
D8
D9
D7
D10
-15V
+15V
J8:4
J8:5
2
FROM BACKUP PS
2
+VBU
GND
2
31
IN OUT
U3
100uF
C8
.1uF
C12
+5V
3300uF
C4
J8:1
2
PWR
RELAY
POWER RLY
J1
J2
J3
.047uF
C2
D4
D5
D3
D6
1
1
BRN
BRN
J4
J7
+VBU
1.1A
t
R3
1.1A
t
R2
.47uF
C1
221k
R4
22.1k
R5
31
2
Q1
31
2
Q2
D2
D1
221k
R6
AC DETECT
+5V
1
1
ORN
ORN
J5
J6
1 2
HS3
1 2
HS1
1 2
HS2
10uF
C7

McIntosh MA7000 Specifications

General

Amplifier class	-
Frequency range	20 - 20000 Hz
Audio output channels	2.0 channels
Peak power per channel	250 W
Signal-to-Noise Ratio (SNR)	115 dB
Total Harmonic Distortion (THD)	0.005 %
XLR in	Yes
Purpose	Home
Product color	Black
Connectivity technology	Wired
AC input voltage	120 V
AC input frequency	50 - 60 Hz

Weight and Dimensions

Depth	558.8 mm
Width	444.5 mm
Height	239.7 mm
Weight	44300 g