McIntosh MP1100 Service Manual page 11

2 RIGHT AUDIO
751909 SCH 5 of 5
R I2C CL J1:18
5 I2C CL
R I2C DA
J1:17
I2C DA
5
DGN D
J1:16
5 D GN D
+3. 3VBU
J1:15
5 +3.3V BU
+5V
J1:13
5 +5V
J1:14
GN D J1:11
5 D GN D
J1:12
+17VR
J1:9
5 +17V
J1:10
-17VR
J1:7
5 -17V
J1:8
R AU D DET
J1:6
5 AUD DET
R M ET + J1:5
5 MET +
R M ET - J1:4
5 MET -
+5VAD C J1:3
5 +5V A D C
R AD C +
J1:2
ADC +
5
R AD C -
J1:1
5 ADC -
+4V +4V
10k
10k
2 2
10k 10k
+4V +4V
10k 10k
2 2
10k 10k
+5V
R1
3.32k
1
Q2 Q7
+3.3V BU
I2C CL
I2C DA
1
Q3
C1
OPEN
6-32
C2 C144
OPEN OPEN
1
Q6
6-32
17
MP1100
+3.3V BU
U2
1
A0 VDD
2
A1 SDA
3
A2 SC L
4
Q0 NC
5
Q1 Q7
6
Q2 Q6
7
Q3 Q5
8
VSS Q4
A = 1 0 1 (5)
+4V +4V
+3.3V BU
10k 10k
2 2
C4
10k 10k .1µF
+3.3V BU
U3
1
A0 VDD
2
A1 SDA
3
A2 SCL
4
Q0 NC
5
Q1 Q7
6
Q2 Q6
7
Q3 Q5
8
VSS Q4
A = 1 1 0 (6)
+4V +4V
+3.3V BU
10k
10k
2 2
10k
10k
+5V
+5V +3.3V BU
U4
1
R5 A0 VDD
3.32k R234 2
A1 SDA
10k 3
A2 SCL
4
Q0 NC
5
Q1 Q7
6
Q2 Q6
7
RIAA
Q3 Q5
8
VSS Q4
1
A = 1 1 1 (7)
Q89
1
+3.3V BU
+3.3V BU
+3.3V BU
R4 R6
2k 2k U1
1 16
SC L VD D
2 15
SD A RST
3 14
A0 IO7
4 13
A1 IO6
5 12
A2 IO5
6 11
IO0 IO4
7 10
IO1 IO3
8 9
VSS IO2
R9
A = 1 0 1 (5)
3.32k
R7
3.32k
+3.3V BU
Q12
1
PH 3
+3.3V BU
Q90
1
16
15
I2C DA
PH 2
14
I2C CL
13
Q91
12
11 1
10
9
PH 1
+4V
Q92
1
10k
2
10k
+3.3V BU
16
15
I2C DA
14
I2C CL
13
12
11
10
9
+4V +4V
10k 10k
10k
2 2 2
Q15 Q17
10k 10k 10k
+3.3V BU
16
15
I2C DA
14
I2C CL
13
12
78
11
AES
10
NAB / LP
9
LP
R10
3.32k
Q13 Q18
1 1 1
Q16
18
R12
100
+5V +4V
R13
100
C7
470µF
+4V +4V
10k
2
Q19 Q21
10k
+3.3V BU
R235
4.75k
Q22
1
1
Q20