McIntosh C50 - Operating the C50 with Remote Control; Basic Remote Functions; Advanced Remote Operations

C50
17 18
DISPLAY 751113 SCH 4 of 4
2
MUTE
OUT1 OUT2
Standby/On/Reset
3
2
1
+
-
84
B+
B-
U1:1
5
6
7
+
-
U1:2
3
1
2
Q5
10K
R58
22.1K
R51
ON Button +
100
R12
ON/RESET
LEFT PB AD
10uFC3
.1UF
C4
Vout LT
Vout LT
ADC-VREF-L
10KR55
10K
R46
10K
R53
BYPASS
PROC
TRIM
MH3
3.3V BU
Left Pushbutton A/D Buffer
To Right Pushbutton PCB
To Left Pushbutton PCB
SPARK GND-L
2 2 2 2 2 2 2 2 2
J2:1
J2:5
J2:3
J2:4
J2:6
J2:2
J2:10
J2:7
J2:12 J2:11
J2:8
J2:9
2 2 2
1A 1B 2A 2B
Spark Ground
Spark Ground
4A 3B
2
4B
Spark Ground
Spark Ground
Vout RT
ADC-VREF-R
10KR57 10KR13 10KR47 10KR7
SPARK GND-R
2 2 2 2 2 2 2 2 2
J3:1
J3:5
J3:3
J3:4
J3:6
J3:2
J3:10
J3:7
J3:12
J3:11
J3:8
J3:9
2 2 2
1A 1B 2A 2B
Spark Ground
Spark Ground
4A 3B
2
4B
Spark Ground
Spark Ground
1A
.1UF
C50
MUTE OUT 1
Right Pushbutton PCB
2 2 2 2 2 2 2 2
S8S7S5 S6
2
J10:4
J10:5
J10:2
J10:1
J10:6
J10:3
J10:11
J10:7 J10:9
J10:10
J10:8
J10:12
2 2 2
1A 1B 2A 2B
Spark Ground
Spark Ground
SG12
SG11
SG10
SG9
4A 3B
2
4B
SG14
SG13
SG16 SG15
OUT 2 STANDBY
Spark Ground
Spark Ground
PB SPARK GND-R
PROC
Left Pushbutton PCB
2 2 2 2 2 2 2 2
S4S3S2
2
J6:4
J6:5
J6:2
J6:1 J6:6
J6:3
J6:11
J6:7
J6:9
J6:10
J6:8
J6:12
2 2 2
1A 1B 2A 2B
Spark Ground
Spark Ground
SG4
SG3
4A 3B
2
4B
SG6 SG5
SG8
SG7
EQ BYPASS TRIM
Spark Ground
Spark Ground
PB SPARK GND-L
133714
ON SEMI
3
2
1
+
-
8
4
B+
B-
U3:1
5
6
7
+
-
U3:2
RIGHT PB AD
10uFC58
.1UF
C57
Vout RT
3.3V
Right Pushbutton A/D Buffer
.1UF
C55
3.3V
22.1
R65
D1
SPARK GND-R
22.1
R64
MH10
153462107121189
15 34 62 107
12
11 89 15 34 62 107
12
11 89
153462107121189
22.1
R66
22.1
R67
0V = Standby/On
1.6V = Out2
2.2V = Out1
2.5V = Mute
0V = Trim
1.6V = Bypass
2.2V = Proc
3.3V = Open
2.5V = Not used
3.3V = Open
Vout RT Levels
Vout LT Levels
0V
3.3V
0V
3.26V
3.25V
3.3V
3.25V
0V
0V
0V
0V
3.26V
3.3V
3.3V
3.3V
0V
0V
0V
0V