McIntosh C2300 - Re-Title Inputs; Meter Illumination Control

19 20
MAIN 750761 SCH 6 OF 6
2F
1
1
NC
NC
NC
NC
NC
NC
NC
NC
T1
T1
T1
NC
NC
NC
NC
NC
6
4
5
3
2
1
10
15
14
12
9
8
7
T1
T1
T1
T1
T1
T1
FIL1
FIL2
BRN
GRN
GRN
BLU
BLU
RED
YEL
0V
238V
24V
5V
238V
15.6V
5V
0V
5V
0V
5V
5V
5V
5V
0V
5V
J1:9
J1:8
J1:7
J1:4
J1:3
J1:2
NC
NC
NC
T1
NC
T1
T1
NC
11
13
T1
T1
T1
RED
9.7V
.6V
5V
236V
5V
5V
5V
0V
5V
5V
5V
0V
0V
J1:5
J1:6
J1:1
TO DIS PLAY
TO TUB E
TO DAT A PCB
AC
N
120V B
20V B
0V B
100V A
0V A
20V B
0V B
120V A
120V B
20V B
120V A
100V A
0V A
20V B
0V B
120V A
POWER
TRANSFORMER
D16
D15
D17
312V
312V
33V
-33V
-33V
NEGATIVE 24 VOLT
REGULATOR
237V
237V
332
R158
15V
POSITIVE 15 VOLT
.1uF
C105
REGULATOR
-15V
POSITIVE 24 VOLT
REGULATOR
236V
236V
236V
236V
236V
236V
236V
236V
3A J6:12
3A J5:11
3A J5:10
3A J5:7
3A J5:6
3A J5:5
3A J5:4
3A J5:1
EXTERNAL
EXT. DATA BUFFER
TUBE WARMUP
EXT IR DATA
15V
GND
GND
5V
5V
DATA
PASSTHRU
SCLK
595CS
VOLCK
IR MUTE
CONTROL
EX DATA
595CS
-24V
SCLK
FIL1-24V
TONE CS
GND
GND
6 J10:18
6 J10:17
6 J10:15
6 J10:14
6 J10:13
6 J10:12
6 J10:10
6 J10:9
6 J10:8
6 J10:7
6 J10:5
6 J10:4
6 J10:3
6 J10:2
3A J1:18
3A J1:17
3A J1:14
3A J1:13
3A J1:12
3A
3A
3A
3A
3A
3A
AC
L
120V A
120V B
0V A
100V A
0V B
120V B
0V A
100V A
PRIMARY
T1
BRN
5.2 VAC
SEC 3
D14
T125mAL
F1
.047uF
C92
2 1
3
Q47
D22
D21
D19
4700u F
C95
.047uF
C94
5V
475
R145
47uF
C100
100k 2w
R144
47uF
C96
.1uF
C99
2200u F
C98
2200u F
C97
33V
.1uF
C102
1.5k
R160
2 3
1
Q50
.1uF
C106
REGULATOR
NEGATIVE 15 VOLT
332
R157
.1uF
C104
365
R156
-24V
.1uF
C103
365
R155
200k
R162
20K
R164
15
R161
10uF
C110
10uF
C109
220uF
C108
10
R163
236V
236V
236V
236V
3A J5:8
3A J5:9
3A J5:2
3A J5:3
D27
100k
R168
DRIVER
SENSOR 5-8V
BUFFER
1k
R169
0V
SQH1
VOLCS
VOL DATA
SDATA
TUBE ON
FIL2
5V
5V
-24V
6 J10:16
6 J10:11
6 J10:6
6 J10:1
3A
3A
J1:15
J1:16
3A
3A
J1:10
J1:11
3A
3A
3A
1 6
4
32
5
K25
D18
D20
1M
R159
3
21
Q51
3 1
2
Q52
1k
R170
J29:5
J28:2
J27:4
J26:1
J26:2
J26:6
J15
SEC 4
J30:8
POSITIVE 5 VOLT
SEC 1
J30:2
J30:1
100k
R154
J33:1
IR MUTE
CONTROL
IR MUTE
J33:5
J33:6
J33:10
J33:11
PC SPKR2
PC SPKR1
J33:15
J33:16
J32:1
J32:6
VFD -30V
J32:11
J32:16
J29:4
J29:1
J29:2
J29:3
J28:1
J29:6
J28:6
J28:4
J28:5
110-120 VAC
50/60Hz 75W
J27:3
J27:5
J27:2
J26:3
J26:4
J30:4
J30:5
SEC 2
J30:9
.047uF
C93
REGULATOR
J30:6
2
31
IN OUT
U16
J30:3
D26
D23
D25
RELAY DRIVER
12
13
11
U21:4
33.2k
R167
200k
R166
267k
R165
1.82k
R153
10uF
C101
3 2
1
IN OUT
U20
1.82k
R150
3
1
2
IN OUT
U19
3.32k
R148
3 2
1
IN OUT
U18
3.32k
R146
3.32k
R147
220uF
C107
9
10
8
U21:3
4
5
6
U21:2
J33:3
J33:2
CONTROL
J33:8
J33:7
POWERON
POWERON
J33:12
J33:13
J33:18
J33:17
J32:5
J32:3
J32:4
J32:10
J32:9
J32:8
J32:15
J32:13
J32:14
J32:18
J28:3
J27:1
J27:6
J24 J26:5
31
2
Q48
J30:7
D24
1.82k
R151
1.82k
R152
2 3
1
Q49
3.32k
R149
3
1
2
IN OUT
U17
1
2
3
147
B+
GND
U21:1
J33:9
J33:4
IR TO
DATA PORTS
J32:2
J32:7
J33:14
J32:12
J32:17
J31:1
J31:7
J31:8
J31:2
J31:6
J31:4
J31:5
J31:12
J31:9
J31:11
J31:10
J31:3
595CS
595CS
PASSTHRU
FIL1
FIL1
FIL2
FIL2
DP_DATA
DP_DATA
PC_SPKR1
PC_SPKR2
POWERON
POWERON
SCLK
SCLK
SDATA
SQH1
RelaySW
VOL_CLK
VOL_CS
VOL_DATA
5V
5V
ACC_ON
ACC
TUBE_ON
5V
5V
5V
-24V2
-24V
-15V
15V
236V
24V
VF-24V
236V
15V
VF-24V
15V
PASSTHRU
TONE_CS
1 6
4
32
5
K29
-24V2 RelaySW
D28
D29
220uF
C88
1.1k
R244
1.1k
R245
-24V2
.3A
t
R247
3.0A
t
R248
PASSTHRU
5V
TO U2 PIN17
Ext_Lamp_Control
9.7V
9.7V
100 VAC
50/60Hz 75W
220 VAC
50/60Hz 75W
230/240 VAC
50/60Hz 75W
5V
5V
5V
5V
0V
5V
236V
164V