McIntosh C49 - Page 5

C49
5 6
BLOCK DIAGRAM
MC
PREAMP
MC
RIAA
PREAMP
MM
RIAA
PREAMP
3
2
1
BAL 2
BAL 1
BAL
AMP
BAL
AMP
SOURCE SELECTOR
COAX
OPTICAL 2
USB
SPDIF
RECEIVER/
SOURCE
SELECTOR
USB
DECODER
DIGITAL TO ANALOG
CONVERTER
DIGITAL CONTROL
MICRO
INPUT
BUFFER
ELECTRONIC
VOLUME
CONTROL
PREAMP
OUTPUT
SELECTOR
-
+
BAL
AMP
-
+
BAL
AMP
FIXED
OUTPUTS
-
+
-
+
1
2
TONE
CONTROL
HEAD
PHONE
AMP
HEADPHONE
MICRO
CONTROLLER
INPUT
SELECTOR
VOLUME
SELECTOR
FRONT PANEL
PUSHBUTTON
VFD DISPLAY
4
3
2
1
2
1
MAIN
PASSTHRU
DATA
PORTS
POWER
CONTROL
RS232
CONTROL
MAIN
FUSE
POWER
RELAY
AC IN
50/60Hz
PHONO INPUTS
UNBALANCED
INPUTS
BALANCED
INPUTS
DIGITAL INPUTS
OPTICAL 1
3.3V
BACKUP
SUPPLY
POWER
TRANSFORMER
UNREGULAT ED
SUPPLY
UNREGULAT ED
SUPPLY
+5V
REGULAT OR
+3.3V
REGULAT OR
+5V DISPLAY
REGULAT OR
+15V
REGULAT OR
-15V
REGULAT OR
+13V
REGULAT OR
REAR
IR
PREAMP
FRONT
IR
MCT
BALANCED
RECEIVER
SAMPLE RATE
CONVERTER
PCM/DSD
SWITCHING