Block Diagram - NAD CI 940 Service Manual

Protection circuit
12V
TRIGGER IN
To MCU
Input L
Zone 1 IN
Input R
Cascade
Output L
Zone 1 OUT
FOUR CHANNELS SEPERATED POWER AMPLIFIERS
Cascade
Output R
Input L
Zone 2 IN
Input R
Cascade
Output L
Zone 2 OUT
Cascade
Output R
AC PLUG IN

BLOCK DIAGRAM

Fan Contril Circuit
To MCU
Audio sense circuit
5V/1A Standy circuit
meet 0.5W requirement Power Supply Board(SMPS)
LEDs Control circuit
MCU
S2
Relay
Relay
NAD CI940 BLOCK DIAGRAM
VERSION: V1.0
Drafted by: BEN
Data: 2014-2-25
7
+
ZONE 1
RIGHT
-
-
ZONE 1
LEFT
+
+
ZONE 2
RIGHT
-
-
ZONE 2
LEFT
+