NAD C 725BEE, Service Manual

Page: 9 / 50

MODULE
KEY
PRO.
POWERAMP
LINEAR
+-46V
SWITCHING POWER
+5.
5
V
ISC TRIG
AC DET
CLIPPING
SOFT
POWERBOARD SECTION
SPEAKER B
SPEAKER A
LINEAR
+5.
5
V
RELAY
RELAY
RL12/2
RL12/1
MAINBOARD SECTION
KEYBOARD SECTION
UNIT P
R
O.
VFD
IP SEL
DEFEAT
MODULE
PREAMP
BALANCE
CB32
RT34
CONTROL
RT32&RT31
RL39
TONE
ISC
CIRCUIT
RT33
CONTROL
VOLUME
TONE
MCU
IC703
T
O
NE
DE
F
E
A
T
STANDBY
SPEAKER A
SPEAKER B
REC OUT
R
E
C
O
UT
SE
L
E
CT
S
WI
T
CH
IC
31
T
C
9
1
64
MAIN IN
PREOUT
RELAY R
L310
SUBOUT
2SK303
Q3
01
IN
P
U
T
S
E
LE
C
T
O
R
DISC
TUNE
MP
AUX
TAPE
CD
IC32
HCF4094
BLOCK DIAGRAM