NAD C 325BEE Service Manual page 18

SCHEMATICS DIAGRAM(4/4)
C325BEE IR BOARD Vm1.0
PCB-11:IR BOARD Vm1.0
P9
CB72
CZ76
3
IC72
VCC
2
IR RECEIVER R73 10K
3
1
IS1U60L
GND C71
1
2 CON3 100u/16V
SIGNAL
SHIELDING
C325BEE STANDBY BOARD Vm1.0
PCB-8:STANDBY BOARD Vm1.0
S78 STANDBY
D710
POWER/PROTECTION IND.
+5V
RED GREEN
D717 1N4148
D711
513AW
1N4148
CZ73
+5V
1 2 3 4 5
D712
1N4148
1 2 3 4 5
CB73
D713
0.1u 20%
1N4148
D715 IC75
1N4148 4094
R71 R72
330 470
D718
1N4148
+5V
IR BLINK
+12V
Q74
MUTING BLINK
C1815
R701
R730
2K2 15K
Q72 Q73
C1815 C1815
R766
4.7K
KEY BOARD Vm1.2
PCB-3:KEY BOARD Vm1.0
+5V
+5V
2
C78
C72
C77 R708 R765 0.1u
0.1uF
10n 10K N.I.
IC71 IC73
1 8
NC Vcc
2 7 1
NC NC RST/VPP VCC
3 6 2
NC SCL P3.0(RXD) P1.7
4 5 3
Vss SDA P3.1(TXD) P1.6
4
XTAL2 P1.5
24C01 5
XTAL1 P1.4
6
P3.2(INTO) P1.2
7
P3.3(INT1) P1.2
8
P3.4 (AIN1)P1.1
C722 9
P3.5 (AIN0)P1.0
N.I. 10
GND P3.7
Y71
AT89C4051
C79 C710
27p 27p
+5V
C712
C711 0.1u 20%
IC74
4094
VIDEO
C714
10n
R741
4K7
R748 R749
4K7 4K7
Q716 R733
C1815 5K1
+5V
C724 C725
N.I. N.I.
R763
10K
S76 S73
20
TAPE2
VIDEO
19
18 P22
17 P21 S77 S75 S72
16 P20
15
CD DISC TUNER
14 P02
13 P01
12 P00 S74 S71
11
TAPE1
AUX
R758 R757 R756
+12V
10K 10K 10K
+5V
D714
1N4148
R727
2K2
D73 D71 D76 D72 D74 D77
VIDEO AUX TAPE2 TUNER TAPE1 CD
GREEN GREEN GREEN GREEN GREEN
GREEN
AUX TAPE2 TUNER DISC CD
C715 C716 C717 C718 C719
Q79 10n Q710 10n Q711 10n Q712 10n Q713 10n Q714
C1815 C1815 C1815 C1815 C1815 C1815
R742 R743 R744 R745 R746
4K7 4K7 4K7 4K7 4K7
R750 R751 R752 R753 R754
4K7 4K7 4K7 4K7 4K7
18
IPOD BAORD Vm1.0
PCB-9:IPOD BOARD Vm1.0
Ipod GREEN
D719
TP701
C758 C759 C760
PHONE71
Ipod IN 100p 100p 0.1uF
L
R G
CZ75 CZ74
CB74
TO MAIN BOARD CB35
+5V
R762 R703
10K 2K2
R702
Q717
2SC1815
10K
R764
10K
R726
R759 R725
TAPE1
2K2 2k2 2K2
DISC
TAPE2
TUNER
D75 D716 AUX
DISC GREEN VIDEO
CD
AMBER
+12V
IR OUT
TAPE1 IR IN
C720 C721
CZ76
10n Q715 10nF Q718
TO CB31
C1815 C1815
R747 R760
4K7 4k7
R761
4K7
SOFT CLIPING
REMOTE MUTE
PROTECTION
+5V +12V
+5V
VOL-
VOL+
C723
100uF/16V IPOD
CZ71
TO CB34
1
2
3
4
5
6
7
8
9
10
9
8
7
6
5
4
3
2
1
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