NAD C 315BEE - Standby and Key Circuit Schematics (3;3)

PHONE5
MP IN
C508
100pF
C509
100pF
1
2
3
CZ54
MP Input
S502 S503 S505S501 S506S504
D504 D505 D507D503 D506 D508
R509
10K
R510
10K
DISCTAPE AUX CDVIDEOTUNER
D502
MP
+5V
TAPE VIDEOAUXTUNER CD DISC/MP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CZ53
+5V
R519
510
C502
0.1uF
+5V
IC503
HS0038B4
V
S
G
C510
0.1uF
IR receiver
C504
27P
C505
27P
X501
11.0592MHz
R508
10K
Remote Mute
Volume+
Volume-
NC
1
NC
2
NC
3
Vss
4
SDA
5
SCL
6
NC
7
Vcc
8
IC502
24C01
C506
0.1uF
R507
10K
R502
10K
+5V
P1.0
1
RST
9
RXD/P3.0
10
TXD/P3.1
11
INT0/P3.2
12
INT1/P3.3
13
T0/P3.4
14
T1/P3.5
15
WR/P3.6
16
RD/P3.7
17
XTAL2
18
XTAL1
19
VSS
20
P2.0/A8
21
P2.1/A9
22
P2.2/A10
23
P2.3/A11
24
P2.4/A12
25
P2.5/A13
26
P2.6/A14
27
P2.7/A15
28
PSEN
29
ALE
30
EA
31
P0.7/AD7
32
P0.6/AD6
33
P0.5/AD5
34
P0.4/AD4
35
P0.3/AD3
36
P0.2/AD2
37
P0.1/AD1
38
P0.0/AD0
39
VDD
40
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
IC501
W78E52C
Record Mute
Q119
2SA1015
R186
100K
-18V
R184
10K
R185
10K
+5V
R306
1K
R301
10K
R303
10K
R302
1K
R304
1K
R305
1K
C302
4u7/25V
C303
4u7/25V
Q303
C1815
Q301
A1015
Q304
C1815
Q302
A1015
+5V
C304
220p
C305
220p
C301
10uF
C507
0.1uF
+5V
+5V
Q219
2SA1015
R286
100K
-18V
R284
10K
R285
10K
+5V
R501
10K
+5V
C501
10uF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CB53
Inputs Selection
+5V
R513
10K
R503
10K
Q501
2SC1815
R505
47K
+5V
R504
100K
R514
10K
R515
10K
R516
10K
R517
2K2
Q502
C1815
S507
TACT SWITCH
C511
0.1uF
Remote mute
Record mute
Volume-
Volume+
Remote Mute
Record Mute
Protection
Standby
IP SEL STB IP SEL CLK IP SEL DATA GND +5V
Name
C315BEE Main Board
IR IN
Volume-
Volume+
Standby
Standby Protection
Protection
+5V
D509
1N4148
L51
100uH
D114
1N4148
D214
1N4148
Main Board
C512
0.1uF
PCB-1:MAIN BOARD Vm1.0
MCU CONTROL CIRCUIT Vm1.0
STANDBY BOARD Vm1.2
PCB-6:KEY BOARD Vm2.0
KEY CIRCUIT Vm1.2
R522
100
R521
330
Q504
DTC114
Q503
DTC114
R524
100
1
1
3
3
4
4
2
2
D501
3LED
Blue
Red
Amber
Q506
DTC114
Q505
DTC114
Q508
DTC114
+5V
1 2 3 4 5
CB52
1 2 3 4 5
CZ52
STANDBY
+5V
R511
470
R512
470
Q507
DTA114
HS4_C315BEE_B007_Vm1.0_KEY.SCH
C315BEE
3 / 3
Vm
DESCRIPTION
Date APPRO
NAD
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF NAD
ELECTRONICS INTL.. ANY REPRODUCTION IN PART OF WHOLE WITHOUT THE WRITT EN
PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
Document
Number:
Sheet:
State:
Project:
Drafted
PL Checked
PTA Checked
Approved
by: by: by: by:
Date: Date: Date: Date:
Change LEDs to Blue, change software version from V4.0 to V5.0
1. Change R519 from 510 ohm to 620 ohm (Input LED).
2. Change R522 from 100 ohm to 220 ohm (Power blue LED).
3. Change R521 from 330 ohm to 470 ohm (Power amber LED).
4. Change R524 from 100 ohm to 330 ohm (Power red LED).
03-08951-23 blue
LED software
PART # 01-31503-22
PART # 01-31505-22
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