NAD C 315BEE Service Manual page 15

SCHEMATICS DIAGRAM (2/3)
MCU CONTROL CIRCUIT Vm1.0
PCB-1:MAIN BOARD Vm1.0
Name
C315BEE Main Board
Volume-
Volume+
Remote Mute
Record Mute
Protection
Standby
R517
2K2 R503
10K
R514
10K
Q502 R515
10K
C1815
R516
10K
+5V
1
2
+5V 3
Volume- 4
Volume+ 5
Remote Mute 6
D509 C501 Record Mute 7
10uF
1N4148 Protection 8
9
10
R501
11
10K IR IN 12
13
14
IC502 Standby 15
4 5 16
Vss SDA
3 6 17
NC SCL
2 7 +5V 18
NC NC
1 8 19
NC Vcc
C511
20
C506 0.1uF
24C01
0.1uF
C504 X501 C505
27P 11.0592MHz 27P
All manuals and user guides at all-guides.com
Main Board
R184
+5V
10K
+5V
R185
10K
R186
-18V
R505
100K
10K
Q501
R284
2SC1815
+5V
10K
R285
Q219
2SA1015
R50410K 10K
R286
-18V
100K
+5V
R512 R511 R508 R507
470 470 10K 10K
+5V
03-08951-13 green
R513
C507
LED software 10K
0.1uF
IC501 L51
W78E52C 100uH
40
P1.0 VDD
39
P1.1 P0.0/AD0
38
P1.2 P0.1/AD1
37
P1.3 P0.2/AD2
36
P1.4 P0.3/AD3
35
P1.5 P0.4/AD4
34
P1.6 P0.5/AD5
33
P1.7 P0.6/AD6
32
RST P0.7/AD7
31
RXD/P3.0 EA
30
TXD/P3.1 ALE
29
INT0/P3.2 PSEN
28
INT1/P3.3 P2.7/A15
27
T0/P3.4 P2.6/A14
26
T1/P3.5 P2.5/A13
25
WR/P3.6 P2.4/A12
24
RD/P3.7 P2.3/A11
23
XTAL2 P2.2/A10
22
XTAL1 P2.1/A9
21
VSS P2.0/A8
C512
0.1uF
+5V
R301 R303
C301 10K 10K
10uF Q302
Q301 A1015
A1015
C302 C303
4u7/25V 4u7/25V
KEY CIRCUIT Vm1.0
PCB-6:KEY BOARD Vm1.0
R302 R304
PART #01-31503-00
1K 1K
Q303 Q304
C1815
C1815
C304 C305
220p 220p
S
R502 G V
10K IC503
HS0038B4
IR receiver
CB53 CZ53
19 19 D503
18 18
TAPE
17 17
+5V 16 16 +5V
15 15
14 14
13 13
12 12
11 11
10 10
9 9
8 8
7 7
6 6
5 5
S501
4 4
TAPE
3 3
2 2
1 1
Inputs Selection
DESCRIPTION
Add C510,C511,C512
STANDBY CIRCUIT Vm1.0
PART # 01-31505-00
PCB-4: STANDBY BOARD Vm1.0
D501 GREEN
RED
CZ52
CB52
+5V
C508 C509
C502
100pF 100pF
MP IN
0.1uF
PHONE5
R519
150
D504 D505 D506 D507 D508
TUNER AUX VIDEO CD DISC
S502 S503 S504 S505 S506
TUNER AUX VIDEO CD DISC/MP
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 WRITTEN
PERMISSION OF NAD ELECTRONICS INTL. IS PROHIBITED
Document
HS4_C315BEE_B007_Vm1.0_KEY.SCH
Number:
C315BEE
Project:
Drafted PL Checked PTA Checked
by: by: by:
Date: Date: Date:
C510
0.1uF
CZ54
3
2
1
MP Input
+5V
R510 R509
10K 10K
D502
MP
3 / 3
Sheet:
Vm
State:
Approved
by:
Date: