NAD C 315BEE Service Manual page 16

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
Q502 R515
10K
C1815
R516
10K
+5V
+5V
Volume-
Volume+
Remote Mute
D509 C501 Record Mute
1N4148 10uF Protection
R501
10K
IR IN
IC502 Standby
4 5
Vss SDA
3 6
NC SCL
2 7 +5V
NC NC
1 8
NC Vcc
C511
C506 0.1uF
24C01
0.1uF
C504 X501
27P 11.0592MHz
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R184
+5V
10K
+5V
R185
10K
R503
R186
10K
-18V
R514 R505
100K
10K 47K
Q501
R284
2SC1815
+5V
10K
R285
Q219
2SA1015
R504 100K
10K
R286
-18V
100K
R512
470
+5V
03-08951-23 blue
C507 R513
LED software
0.1uF 10K
IC501
L51
W78E52C
100uH
1 40
P1.0 VDD
2 39
P1.1 P0.0/AD0
3 38
P1.2 P0.1/AD1
4 37
P1.3 P0.2/AD2
5 36
P1.4 P0.3/AD3
6 35
P1.5 P0.4/AD4
7 34
P1.6 P0.5/AD5
8 33
P1.7 P0.6/AD6
9 32
RST P0.7/AD7
10 31
RXD/P3.0 EA
11 30
TXD/P3.1 ALE
12 29
INT0/P3.2 PSEN
13 28
INT1/P3.3 P2.7/A15
14 27
T0/P3.4 P2.6/A14
15 26
T1/P3.5 P2.5/A13
16 25
WR/P3.6 P2.4/A12
17 24
RD/P3.7 P2.3/A11
18 23
XTAL2 P2.2/A10
19 22
XTAL1 P2.1/A9
20 21
VSS P2.0/A8
C505
27P
Main Board
R301
C301 10K
10uF Q302
Q301
A1015
A1015
C302 C303
4u7/25V 4u7/25V
R302
1K
Q304
Q303
C1815
C1815
C304 C305
220p 220p
+5V
R511 R508 R507 R502
470 10K 10K
10K
CB53 CZ53
19 19
18 18
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
4 4
3 3
2 2
1 1
C512
Inputs Selection
0.1uF
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).
D501
3LED
Red
Blue Amber
R522
100
Q507
DTA114
+5V
Q508
DTC114
R303
10K
KEY CIRCUIT Vm1.2
PCB-6:KEY BOARD Vm2.0
R304
PART # 01-31503-22
1K
+5V
S
G V
C502
IC503
HS0038B4
MP IN
0.1uF
IR receiver PHONE5
D503 D504 D505 D506
TAPE TUNER AUX VIDEO
S501 S502 S503 S504
TAPE TUNER AUX VIDEO
DESCRIPTION
Date APPRO
STANDBY BOARD Vm1.2
+5V
PART # 01-31505-22
R521 R524
330 100
Q505 Q503
DTC114
DTC114
Q506 Q504
DTC114 DTC114
S507
TACT SWITCH
CZ52
CB52
+5V
CZ54
3
2
1
MP Input
C508 C509
100pF 100pF
+5V
R519 R510 R509
510 10K 10K
D507 D508 D502
CD DISC MP
S505 S506 C510
CD DISC/MP
0.1uF
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
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Sheet:
HS4_C315BEE_B007_Vm1.0_KEY.SCH
Number:
C315BEE Vm
State:
Project:
Approved
Drafted PL Checked PTA Checked
by: by: by: by:
Date: Date: Date: Date: