NAD C275BEEC/AH, Руководство по обслуживанию, Страница: 9 / 36

TRIG ENABLE
PROTECT
RED
AMBER
SIGNAL
BLUE DGND
DGND
+15V
AGND
THERMAL PROT
SC LED
BG LED
+5V
+15V
AGND
MUTE
TRIGGER
SEN DEFEAT
STBY
+5.6V
ON/OFF
+5V
+5V
+15V
+5V
+5V
+15V
+5V
+5V
+5V
+15V
+5V
+5V +5V
All Polyester capacitors are 63V 5% unless noted.
All Elec. capacitors are 50V 20% unless noted.
All Resistor are 1/6W 5% RJ13 unless noted.
T
O
M
AIN BO
ARD
T
O
S
T
ANDBY
BO
ARD
/10V
Trigger Enable
Signal Enable
Switch Enable
Q905
DTC114ESA
Q905
DTC114ESA
Q907
DTC114ESA
Q907
DTC114ESA
IC902A
CD4011BCN
IC902A
CD4011BCN
1
2
3
14
7
R917
1K
R917
1K
R915
4.7K
R915
4.7K
G901
GND-8
G901
GND-8
1
D906
N.I.
D906
N.I.
Q
902
D
T
A1
1
4
ESA
Q
902
D
T
A1
1
4
ESA
R903
130
R903
130
D902
SC LED
D902
SC LED
D901
BL-BUBJFB52C4V-1
D901
BL-BUBJFB52C4V-1
2
1
3
4
R904
130
R904
130
C904
100nF
C904
100nF
R908
10K
R908
10K
D908
4.7V
D908
4.7V
D909
1N4007
D909
1N4007
D910
1N4148
D910
1N4148
D911
3.3V D911
3.3V
D905
N.I.
D905
N.I.
R912
N.I.
R912
N.I.
+
C901
1uF
+
C901
1uF
Q906
DTC114ESA
Q906
DTC114ESA
IC901
EM78P153SP/S/J
IC901
EM78P153SP/S/J
P50
1
P67
2
P66
3
Vdd
4
P65/OSCI
5
P64/OSCO
6
P63/RST
7
P62/TCC
8
P61
9
P60/INT
10
Vss
11
P53
12
P52
13
P51
14
R902
130
R902
130
D914
1N4148
D914
1N4148
+
C902
1000uF
+
C902
1000uF
IC902D
CD4011BCN
IC902D
CD4011BCN
12
13
11
14
7
R918
100K R918
100K
R914
1K
R914
1K
D904
N.I.
D904
N.I.
R911
N.I.
R911
N.I.
R901
10K
R901
10K
R919
33K
R919
33K
Q909
2SD667
Q909
2SD667
R913
10K
R913
10K
Q
903
D
T
A1
1
4
ESA
Q
903
D
T
A1
1
4
ESA
IC902C
CD4011BCN
IC902C
CD4011BCN
8
9
10
14
7
IC902B
CD4011BCN
IC902B
CD4011BCN
5
6
4
14
7
R906
750
R906
750
S
901
PU
SH
BU
T
T
O
N
S
901
PU
SH
BU
T
T
O
N
1
2
Q910
2SA1015
Q910
2SA1015
R916
1K
R916
1K
R909
N.I.
R909
N.I.
P902A
12PIN2.54-A200B
P902A
12PIN2.54-A200B
2
3
4
1
5
6
7
8
9
10
11
12
Q
901
D
T
A1
1
4
ESA
Q
901
D
T
A1
1
4
ESA
D903
BG LED
D903
BG LED
D907
4.7V
D907
4.7V
R905
10K
R905
10K
P901A
6PIN2.54-A200B
P901A
6PIN2.54-A200B
2
3
4
1
5
6
D913
1N4148
D913
1N4148
Q904
2SC1815
Q904
2SC1815
D912
1N4148
D912
1N4148
C903
10nF C903
10nF
Q908
DTC114ESA
Q908
DTC114ESA
C905
100nF
C905
100nF
R907
150
R907
150
R910
100
R910
100
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SCHEMATICS DIAGRAM