NAD C 542, Service Manual

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9
10 11
M502
TRANSFORMER TOROID
M507 T1.6A 250V M514 T315mA 250V M512 T1A 250V M513 T1A 250V
J800 120V J801 230V
AC1 CORDEST
1
2
3 4
M810 TLN120A150W3R0
M802
POWER_SW
C800 4700p
FERRITE RING ONLY IN C VERSION
D514 IN4001
D516 IN4001
C543 104K
C541 104K
C501 104K
D515 1N4001
D517 1N4001
C542 104K
C540 104K
Vin
GND
Vout
1
2
3
U507 7808
DGND
C713 0.022u
F1 F2
C529
3300u/16V
C528 104K
DGND
C525 104K
C508 470u/10V
C533 1000u/10V
Vin
GND
Vout
1
2
3
U501 7805
C511 470u/10V
C710 100u/6.3V
D+5V
D+8V
DGND
C560 100u/25V
D508
1N4001
D507
1N4001
C561
100u/16V
D506 1N4001
C510 22u/35V
R520 470R
Q502
2SA950Y
C521
3u3/50V
D510 22V 1/2W
C522 3u3/50V
D511
5V6 1/2W
R523 47K
R518 470R
R517 470R
F2 F1 -22V
C502
104K
C503
104K
D501
1N5818
D502
1N5818
C506
1000u/25V
Vin
GND
Vout
1
2
3
U502 LM317T
C545 104K
DGND
C505
104K
D504
1N5818
D503
1N5818
C504
104K
C507
1000u/25V
C546 104K
R503 2K2
R504 2K2
R501 240R
C539 10nF
C544 10nF
C537 10u/25V
C538 10u/25V
R502 240R
C513 10u/25V
C512 10u/25V
AGND
C535 104K C534 104K
A+12V
A-12V
Vin
GND
Vout
1
2
3
U506 7805
D505 3V3 1.3W
C527 1000u/10V
A+5V
C526 104K
C525 470u/25V
AGND
AGND
(A)
(A)
(A)
(A)
(A)
(A)
(A)
Vin
GND
Vout
1
2
3
U503 LM337T
(A)
D512 1N4001
K501ARELAY
K501BRELAY
K502A RELAY
K502B RELAY
C513 104K
R510 1K2
C514 104K
P OWE R
N
O
T
E
:
1
.
R
E
S
IS
T
O
R
S
, A
R
E
C
A
R
B
O
N
F
IL
M
5
%
1
/8
W
U
N
L
E
S
S
O
T
H
E
R
W
IS
E
S
P
E
C
IF
IE
D
.
2
.
C
E
R
A
M
IC
C
A
P
A
C
IT
O
R
S
, A
R
E
5
0
V
1
0
%
.
U
N
L
E
S
S
O
T
H
E
R
W
IS
E
S
P
E
C
IF
IE
D
.