NAD C521i, Service Manual

Page: 17 / 33

21
10
1 2 3
4 5 6 7 8 9
M500
1
2
3 4
M810 TLN120A150W3R0
AC1 AC CORDEST
FERRITE RING * ONLY IN C VERSION
M802
POWER_SW
C800
4700p
J800 230V
J801 120V
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
C529
4700u/16V
C528 104K
DGND
C532 104K
C508
1000u/10V
C533
470u/10V
Vin
GND
Vout
1
2
3
U501 7805
C511 220u/10V
C710 100u/6.3V
D+5V
D+8V
M512
T1A 250V
M502 T1.6A 250V
Vin
GND
Vout
1
2
3
U504 7809
C518
100u/25V
C521 104K
EL_GND
D506 1N4001
R709 470R
Q520 8050
R520 51K
C523 2u2/16V
C524 0.022u
R521 150R
C522 100u/16V
ELD1
C502
104K
C503
104K
D501
1N4001
D502
1N4001
C506 2200u/25V
Vin
GND
Vout
1
2
3
U502 7812
C504
104K
D504
1N4001
D503
1N4001
C505
104K
C507 2200u/25V
C526 104K
C512
1000u/16V
C513 1000u/16V
C525 1000u/10V
C535 104K
C534 104K
D505 3V3 1.3W
Vin
GND
Vout
1
2
3
U503 7912
M503
T1A 250V
AGND
M504
T1A 250V
AGND
A+12V
A-12V
Vin
GND
Vout
1
2
3
U506 7805
C527 470u/10V
A+5V
AGND
AGND
6 9
4
2
M501
D+10V
DGND
RL101A Relay
2
4
Q312 8550
+9V-IN
R346
10K
R347 1K
+9V-OUT
Q313
8550
R502 18K
+9V-OUT
+9V-IN
C537 104K
R501 27K
C531 104K
C530
10u/25V
D507 IN4001
D508
1N4001
A1 A2
13
A2
A1
D513
1N5393
POWER
NOTE:
1. RESIST
ORS,
ARE CARBON FILM 5% 1/8W UNLESS
OTHER
WISE SPECIFIED.
2. CERAMIC CAP
ACIT
ORS,
ARE 50V 10%. UNLESS
OTHER
WISE SPECIFIED.
3. COMPONENTS MARKED “
”
ARE SAFETY
CRITI-
CAL
P
A
R
TS.