NAD C 521BEE, Service Manual

Page: 16 / 34

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VC
1
VCC
2
E
3
D
4
A
5
B
6
C
7
F
8
GND
9
LD
10
VR
11
PD
12
FCS+
13
TRK+
14
TRK-
15
FCS-
16
M102 16PIN
LD
1
PD
2
EQ_IN
3
AC_SUM
4
GND
5
A
6
B
7
C
8
D
9
E
10
F
11
SW
12
DVCC
13
DVC
14
RFAC
15
FE
16
FEI
17
TE
18
TE_BAL
19
CE
20
CEI
21
VCC
22
RFG
23
BST
24
VFC
25
RFC
26
VC
27
RFDCO
28
RFDCI
29
DC_OFST
30
U101 CXA2581
1
2
3
Q101 8550
R101
10
R102 0
R103
20
K
R104
20
K
R105 3K
R106
150K
R107 100K
R108 68K
R109
15
K
R110
3K
R111
4K
7
R112
5K
1
R113
5K1
R114 5K1
R115 1K8 R116
12
K
R117
12
K
R118
10K
R119
15
K
C101 0.1u
C102 0.1u
C103 0.1u
C105 100u/16V
C106
100u/16V
C107
100u/16V
C108 100u/16V
C109
100u/16V
VDD1
VC
VDD1
C110 100u/10V
VDD1
FE TE SE
SE TE FE RFAC
RW/ROM/LDOFF
RFDC
FCS- TRK-
TRK+
FCS+
FCS- FCS+ TRK+ TRK-
V3V6
RFDC RFAC
RW/ROM/LDOFF
1
2
3
Q103 8050
1/2X
1/2X
1 2 3 4 5
M101 5PIN
1
2
3
Q104 8550
1
2
3
Q105 8550
1
2
3
Q106
8050
1
2
3
Q107 8050
R121 1K
R122 1K
R123 1K
R124
1K
VCC
LOAD
UNLD
TRAY- TRAY+
DI/SW
DISCO
DISCO
DI/SW
LOAD
UNLD
DI/SW
DISCO
L102
10uH
L101 10uH
R315 4R7
C111
2.2uF/6.3V
J127
RF AMP
LRSY
ROMXA
CK2
CLKO
A
16.9344MHz
C328 20p
C329 20p
DGND
DGND
C320 10u/6.3V
AGND
C332
10u/6.3V
C376
22u/25V
C378 224K
R356 6K8
R360
6K
8
C353 330p
R364 1K5
R368 2K2
R372 2K2
C357 2700p(M)
C363 4700p(M)
C367 680p(P)
C369
22u/25V
C382 224K(M)
R376 150R
R374 100K
R380 150R
1
2
M317A
L
Q302 2SD655F
Q304 2SD655F
C321 10u/6.3V
R320 470R
EMPH
C323 10u/6.3V
C322 104K
A+5V
D+5V
2 3
1
U306A 5532
6 5
7
U306B 5532
8 4
U305C
5532
DGND
R378 4K7
R382 4K7
R414 100K
A-12V
C375
22u/25V
C377 224K
R355 6K8
R359
6K
8
C352 330p
R363 1K5
R367 2K2
R371 2K2
C356 2700p
C362 4700p
C366 680p
C368
22u/25V
C379 224K(M)
R375 150R
R373 100K
R379 150R
3
2
M317B
R
Q301
2SD655F
Q303 2SD655F
2 3
1
U305A 5532
6 5
7
U305B OPA2604
8 4
U306C
5532
R377 4K7
R381 4K7
MUTE
C536 103K
CHASIS 1
2
M318 DIGITAL OUT
R384 75R
C387 103K
1 2
3 4
L301
CHASIS
R383 150R
C385 2200p
Vin
GND
Vout
1
2
3
M303 DST310
C386 104K
J528
C383 22u/10V C384 1000p
1 2
3
U403A
74HC00
4 5
6
U403B
74HC00
DIG_OUT
DGND
12 13
11
U403D 74HC00
9 10
8
U403C
74HC00
14
7
U403E
74HC00
C380 104K
C381 104K
C371 470u/16V
C372 470u/16V
R391
220R 1/2W
R390
220R 1/2W
C374 470u/16V
C373 470u/16V
R393 220R 1/2W
R392 220R 1/2W
A+12V
A-12V
C417 104K
C418
10u/25V
D+5V
C370
103K
C333 104K AGND
A+5V
A+5V
C325 10u/6.3V
C326 104K
D+5V
DGND
DGND
LRCIN
DIN
BCKIN
CLKO
XTI
XTO
DGND
VDD
VCC2R
AGND2R
EXT1R EXT2R
VOUTR
AGND1
VCC1 VOUTL EXT2L EXT1L AGND2L VCC2L VDD DGND CKSL MODE MUTE MD/DM1 MC/DM2 ML/DSD
1 2 3 4 5 6 7 8 9
10
11
12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27 28
U302 PCM1710U
R385 10R
AGND
AGND AGND
AGND
C324 10u/6.3V
C327 104K
A+12V
A-12V
AGND
AGND
M302
1
2
3
Q305 DTC114
R394 10K
XRST
R358
1K2 R353 1K2
R357 270R
R354 270R
R362 68K
R361 68K
AGND
DAC
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.
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.