Sony HCD-C450 Service Manual page 34

HCD-C450
Q Q
– Power Section –
3 7 6 3 1 5 1 5 0
D1
D2
D3
E
SCK
AUDIO-1
BCKO
SECTION
LRCKO
IC300
2 4
X300
49.152MHz
T E
L 1 3 9 4 2 2 9 6 5 1 3
SCDT
SHIFT
LAT1
LAT2
LAT3
INIT
F NS MUTE
PG MUTE
CPU
EN
SECTION
DIAG
RELAY
HP MUTE
HP SW
+5V
+3,3V
w w w
IC305 IC301
STREAM PROCESSOR POWER DRIVER (F)
43 DATA OUTL1+ 24 8 INA OUTA 2
11 INB
OUTL2+ 15
OUTB 17
OUTR1+ 10 R-CH 7 EN
OUTR2+ 1 R-CH 12 DIAG
64 XFS1
44 BCK
45 LRCK
38 SCDT
SCSHIFT
37
36 SCLATCH
41 INIT
39 NSPMUTE
40 PGMUTE
28 XFS0IN XFSOOUT 77
74 FSOI
FSOCKO 73
IC308
IC306
STREAM PROCESSOR POWER DRIVER (C)
43 DATA 8 INA
OUTL1+ 24 OUTA 2
OUTL2+ 15 11 INB
64 XFS1
OUTB 17
7
EN
44 BCK
12 DIAG
45 LRCK
38 SCDT IC307
POWER DRIVER (W)
SCSHIFT
37
36 SCLATCH OUTR1+ 10 8 INA OUTA 2
11 INB
OUTR2+ 1
41 INIT
OUTB 17
39 NSPMUTE 7 EN
40 PGMUTE 12 DIAG
28 XFS0IN XFSOOUT 77
FSOI
74
IC310 IC309
STREAM PROCESSOR
POWER DRIVER (R)
43 DATA OUTL1+ 24 8 INA OUTA 2
11 INB
OUTL2+ 15
64 XFS1 OUTB 17
OUTR1+ 10 R-CH 7 EN
44 BCK
12
OUTR2+ 1 R-CH DIAG
45 LRCK
38 SCDT
37 SCSHIFT
36 SCLATCH
41 INIT
39 NSPMUTE
40 PGMUTE
28 XFS0IN
74 FSOI
Q301
IC312
1
4 RELAY
2
DRIVE
IC302
+5V
3 1 +6.5V
REG
IC303
+3.3V
3 1
REG
x a o
. i
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J401 (1/2)
L401,C451
LPF
L FRONT
L401,C452
LPF
L402,C453
LPF
L REAR
L402,C454
LPF
RY301
+27V
+6.5V
DA +5V
DA +3,3V 3
DVD +3.3V
+1.8V 3
J401 (2/2)
L403,C455
LPF
L403,C456 CENTER
LPF
L404,C457
LPF +12V
L404,C458 WOOFER
LPF M +12V
D +5V
RY302
A +5V
A +3,3V
3
Q Q
3 7 6
E +5.6V
Q900
R-CH
J900
MUTE
PHONES
u 1 6 3
y
34 34
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2 4
8 9 9
IC903
+6.5V
2 1
REG
IC004
5
+5V
3 1
REG
IC005
+3.3V
1 Q906
REG
IC906 D911
+3,3V
2 1 RECT
REG
IC006
5
+1.8V
1
REG
Q910
Q911
Q907 D909
POWER
RECT
SWITCH
Q002
+12V
SWITCH
IC003
Q909
+5V
3 1
REG
Q001
IC002
+5V
3 1
REG
IC001 IC902
+3.3V ERROR
1 1
REG
3 1 5 1 5 0 8 9
Q908
IC905
D917
+5.6V
3
1
REG
P.CONT2
P.CONT1
G
IC904
CPU
RESET 1
D913
RESET
5
SECTION
2
• R-CH is omitted due to same as L-CH.
• Signal Path
m
c o
.
2
8 9 9
T901
POWER TRANS
S901
LF901,902
D902 POWER
F901
LINE
AC
FILTER
IN
D910
IC901
SWITCHING REG
3 D
2 S
Q901-903
D906
REG 4 VCC
5 GND
PC901
1 FB/OCP
2
AMP
Q905
2 4 9 8 2 9 9
PC902
IC907
Q915
: FM
: CD
: DVD
: VIDEO
: Y
: CHROMA