Audio Section - Sony HCD-DX170 Service Manual

– AUDIO SECTION –
• Signal Path
: AUDIO
D1 – D3, SCK,
BCKO, LRCKO
AMP
A
SECTION
FL801
FLUORESCENT
INDICATOR TUBE
F1
F2
G1
S801 – S813
HCD-DX150/DX170/DX250
IC509 (3/4)
IC802
SYSTEM CONTROLLER
FL DRIVER
7 27 FL DATA
DIN
CLK 8 24 FL CLK
STB 9 28 FL CS/STB
HP SW
HP MUTE
30 VFL
42
Q802
FL DRIVER
74 KEY INT
IC801
4 SIRCS–IN
REMOTE CONTROL
RECEIVER
DAMP SCDT
DAMP SHIFT
DAMP LAT1
S800
10 ENA
VOLUME DAMP LAT2
ENCODER 11 ENB
DAMP LAT3
DAMP INIT
DAMP SOFT MUTE
VOLUME
OVERFLOW1
OVERFLOW2
DRIVE RST
DRIVE OCP
STREAM PROCESSOR
D1
31 DATA
SCK
36 XFSIIN
BCKO
30 BCK
LRCKO
29 LRCK
25 FLAGL OVF
OVF2
24 OVF FLAGR
SCDT
21 SCDT
SHIFT
22 SCSHIFT
LAT1
23 SCLATCH
INIT
27 INIT
NSPMUTE
18 NSPMUTE
SOFTMUTE
19 SOFTMUTE
HP-SW
56
HP-MUTE
57
STREAM PROCESSOR
D2
31 DATA
SCK
36 XFSIIN
BCK
30 BCK
LRCK
29 LRCK
25 FLAGL OVF
OVF2
24 OVF FLAGR
SCDT
21 SCDT
SHIFT
22 SCSHIFT
LAT2
23 SCLATCH
INIT
27 INIT
NSPMUTE
18 NSPMUTE
SOFTMUTE
19 SOFTMUTE
13
Xout
X502
5MHz
Xin
15
STREAM PROCESSOR
D3
31 DATA
SCK
36 XFSIIN
BCKO
30 BCK
SCDT LRCKO
1 29 LRCK
SHIFT OVF
2 25 FLAGL OVF
LAT1 SCDT
51 21 SCDT
LAT2
SHIFT
52 22 SCSHIFT
LAT3
LAT3
53 23 SCLATCH
INIT INIT
54 27 INIT
SOFTMUTE NSPMUTE
55 18
NSPMUTE
OVF SOFTMUTE
49 19 SOFTMUTE
OVF2 OVF2
50 24 OVF FLAGR
47
48
31 31
IC301
IC108
HEADPHONE
AMP
HPOUTL1 45 2
1
HPOUTL2 43 3
41 6
HPOUTR1
7
39 5
HPOUTR2
IC101
POWER DRIVER
R
OUTR1 6 2 PWMBP
R
4
OUTR2 17 PWMAP
L
4 RESET
11
OUTL1
L
OUTL2 9
14
XFS0OUT
IC102
POWER DRIVER
FS0I 38
IC305
XFS0IN 48
2 PWMBP
OSC
17 PWMAP
4 RESET
X450
49.152MHz
IC109
IC103
XFS0OUT 14
POWER DRIVER
SR
6
OUTR1 2 PWMBP
SR
4 17 PWMAP
OUTR2
SL
4 RESET
OUTL1 11
SL
9
OUTL2
38
FS0I
IC104
XFS0IN 48 POWER DRIVER
2 PWMBP
17 PWMAP
RESET
4
IC110
IC105
POWER DRIVER
C
OUTR1 6 2 PWMBP
C
OUTR2 4 17 PWMAP
WF
4 RESET
11
OUTL1
WF
OUTL2 9
FS0I 38
FS0CKO 37
IC106
POWER DRIVER
XFS0IN 48
2 PWMBP
17 PWMAP
4 RESET
Q301
PROTECT DETECT
IC107
POWER DRIVER
13 SD
4 RESET
HCD-DX150/DX170/DX250
J801
PHONES
Q507
Q806 - 809
MUTING
MUTING
CONTROL
SPEAKER
29
LPF (+)
OUTB 30
FRONT
25 R
LPF
OUTA (–)
26
Q101, 102
13
DC
DETECT
29
OUTB LPF (+)
30
FRONT
25 L
OUTA LPF (–)
26
Q103, 104
13
DC
DETECT
J201
29
(+)
OUTB LPF
30
SURR
25
R
LPF (–)
OUTA
26
Q105, 106
13
DC
DETECT
29
OUTB LPF (+)
30
SURR
25
L
LPF (–)
OUTA
26
Q107, 108
13
DC
DETECT
29
OUTB (+)
30 LPF
CENTER
25
OUTA LPF (–)
26
Q109, 110
13
DC
DETECT
J202
29
LPF (+)
OUTB 30
WOOFER
25
OUTA LPF (–)
26
Q111, 112
DC
13
DETECT
FAN
FAN
+12V
DRIVE
Q302-304
29
OUTB
30
170,250
25
OUTA
26