Block Diagram - Amp Section - Sony HCD-HDX277WC Service Manual

Q Q
3 7 6 3 1 5 1 5 0
6-4.

BLOCK DIAGRAM - AMP Section -

AUDIO_BUS
A
(Page 28)
BCK
K
LRCK
(Page 30)
T E
L 1 3 9 4 2 2 9 6 5 1 3
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: AUDIO
SYSTEM CONTROLLER
IC501 (4/5)
D3071
D3072
D3073
A.CAL_OUT_LEVEL 19
HP_SW
JACK2 66
HP_MUTE
HP_MUTE 53
SCDT
DAMP_SCD 1
SHIFT
DAMP_SHIFT 2
DAMP_LATCH1
65
DAMP_LATCH2 56
DAMP_LATCH3 49
DAMP_INIT 50
SOFTMUTE
DAMP_SOFT_MUTE 51
OVF1
w w w
OVERFLOW1 44
OVF2
OVERFLOW2 45
DRIVE_RST (EN) 42
DRIVE_OCP (DIAG)/ 43
POWER_DET
DC_DET 57
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
HPOUTL1 45
HEADPHONE
HPOUTL2 43
AMP
HPOUTR1 41
IC3001
HPOUTR2 39
HP_MUTE
HP_SW
D1
31 DATA OUTL1(+) 11
MCK
36 XFSIIN
BCK OUTL2( –) 9
30 BCK
LRCK
29 LRCK OUTR1(+) 6
R-CH
SCDT OUTR2( –) 4
21 SCDT
SHIFT
22 SCSHIFT
OSC BUFFER
LAT1 XFSOIN 48
23 SCLATCH IC3051
INIT
27 INIT
SOFTMUTE FSOCKO 37
19 SOFTMUTE
OVF1 FSOI 38 49.152MHz
24 OVFFLAGR
25 FLAGLOVF XFSOOUT 14
BCK
STREAM PROCESSOR
LRCK
IC3010
D2
31 DATA OUTL1(+) 11
MCK
36 XFSIIN
BCK OUTL2( –) 9
30 BCK
LRCK
29 LRCK
OUTR1(+) 6
R-CH
SCDT OUTR2( –) 4
21 SCDT
SHIFT
22 SCSHIFT
LAT2 XFSOIN 48
23 SCLATCH
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE
OVF1 FSOI 38
24 OVFFLAGR
25 FLAGLOVF XFSOOUT 14
STREAM PROCESSOR
IC3020
D1 D3
31 DATA OUTL1(+) 11
D2 MCK
36 XFSIIN
D3 BCK OUTL2( –) 9
30 BCK
LRCK
29 LRCK OUTR1(+) 6
SCDT OUTR2( –) 4
21 SCDT
SHIFT
22 SCSHIFT
LAT3 XFSOIN 48
23 SCLATCH
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE
OVF2 FSOI 38
24 OVFFLAGR
OVF1
25 FLAGLOVF
LAT1
LAT2
STREAM PROCESSOR
LAT3
IC3030
INIT
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http://www.xiaoyu163.com
MUTING MUTING
Q117, 119 Q116, 118
MUTING CONTROL
Q3081
6 PWM_A OUT_A 28 – 30 L.P.F.
14 PWM_B OUT_B 25 – 27 L.P.F.
/RESET /SD
5 4
DIGITAL POWER AMP
IC3150
X3051
6 PWM_A OUT_A 28 – 30 L.P.F.
14 PWM_B OUT_B 25 – 27 L.P.F.
Q Q
3 7 6
/RESET /SD
5 4
DIGITAL POWER AMP
IC3250
14 PWM_B OUT_B 25 – 27 L.P.F.
6 PWM_A OUT_A 28 – 30 L.P.F.
/RESET /SD
5 4
DIGITAL POWER AMP
IC3500
6 PWM_A OUT_A 28 – 30 L.P.F.
14 PWM_B OUT_B 25 – 27 L.P.F.
/RESET /SD
5 4
DIGITAL POWER AMP
IC3300
14 PWM_B OUT_B 25 – 27 L.P.F.
6 PWM_A OUT_A L.P.F.
28 – 30
/RESET /SD
5 4
DIGITAL POWER AMP
IC3400
u 1 6 3
PROTECT DETECT
+32V
Q3552 – 3555
DC DETECT
Q3551
31 31
HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
2 4
8 9 9
(HCD-HDX279W/HDX576WF)
TB101
SPEAKER
+
FRONT L
–
J101
PHONES
+
R-CH FRONT R
–
TB100
HCD-HDX275/
SPEAKER
HDX277WC/
HDX475/HDX675
+
FRONT L
–
OVER LOAD
DETECT
Q3151, 3152
+
FRONT R
R-CH
–
+
SUR L
–
3 1 5 1 5 0 8 9
OVER LOAD
DETECT
Q3201, 3202
+
R-CH SUR R
–
TB3901
SPEAKER
+
CENTER
–
OVER LOAD
DETECT
Q3301, 3302
+
SUB
WOOFER
–
D3551
OVER LOAD
DETECT
Q3251, 3252 FAN MOTOR
M3000
m M
M+12V DRIVE
(FAN)
Q3000 – 3002
c o
.
DIAG
R (Page 32)
2
8 9 9
2 4 9 8 2 9 9