Block Diagram - Amp Section - Sony HCD-HDX285 Service Manual

6-4.

BLOCK DIAGRAM - AMP Section -

PLUG_DET2
(Page 29) F
AUDIO_BUS
(Page 28) A
BCK
K
(Page 30)
LRCK
• R-CH is omitted due to same as L-CH.
• SIGNAL PATH
: AUDIO
SYSTEM CONTROLLER
IC503 (4/5)
D3071
D3072
D3073
A.CAL_OUT 68
HP_MUTE 71
DAMP_SCDT 1
DAMP_SHIFT
2
DAMP_LAT1 59
DAMP_LAT2
60
DAMP_LAT3 61
DAMP_INIT 57
SOFT_MUTE 58
OVERFLOW1 55
OVERFLOW2 56
DRIVER_RST (EN) 54
SD/PVDD_DET 67
DC_DET 66
HCD-HDX285/HDX287WC/HDX585/HDX587WC/HDX589W/HDX685/HDX686W
HPOUTL1 45
HPOUTL2 43
HPOUTR1 41
HPOUTR2 39
HP_MUTE
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
24 OVF FLAGR
25 OVF FLAGL XFSOOUT 14
BCK
(HDX589W/HDX686W)
STREAM PROCESSOR
LRCK
IC3010
D2
31 DATA OUTL1(+) 11
MCK
36 XFSIIN
BCK OUTL2( –) 9
30 BCK
LRCK
29 LRCK
OUTR1(+) 6
SCDT
OUTR2( –) 4
21 SCDT
SHIFT
22 SCSHIFT
LAT2 XFSOIN 48
23 SCLATCH
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE
OVF1 FSOI 38
24 OVF FLAGR
25 OVF FLAGL 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
HP_MUTE
INIT
27 INIT
SOFTMUTE
19 SOFTMUTE
SCDT
OVF2 FSOI 38
24 OVF FLAGR
SHIFT
OVF1
25 OVF FLAGL
LAT1
LAT2
STREAM PROCESSOR
LAT3
IC3030
INIT
SOFTMUTE
OVF1
OVF2
HCD-HDX285/HDX287WC/HDX585/HDX587WC/HDX589W/HDX685/HDX686W
HEADPHONE
AMP
IC3001
MUTING MUTING
Q3117, 3119 Q3116, 3118
MUTING CONTROL
Q3081
8 PWM_A OUT_A 34 – 36 L.P.F.
16 PWM_B OUT_B 31 – 33 L.P.F.
/RESET /SD
7 6
DIGITAL POWER AMP
IC3150
X3051
49.1MHz
8 PWM_A OUT_A 34 – 36 L.P.F.
16 PWM_B OUT_B 31 – 33 L.P.F.
/RESET /SD
R-CH
7 6
DIGITAL POWER AMP
IC3250
16 PWM_B OUT_B 31 – 33 L.P.F.
8 PWM_A OUT_A 34 – 36 L.P.F.
/RESET /SD
7 6
DIGITAL POWER AMP
IC3500
8 PWM_A OUT_A 34 – 36 L.P.F.
16 PWM_B OUT_B 31 – 33 L.P.F.
/RESET /SD
7 6
DIGITAL POWER AMP
IC3300
16 PWM_B OUT_B 31 – 33 L.P.F.
8 PWM_A OUT_A 34 – 36 L.P.F.
/RESET /SD
7 6
DIGITAL POWER AMP
IC3400
D3552
PROTECT DETECT
AMP+32V
Q3552 – 3555
DC DETECT
Q3551
31 31
(HDX589W/HDX686W)
TB5300
SPEAKER
+
FRONT L
–
J5001
PHONES
+
FRONT R
R-CH
–
HDX285/HDX287WC/ TB5301
HDX585/HDX587WC/ SPEAKER
HDX685
+
FRONT L
–
OVER LOAD
DETECT
Q3151, 3152
+
FRONT R
R-CH
–
+
SUR L
–
OVER LOAD
DETECT
Q3201, 3202
+
R-CH SUR R
–
TB3901
SPEAKER
+
CENTER
–
OVER LOAD
DETECT
Q3301, 3302
+
SUBWOOFER
–
D3551
OVER LOAD
DETECT
Q3251, 3252 FAN MOTOR
M001
M
DRIVE
M+14V
(FAN)
Q3000 – 3002
DIAG
R (Page 32)