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HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
32
32
HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
6-4. BLOCK DIAGRAM – AMP Section –
DIGITAL POWER AMP
IC3150
TB780
31
11
DATA
LAT1
INIT
SOFTMUTE
SCDT
SHIFT
OUTL1
9
OUTL2
6
OUTR1
4
OUTR2
48
XFSOIN
37
FSOCKO
38
FSOI
14
XFSOOUT
OVER LOAD
DETECT
Q3151, 3152
SYSTEM CONTROLLER
IC501 (4/5)
SPEAKER
TB3901
SPEAKER
FRONT L
FRONT R
SUR L
SUR R
WOOFER
CENTER
MCK
BCK
LRCK
OVF1
DC DETECT
Q3551
M+12V
+32V
D3551
D3073
B
AMP BUS
L
DIAG
STREAM PROCESSOR
IC3010
6 PWM_A
OUT_A
14
5
PWM_B
/RESET
4
/SD
36 XFSIIN
30 BCK
29 LRCK
HPOUTL1
HPOUTL2
HPOUTR1
HPOUTR2
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
25 FLAGLOVF
D1
HP_SW
HP_MUTE
OVER LOAD
DETECT
Q3201, 3202
OVER LOAD
DETECT
Q3251, 3252
OVER LOAD
DETECT
Q3301, 3302
47
48
49
X3051
49.152MHz
R-CH
OSC BUFFER
IC3051
31
11
DATA
LAT2
INIT
SOFTMUTE
SCDT
SHIFT
OUTL1
9
OUTL2
48
XFSOIN
38
FSOI
14
XFSOOUT
31
11
DATA
LAT3
INIT
SOFTMUTE
SCDT
SHIFT
OUTL1
9
OUTL2
6
OUTR1
4
OUTR2
48
XFSOIN
38
FSOI
MCK
BCK
LRCK
OVF2
STREAM PROCESSOR
IC3030
36 XFSIIN
30 BCK
29 LRCK
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
OVF1
25 FLAGLOVF
D3
MCK
BCK
LRCK
OVF1
STREAM PROCESSOR
IC3020
36 XFSIIN
30 BCK
29 LRCK
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
19 SOFTMUTE
24 OVFFLAGR
D2
DAMP LATCH1
19
D3072
D3071
A.CAL_OUT_LEVEL
LAT2
LAT1
DAMP LATCH2
LAT3
52
53
HP_SW
HP_SW
HP_MUTE
HP_MUTE
DAMP LATCH3
INIT
D1
D2
D3
44
51
50
45
DAMP INIT
SOFTMUTE
DAMP SOFT MUTE
OVF1
OVERFLOW1
OVF2
OVERFLOW2
42
DRIVE_RST (EN)
43
DRIVE_OCP (DIAG)
57
DC_DET
28 – 30
OUT_B
25 – 27
DIGITAL POWER AMP
IC3400
6 PWM_A
OUT_A
14
5
PWM_B
/RESET
4
/SD
28 – 30
OUT_B
25 – 27
PROTECT DETECT
Q3552, 3553
DIGITAL POWER AMP
IC3300
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
DIGITAL POWER AMP
IC3250
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
DIGITAL POWER AMP
IC3500
(EXCEPT HDX266)
14 PWM_B
OUT_B
6
5
PWM_A
/RESET
4
/SD
25 – 27
OUT_A
28 – 30
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
• SIGNAL PATH
: AUDIO
M
M3000
(FAN)
+
–
+
–
+
–
+
–
+
–
K
6
OUTR1
4
OUTR2
R-CH
R-CH
R-CH
SCDT
D2
SHIFT
BCK
LRCK
SCDT
D2
SHIFT
BCK
LRCK
FAN MOTOR
DRIVE
Q3000 – 3002
25 FLAGLOVF
PHONES
J800
• R-CH is omitted due to same as L-CH.
45
43
41
39
HEADPHONE
AMP
IC3001
MUTING CONTROL
Q3081
MUTING
Q800, 801
MUTING
Q802, 803
+
–
(Page 33)
(Page 29)
(Page 31)