Block Diagram - Audio Section - Sony SCD-XB780 Service Manual

5-4. BLOCK DIAGRAM – AUDIO Section –
SDATAL, SDATR,
SDATALS, SDATARS,
SDATAC, SDATALF,
64FS
SDATAL DSD1
27
38
DSD3
40
(Page 22)
SDATAR DSD2
39
DSD4
41
SDATALS DSD5
42
SDATARS
DSD6
43
SDATAC DSD7
44
SDATALF DSD8
45
64FS DBCK
37
PDATA1
46
MDAT, MDAT PDATA2
47
LRCK,
LRCK PLRCK
51
BCLK
BCLK PBCK
19
50
(Page 21)
DIGITAL FILTER,
D/A CONVERTER,
LOW-PASS FILTER
ZEROL,
ZEROR
28
(Page 22)
CLOCK BUFFER
IC304
256FS
6 5 3
26
(Page 22)
1 2
X301
11.2896MHz
DATA, CLK, LATCH, INIT
32
(Page 22)
LMUTE, RMUTE
29
(Page 22)
MULTI
30
(Page 22)
DSD DSD
INTERFACE FILTER
ENHANCED
MULTI LEVEL D/A
DELTA-SIGMA CONVERTER
MODULATOR
PCM PCM
INTERFACE FILTER
ZERO SYSTEM
DETECT CLOCK
IC301
6 7 33 34
4
ANALOG
VOUT3
10
MIX AMP LOW-PASS
VOUT1
12 IC315 (2/2) FILTER
IC305 (2/2)
VOUT4
9 R-CH
VOUT2
11 R-CH
OUTPUT
AMP &
LOW-PASS
FILTER
VOUT5
31
VOUT6
30 R-CH
VOUT7
29
VOUT8
28
ANALOG
LOW-PASS
FILTER
IC306 (2/2)
FUNCTION
CONTROL
2 4 3 36
ANALOG
LOW-PASS
FILTER
IC307
23 23
HEADPHONE
AMP
IC308 (1/2)
MUTING
Q402
MUTING
Q401
MUTING
Q422
MUTING
Q421
R-CH
MUTING
Q442
MUTING
Q441
MUTING
Q542
MUTING
Q541
R-CH
MUTING MUTING MUTING
• R-ch is omitted due to same as L-ch.
CONTROL CONTROL CONTROL
• SIGNAL PATH
SWITCH SWITCH SWITCH
Q301 Q304 Q303
: SACD PLAY
: CD PLAY (ANALOG)
SCD-XB780
RV601
PHONE LEVEL
J601
R-CH
PHONES
MUTING
Q403
J301
L
ANALOG
2CH OUT
R-CH R
J302
L
FRONT
R-CH R
L
SURR
R-CH R
ANALOG
5.1CH OUT
CENTER
SUB WOOFER