Block Diagram - Audio Section - Sony SCD-XB940 Service Manual

SCD-XB940
2-4. BLOCK DIAGRAM – AUDIO Section –
CD DATA,
CD BCK,
CD LRCK
(Page 10) 25
SDATA L, SDATA R
(Page 10) 26
LT64FSO
(Page 10) 27
256FSO IN
(Page 10) 28
INIT, LATCH,
SHIFT, DATA, MODE
(Page 11) 32
AMUTEZ
33
(Page 11)
05
DIGITAL FILTER,
D/A CONVERTER
IC301
CD DATA
L1 (–) 1
48 DATAI
CD BCK
49 BCKI L1 (+) 3
CD LRCK
50 LRCKI
L2 (+) 6
L2 (–) 8
SDATA L
53 SDATA L
SDATA R
+7V
52 SDATA R
51 SBCKI
44 LVCK02
INIT
30 INIT
28 NREGCLR
LATCH
31 LATCH
SHIFT
32 SHIFT
DATA
33 SCDATA
MODE
34 MODE
R2 (–) 17
R2 (+) 19
R1 (+) 22
R1 (–) 24
XOUT XIN
12 13
+7V
X321
45MHZ
I-V
CURRENT PULSE CONVERSION
IC401 IC402
I01+
IN2–
28 1
2
I02–
IN2+
27 2
SWITCHING
CIRCUIT
IN1+ I01–
25 4 5
IN1– I02+
24 5
CONSTANT VEE1
VCC1
10 CURRENT 18 –7V
CIRCUIT
CONTROL
CIRCUIT
CIREF
15
+5V
CURRENT PULSE
I-V
IC501
CONVERSION
IC502
IN2– IO1+
28 1 2
IO2–
IN2+
27
2
SWITCHING
CIRCUIT
IN1+ IO1–
25 4 6
IN1– IO2+
24
5
CONSTANT
VCC1 VEE1
18 –7V
10 CURRENT
CIRCUIT
CONTROL
CIRCUIT
CIREF
15
+5V
12 12
AUDIO FILTER
AUDIO FILTER
IC403 (1/2)
IC403 (2/2)
1 6
3
7
5 1
2
7
HEADPHONE
AMP
RV601-1
IC331 (1/2)
PHONE LEVEL
5 7
MUTING
Q403
AUDIO FILTER
AUDIO FILTER
IC503 (1/2)
IC503 (2/2)
1 3
1 5
2 7
6
7
HEAD PHONE
AMP
IC331 (2/2)
3 1
RV601-2
PHONE LEVEL
MUTING
Q503
MUTING
CONTROL
Q303
R
J301
ANALOG OUT
L
RY301
RELAY
DRIVE
Q301, Q302
J601
PHONES
SIGNAL PATH
: SACD
: CD