Block Diagram - Main Section - Sony MDX-CA680 Service Manual

4-3. BLOCK DIAGRAM – MAIN Section –
DADT,
BCK,
LRCK,
FS256 DADT DATA
(Page 23)
A 5
BCK BCK
6
LRCK LRCK
4
FS256
XTI CLK MODE
1
CONTROL CONTROL
MD-RST,
DEEMP
MD-RST RSTB
(Page 23) B
15
17 16
DEEMP
AM
(Page 24) F
MPX
E
(Page 24)
DATA, CLOCK
I
(Page 24)
S-METER
(Page 24) H
6 98 5 4
D665
J561
REMOTE IN
LSW901 – 911,
LSW914 – 919,
S902 – 907
(VOLUME CONTROL)
EJKT
C
(Page 23)
MD-ATT
(Page 23) D
PJ401 (1/2) L
INPUT SELECT,
BUS ELECTRICAL VOLUME, FM MPX
AUDIO IN IC401
R
R-CH
FD1L+
3
VOUTL
SEL
12 1
AM
11
VOUTR
9 R-CH
AMIF
AM/FM
12
NOISE
BLANKER
DIGITAL FILTER,
D/A CONVERTER
IC101 MPX
13 L.P.F.
DIGITAL
CONTROL
IIC BUS
20 21
DATA
CLOCK
45 47
SYSTEM CONTROLLER
IC501 (2/3)
97 96 26 91 34
KEY ACTIVE
SWITCH U-COM +5V
Q664
S701
(NOSE DETECT)
ROTARY
ENCODER
RE901
LOUDNESS/ SOFT TONE
VOLUME MUTE CONTROL
MONO
MIXER
FADER
MUTE LOUDNESS
DEMODULATOR
PILOT
+STEREO ADJUST L.P.F. S & H HIGH-CUT
CANCELATION
+STEREO BLEND
PILOT
PLL
DET
MULTIPATH D/A
DETECTOR CONVERTER
18 15 14
70
94 18 20 19 12 13 16
X501
CN701
18.432MHz
9
MAIN UNIT SIDE
78 77 76
CN901
1
FRONT PANEL SIDE
LCD DRIVER
AMBER 80
OSC 74 OSC
IC900
GREEN 79
C953, R957
SEG03 – SEG66 COM1 – COM4
1 – 64 65 – 68
LCD901
LIQUID CRYSTAL DISPLAY
25 25
OUTLF
30
OUTLR
29
MUTING
Q431
R-CH
MUTING
Q441
MUTING
Q451
R-CH
R-CH
MUTING
Q461
BEEP 35
AMPATT 66
AMPON 67
15 69 40 37
X502
32.768kHz
LEVEL SHIFT
Q651
D479
BATTERY OFF
BACK-UP B+ MUTE DRIVER
Q479
D502
MUTING
CONTROL
Q478
COLOR
SELECT
Q901, 902 LED900 – 903, 905, 906,
LED909, 910, 913, 914,
(MDX-CA680)
LSW901 – 911, 914 – 919
MDX-CA680/CA680X
PJ401 (2/2)
L
AUDIO OUT
FRONT
R
L
AUDIO OUT
REAR
R
POWER AMP
CN601 (1/2)
IC611
1
FL+ 5 FRONT L+
12 FL-IN
9
FL– 3 FRONT L–
4
FR+ 21 FRONT R+
14
FR-IN
12
23
FR– FRONT R–
2
9
RL+ REAR L+
11 RL-IN
10
RL– 7 REAR L–
3
RR+ 17 REAR R+
15 RR-IN
11
RR– 19 REAR R–
16 AUX IN
22 MUTE
4 STNBY
15
TEST
13
TEL-ATT
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: MD PLAY
: FM
: MW/LW
: BUS AUDIO IN