Block Diagram - Main Section - Sony WX-7700MDX Service Manual

WX-7700MDX
5-3. BLOCK DIAGRAM – MAIN Section –
CD/MD
SELECTOR
CD-DATA,
IC504
CD-BCK,
16
CD-LRCK
CD-DATA
A 11 3A
VCC
3Y
MD-DATA
(Page 24)
10 3B
CD-BCK
2 1A
1Y
MD-BCK
3 1B
CD-LRCK
MD-DATA,
5 2A
(Page 25) MD-BCK,
2Y
MD-LRCK MD-LRCK
E
6 2B
SEL
(Page 24) 1
BFOT
B
512FS
F
(Page 25)
(L)
PNJ2
AUX IN
(R) R-CH
PNJ1 (1/2)
(L)
BUS AUDIO
IN (R) R-CH
ANT
1 AM ANT IN AM DET 8
2 MPX 10
FM ANT IN
TUNER UNIT
TU1
DAT IIC 12
CKL IIC 13
DAT-EEP 17
CKL-EEP 18
S-METER 14
SP SI,
SP CLK
J
(Page 27)
B+ SWITCH DSP +3.3V
Q501 (FOR DIGITAL)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER,
77
XMST
D/A CONVERTER FL-OUT
9 71 SI1 27
AOUTL1
IC500
RL-OUT
AOUTR1 29
FR-OUT
AOUTR3 54 R-CH
RR-OUT
4 75 BCK
AOUTL3 52 R-CH
SUB-OUT
AOUTR2 43
XTLI38 41
7 76 LRCK
X500
35 LIN
16.9344MHz
R-CH 46 RIN
XTLO38 40
58 BFOT
81 PLCKL
61 63 59 62 60 57 82 64
INPUT SELECTOR, FM MPX
IC300 (1/2)
FD2L+
7
LOUDNESS/ SOFT TONE
VOLUME MUTE CONTROL
FD1L+
3
AM
11 MUTE LOUDNESS
AMIF
AM/FM
12
NOISE
BLANKER
DEMODULATOR
MPX PILOT
13
L.P.F. +STEREO ADJUST
CANCELATION
+STEREO BLEND
PILOT
PLL
DET
MULTIPATH
QUAL
DETECTOR
17 16
11 10
ELECTRICAL VOLUME
IC300 (2/2)
R-CH
ACINLF
LOW-PASS 34
FILTER MONO FADER
ACINLR
33
IC200
SUBWOOFER
+PHASE CONTROL
LOW-PASS
FILTER 36
IC101
35
SWINR
ACOUTL
38
TO
OUTPUT
SELECTOR
SM
18
XMST
TRDT
RVDT
L.P.F. S & H HIGH-CUT SCK
R-CH
XLAT
REDY
DSPRST
XECKSTP
D/A
CONVERTER
SP SI
DIGITAL SP CLK
CONTROL
IIC BUS
15 14 20 21
53 70 71
MASTER CONTROLLER
(CD MECHANISM CONTROLLER)
IC550 (2/4)
26 26
OUTLF
LINE
30
MIXER AMP
OUTLR
29
IC102
MUTING
OUTSWL Q104
26
MONO
OUTSWR
FADER
25 R-CH
MUTING
Q203
LINE
AMP
IC104
MUTING
Q103
CENTER VOLTAGE
GENERATOR
7 D AUDSEL
(FOR BIAS)
IC303
R-CH
LOW-PASS
FILTER
IC103
MUTING
Q100
31 VOLATT
BZ300
29 DSPMST
BUZZER
MUTING
DRIVE
Q201
20 DSPSI Q307
21 DSPSO
22 DSPCKO
3 DSPLAT
BEEP 15
76 DSPREDY
4 AMPON 120
DSPRST
28 DSPPLL
TESTIN 84
LEVEL SHIFT
TELMUTE 16
Q310
BATTERY OFF
MUTE DRIVER
EMPH IN 115
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
: MD PLAY
: FM
: AM
: BUS AUDIO IN
: AUX IN
FL
K
(Page 27)
PNJ1 (2/2)
(L)
FRONT
R-CH
(R)
AUDIO OUT
(L)
REAR
R-CH
(R)
(L)
SUB WOOFER
OUT (MONO)
R-CH (R)
AUDIO +8V
POWER AMP
CNP400 (1/2)
IC402
2
OUT1+ 9 FL+
FL
11 IN1
1
OUT1– 7 FL–
3
5
OUT2+ FR+
FR
R-CH 12 IN2
4
OUT2– 3 FR–
10
OUT3+ 17 RL+
RL
13 IN3
9
OUT3– 19 RL–
11
OUT4+ 21 RR+
RR
R-CH 14 IN4
12
RR–
OUT4– 23
22 MUTE
4 ST-BY
13
TEST
14
ATT
D304
BATT B+
Q306
MUTING CONTROL
MUTE
L
SWITCH
Q305
(Page 27)
MUTING CONTROL
SWITCH
Q303
(Page 24)
CD EMPH
D
D371
MD EMPH
G
D552
(Page 25)