Block Diagram - Main Section - Sony MDX-M690 Service Manual

6-3. BLOCK DIAGRAM – MAIN Section –
DADT,
BCK,
LRCK,
FS256 DADT DATA
(Page 21) A
5
BCK BCK
6
LRCK LRCK
4
FS256 XTI
CLK MODE
1
CONTROL CONTROL
MD-RST,
DEEMP MD-RST RSTB
B
(Page 21) 15
17 16
DEEMP
MPX
E
(Page 22)
AM
F
(Page 22)
DATA,
CLOCK
G
(Page 22)
QUAL
J
(Page 22)
S-METER
H
(Page 22)
ATT
C
(Page 21)
D903
LED DRIVE
DISC SLOT
Q901, 902
ILLUMINATION
D901
CLOSE
SW1001 Y
D803
FRONT PANEL
OPEN
OPEN/CLOSE DETECT
SW1002
SW1001
FRONT PANEL DETACH
POSITION DETECT
SW1002
S1
DISPLAY PANEL
S1
DETACH DETECT
• R-ch is omitted due to same as L-ch.
SW903
• SIGNAL PATH
DISC INSERT
DETECT
: FM
+9V
: AM (MW/LW) BACK-UP
REGULATOR
B+
IC652
: MD PLAY
: BUS AUDIO IN
REFERENCE
VOLTAGE SWITCH
FRONT PANEL
Q651, 652
OPEN/CLOSE MOTOR DRIVE
IC651
5 4 12
OUT1 OPEN
3 11
MOTOR
M
OUT2 CLOSE
DRIVE
14 6
M601
MOTOR OVER LOAD
RNF
FRONT PANEL
16 DETECT
OPEN/CLOSE
IC650, Q650
INPUT SELECT,
ELECTRICAL VOLUME
CN302 (1/2) L
IC305
BUS
AUDIO IN
R R-CH
AUX-L
4
VOUTL
MDL
12 43
AM/MPX2
9
VOUTR
9 R-CH
AMIF
10
AM/FM NOISE
BLANKER
DIGITAL FILTER,
D/A CONVERTER
IC101
12
LPF
MPX
DIGITAL
CONTROL
IIC BUS
19 20
DATA
CLOCK
X501 X503
32.768kHz 3.68MHz
73 74 93 92 70 71
99 CLOSE-SW
100 OPEN-SW
101 CENT-SW
64 DETACH_SW
111 PACK-IN
40 98 97 96 61 72 48 46 47 79
D508
D501
D651
D503
LSW60
(OPEN)
D505
J651
(REMOTE IN)
LSW1, 2, 5 – 13,
LSW15, 18, 20, 22,
S1 – 4, 7 – 15
LOW-PASS
FILTER
IC301
21 23 38 33
SACLK
SPECTRUM
ANALYZER
LOUDNESS SOFT TONE OUTPUT SOFT STEP
MIXER
VOLUME MUTE CONTROL SELECTOR FADER
SUB WOOFER SOFT STEP
FILTER FADER
PULSE
FORMER
DEMODULATOR
PILOT HIGH-
STEREO ADJUST
CANCELATION CUT
R-CH
STEREO BLEND
PILOT DET
D/A
B+
PLL
CONVERTER
QUAL POWER
SUPPLY
16 17 13 14 22 39
AUDIO
+8.5V
BACK-UP B+
D309
31 5
SYSTEM CONTROLLER
IC501 (2/3)
80 24 62
KEY ACTIVE
B/U
SWITCH
+5V
CN604
Q501
9 MAIN UNIT
SIDE
17
CN2
1 FRONT PANEL
3 XIN
SIDE
X801
4MHz
4 XOUT
SIRCS
CONTROLLER
IC801
9
REMOTE CONTROL
RECEIVER
D908, IC901
REMOTE CONTROL
RECEIVER
D70, IC62
23 23
OUTLF
28
OUTLR
27
MUTING
Q301
R-CH
MUTING
Q302
MUTING
Q303
R-CH
MUTING
Q304
24 BUFFER
OUTSW
IC310-1
MUTING
Q305
REFERENCE VOLTAGE
REGULATOR
IC310-2
D311
BATTERY OFF
MUTE DRIVER
Q310
MUTING
12
CONTROL
Q312
14
Q309
BZ501
11
BUZZER
DRIVE
Q502
15
BEEP 15
22
ST-BY 55 4
TEST-IN 84
ACCESSOR CHECK
ACC-IN 81
Q405
LEVEL SHIFT
TEL-ATT 16
Q406
ILLUMINATION
ILL-IN 95 CHECK
Q407
MDX-M690
SAOUT,
SACLK
D (Page 24)
CN302 (2/2)
L
AUDIO OUT
FRONT
R
L
AUDIO OUT
REAR
R
CN301
1
(L)
SUB OUT
2
(R)
POWER AMP
CN101 (1/2)
IC309
1
FL+ 5 FRONT L+
FL-IN
9
FL– 3 FRONT L–
4
FR+ 21 FRONT R+
FR-IN
12
FR– 23
FRONT R–
2
RL+ 9
REAR L+
RL-IN
10
RL– 7 REAR L–
3
RR+ 17 REAR R+
RR-IN
11
RR– 19 REAR R–
MUTE
STNBY
15
TEST
7
ACC
13
TEL-ATT
14
ILL