MXD-D400
48
48
6-3.
BLOCK DIAGRAM – MAIN Section –
MUTING
CONTROL
Q3
ROTALY
ENCODER
S717
RELAY
DRIVE
Q4
MUTING
Q5, 6
REGULATOR
IC7
LITHIUM
BATTERY
BT1
D23
MD RESET
SRST
P DOWN
(AC IN)
POWER TRANSFORMER
(MAIN)
TR651
RECT
D14, 15
RECT
D6, 7
RECT
D8, 9
RECT
D10, 11
AMP B–
AMP B+
RECT
D16, 17
RECT
D18
RY650
LINE FILTER
LF651
POWER ON/OFF
RELAY DRIVE
Q1
DOUT
A
G
• SIGNAL PATH
: AUDIO
• R-ch is omitted due to same as L-ch.
(Page 47)
(Page 46)
AOUT
C
(Page 46)
J790
-1
-2
PHONES
RV790
PHONE LEVEL
RY650
-2
-1
POWER TRANSFORMER
(SUB)
TR652
EVER
+3.3V
RECT
D2, 3
+3.3V
REGULATOR
IC1
+8V
FL B+
L10V
+8V
REGULATOR
IC4
–32V
–32V
REGULATOR
IC3
CD +2.5V
CD +3.3V
+2.5V/+3.3V
REGULATOR
IC122
RF +3.3V
+3.3V
REGULATOR
IC9
+3.3V
REGULATOR
IC933
MD +2.6V
MD +5V
ANA +5V
SYS +3.5V
3.3V
MD +3.3V
+2.6V
REGULATOR
IC926
EVER
+3.3V
RESET SIGNAL
GENERATOR
IC2
REMOTE CONTROL
RECEIVER
IC781
SPDIF
BUFFER
IC8
OPTICAL
RECEIVER
IC15
MD DOUT
F
(Page 47)
+5V
REGULATOR
IC5
RELAY
+5V
FL B+
D28
X1
16MHz
HEADPHONE
AMP
IC17
LINE AMP
IC13
10
7
S.RST
13 P.DOWN
4 ANA5
5 PH5
VCC2
6
VCC1
2
AC
8 SYS3.5
11 V.BAK
A/D, D/A CONVERTER
IC11
6
INT0
7
INT1
5
PDOWN
9
CDTO
8
CDTI
10
CCLK
11
CS
42 RX1
44 RX2
2
RX3
LEVEL R
LEVEL L
IIC CLK
IIC DATA
R
ANALOG
OUTPUT
OPTICAL
DIGITAL
INPUT
OPTICAL
TRANSCEIVER
IC14
14 TX2
OPTICAL
DIGITAL
OUTPUT
S700 –704,
S720
L
R
ANALOG
INPUT
L
J1
38
L-IN
37
R-IN
32
L-OUT
33
R-OUT
CODEC
DOUT
E
(Page 47)
13 TX1
FL/LED DRIVER
IC760
70
DA
69
CP
39 COM01
SEG01
SEG35
62 COM24
SYSTEM CONTROLLER
IC6 (2/2)
90
LEVELR
88
MDRESET
12
RESET
74
P3
73
P2
72
P1
29
IICCLK
30
IICDATA
89
LEVELL
97 KEY0
86 MDJOG1
87 MDJOG0
66
SCMS
15
XIN
85
LINEMUTE
AMUTE
79
MAINACCUT
11
STB
1
DRVDAT
2
DRVCLK
3
DRVCS
81 DRVRST
LINE AMP
IC16
75
ADAINT0
74
ADAINT1
76
ADARST
72
ADADATAI
70
ADADATAO
49
CDMP3SEL
69
ADACLK
68
CS_ADALAT
IIC DATA, IIC CLK,
LEVEL L, LEVEL R,
P DOWN, SRST, MD RESET
: MD PLAY
: MD REC
: CD PLAY (ANALOG OUT)
: CD PLAY (DIGITAL OUT)
: OPTICAL DIGITAL IN
: OPTICAL DIGITAL OUT
S710 –716,
S718, 719
95 KEY1
S706, 721, 722,
S725 –729, 1701
l
AMS
L
(MD)
94 KEY2
13
XOUT
ROTALY
ENCODER
S723
FLUORESCENT
INDICATOR
TUBE
FL750
77 CDJOG1
91 RECLEVEL
78 CDJOG0
RV780
l
AMS
L
(CD)
STANDBY
D726
REC REVEL
4
SIRCS
3
−
37
−
COM01
COM23
−
40
−
61
GRID
DRIVE
Q761
GRID
DRIVE
Q762
LED
DRIVE
Q726
LED
DRIVE
Q772
LED
DRIVE
Q775
MDLP
D772
GROUP
ON/OFF
D775
68
CS
67
RESET
BUFFER
IC19