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MDS-JE640
33
33
– MAIN SECTION –
09
X550
45.1584MHz
–1
–2
LED DRIVE
Q751
ROTARY
ENCODER
FL DRIVE
Q761, 762
D751
STANDBY
A/D, D/A CONVERTER
IC500
SDTO
ADDT
DADT, BCK,
LRCK
SDTI
(Page 32)
A
B
LINE AMP
IC350
MUTING
Q180, 280
MUTING
CONTROL SWITCH
Q380
SIRCS
BUFFER
Q851
REMOTE CONTROL
RECEIVER
IC740
OSC
J150
RV791
PHONE
LEVEL
D412
LINE (ANALOG)
IN
LINE (ANALOG)
OUT
J791
PHONES
R
L
R
L
AD/DA LATCHDA
P1
P3
P4
COM24
COM23
MUTE
AD/DA RESET
CP
CS
AC IN
AC
(TO FL780)
TR900
POWER
TRANSFORMER
UNREG +12V
LOADING MOTOR
DRIVER (IC440) B+
BACK UP +3.3V
BT420
LITHIUM
BATTERY
RECT
D481
D851
UNREG +12V
Q5
KEYBOARD
OFF SWITCH
+5V
+5V
DATA
CLK
4
1
5
KB DATA
KB CLK
CLK-CTL
VCC2
AUDIO
CIRCUIT
UNREG –12V
RECT
D461, 462
BUFFER
Q3, 4
CN820
KEYBOARD
BUFFER
Q1, 2
RECT
D476 – 477
RECT
D471, 472
79, 80, 2,1
39 – 60
3 – 37
AD1 – AD4
141, 139–137
KEY0 – KEY3
COM01 – COM22SEG01 – SEG35
S01 – S35
S36 – S39
G23
G24
G01 – G22
FLUORESCENT INDICATOR TUBE
FL780
FL/LED DRIVER
IC760
HIGH-PASS FILTER,
DIGITAL
ATTENUATOR
DIGITAL
ATTENUATOR,
SOFT MUTE
A/D
CONVERTER
BLOCK
SUB-
TRACKTION
D/A
CONVERTER
BLOCK
AUDIO
INTERFACE
CONTROLLER
CLOCK
GENERATOR,
CLOCK DIVIDER
CONTROL
REGISTER
INTERFACE
BICK
LRCK
+5V
A/D, D/A CONVERTER (IC500) B+
SYS +3.3V
A1 OUT
A1 IN
DADT
BCK
LRCK
AINL
AINR
XTI
DATA(FL)
CLK(FL)
CS(FL)
JOG0
GND
SW
JOG1
TIMER
P DOWN
l AMS L
PUSH ENTER
S713
S701 – 706, 711, 712,
S714-716, 721 – 726,
S731-733
A
B
SWDT
SCLK
CDTI
CCLK
CS
PD
SIRCS
OSCI
C772, R772
OSCO
MIX AMP
IC601 (1/2)
MIX AMP
IC601 (2/2)
OSC
IC550
LOW-PASS
FILTER
IC260 (1/2)
LOW-PASS
FILTER
IC260 (2/2)
HEADPHONE
AMP
IC390
(Page 32)
D
(Page 32)
C
(Page 32)
SWDT, SCLK
1024FS
ANA5
SYS3.3
V.BAK
AC
PH5
S.RST
J851
CONTROL A1 ΙΙ
S746
TIMER
• SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
RESET
SDA
SCL
EEPROM
IC195
XIN
SDA
SCL
XOUT
X22
10MHz
REC
OFF
PLAY
SYSTEM CONTROLLER
IC1 (2/2)
REGULATOR
IC400
RESET
13
14
12
11
15
16
17
19
3
2
AOUTL+
AOUTL–
26
25
AOUTR+
AOUTR–
28
27
9
3
9
31
10
5 6
66
61
22
26
6869
136
67
62
61
72
LED DRIVE
Q752
D752
PITCH
CONTROL
LED DRIVE
Q753
D753
SF
EDIT
LED DRIVE
Q755
D775
MD
LONG
P2
73 74 75
66
65
70
8
STB
131
116
28
114
4
45
124123
1 3
1 2
128
26 19
2
11
8
4
5
10
13
VCC1
7
6
P.DOWN
–32V
REGULATOR
IC480
–32V
(FL DRIVER (IC760) B–)
+3.3V
REG
IC190
D+3V
+5V
KEYBOARD
HEAD
MOTOR
RECT
D431,432
RECT
D401-404
TR950
POWER
TRANSFORMER
RELAY
DRIVE
Q910
VOLTAGE
SELECTOR
S951
MY,SP ONLY
MUTING
Q190,290