Sony MDS-JE440 Service Manual ▷ View online
MDS-JE440
33
33
– MAIN SECTION –
09
X550
45.1584MHz
LED DRIVE
Q751
ROTARY
ENCODER
FL DRIVE
Q767
D751
STANDBY
A/D, D/A CONVERTER
IC500
SDTO
ADDT
DADT, BCK,
LRCK
LRCK
SDTI
(Page 32)
A
B
LINE AMP
IC350
MUTING
Q180, 280
MUTING
CONTROL SWITCH
Q380
REMOTE CONTROL
RECEIVER
IC781
OSC
J150
D412
LINE (ANALOG)
IN
LINE (ANALOG)
OUT
R
L
R
L
AD/DA LATCH
DAT
P1
P2
G13
MUTE
AD/DA RESET
CLK
CS
AC IN
AC
(TO FL771)
TR900
POWER
TRANSFORMER
UNREG +12V
LOADING MOTOR
DRIVER (IC440) B+
BACK UP +3.3V
BT420
LITHIUM
BATTERY
RECT
D481
D481
UNREG +12V
KB DATA
KB CLK
CLK-CTL
VCC2
AUDIO
CIRCUIT
UNREG –12V
RECT
D461, 462
RECT
D476 – 477
RECT
D471, 472
40 – 51
5 – 39
141, 139–138
KEY0 – KEY2
G1-G12
S1 – S35
S1
–
S35
G13
G01
–
G12
FLUORESCENT INDICATOR TUBE
FL771
FL/LED DRIVER
IC761
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
DADT
BCK
LRCK
AINL
AINR
XTI
DATA(FL)
CLK(FL)
CS(FL)
JOG0
GND
SW
JOG1
P DOWN
l
AMS L
PUSH ENTER
S713
S701 – 706, 711, 712,
S714-716, 721 – 724,
S726,731
A
B
SWDT
SCLK
CDTI
CCLK
CS
PD
SIRCS
OSCI
C769, R769
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)
(Page 32)
D
(Page 32)
C
(Page 32)
SWDT, SCLK
1024FS
ANA5
SYS3.3
V.BAK
AC
PH5
S.RST
• SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
RST
SDA
SCL
EEPROM
IC195
XIN
SDA
SCL
XOUT
X22
10MHz
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
9
10
5
6
66
61
22
26
61
62
60
52
1
LED DRIVE
Q755
D775
MD
LONG
2
58
59
63
8
STB
131
4
4
5
124
123
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 (IC761) 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
SP,MY ONLY
34
34
• WAVEFORMS
– MAIN Board –
– DISPLAY Board –
– BD Board –
1
IC101
ek
(RF)
2
IC101
ef
(FE)
(Play mode)
3
IC101
wh
(TE)
(Play mode)
4
IC151
qh
(OSCI)
5
IC151
wj
(LRCK)
6
IC151
wk
(XBCK)
7
IC151
o;
(FS4)
8
IC171
3
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.1Vp-p
45.158 MHz
3.2Vp-p
44.1 kHz
3.8Vp-p
2.8224 MHz
1.0Vp-p
45.158MHz
3.2Vp-p
176.4kHz
1
IC1
ws
(XIN)
2
IC550
2
,
3
,
5
3
IC500
9
(XTI)
4
IC500
qa
(LRCK)
5
IC500
qs
(BICK)
2.3Vp-p
10 MHz
2.6Vp-p
45.158 MHz
1.1Vp-p
45.158 MHz
3.2Vp-p
44.1 kHz
3.2Vp-p
2.8224 MHz
1
IC760
yg
(OSCI)
1.6Vp-p
480 ns
MDS-JE440
35
35
6-3. PRINTED WIRING BOARD – BD SECTION –
Ref. No.
Location
D101
A-1
Q101
B-1
Q131
C-1
Q132
B-1
Q133
B-1
Q134
C-1
• Semiconductor
Location
Ref. No.
Location
D181
D-3
D183
D-3
IC101
A-3
IC102
B-3
IC141
C-1
IC151
C-2
IC153
C-3
IC171
D-2
• Semiconductor
Location
Ref. No.
Location
IC181
D-3
IC190
D-1
IC195
D-2
Q121
B-3
Q122
B-3
Q181
D-3
Q182
D-3
MDS-JE440
36
36
6-4. SCHEMATIC DIAGRAM – BD SECTION (1/2) – • See page 34 for Waveforms. • See page 46 for IC Block Diagrams. • See page 48 for IC Pin Functions. • See page 35 for Printed Wiring Board.
PIN
FUNCTION
FUNCTION
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