Sony MDX-M690, Service Manual

Page: 29 / 80

MDX-M690
29 29
6-8. SCHEMATIC DIAGRAM – SERVO Section (2/2) – • See page 42 for Waveforms. • See page 43 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD PLAY
∗
: Impossible to measure
R537
R521
R520
R519
R518
R517
R516
R531 C516
C105
CN101
R365
R533
C513
R534
C515
C514
C505
C506
R538
C510
C11
C511
Q403
R403
R401
R402
C403
R407
R512
RB503
R526
R527
R528
R529
R511
R530
TP1
R525
R523
C504 R524 R522
IC501
TH501
R510
R505
X501
IC401
C402
R405 R406 R404 C401
D401
C501
R504
R503
R502
C103
R101 C101
C201 R201 R202
C109
C108 L101
L102
C106
C107
IC502
C102
R104
IC101
R102
C104
C503
R535
Q402
R501
R540
R542
R539
R532
R507
R506
L501
C10
Q401
C202
100
100
100
100
100
100
100
100k 0.1
0.1
30P
0
100k
0.1
100k
0.1
0.22
0.1
22
10V
100k
0.22
0.001
0.1
UN2211-TX
4.7k
10k
4.7k
0.1
100k
100k
1k
X4
2.2k
2.2k
2.2k
2.2k
150k
2.2k 100k
1k
0.1 1k 1k
CXP84340-231Q
0
1k
10MHz
NJM4580E(TE2)
0.01
1k 10k 100 0.22
DTZ-TT11
-3.0B
100p
1k
1k
1k
0.01
10k 0.0022
0.0022 10k 1k
4.7
6.3V
0.01
4.7
6.3V
0.01
HD74HC244FP-EL
10
6.3V
1k
PCM1718E/2
10k
0.1
0.1
100k
2SB1132
1k
100k
100k
100k
100
4.7k
100k
470p
2SD1664
10
6.3V
1
2
3
4
5
6
7
8
9
10
SRDT
SENS
XINIT
XLAT SCLK SW
DT
XR
ST
SQSY
BUSON
BUSON
UNISI
UNISI
UNISO
UNISO
UNICK
UNICK
SYSRST
SYSRST
LNKOF
LNKOF
BUCHK
BUCHK
MDMON
MDMON
LOAD
EJECT
ESW
EJKY
EJKY
256FS
LRCK
DATA
BCK
LOCK
CSW
LIMIT
LOCK
MNT3 M
NT2
MNT1 M
NT0
MNT0
MNT1
MNT2
MNT3
SQSY
XINIT
SRDT
SENS
MNT0
MNT1
MNT2
MNT3
SRDT
SENS
SQSY
XINIT
MECHA-ON
MD-ON
TIN3
TIN4
TIN5
TIN6
TIN7
LOAD
EJECT
MDMON
E-SW
ADJ-OK
LOCK
M
N
T
0
M
N
T
1
M
N
T
2
M
N
T
3
R
E
S
E
T
E
X
T
A
L
X
T
A
L
V
S
S
TX T
EX
A
VS
S
A
V
R
EF
IN
IT
T
EM
P
A
C
N
T
DO-SEL
EE-CS
EE-CKO
EE-SIO
MD-SO
LINKOFF
UNIREQ
UNISI
UNISO
MD-CKO
MD-SI
SENS
CC-XINT
LIMIT-IN
EJT-KEY
ERROR-PWM
MD-RST
BU-IN
BUS-ON
SQSY
C-SW
MD-LAT
MD-ON
D
E
E
M
P
A
-M
U
T
E
TS
T
C
K
O
T
S
TS
O
V
D
D
N
C
T
O
U
T
0
T
O
U
T
1
T
O
U
T
2
T
O
U
T3
T
IN
0
T
IN
1
T
IN
2
TS
T
M
O
D
AG-OK
DFCTSEL
DPLLSEL
2M/4M
EMPHSEL
DRIVER-GND
DRIVER-GND
D-GND
NC
NC
R-CH
AUDIO GND
L-CH
U COM GND
NC
XTI
DGND
VDD
LRCK
DATA
BCK
ZERO
D/CR
VOUTR
AGND
XTO
RSTB
MODE
D/CL
VOUTL
VCC
MUTE
DM1
DM0
CLKO
MD MECHANISM
CONTROLLER
D/A CONVERTER
DIGITAL FILTER,
LEVEL SHIFT
VCC
GND
+3.3V
REGULATOR
+3.3V
REGULATOR Q402,403
B+ SWITCH
NC
NC
NC
NC
DRIVER5V
LOAD6V
NC
BU5V
LOCK
ATT
EJECT
B/UCHECK
LINKOFF
SYSRESET
BUS-CLK
BUS-SO
BUS-SI
BUSON
(CHASSIS)
UNICKIO
VCC
GND
GND
GND
10 µ H
10
µ
H
(Page 28)
(Page 34)