Sony MDX-66XLP Service Manual ▷ View online
17
17
MDX-66XLP
Pin No.
Pin Name
I/O
Pin Description
63
—
O
Not used.
64
EE CS
O
Chip select output to EEPROM (Not used in this set.)
65
EE CKO
O
Serial clock output to EEPROM (Not used in this set.)
66 EE SIO I/O Data input/output to EEPROM (Not used in this set.)
67
SENS
I
Internal status input from CXD2662R (IC200)
68
LIMIT SW
I
Optical pick-up innermost track limit position detection switch (S400) input
69
DOORSW
I
Front door open detection switch (S620) input (“L” : Open complete)
70
MD LAT
O
Serial latch signal output to CXA2523AR (IC100) and CXD2662R (IC200)
71
MD RST
O
Reset signal output to CXD2662R (IC200)
72
VSS
—
Ground pin
73
MD ON
O
Servo system power control output (“H” : Power ON) (Not used in this set.)
74
EMPH O
O
De-emphasis circuit control output (“H” : De-emphasis ON)
75
A ATT
O
Analog mute control output (“H” : Mute ON)
76
ILLON
O
Illumination lamp light-up control output (“H” : Lamp light-up) (Not used in this set.)
77
TSTSMD
I
Single mode setting pin (“L” : Single mode)
78
TSTCKO
O
Serial clock output to LED for TEST mode display (Not used in this set.)
79
TSTSO
O
Serial data output to LED for TEST mode display (Not used in this set.)
80
TSTMOD
I
TEST mode setting pin (“L” : TEST mode)
81
VDD
—
Power supply pin (+5 V)
82 – 85
TSTOUT0 – 3
O
TEST key output pin of 4
×
8 matrix (Not used in this set.)
86 – 93
TSTIN0 – 7
I
TEST key input pin of 4
×
8 matrix (Not used in this set.)
94
TEST/VPP
—
Fixed at “L” in this set.
95
DCS1
I
Disc with/without detection 1 switch (S611) input (“H” : with disc)
96
DCS2
I
Disc with/without detection 2 switch (S612) input (“H” : with disc)
97
DCS3
I
Disc with/without detection 3 switch (S613) input (“H” : with disc)
98
DCS4
I
Disc with/without detection 4 switch (S614) input (“H” : with disc)
99
DCS5
I
Disc with/without detection 5 switch (S615) input (“H” : with disc)
100
DCS6
I
Disc with/without detection 6 switch (S616) input (“H” : with disc)
18
18
MDX-66XLP
4-2. BLOCK DIAGRAM
+9V
DCS6
DCS1
8
FOCUS
6
DRIVER
CONTROL
15
16
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
IC300
29
TRACKING
31
DRIVER
CONTROL
22
21
26
M902
(SLED)
24
DRIVER
CONTROL
19
20
M
13
M901
(SPINDLE)
11
DRIVER
CONTROL
17
18
M
7
4
6
9
11 APC
10 PD
LD
AUTOMATIC
POWER CONTROL
Q100
RF AMP
IC100
SWDT
SCLK
RFO 46
AGCI 40
DETECTOR
D/A CONVERTER
IC500
ELEVATOR MOTOR DRIVE
IC700
7
M904
(ELEVATOR)
9
DRIVER
CONTROL
4
2
M
LOADING MOTOR DRIVE
IC701
7
M903
(LOADING)
9
DRIVER
CONTROL
4
2
M
5
2
8
1
F
F
C
C
B
B
J
J
A
A
D
D
E
E
I
I
PD
SWDT
SCLK
XLAT
XLAT 18
16
17
RF 38
TE
SE
ADFG 32
26
28
FE
BOTM 36
34
PEAK
ABCD
37
35
78 ADFG
74 SE
75 TE
57 RFI
67 AUX1
PEAK HOLD
Q200
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR
IC200
63 PEAK
64 BOTM
66 FE
65 ABCD
83 APC REF
APC REF 12
88 FFDR
89 FRDR
86 TFDR
85 TRDR
93 SPRD
94 SPFD
91 SRDR
92 SFDR
XLAT
XLAT
7
SCLK
SCLK
6
SWDT
SWDT
5
XRST
XRST
10
15 RSTB
XINT
XINT
14
SRDT
SRDT
8
SQSY
SQSY
11
DOUT
DOUT
21
DADT
FS256
28
26
XBCK
LRCK 27
29
6
18
17
74
56
57
58
59
67
EMPH O
MNT0
MNT1
MNT2
MNT3
SENS
9
12
MUTE
DMI
VOUTR
R-CH
VOUTL
XTI
5 DATA
4
BCK
1
LRCK
XRST
XLAT
SWDT
SCLK
XINT
4
3
21 CC XINT
SRDT
2
1
40 MD SI
SQSY
6
5
18 SQ SY
DOUT
71 MD RST
70 MD LAT
41 MD SO
42 MD CKO
LEVEL SHIFT
IC602
1 M1
2 M1
3 M2
4 M2
S901
(HOME POSITION DET)
8 HOME
6 LES
69 DOORSW
S400
(LIMIT)
68 LIMIT SW
27 EHS
7 SES
95
ı
100
MDMON 5
TEMP 26
7
8
4
11
6
9
10
2
13
BUS INTERFACE
IC900
SYS RST
BATT
B/U+5V
BUS CLK
BUS DATA
BUS ON
RESET
SW
SW
RESET 15
UNI CKI 47
UNISO 46
UNISI 45
BUS ON 17
IC601
RESET
+
–
–
5
LINE AMP
IC930
7
6
MUTING
Q920
MUTING
Q910
6
4
7
3
1
2
5
CN900
CN902-1
CN902-2
L
R
A ATT 75
R-CH
BU IN 16
BATTERY DET
Q940, 941
AUDIO
OUT
+9V REG.
Q931
P/U+5V
DRV+5V
4
2
1
INPUT
VCC
OUT
DRIVE
+5V REG.
Q972
+3V REG.
Q800, 801
+3.3V
LAMP DRIVE
Q600, 601
8
IC970
REGULATOR CONTROL
PL620
(ILLUMINATION)
14
13
X601
32.768kHz
11
10
X600
14MHz
X2
X1
XT2
XT1
19
STR SW
S600
STOP
SYSTEM CONTROL
IC600
(BUS CONTROL OUT)
OPTICAL PICK-UP BLOCK
MUTING
SWITCH
SWITCH
Q500
MUTING
CONTROL
SWITCH
Q932
B+ SWITCH
Q930,970
B/U+5V
B/U+5V
B+ SWITCH
Q602
+6V REG.
Q950
XOE
XCAS
43
44
A09
XRAS 46
45
49
·
48
·
50
·
51
1
·
2
·
24
·
25
22 OE
23 CAS
23 CAS
5 A9
4 RAS
4 RAS
D3
D0
AO8
D3
D0
A8
RAM
IC201
34
ı
31
·
36
ı
40
9
ı
12
·
14
ı
18
AO0
A0
XWE 47
3 WE
OSCI
16
X200
45MHz
MNT0
MNT1
MNT2
MNT3
SENS
MNT0
MNT1
MNT2
MNT3
SENS
SENS 9
MNT3 4
MNT2 3
MNT1 2
MNT0 1
LEVEL SHIFT
IC603
RV901
ELEVATOR HEIGHT
SENSOR
S611-616
DISC WITH/
WITHOUT DET
S902
LOADING END
SENSOR DET
S620
FRONT DOOR
OPEN DET
S903
STORE END
SENSOR DET
Signal Path
: PB
TH600
OSC
BUFFER
IC203
12
13
10
11
8
9
6
5
4
3
8
9
19
19
MDX-66XLP
4-3. CIRCUIT BOARDS LOCATION
SENSOR board
POWER board
SERVO board
LAMP board
MAIN board
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from Master unit.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PB
no mark : PB
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
E
: PB
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole. (Servo and Power Sections)
•
z
: Through hole. (Main Section)
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
20
20
MDX-66XLP
4-4. PRINTED WIRING BOARD — SERVO SECTION — • Refer to page 19 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
SERVO BOARD (SIDE B)
S400
• Waveforms — Servo Board —
1
2
3
IC200
wj
(LRCK)
3.2Vp-p
4
100mV/DIV, 10µsec/DIV
IC100
1
,
2
(I, J)
PLAY MODE
150mVp-p
5
500mV/DIV, 1µsec/DIV
IC100
ek
(RF) PLAY MODE
Approx.
150mVp-p
150mVp-p
200mV/DIV, 10µsec/DIV
IC100
4
(A) PLAY MODE
2Vp-p
3.2Vp-p
22.7µsec
IC200
wk
(XBCK)
354nsec
100mV/DIV, 10µsec/DIV
IC100
8
(E) PLAY MODE
100mV/DIV, 10µsec/DIV
IC100
9
(F) PLAY MODE
6
7
8
9
400mVp-p
Approx.
150mVp-p
150mVp-p
Approx.
150mVp-p
150mVp-p
Approx.
1.1Vp-p
1.1Vp-p
200mV/DIV, 0.5msec/DIV
IC100
ef
(FE) PLAY MODE
IC200
yh
(FE) PLAY MODE
500mV/DIV, 0.5msec/DIV
IC100
wh
(TE) PLAY MODE
IC200
ug
(TE) PLAY MODE
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