Sony MDX-CA790X Service Manual ▷ View online
MDX-CA790X
33
33
5-15. SCHEMATIC DIAGRAM – KEY Section –
•
See page 31 for Waveform.
R990
R986
R988
R987
C971
R983
R982
R981
LSW901(1/2)
LSW904(1/2)
LSW905(1/2)
LSW906(1/2)
LSW907(1/2)
LSW908(1/2)
LSW909(1/2)
LSW910(1/2)
LSW912(1/2)
LSW913(1/2)
LSW914(1/2)
LSW915(1/2)
LSW916(1/2)
LSW917(1/2)
LSW918(1/2)
LSW919(1/2)
LSW920(1/2)
LSW921(1/2)
LSW922(1/2)
IC901
IC971
R972
R979
R980
R978
R975
R976
R977
R985
C984
C983
C985
R989
C982
C981
D983
C986
LED903
LED953
R966
R967
R960
R961
R962
R951
R950
R946
R947
R942
R941
R935
R936
R934
LED951
LED911
R931
R930
LED933
LED934
S911
S902
S903
R911
R901
R902
R912
R913
R903
R904
R914
R915
R905
R906
R916
R917
R907
R908
R918
R919
R909
R910
R920
R921
R971
CN901
LCD901
R970
D901
R927
R928
R929
D902
LED952
LSW913(2/2)
LSW912(2/2)
LSW915(2/2)
LSW916(2/2)
LSW917(2/2)
LSW918(2/2)
LSW901(2/2)
LSW914(2/2)
LSW919(2/2)
LSW920(2/2)
LSW921(2/2)
LSW922(2/2)
LED954
LSW907(2/2)
LSW908(2/2)
LSW904(2/2)
LSW906(2/2)
LSW909(2/2)
LSW910(2/2)
LSW905(2/2)
D981
1M
1k
1k
1k
0.1
150
150
150
LC75874W
RS-770
100
470
470
470
470
470
470
0
0.1
0.1
1000p
39k
0.022
0.022
MA111
0.22
CL-195SR
CL-195SR
100
330
100
100
150
68
100
100
68
68
100
100
68
47
CL-195SR
CL-195SR
470
47
NSCW505T-ARS
NSCW505T-ARS
680
680
680
680
680
680
1k
1k
1.5k
1.5k
1.5k
1.5k
2.2k
2.2k
3.3k
3.3k
4.7k
4.7k
6.8k
6.8k
10k
1k
14P
0
UMZ6.8ENTR
100
68
47
UDZS-18B
CL-195SR
CL-195SR
UDZS-5.1B
S
E
G
2
9
S
E
G
3
0
S
E
G
3
1
S
E
G
3
2
S
E
G
3
3
S
E
G
3
4
S
E
G
3
5
S
E
G
3
6
S
E
G
3
7
S
E
G
3
8
S
E
G
3
9
S
E
G
4
0
S
E
G
4
1
S
E
G
4
2
S
E
G
4
3
S
E
G
4
4
S
E
G
4
5
S
E
G
4
6
S
E
G
4
7
S
E
G
4
8
S
E
G
4
9
S
E
G
5
0
S
E
G
5
1
S
E
G
5
2
S
E
G
5
3
S
E
G
5
4
S
E
G
5
5
S
E
G
5
6
S
E
G
5
7
S
E
G
5
8
S
E
G
5
9
S
E
G
6
0
S
E
G
6
1
S
E
G
6
2
S
E
G
6
3
S
E
G
6
4
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
SEG40
S
E
G
41
S
E
G
4
2
S
E
G
43
S
E
G
4
4
S
E
G
45
S
E
G
46
S
E
G
47
S
E
G
48
S
E
G
49
S
E
G
5
0
S
E
G
51
S
E
G
52
S
E
G
5
3
S
E
G
54
S
E
G
55
S
E
G
5
6
S
E
G
5
7
S
E
G
5
8
S
E
G
59
S
E
G
6
0
SEG61
SEG62
SEG63
SEG64
COM1
COM2
COM3
COM4
CL
CE
DI
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
1
1
S
1
2
S
1
3
S
1
4
S
1
5
S
1
6
S
1
7
S
1
8
S
1
9
S
2
0
S
1
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S
9
S
1
0
S
1
1
S
1
2
S
1
3
S
1
4
S
1
5
S
1
6
S
1
7
S
1
8
S
1
9
S
2
0
S
2
1
S
2
2
S
2
3
S
2
4
S
2
5
S
2
6
S
2
7
S
2
8
DI
CE
CL
C
O
M
1
C
O
M
2
C
O
M
3
C
O
M
4
C
O
M
1
C
O
M
2
C
O
M
3
C
O
M
4
DOOR-SW
+B
CLK-LCD
CE-LCD
DATA-LCD
NC
GND
GND
NC
KEY-1
KEY-0
+B
SIRCS
VDD
VLCD
VLCD2
VLCD3
VSS
OSC
INH
CE
CL
DI
NC
REMOTE CONTROL
RECEIVER
SEG61
SEG62
SEG63
SEG64
COM1
COM2
COM3
COM4
SEG60
S
EG
59
SEG
50
S
EG5
1
S
EG
5
2
S
EG
53
S
EG
5
4
SEG
55
SEG
5
6
SEG
57
SEG
58
S
EG4
9
S
EG
48
S
EG
4
7
SEG
46
SEG
45
SEG
44
S
EG
4
3
SEG
42
SEG41
SEG40
SEG30
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG21
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
LIQUID CRYSTAL DISPLAY
S
1
S
20
S
19
S
18
S17
S
16
S15
S
14
S13
S12
S11
S10
S
2
S
3
S
4
S
5
S
6
S
7
S
8
S9
CO
M
1
C
O
M
2
C
O
M
3
CO
M
4
C
O
M
2
COM
3
C
OM
4
C
OM
1
S28
S
27
S2
6
S
25
S
24
S
23
S22
S21
S
EG40
SEG
30
SEG
39
S
EG38
S
EG
37
SEG
36
SEG
35
SEG
34
SEG
33
S
EG
32
SEG
31
SEG
29
SEG
60
SE
G
59
S
EG50
SEG51
S
EG
52
S
EG53
SEG
54
S
EG
5
5
SE
G
56
SE
G
57
SE
G
58
SEG
49
S
EG
48
SEG
47
SEG
46
S
EG
45
S
EG
44
S
EG
43
S
EG
42
S
EG
41
SEG
61
SE
G6
2
SE
G
63
S
EG
64
DSPL
EQ3
5
6
SHUF
4
REP
3
DISC +
2
DISC -
1
TA
LIST
PTY
OFF
SOURCE
SENS
ATT
SEL
DSO
AF
(LCD BACK LIGHT)
LED933,934
SEG
1
SE
G2
SEG
3
SEG
4
SE
G
5
SE
G
6
SE
G
7
SEG
8
SEG
9
SE
G10
SEG
11
SE
G12
SEG
13
SEG
14
SEG
15
SE
G
16
SE
G
17
SEG
18
SEG
19
SEG
20
LED903,911,951-954
(KEY ILLUMINATION)
(VOLUME)
(VOLUME)
+
-
BTM
GP/ALBM +
GP/ALBM -
SEEK +
SEEK -
LCD DRIVER
MODE
(Page 31)
MDX-CA790X
34
34
•
SERVO BOARD IC1 CXA2523AR (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No.
Pin Name
I/O
Description
1
I
I
I-V converted RF signal I input from the optical pick-up block detector
2
J
I
I-V converted RF signal J input from the optical pick-up block detector
3
VC
O
Middle point voltage (+1.65V) generation output terminal
4 to 9
A to F
I
Signal input from the optical pick-up detector
10
PD
I
Light amount monitor input from the optical pick-up block laser diode
11
APC
O
Laser amplifier output terminal to the automatic power control circuit
12
APCREF
I
Reference voltage input terminal for setting laser power
13
GND
—
Ground terminal
14
TEMPI
I
Connected to the temperature sensor Not used
15
TEMPR
O
Output terminal for a temperature sensor reference voltage Not used
16
SWDT
I
Writing serial data input from the MD DSP
17
SCLK
I
Serial data transfer clock signal input from the MD DSP
18
XLAT
I
Serial data latch pulse signal input from the MD DSP
19
XSTBY
I
Standby signal input terminal “L”: standby (fixed at “H” in this set)
20
F0CNT
I
Center frequency control voltage input terminal of internal circuit (BPF22, BPF3T, EQ) input
terminal
terminal
21
VREF
O
Reference voltage output terminal Not used
22
EQADJ
I
Center frequency setting terminal for the internal circuit (EQ)
23
3TADJ
I
Center frequency setting terminal for the internal circuit (BPF3T)
24
VCC
—
Power supply terminal (+3.3V)
25
WBLADJ
I
Center frequency setting terminal for the internal circuit (BPF22)
26
TE
O
Tracking error signal output terminal
27
CSLED
I
Connected to the external capacitor for low-pass filter of the sled error signal
28
SE
O
Sled error signal output terminal
29
ADFM
O
FM signal output of the ADIP
30
ADIN
I
Receives a ADIP FM signal in AC coupling
31
ADAGC
I
Connected to the external capacitor for ADIP AGC
32
ADFG
O
ADIP duplex signal (22.05 kHz
± 1 kHz) output terminal
33
AUX
O
Auxiliary signal (I
3
signal/temperature signal) output terminal
34
FE
O
Focus error signal output terminal
35
ABCD
O
Light amount signal (ABCD) output terminal
36
BOTM
O
Light amount signal (RF/ABCD) bottom hold output terminal
37
PEAK
O
Light amount signal (RF/ABCD) peak hold output terminal
38
RF
O
Playback EFM RF signal output terminal
39
RFAGC
I
Connected to the external capacitor for RF auto gain control circuit
40
AGCI
I
Receives a RF signal in AC coupling
41
COMPO
O
User comparator output terminal Not used
42
COMPP
I
User comparator input terminal Not used
43
ADDC
I
Connected to the external capacitor for cutting the low band of the ADIP amplifier
44
OPO
O
User operational amplifier output terminal Not used
45
OPN
I
User operational amplifier inversion input terminal Not used
46
RFO
O
RF signal output
47
MORFI
I
Receives a MO RF signal in AC coupling
48
MORFO
O
MO RF signal output
5-16.
IC PIN FUNCTION DESCRIPTION
•
SERVO BOARD IC4 CXD2667R (MD DSP)
Pin No.
Pin Name
I/O
Description
1
GFS/SLD
O
GFS output or sled servo drive signal output terminal Not used
2
VDIO3
—
Power supply terminal (+3.3V)
3
VSIO3
—
Ground terminal
4
VDC0
—
Power supply terminal (+2.5V)
5
MNT0
I/O
Busy monitor signal input or output terminal Not used
6
MNT1
O
Busy monitor signal output terminal Not used
7
MNT2
O
Busy monitor signal output to the MD mechanism controller (reserve terminal)
8
MNT3
O
Busy monitor signal output terminal Not used
9
SWDT
I
Writing serial data input from the MD mechanism controller
10
SCLK
I
Serial data transfer clock signal input from the MD mechanism controller
11
XLAT
I
Serial data latch pulse input from the MD mechanism controller
12
VSC0
—
Ground terminal
13
SRDT
O
Reading serial data output to the MD mechanism controller
14
SENS
O
Internal status (SENSE) output to the MD mechanism controller
15
XRST
I
System reset signal input from the MD mechanism controller “L”: reset
16
SQSY
O
Subcode Q sync (SCOR) output to the MD mechanism controller
“L” is output every 13.3 msec Almost all, “H” is output
“L” is output every 13.3 msec Almost all, “H” is output
17
XTSL
I
Frequency setting terminal for the system clock
“L”: 45.1584 MHz, “H”: 22.5792 MHz (fixed at “H” in this set)
“L”: 45.1584 MHz, “H”: 22.5792 MHz (fixed at “H” in this set)
18
DATAI
I
Digital audio signal input terminal when recording mode Not used
19
VDIOSC
O
Power supply terminal (+3.3V)
20
OSCI
I
System clock input terminal (22.57 MHz)
21
OSCO
O
System clock output terminal (22.57 MHz)
22
VSIOSC
—
Ground terminal
23
DAVSSL
—
Ground terminal
24
VREFL
O
Capacitor connecting terminal for reference voltage of internal D/A converter
25
AOUTL
O
L-ch analog audio signal output terminal
26
DAVDDL
—
Power supply terminal (+3.3V)
27
DAVDDR
—
Power supply terminal (+3.3V)
28
AOUTR
O
R-ch analog audio signal output terminal
29
VREFR
O
Capacitor connecting terminal for reference voltage of internal D/A converter
30
DAVSSR
—
Ground terminal
31
VSC1
—
Ground terminal
32
VDC1
—
Power supply terminal (+2.5V)
33
MTFLGL
O
L-ch zero-data or L-ch + R-ch zero-data detection flag output terminal Not used
34
DOUT
O
Digital audio signal output terminal when playback mode Not used
35
XINT
O
Interrupt request signal output to the MD mechanism controller
36
DADT
O
Playback data output to the D/A converter Not used
37
LRCK
O
L/R sampling clock signal (44.1 kHz) output to the D/A converter Not used
38
XBCK
O
Bit clock signal (2.8224 MHz) output to the D/A converter Not used
39
FS256
O
256Fs = 11.2896 MHz clock signal output terminal Not used
40
VDIO1
—
Power supply terminal (+3.3V)
41 to 44
A03 to A00
O
Address signal output terminal Not used
45
A10
O
Address signal output terminal Not used
46 to 50
A04 to A08
O
Address signal output terminal Not used
35
MDX-CA790X
Pin No.
Pin Name
I/O
Description
51
A11
O
Address signal output terminal Not used
52
VSIO1
—
Ground terminal
53
XOE
O
Output enable signal output terminal Not used
54
XCAS
O
Column address strobe signal output terminal Not used
55
A09
O
Address signal output terminal Not used
56
XRAS
O
Row address strobe signal output terminal Not used
57
XWE
O
Write enable signal output terminal Not used
58
DVDD
—
Power supply terminal (+3.3V)
59
DVSS
—
Ground terminal
60
D1/GFS
I/O
Two-way data bus or GFS output terminal Not used
61
D0/FOK
I/O
Two-way data bus or focus OK signal output terminal Not used
62, 63
D2, D3
I/O
Two-way data bus terminal Not used
64
FFDR
O
Focus servo drive PWM signal (+) output terminal
65
FRDR
O
Focus servo drive PWM signal (–) output terminal
66
MVCI
I
Digital in PLL oscillation input from the external VCO Not used
67
ADFG
I
ADIP duplex FM signal (22.05 kHz
± 1 kHz) input terminal
68
VDIO2
—
Power supply terminal (+3.3V)
69
VSIO2
—
Ground terminal
70
F0CNT
O
Filter cut-off control signal output terminal Not used
71
XLRF
O
Serial data latch pulse signal output to the RF AMP
72
CKRF
O
Serial data transfer clock signal output to the RF AMP
73
DTRF
O
Two-way data bus with the RF AMP
74
APCREF
O
Control signal output to the reference voltage generator circuit for the laser automatic power
control
control
75
LDDR
O
PWM signal output for laser automatic power control Not used
76
TRDR
O
Tracking servo drive PWM signal (–) output terminal
77
TFDR
O
Tracking servo drive PWM signal (+) output terminal
78
VDC2
—
Power supply terminal (+2.5V)
79
VSC2
—
Ground terminal
80
PEAK
I
Light amount signal (RF/ABCD) peak hold input terminal
81
BOTM
I
Light amount signal (RF/ABCD) bottom hold input terminal
82
ABCD
I
Light amount signal (ABCD) input terminal
83
FE
I
Focus error signal input terminal
84
AUX1
I
Auxiliary signal (I
3
signal/temperature signal) input terminal
85
VC
I
Middle point voltage (+1.65V) input terminal
86
ADIO
O
Monitor output of the A/D converter input signal Not used (open)
87
ADRT
I
A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)
88
AVD2
—
Power supply terminal (+3.3V)
89
AVS2
—
Ground terminal
90
ADRB
I
A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)
91
SE
I
Sled error signal input terminal
92
TE
I
Tracking error signal input terminal
93
AUX2
I
Auxiliary signal (I
3
signal/temperature signal) input terminal Not used
94
DCHG
I
Connected to the +3.3V power supply in this set
95
APC
I
Error signal input for the laser automatic power control Not used
96
DDIN
I
Connected to the +3.3V power supply in this set
36
MDX-CA790X
Pin No.
Pin Name
I/O
Description
97
DDOUT
O
Open terminal in this set
98
ASYO
O
Playback EFM full-swing output terminal
99
ASYI
I
Playback EFM asymmetry comparator voltage input terminal
100
AVD1
—
Power supply terminal (+3.3V)
101
BIAS
I
Playback EFM asymmetry circuit constant current input terminal
102
RFI
I
Playback EFM RF signal input terminal
103
AVS1
—
Ground terminal
104
PCO
O
Phase comparison output for master clock of the recording/playback EFM master PLL
105
FILI
I
Filter input for master clock of the recording/playback master PLL
106
FILO
O
Filter output for master clock of the recording/playback master PLL
107
CLTV
I
Internal VCO control voltage input of the recording/playback master PLL
108
VDC3
—
Power supply terminal (+2.5V)
109
VSC3
—
Ground terminal
110
FS4
O
176.4 kHz clock signal output terminal Not used
111
SRDR
O
Sled servo drive PWM signal (–) output terminal
112
SFDR
O
Sled servo drive PWM signal (+) output terminal
113
SPRD
O
Spindle servo drive PWM signal (–) output terminal
114
SPFD
O
Spindle servo drive PWM signal (+) output terminal
115
FGIN
I
FG input for spindle CAV servo Not used
116 to 118
TEST1 to TEST3
I
For test terminal
119
MTFLGR/TRK
O
R-ch zero-data detection flag output or tracking servo drive signal output terminal Not used
120
FOK
O
Focus OK signal output terminal “H”: focus OK
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