Sony CX-LEMV300 / XR-EMV300 Service Manual ▷ View online
17
CX-LEMV300
SECTION 6
DIAGRAMS
• Circuit Boards Location
BD board
V-OUT board
MAIN board
REGULATOR board
MIC JACK board
MIC/ECHO board
VCD board
POWER board
FRONT board
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: B– Line.
• V oltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• W aveforms 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.
F
: TUNER
J
: CD
L
: VIDEO
d
: AUX
E
: PB (TAPE)
a
: REC (TAPE)
d
: MIC
• A bbreviation
MY
: Malaysia model.
SP
: Singapore model.
TH
: Thai model.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• Indication of transistor
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
B
These are omitted.
C
E
Q
18
CX-LEMV300
• Waveforms
– BD Board –
– BD Board –
1.2Vp-p
1
TP8 (RFAC)
200mV/DIV, 1
µ
s
/DIV
2
IC101
us
(XTAO)
1V/DIV, 40ns/DIV
3.3Vp-p
59.1ns (16.9MHz)
3
IC801
qh
(8.64MHz-
EXTAL)
1V/DIV, 40ns/DIV
4.0Vp-p
115ns
4
IC801
qd
(32.768kHz)
1V/DIV, 10
µ
s
/DIV
5.3Vp-p
30.5
µ
s
5
Q307 Collector (REC mode)
2V/DIV, 4
µ
s
/DIV
8.6Vp-p
12
µ
s
– FRONT Board –
– MAIN Board –
6
IC802
ua
(XOUT)
1V/DIV, 10ns/DIV
4.6Vp-p
37 ns
– VCD Board –
19
19
CX-LEMV300
6-1. BLOCK DIAGRAM – BD SECTION –
: CD
• Signal Path
OPTICAL PICK-UP
BLOCK (A-MAX.D)
BLOCK (A-MAX.D)
PD1
PD2
I5-10
I1-6
LD
VC
VCC
7
5
3
1
2
4
+
3.3V
GND
IL-SW
PD
VR
LD
DRIVE
FOCUS
COIL
TRACKING
COIL
Q101
RF AMP
IC103
VC
27
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
IC102
MOTOR/COIL DRIVE
VO1+
52
VO1-
47
VO2+
56
VO2-
55
VO3+
2
VO3-
1
M
(SLED)
M102
M101
VO4+
10
VO4-
5
M
(SPINDLE)
F+
F-
T+
T-
35
IN1+
34
IN1-
32
IN2+
31
IN2-
27
IN3+
26
IN3-
24
IN4R
8
STBY
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SIGNAL PROC.
IC101
DIGITAL SERVO
RFAC
50
29
RFDCI
28
RFDC
16
FE
17
FEI
12
SW
TE_BAL
RFDC
43
FE
39
TE
41
SE
40
SSTP
26
66
PCMD
4
DATA
16.9344MHz
6
CLOK
5
XLAT
DATA
XLAT
77
SQCK
SQCK
8
SCLK
15
SCOR
76
SQSO
2
XRST
XRST
RF-SW
PWM3
PWM2
PWM1
7
SENS
SCOR
SQSO
SENS
14
C2PO
C2PO
15
RF AC
18
TE
67
BCLK
65
LRCK
13
GFS
22
FOK
PCMD
CLK
BCLK
LRCK
GFS
FOK
71
XTAI
72
XTAO
19
RV101
X201
AVDD(3.3V)
A
VCD
SECTION
B
VCD
SECTION
C
VCD
SECTION
20
20
CX-LEMV300
6-2. BLOCK DIAGRAM – VCD SECTION –
• Signal Path
: VIDEO
: CD
55-62
68-79,
82-87
13-15,
17-21
12-5,27,
26,23,25,
4,28,29,
3,2,30
64
65
24
22
LOE
AUX7
AUX2
AUX6
AUX6
AOUT/SELPLL0
ACLK
ATCLK
ATPS/SELPLL1
AIN
ARCLK
ARFS
PCLK
PCLK2X
CPUCLK
HSYNC
VSYNC
LSC1
AUX5
AUX4
AUX4
I-CDDATA
I-CDACK
O-CDSTB
O-CDDATA
MCLK
TSD
VIDEO DATA BUS
AUX15
AOL+
L-OUT
R-OUT
AOL-
3
1
IC701(1/2)
AMP
IC701(2/2)
AMP
Q901
BUFFER
7
2
5
6
AOR+
AOR-
VDAC
AUX00
AUX01
XIN
XOUT
TBCK
TWS/PLLOUT
RSD/SPLL0
RBCK/SER IN
PWS/SPLL1
TWS/PLLOUT
RSD/SPLL0
RBCK/SER IN
PWS/SPLL1
PCK
PCK2
DCLK/EXT-CLK
HSYNC
VSYNC
DSC-C
DSC-S
AUX11
PCK2
DCLK/EXT-CLK
HSYNC
VSYNC
DSC-C
DSC-S
AUX11
LSC3
CE
OE
OE
LD0-LD7
32-39
YUV0-YUV7
YUV0-YUV7
DQ0-DQ7
LA0-LA17
A0-A17
8,99,
97,95,
93,85,
93,85,
83,81
DSCD0-DSCD7
IC803
ROM
IC801
VCD MPEG PROCESSOR
IC802
AUDIO DAC, VIDEO DAC, CONTROLLER
IC801 (1/2)
SYSTEM CONTROLLER
89
88
90
91
93
94
95
21
40
17
22
19
33
37
23
54
47
52
95
94
97
96
PWM3
DI
A03
A02
A01
CLK
CLK
LD
PWM2
PWM1
DATA
DATA
D805
XLAT
SQCK
XRST
RF-SW
SCOR
SQSO
SENS
SENS
C2PO
PCMD
CLK
BCLK
LRCK
GFS
GFS
FOK
TDMDP
AUX3
RESET
TDMCLK
TDMFS
AUX0
AUX1
TDMFS
AUX0
AUX1
98,96,
94,92,
94,92,
89-86
43
42
41
40
66
53
49
80
12
82
84
6
10
35
44
79
X801
27MHz
13-28
18-21,
24-28
2-4,
7-10,
35-38,
40-43
15
16
31
3
2
99
WE
RAS
RAS
DWE
CAS
CASL
30
CASH
DBUS0-DBUS15
4-12 MA0-MA8
DQ0-DQ15
A0-A8
29
92
OE
DOE
IC804
DRAM
IC805
DAC
J771
S771
VIDEO OUT
D
MAIN
SECTION
A
BD, CHANGER
SECTION
B
BD, CHANGER
SECTION
C
BD, CHANGER
SECTION
48
64
7
9
74
71
47
45
46
RST 13
NTSC
AUTO
PAL
Q802
RESET
Q309
CD 3.3V
CD+5.8V
+3.3V
REG
Q801
IC801
3.3V
CD+5.8V
+3.3V
REG
97
96
98
45
46
48
29
3
2
1
6
7
8
AUX05
AUX07
AUX12
AUX06
AUX10
AUX14
AUX09
AUX10
AUX14
AUX09
68
AUX08
18
AUX04
69
RSTOUT
AUX02
11
24
67
34
39
20
14
36
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