Sony CX-LEM300 / XR-EM300 Service Manual ▷ View online
17
17
CX-LEM300
6-1. Block Diagram – CD Section –
: CD
• Signal Path
SQSO
SQCK
A/D
CONVERTER
CH1OUTF
CH1OUTR
6
7
8
9
16
18
11
10
12
2
1
51
49
48
43
24
41
40
39
64 15
28
29
30
31
32
33
24
25
23
5
6
2
3
17
18
15
16
E
B
C
D
A
CD +5V
F
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RFAC
FE
IC103
RF AMP,
FOCUS/TRACKING ERROR AMP
TE
E
F
F I-V AMP
E I-V AMP
Q101
AUTOMATIC
POWER
CONTROL
APC LD
AMP
LD
LD
PD
LASER DIODE
RFAC
ASYO
ASYI
ASYMMETRY
CORRECTION
CORRECTION
DIGITAL
PLL
IC101 (1/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
DATA
XLAT
CLOK
14
5
6
MDP
26
7
8
XLON
3
XRST
DIGITAL
CLV
D/A
INTERFACE
SE
TE
FE
RFDC
FOCUS/TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4SIN
CH3RIN
CH3OUTF
CH3OUTR
CH2FIN
CH2RIN
CH1FIN
CH1RIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
S101
(LIMIT)
EMPH
WFCK
GFS
MIRR/DFCT/
FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
18
63
62
61
19
19
SENS
20
86
97
87
94
3
SCOR
C-SQSO
C-SQCK
C-XLT
C-CLK
C-DATA
C-SENS
S-SCOR
1 2
96 88
SCLK
COUT
9 21
SSTP
27
FOK
22
23
MIRR
DFCT
TO SERVO INTERFACE
CH4OUTF
CH4OUTR
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
CH2OUTF
CH2OUTR
M
M
(SLED)
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IC101 (2/2)
DIGITAL SERVO
PROCESSOR
OPTICAL PICK-UP
BLOCK
KSM-213EDP
SW
PD
I-V AMP
12
11
13
14
54
56 53
55
FILTER
FILO
PCO
CLTV
FILI
EFM
DEMODULATOR
SERIAL
IN
INTERFACE
DIGITAL
FILTER,
NOISE SHAPER
PWM
&
INTEGRATOR
BUFFER
CLOCK
GENERATOR
TIMING
LOGIC
DIGITAL
OUT
INTERNAL BUS
16K
RAM
ERROR
CORRECTOR
SUBCODE
PROCESSOR
60
85
C-XRST
XTAI
X101
16.9344MHz
AIN1
AIN2
AOUT1
AOUT2
TO MIRR/DFCT/
FOK DETECTOR
FOK DETECTOR
PCMD
BCK
LRCK
C2PO
C2PO
DOUT
66
XTAO
67
70
77
LOUT1
LOUT2
R-CH
72
75
71
76
A
MAIN SECTION
EQ
IN
15
3
4
EQ
AC
SUM
17
FEI
RF DC
AMP
28
RFDCO
29
RFDCI
COIL
DRIVE
COIL
DRIVE
2
1
C-PWM2
C-PWM1
PWM3
PWM2
PWM3
PWM2
95 C-LDOM
IC801 (1/2)
CD
L-CH
RFAC
VCA
+7V
+7V
+5V
SYSTEM CONTROLLER
+3.3V
REG
Q102
CD +5V
REG
Q317
18
18
CX-LEM300
6-2. Block Diagram – Main Section –
• R-CH is omitted due to same as L-CH.
: TUNER
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
BIAS
OSC
Q307
+10V
ERASE
HEAD
REC/PB
HEAD
DECK
TU COUNT
99
TU CLK
100
TU CE
84
SYSTEM CONTROL
IC801 (2/2)
TU DATA
98
L
R
AUX IN
J303(1/2)
SUB
WOOFER
J303(2/2)
J301
HEADPHONES
R-CH
L
R
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC802
S801-806
D811
ECO
TUNER PACK
L-CH
R-CH
R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
TU TUNED
93
REC/PB
SWITCH
Q326-332
T301
BIAS OSC
Q308
MECHANISM BLOCK
PLAY
T SOL
DRIVE
DRIVE
Q321,322
MOTOR
DRIVE
Q323,325
TA REC/PB
77
TA BIAS
74
TA SW
24
32.768kHz
12
32.768kHz
13
X801
32.768kHz
8.64MHz
15
8.64MHz-EXTAL
16
X802
8.64MHz
9
AMP MUTE
29
RMC
FUCTION
KEY
S807-813
19
KEY2
VOL
ENCODER
RV801
22
VOL.ENC
75
ECO.LED
3
1
RESET
SWITCH
Q815
11
RST
RESET
IC803
1
3
20
I POWER DOWN
D907-910
RELAY
DRIVE
AC
IN
CD POWER
CONTROL
Q320
Q311
RY801
18
KEY1
82
CD
+5V
PB/REC EQ AMP
IC302
AUX L
19
18
OUT L
TU L
23
TAPE L
2
CD L
21
16
OUT R
R-CH
13
CONT
28
REC OUT
TU MUTE
80
RDS-SIG
23
RDS-DATA
91
TU STEREO
92
STEREO
MUTE
FM SOUT
R DATA
R INT
RDS-CLK
27
R-CH
R-CH
L-CH
R REC
T END
M
M1
DECK
MOTOR
R-CH
F-DATA
10
TA PLAY.SW
79
TA MOTOR
6
TA END
5
TA SOL
4
CD OPEN/CLOSE
76 C-DOOR
POWER
AMP
R-CH
J302
SPEAKER
45
47
50
.
52
66
.
SEG1
SEG20
37
44
GRID1
GRID8
FLUORESCENT
DISPLAY
FL801
F1
F2
POWER
CONTROL
D810
µCON +B
+5.6V (SUB)
D813
26
I POWER MONITOR
Q315
LINE
FILTER
LF901
+7V
REG
Q319
+7V
IC302
+5V
+5V
Q309
12
6
5
2
IC303
78
AMP-STNBY
11
FL -26V
D809
µCON +B
+10V
REG
IC305
1
3
T902
POWER
D916-919
D911-914
F1(AC 3.5V)
F2(AC 3.5V)
D922-925
+5V
REG
Q305
(MAIN)
+5V
+5V
REG
Q339
TU +5V
+5V
REG
Q310
+10V
D319-321
POWER AMP
VCC
AC
DET
Q333
IC302
-5V
-5V
REG
Q306
FL -26V
REG
Q334-337
FL -26V
POWER
MONITER
Q338
+5.6V
REG
Q312-314
+10V
D317
8
POWER ON
+5.6V( SUB)
L OUT2
L OUT1
A
CD SECTION
S800
(OPEN)
(MAIN)
TRANSFORMER
T901
POWER
(SUB)
TRANSFORMER
19
19
CX-LEM300
6-3. Printed Wiring Board – CD Section –
IC102
IC101
IC103
TP (VC)
TP (RFAC)
TP (DVC)
CN803
23
1-680-849-
CONTROL
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
Ref. No.
Location
D101
F-5
IC101
E-4
IC102
C-5
IC103
D-2
Q101
C-2
Q102
G-5
• Semiconductor
Location
• See page 15 for Circuit Boards Location.
20
20
CX-LEM300
6-4. Schematic Diagram – CD Section –
K S M - 2 1 3 E D P
CN803
24
0uH
0uH
CONTROL
• See page 16 for Waveforms. • See page 26 for IC Block Diagrams.
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