DOWNLOAD Sony CX-LEM400 / XR-EM400 Service Manual ↓ Size: 3.83 MB | Pages: 43 in PDF or view online for FREE

Model
CX-LEM400 XR-EM400
Pages
43
Size
3.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-lem400-xr-em400.pdf
Date
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Sony CX-LEM400 / XR-EM400 Service Manual ▷ View online

25
25
CX-LEM400
6-9. PRINTED WIRING BOARD  – POWER SECTION –
6-10. SCHEMATIC DIAGRAM  – POWER SECTION –
AC
IN
T901
POWER
TRANSFORMER
(SUB)
T902
POWER
TRANSFORMER
(MAIN)
TO
MAIN
BOARD
CNP305
(Page 21)
1
2
A
B
C
D
E
F
3
4
5
6
7
RY901
D906
D9
1
7
D
9
1
6
LF901
C
91
5
D
9
22
D
91
2
R901
R902
D920
D
9
25
D921
R903
C346
D
91
0
D9
09
CN902
CN901
R907
C910
C912
D913
D914
D
9
1
1
C905
C906
C908
C907
D918
D919
C916
D924
D923
C913
C914
C911
C909
D907
D908
T901
T902
1SS133T-77
1
N
54
0
1
1N
54
01
0.0
22
1N
4
00
2
B
1N
40
0
2
47k
47k
AC IN
1SS133
1
N
4
00
2B
1SS133
JUMPER
16
1N
4
002
B
1N
40
02B
2P
10P
100
0.022
0.022
1N4002
1N4002
1
N40
02
0.022
0.022
0.022
0.022
1N5401
1N5401
0.022
1N4002B
1N4002B
0.022
0.022
0.022
0.022
1N4002B
1N4002B
22
Ref. No.
Location
D906
C-3
D907
C-3
D908
C-3
D909
A-3
D910
B-3
D911
C-4
D912
C-3
D913
C-3
D914
C-3
D916
B-2
D917
B-2
D918
B-2
D919
B-2
D920
B-2
D921
B-2
D922
D-3
D923
D-3
D924
D-3
D925
D-3
• Semiconductor
Location
26
26
CX-LEM400
LEVEL SHIFT
INTERFACE
INTERFACE
INTERFACE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
22
23
24
25
26
27
28
19
18
17
16
15
F
R
R
F
F
R
R
F
R
R
F
F
MUTE
THERMAL
SHUTDOWN
VREFOUT
VREFIN
POWVCC
CH1FIN
CH1RIN
CH2FIN
CH2RIN
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
CAP
AIN1
CAP
AIN2
GND
PRFVCC
MUTE
POWVCC
CH4SIN'
CH4SIN
CH4BIN
CH3FIN
CH3RIN
CH3OUTR
CH3OUTF
CH4OUTR
CH4OUTF
CAP
AIN3
GND
•  IC Block Diagrams
IC101
CXD3017Q
IC102
BA5974FP-E2
TE
RFDC
CE
IGEN 
AVSS0 
ADIO 
AVDD0
CLTV
FILO
AVSS3
VSS
AVDD3
DOUT
VDD
PCO
FILI
ASYO
ASYI
RFAC
BIAS
SSTP
DFCT
MIRR
MDP
LOCK
FOK
SFDR
VSS
TEST
FRDR
FE
VC
COUT
SE
XTSL
TES1
SRDR
TFDR
FFDR
TRDR
2
1
70
71
68
69
66
67
64
65
62
61
63
73
74
72
75
76
77
78
79
80
4
XRST
3
SQCK
SQSO
5
9
8
7
6
56
60
53
54
55
59
57
58
51
52
48
49
50
47
44
45
46
43
41
42
XLAT
CLOK
SENS
SYSM
DATA
XUGF
XPCK
GFS
C2PO
WFCK
10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
32
33
30
31
36
37
34
35
39
40
38
28
27
29
SPOA
ATSK
SCLK
VDD
SCOR
SPOB
XLON
XTAI
XVDD
EMPH
AVDD1
AOUT1
AIN1
XTAO
XVSS
AIN2
AOUT2
AVDD2
RMUT
LOUT2
LOUT1
BCK
LRCK
PCMD
LMUT
AVSS1
AVSS2
CPU
INTERFACE
SERVO AUTO
SEQUENCER
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
3rd ORDER
NOISE SHAPER
PWM
PWM
EFM
DEMODULATOR
TIMING
LOGIC
DIGITAL
OUT
D/A
INTERFACE
DIGITAL
PLL
ASYMMETRY
CORRECTOR
CLOCK
GENERATOR
MIRR, DFCT,
FOK
DETECTOR
DIGITAL
CLV
SUBCODE
PROCESSOR
SERVO
INTERFACE
SERVO DSP
FOCUS
SERVO
TRACKING
SERVO
SLED
SERVO
PWM GENERATOR
FOCUS PWM
GENERATOR
TRACKING
PWM GENERATOR
SLED PWM
GENERATOR
16K
RAM
ERROR
CORRECTOR
INTERNAL BUS
A/D
CONVERTER
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
– CD Board –
• Waveforms
– 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)
– MAIN Board –
5
 Q307 Collector 
2V/DIV, 4 
µ
s
/DIV
8.4Vp-p
12 
µ
s
– CONTROL Board –
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 
27
CX-LEM400
IC103
CXA2581N-T4
RW/ROM
RW/ROM
EQ ON/OFF
VOFST
VOFST
DVC
VC
VC
VC
RW/ROM
VC
DVC
30
29
28
+
–
+
–
DVC
VCC
DVC
27
26
25
24
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
A
A
A
B
C
D
B
C D
D
+
–
1
2
APC AMP
5
6
7
8
9
4
RFAC
SUMMING
AMP
RW/ROM
APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11
GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ IN
LD
PD
GND
A
B
C
D
AC SUM
E
F
DVCC
DVC
RFAC
SW
DC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
– BD Board –
28
CX-LEM400
IC302
BD3881FV
– MAIN Board –
IC303
LA4628
REC-O_L
REC-O_R
TUNER-R
TUNER-L
CD-L
A
UX-L
OUT
-L
OUT
-R
T
ON_L-L
T
ON_L-R
A
UX-R
CD-R
VSS
T
ON_H-R
T
ON_H-L
T
APE-L
T
APE-R
BIAS CIRCUIT
ST
ANDBY
SW
POP NOISE
PREVENTION 
CIRCUIT
PREDRIVER
PREDRIVER
PO
WER
PO
WER
LO
AD SHOR
T
PR
O
T
ECT
OR
OUTPUT 
PIN T
O
 VCC
SHOR
T PR
O
T
ECT
OR
OUTPUT PIN 
T
O
 GND
SHOR
T PR
O
T
ECT
OR
PREDRIVER
PREDRIVER
PO
WER
PO
WER
OV
E
R
 V
O
LT
A
GE/
SURGE
THERMAL SHUT DO
WN
LO
AD SHOR
T
PR
O
T
ECT
OR
VCC
POWER
GND2
+
–
IN
+
–
IN
IN2
RIPPLE
FILTER
CIRCUIT
1
3
4
5
6
7
8
9
10
2
IN1
PREGND
STBY
MUTE
IN2
POP
+OUT2
-OUT2
PWR-GND2
FILTER
+OUT1
PWR-GND1
-OUT1
VCC
OUTPUT 
PIN T
O
 VCC
SHOR
T PR
O
T
ECT
OR
OUTPUT PIN 
T
O
 GND
SHOR
T PR
O
T
ECT
OR
POWER
GND1
11
12
13
14
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