DOWNLOAD Sony CMT-DC500MD / HCD-J300 Service Manual ↓ Size: 17.2 MB | Pages: 93 in PDF or view online for FREE

Model
CMT-DC500MD HCD-J300
Pages
93
Size
17.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-dc500md-hcd-j300.pdf
Date

Sony CMT-DC500MD / HCD-J300 Service Manual ▷ View online

HCD-J300
41
41
31 
µ
s
3.4Vp-p
1.3Vp-p
0.2Vp-p
1.6Vp-p
3.5Vp-p
176.4kHz
231 ns
4 Vp-p
3.4 Vp-p
100 ns
4.4 Vp-p
63 ns
1
 IC101 
us
 XTAO
VOLT/DIV : 1V AC
TIME/DIV : 20 nsec
4.6 Vp-p
30 ns
2
 IC1001 
w;
 XOUT
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
3
 IC309 
qf
 XO
VOLT/DIV : 1V AC
TIME/DIV : 100 nsec
4
 IC306 
qa
 XCOUT
VOLT/DIV : 1V AC
TIME/DIV : 20 
µ
sec
5
 IC306 
qd
 XOUT
6
 IC101 
ek
 (RF)
VOLT/DIV : 1V AC
TIME/DIV : 40 nsec
7
 IC101 
ef
 (FE)
       (Play mode)
8
 IC101 
wh
 (TE)
       (Play mode)
9
 IC151 
o;
 (FS4)
• Waveforms
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 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.
a
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
A
: B+ Line.
B
: B– Line.
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
g
: VIDEO/MD (AUDIO)
E
: PB (TAPE)
a
: REC (TAPE)
J
: CD (Analog)
c
: CD (DIGITAL OUT)
p
: MD (PB)
l
: MD (REC)
• Abbreviation
HK
: Hong Kong model
SP
: Singapore model
TW
: Taiwan model
Caution:
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)
parts face are indicated.
• Indication of transistor
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
B
These are omitted.
C
E
Note:
The components identi-
fied by mark 
!
 or dotted
line with mark 
!
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
!
 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
HCD-J300
42
42
7-2. BLOCK  DIAGRAM  – CD SECTION –
IC503
• Signal Path
: CD (DIGITAL)
:DIGITAL IN (OPTICAL)
OPTICAL PICK-UP
BLOCK
A
B
E
F
LD
VC
VCC
+5V
GND
PD
VR
LD
DRIVE
Q101
RF AMP
DIGITAL
OPTICAL
IN
IC103
VC
27
VFC
25
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
C
D
IC702
MOTOR/COIL DRIVE
VO1(+)
14
VO1(-)
13
11
12
15
16
M
SLED
MOTOR
18
17
M
SPINDLE
MOTOR
F+
F-
T+
T-
2
OPIN1(+)
3
OPIN1(-)
5
6
27
26
23
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SIGNAL PROCESSOR
IC101
DIGITAL SERVO,
64
D OUT
RFAC
50
28
RFDCO
15
26
RFAC
16
FE
18
TE
12
SW
17
FEI
29
RFDCI
RFDC
43
FE
39
TE
41
SE
40
4
DATA
+3.3V
DATA
6
CLOK
CLK
5
XLAT
XLT
76
SQSO
SQSO
7
SENS
SENS
26 SSTP
2
XRST
9
STBY1
20
STBY2
69
XTSL
MASTER CONTROL
IC306(1/3)
21
OPT-SEL
CD-DATA
34
8
SCLK
77
SQCK
SCLK
15
SCOR
SCOR
71
XTAI
72
XTAO
CD-CLK
27
XLT
22
SQ-DATA-IN
32
SENS
23
SQ-CLK
33
SCOR
19
XTSL
CTRL1(1-2)
3
LDON
LDON
25
CD_XRST
XRST
39
BU_PWM 1
PWM1
28
BU_PWM 2
PWM2
26
BU_PWM 3
PWM3
24
VO2(-)
VO2(+)
VO4(+)
VO4(-)
VO3(-)
VO3(+)
OPIN2(+)
OPIN(2-)
OPIN4(+)
OPIN4(-)
OPIN3(-)
A
MD
SECTION
(Page 44)
RFC
SWITCH
Q102
IC551
+3.3V
REG
Q103,D101
SELECTOR
1
2
3
4
5
6
9
8
10
11
12
13
X101
33.8MHz
S101
LIMIT
IN
SWITCH
+5V
+5V
+3.3V
DIN
HCD-J300
43
43
BLOCK  DIAGRAM  – MAIN SECTION –
: FM
: CD
 • Signal Path
• R-CH is omitted due to same as L-CH.
: PB
: REC
: MD(PLAY)
: MD(REC)
COM8V
TU 1
TUNER UNIT
C1
MD-L
REC-L
5
IC301
SOUND PROCESSOR
32
LINEOUT1
20
OUT1
L-CH
R-CH
CK
DO
DI
CE
TUNED
FM-DET
FM (7.5V)
+B (9.5V)
R-CH
PJ301
L
ANALOG
IN
+
3
IC101
POWER AMP
2
9
14
IC306 (3/3)
MASTER CONTROL
57
STK-POWER
54
AMP_MUTE
53
H/P_MUTE
52
H/P_CHECK
LINE MUTE
58
AC CUT
RESET
STBY
MUTE
12
E1
9
VOL1 29
D1
7
B1
3
CLK
DATA
15 14
Q101
MUTING
Q132
MUTING
Q407
MUTING
Q414
D401
MUTING
R
SPEAKER
10
MUTING
SWITCH
Q330,331
Q902
RELAY
DRIVER
R-CH
SJ301
SWITCH
Q315,316
SWITCH
RESET
SWITCH
Q319
VOL_DATA
VOL_CLK
56
55
ST-CLK
ST-DOUT
ST-DIN
ST-CE
TUNED
70
69
71
72
68
+
3
IC302
HEADPHONE AMP
2
1
L
R
R-CH
J301
50
CD-POWER
POWER-ON
PHONES
BIAS
OSC
Q401
R-CH
L
R
3
1
IC402
4
REC/PB
REC OUT-L
T401
REC BIAS
ERASE HEAD
ERASE BIAS
23
24
B IN-L
A IN-L
19
A/B-SW
REC IN-L
14
PB-L
20
16
TC-MUTE
44
REC/PB/PASS
38
RDS-DATA
51
RDS-INT
18
REC-MUTE
48
+8V
Q402,403
P
R
REC/PB HEAD
X
IC401
PB AMP,REC AMP,ALC
1
+
D906-909
D902-905
B+
SWITCH
Q309-311
+10V
REG
CD +5V
B+
SWITCH
Q303,307,308
TU 9.5V
TU 9.5V
B+
SWITCH
Q304-306
FM 7.5V
FM 7.5V
+4V
REG
IC305
1
3
MD 3.3V
MD A3.3V
MD BACKUP
COM8V
D318
D303
T902
MAIN
TRANSFORMER
T901
SUB
TRANSFORMER
M +7V
+8V
REG
IC313
3
1
+5V
REG
IC314
3
1
+B
(+22.5V)
-B
(-22.5V)
+8V
REG
IC303
3
1
C
AC IN
B/UP 5V
R-CH
5V (IC306,Q319)
3
1
IC316
RESET
2
16
13
14
4
IC309
RDS DECODER
MUX
MD
SECTION
(Page 44)
B  
P.DOWN
DA MUTE
MD RESET
MD
SECTION
(Page 44)
D910-13
CD8V
+12V
REG
IC310
3
1
COM12V
+8V
REG
IC311
3
1
M +10V
+5V
REG
IC315
RY901
3
1
MDM_POWER
D919
D920
D322
D917
POWER AMP
TC 5V
B/UP 5V
MDM5V
2
FM_ON 66
TU_ON 67
20
DA_MUTE
5
MD RESET
49
Q339
SWITCH
Q318
CD8V
AMP
Q329
Q312
+5V
REG
Q901,903
0.22F
0.22F
RDATA
RCLK
XI
XO
AEP,UK
X301
4.332MHz
S901
VOLTAGE
SELECTOR
EXCEPT
SP,HK,TW
EXCEPT
SP,HK,TW
SP,HK,TW
 • Abbreviation
HK   : Hong Kong model
SP   : Singapore model
TW   : Taiwan model
HCD-J300
44
44
BLOCK  DIAGRAM  – MD SECTION –
• Signal Path
             : PLAY (MD)
             : REC (MD)
             : CD (DIGITAL)
             : CD (ANALOG)
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-260B)
Q121, 122
AUTOMATIC
POWER CONTROL
APC
PD
APCREF
AT
AMP
B.P.F.
WBL
ADFM
ADIN
ADFG
ABCD
AMP
ABCD
FE
TE
SE
F0CNT
WBL
3T
EQ
COMMAND
SWDT
SCLK
XLAT
RFO
RF AGC
& EQ
AGCI
EQ
RF
IC101
RF AMP,
FOCUS/TRACKING ERROR AMP
TEMP
MORFO
MORFI
3T
WBL
AUX
PEAK
BOTM
IC141
FOCUS/TRACKING COIL DRIVER,
SPINDLE/SLED MOTOR DRIVER
OUT4F
OUT4R
M101
(SPINDLE)
OUT2F
OUT2R
M102
(SLED)
OUT1F
OUT1R
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
MOD
SPFD
SPRD
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
PSB
PWM GENERATOR
FROM CPU
INTERFACE
IC151 (2/2)
DIGITAL SERVO
SIGNAL PROCESSOR
RECP
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CKRF
DTRF
XLAT
SCLK
SWDT
FILI
PCO
CLTV
FILO
EFMO
ADDT
DADTI
IC151 (1/2)
TX
ASYO
ASYI
RFI
SCTX
HR901
OVER WRITE HEAD
ADFG
F0CNT
SPFD
SPRD
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
IC151 (1/2)
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
INTERNAL BUS
DADT
XBCK
LRCK
FS256
OSCI
OSCO
DQSY
SQSY
XINT
SENS
SRDT
SWDT
SCLK
XLAT
MNT0
MNT1
MNT2
MNT3
SWDT
SCLK
XLAT
P.DOWN
    
MNT1 (SHCK)
MNT2 (XBUSY)
DIG-RST
SQSY
DQSY
LDON
WRPWR
MOD
XINT
SENS
SRDT
LD-IN
LD-OUT
RIN
FIN
OUT1
OUT2
VREF
IC1004
LOADING
MOTOR DRIVE
M103
(LOADING)
DQ1 
 DQ4
A0 
 A7, A9
D0 
 D3
A00 
 A07
A09
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
IC152
D-RAM
DIN1
IC1001
MASTER CONTROLLER
HF MODULE
REFLECT
PROTECT
LD-LOW
WP
VINL
VINR
DALOCK
DARST
SLICERSEL
MUTE
SDA(EEP)
SCL
EEP-WP
ADPWN
XOUT
XIN
VOUTL
VOUTR
SCL
SDA
M+7V
11
22
20
118
7
3
1
8
15
16
33
37
29
51
49
30
67
68
I2CDAT 37
SPDIF-CUT
I2CCLK
I2C-DATA
I2C-CLK
R-CH
MD-L
36
43
LIMIT-IN
OUT-SW
PW ON
MUTE
SLICER-SEL
RESET
LOCK
(LIMIT IN)
(OUT)
(PLAY)
(REC)
PLAY-SW
REC-SW
XBCKI
LRCKI
11
9
8
4
1
2
3
48
47
46
40
33
38
37
36
32
35
34
26
28
18
17
16
20
12
30
29
5
6
7
10
Q101
LASER ON
SWITCH
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
92
91
88
89
86
85
81
80
83
13
67 65 66 75 74 63 64
82
27
25
21
23
12
10
14
15
19
18
29
30
3
4
16
M
M
M
AUTOMATIC
POWER
CONTROL
DIGITAL SERVO
SIGNAL
PROCESS
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
Q131 - 134
HF MODULE
SWITCH
100
60
59
62
61
53
54
57
78
79
94 93
10
12 11
14
9
8
5 6 7
1 2 3 4
43
47
16
29
27
28
26
21
20
19
23
24
22
25
17
46
44
22
4
5
23
15
68
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
COMPA-
RATOR
PLL
FILTER
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
CPU
INTERFACE
MONITOR
CONTROL
25
29
19
47
35
14
27
32
48 40
42 50
58 56
26
38
XRST
CLOCK
GENERATOR
49, 48, 50, 51
2, 3, 24, 25
34 
 31, 36 
 39, 45
  9 
 12, 15 
 18, 21
12 13
6
5
4
VCC 7
2
10
13
12
11
M
Q1001, 1002
REFERENCE
VOLTAGE SWITCH
BCK
WS
SPDIFO
SPDIFI
12SBCKOUT
12SLRCKOUT
CLKOUT
SYSCLK
DATA0
DOUT
DADTI
XBCKI
LRCKI
DIN
OP-LEVEL
133
S101
S103
S104
S105
S102
4
3
-A
LD+3.3V
IC102
WAVEFORM
SHAPPER
X1001    
10MHz
60
66
61
8
116
9
10
21
1
13
12
7
6
5
IC195
EEPROM
R-CH
REC-L
DIN
IC1006
D/A
CONVERTER
IC1005
A/D
CONVERTER
22
VDDPLL 32
18
Q1004
DOUT
DIN
DA MUTE
DATAI
XBCKI
LRCKI
XBCKI
LRCKI
LD+3V
X171
90MHz
IOP
3
1
+5V
LD+3.3 V
+3.3V
REG
IC190
CD
SECTION
(Page 42)
MAIN
SECTION
(Page 43)
MAIN
SECTION
(Page 43)
VC
VC
VC
15
14
TEMPI
TEMPR
SWITCH
Q1003
SWITCH
Q333
MD RESET
SWITCH
Q2001,2002
+B
SWITCH
MD BACKUP
(3.3V)
3
5
IC308
RESET
RESET
A
B
C
D
PANEL
SECTION
(Page 45)
MD RESET , P.DOWN , DA MUTE
P.DOWN
D101
TEMP
SENSOR
+3.3V
123
I2C-DATA,I2C-CLK
IC181, Q181 182
OVER WRITE
HEAD DRIVE
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