Sony CMT-M373NT / HCD-M373 Service Manual ▷ View online
49
49
HCD-M373
–
MD SECTION
–
: USB
: PB(MD)
: REC(MD)
• Signal Path
F
E
C
D
B
A
LASER
DIODE
DETECTOR
OPTICAL PICK-UP BLOCK
(KMS-262E)
LD
POWER
PD
LD
B
A
D
E
TRACKING
COIL
FOCUS
COIL
F+
F-
T+
T-
VCC
VC
LD
DRIVE
Q202,203
RF AMP
IC101
E
8
F
9
APC
11
PD
10
MOTOR/COIL DRIVE
IC401
OUT3F
12
OUT3R
10
21
23
27
25
M
M102
(SLED)
6
8
M
M101
(SPINDLE)
14
IN3F
15
IN3R
19
18
29
30
4
16
PSB
TRDR
102
TFDR
103
FRDR
105
FFDR
104
DIGITAL SERVO
DIGITAL SIGNAL PROC.
IC201
RFI
70
35
ABCD
34
FE
26
TE
ABCD
78
FE
79
TE
86
SE
85
26
DOUT
6
SWDT
7
SCLK
8
XLAT
38
XOE
37
XWE
47
XRAS
12
XRST
46
XCAS
38
RF
28
SE
MD MASTER CONTROLLER
IC702 (1/2)
SCLK
31
24
DIN0
10
SRDT
11
SENS
SRDT
30
16
XINT
+3.3V
REG
1
3
IC933
+3.3V
+5V
J
I
C
J
I
F
A
4
D
7
I
1
J
2
C
6
B
5
LASER ON
SWITCH
Q201
VR
PD
ILCC
HF MOD
SWITCH
SWITCH
Q701-704
HF
MODULE
MOD
3
4
AMP
IC701
OUT1F
OUT1R
OUT2F
OUT2R
OUT4F
OUT4R
IN1F
IN1R
IN2F
IN2R
IN4F
3
IN4R
SFDR
108
SRDR
107
33
AUX
37
PEAK
36
BOTM
32
ADFG
16
SWDT
17
SCLK
18
XLAT
20
FCONT
12
APC REF
AUX1
80
PEAK
76
BOTM
77
ADFG
91
DTRF
99
CLRF
98
XLRF
97
FCONT
94
APCR
100
SPRD
109
SPFD
110
10
S.RST
OVER WRITE
HEAD DRIVE
HR901
OVER WRITE
HEAD
EFMO
115
XT
17
IC181
Q181,182
25
DIN1
14
DQSY
13
SQSY
2
MNT1
3
MNT2
DRAM
IC152
SENS
49
XINT
23
DQSY
16
SQSY
18
MNT1
55
MNT2
54
SWDT
29
XLAT
51
D.RST
48
IOP
87
LDON
43
WRPWR
46
MOD
42
15
RPWR
63
LOAD-LO
SWITCH
Q721
MOTOR
DRIVE
9
4
2
10
M
M103
(LOADING)
IC781
6
RESET 3
1
IC721
BU +3.3V
SWITCH
Q781
64
LOAD-OUT
65
LOAD-IN
59
PROTECT
58
REFELECT
47
REC-SW
50
PLAY-SW
53
OUT-SW
45
LIMIT-IN
S101
(LIMIT IN)
S103
(OUT)
S104
(PLAY)
S105
(REC)
S102
(REFLECT/PROTECT)
57
SDA
52
SCL
56
EEP-WP
IC195
EEPROM
5
6
7
A00
A10
3
24
25
2
.
43
45
44
42
.
D0
D3
22
4
5
23
.
.
.
.
9
12
15
.
19
21
.
8
.
54
56
60
.
59
55
.
.
.
52
.
53
.
51
.
49
.
48
.
50
.
27
DATAI
28
LRCKI
29
XBCKI
+2.6V
REG
1
3
IC926
+2.6V
VCO
5
IC803
8
20
OSC
XIN
13
XOUT
11
X804
X721
10MHz
XCIN
8
XCOUT
9
X722
32.768kHz
1
36
FS256
DOUT
DIN0
DIN1
DATAI
LRCKI
XBCKI
MCLK
11.2896MHz
IN1
IN2
OUT1
OUT2
VC
USB
SECTION
B
50
50
HCD-M373
–
USB SECTION
–
: CD
: DIGITAL IN
: USB
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB(MD)
: REC(MD)
51
1
CLK
UCK
53
2
RX
TX
52
3
TX
RX
17
4
SLEEP
SLEEP
14
13
REQ
REQ
15
P.DOWN
61
I2CDATA
62
I2CCLK
PDOWN
I2C-DATA
I2C-CLK
17
P.DOWN
28
I2CDATA
27
I2CCLK
16
15
BUSY
BUSY
55
32
D2VP
DP
30 USB_SW
77 VBUS
56
33
D2VM
DM
31
35
USOVB
USB_EN
53
1
D1VP
D+
9 SEL1
54
2
D1VM
D-
5 Q
3 Q
51 RPVP
52 RPVM
44 VBUSDET
19
1
RST
5
36
NETMD-CLK
CPU_CK
4
37
NETMD-SI
CPU_SO
3
38
NETMD-SO
CPU_SI
74
40
NETMD-CS
CPU_XCS
73
42
NETMD-INT
CPU_INT
75
45
NETMD-RST
RESET
76
43
NETMD-PLLSW
PLLSW
33
8
L3DATAO
CDTI
34
9
L3DATAI
CDTO
35
10
L3CLK
CCLK
36
11
L3MODE
CSN
79
6
LOCK
INT0
90
7
EMPHASIS
INT1
86
5
DARESET
PDN
DIGITAL
OPTICAL
IN
DIGITAL
OPTICAL
IN
CD
SECTION
IC252
IC701
AD/DA CONVERTER
IC706
SPDIF ENCODER
IC705
USB NET MD SECURITY
IC703
USB I/F
IC704
USB-I2C CONVERTER
IC702(2/2)
MD MASTER CONTROLLER
A
MAIN
SECTION
C
D
B
2 RX3
44 RX2
4 RX4
XTI 21
D 2
CK 1
DOUT 25
EXTAL 23
38
32
LOUT
33
ROUT
R-CH
LIN
42 RX1
37 RIN
R-CH
2
DSP_CLK
MCLK
DOUT
LOUT
16
TX3
DIN0
IC722
INVERTER
3
DSP_IF0
DIN1
5
DSP_IF2
XBCKI
8
DSP_IF3
DATAI
4
DSP_IF1
LRCKI
LIN
DIN-CD
DIN-OPT
VBUS
Q751
D-
D+
CN220
RESET
IC751
19 XRST
X1
6MHz
23
X0
X1
X753
10MHz
23
22
12 PDOWN
MAIN
SECTION
I2C-DATA, I2C-CLK
E
MAIN
SECTION
F
PDOWN
I2C-DATA
I2C-CLK
PDOWN
MAIN
SECTION
MD
SECTION
PDOWN
2
4
IC752(1/3)
OSC
IC752(2/3)
INVERTER
IC752(3/3)
INVERTER
IC753
DIVIDER
3
5
6
2
1
7
X751
12MHz
USB
IC253
BUFFER
4
IC259
BUFFER
4
2
2
51
51
HCD-M373
–
MAIN SECTION
–
: FM
: CD
: DIGITAL IN
: USB
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB(MD)
: REC(MD)
: PB(TAPE)
: REC(TAPE)
ST-DATA-OUT
23
ST-CLK
27
ST-CE
22
SYSTEM CONTROL
IC101 (2/2)
ST-DATA-IN
25
SJ302
L1
14
5
L OUT
CE
2
CL
30
SOUND PROCESSOR
IC102
POWER AMP
IC803
MUTE CONT
Q871-873
J401
TM801
L
R
PHONES
SPEAKER
R-CH
R-CH
LIQUID
CRYSTAL
DISPLAY UNIT
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC401
S431-437
D451
TUNER UNIT
L-CH
R
L
R-CH
R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
ST-TUNED
57
ST-MUTE
21
MUTE
STEREO
ST-STEREO
34
RDATA
ST-RDS-DATA
2
RCLK
ST-RDS-CLK
18
XCIN
XCOUT
11
X100
32.768kHz
XIN
15
XOUT
13
X101
16MHz
L2
13
L3
12
L4
11
10
L SEL O
9
L IN
87
EQ-DATA
88
EQ-CLK
86
EQ-CE
DI
1
LIN
LOUT
10 STBY
CH1
IN
IN
8
3
CH1
OUT+
OUT+
Q874
MUTE
81
LINE-MUTE
89
TA-MUTE
SP-RELAY
5
LCD-DATA
Q820-824
100
PROTECT-IN
LCD401
1
LCD-ON
7
LCD-CLK
6
LCD-CS
3
LCD-RST
+10V
D464-466
(BACK LIGHT)
4 SIRCS-IN-WAKE
FUCTION
KEY
S421-425,427,428
95
KEY2
FUCTION
KEY
S411,413-418
97
KEY1
74
KEY-WAKE-UP
I/
LED
DRIVE
Q471
44
LED-STANDBY
79
LED-PANEL
LED
DRIVE
Q451
D471,473
(LCD PANEL LIGHT)
1
82
PWR-RELAY
RESET
SWITCH
Q353
12
RESET
RESET
IC353
1
3
20
AC DET
D356
D982
T900
POWER
TRANSFORMER(MAIN)
D971-974
RELAY
DRIVE
AC IN
D983
POWER AMP +B
POWER AMP -B
T901
(SUB)
TRANSFORMER
D984-987
ST/CD +10V
M +10V
M +7V
D +5V
D +3.3V
SUB +3.3V
CD +5V
MD +5V
CD SPDL +8V
+5V
REG
1
3
IC907
+4V
REG
2
3
IC355
+10V
REG
1
3
IC911
+10V
REG
1
3
IC901
+8V
REG
1
3
IC903
+7V
REG
1
3
IC905
D353
BU +3.3V
D352
D354
D351
D349
IC101 VCC +3.3V
D355
C350 0.22F,
C355 0.22F
C355 0.22F
D350
Q991
RY991
+4V
REG
2
3
IC356
D993
D992
94
KEY3
65
CD-BD-PWR
IIC DATA
IIC CLK
IIC DATA
30
IIC CLK
29
USB
SECTION
USB
SECTION
10
78 PDOWN-OUT
+B SWITCH
Q401,402
SUB +3.3V
SWITCH
Q351
VOLUME
VOLUME
ENCODER
S401
52 VOL-B
53 VOL-A
R-CH
R-CH
D820
D842
D841
83
FAN_DRIVE
POWER
FAN CONT
+5V
REG
1
3
IC967
R-CH
BIAS
OSC
Q642,643
+9V
ERASE
HEAD
REC/PB
HEAD
PB/REC EQ AMP
IC601
B IN
REC OUT
PB OUT
REC IN
MUTE
ALC
RV653
T601
REC BIAS
Q639-641
REC MUTE
DECK BLOCK
REC L
PLAY
REC R
PACK
END SENSOR
TRG M+
TRIGGER
DRIVE
Q691,693
M +10V
MOTOR
DRIVE
Q692,694
TC-MUTE
TC-ALC
TC-REC-MUTE
TC-ALC
TC-REC-MUTE
TC-PLAY-SW
TC-HALF-REC-SW
TC-END-SW
TC-TRIG-B
TC-CAPM-CONT
RV652
REC LEVEL
TC-BIAS
REC
BIAS
9
4
7
IC602
TC-REC-PB
Q680,681
SWITCH
P DOWN
MUTE SWITCH
Q845
RELAY DRIVE
Q881,882
RELAY DRIVE
Q831-833
DC PROTECT
Q835-837
OVER LOAD
DETECT
Q801
PROTECT
SWITCH
Q842
B+
SWITCH
Q110,111
PROTECT
SWITCH
Q834
TEMP
DETECT
Q841
R-CH
RY801
66
THP841
FAN801
g
FM 75
Ω
/300
Ω
AM
ı
USB
SECTION
USB
SECTION
C
D
E
F
37
10
5
7
14
11
15
40
80
41
42
43
38
91
90
58
59
ANALOG
IN
ANTENNA
52
52
HCD-M373
6-3. PRINTED WIRING BOARD – BD (CD) BOARD –
•
: Uses unleaded solder.
• See page 47 for Circuit Boards Location.
Ref. No.
Location
IC101
B-2
IC102
C-1
IC103
B-3
IC104
C-2
IC105
B-7
IC201
A-2
Q101
A-3
• Semiconductor
Location
C
1
3
( A - M A X . 3 )
M 9 0 2
M 9 0 1
C252
T P
( R F A C )
( R F A C )
T P
( T E )
( T E )
T P
( D V C )
( D V C )
C 2 5 3
C 2 5 4
C255
TO
MAIN
BOARD
CN103
IC201
IC101
IC104
IC102
IC103
IC105
(Page 62)
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