Sony HCD-EC50DC / MHC-EC50DC Service Manual ▷ View online
25
25
HCD-EC50DC
HCD-EC50DC
7-2. BLOCK DIAGRAM — TUNER SECTION —
MAIN
SECTION
(Page 26)
B
: TUNER(FM)
: TUNER(AM)
• Signal Path
5
11
25
7
1
31
8
3
26
27
28
18
16
17
15
19
20
AM RF-IN
REG
AM-OSC
36 FM RF-IN
34 FM RF-OUT
FM-OSC
32
FM/AM
ANTENNA
L851
D851
L852
AM OSC
L804
FM RF
D802
D803
VT
L805
FM OSC
CF802
10.7MHz
10.7MHz
CF801
L803
PD
LP-IN
LP-OUT
DO
DI
CL
CE
X801
75kHz
XIN
XOUT
AM-MIX
FM-MIX
FM-DET
AGC
AM IF-IN
FM IF-IN
12
13
L-OUT
R-OUT
IC801
AM/FM IF AMP,
MIX, MPX, DET, OSC
FM/AM PLL
TU-DO
TU-DI
TU-CE
TU-CLK
TU-ANSD
TUNER
R-CH
R-CH
TUNER
L-CH
L-CH
CNP802
3
1
FM FREQUENCY
COVERAGE
AM FREQUENCY
COVERAGE
AM TRACKING
FM DETECTOR
FM TRACKING
CF803
450kHz
TU-DI
TU-CE
TU-DO
TU-ANSD
VM+9V
VM9V
VM9V
+3V
+5V
TU-CLK
L806
Q801
Q802
+3V
REG
+5V
REG
Q803
FM MIX
AMP
2
26
26
HCD-EC50DC
HCD-EC50DC
7-3. BLOCK DIAGRAM — MAIN SECTION —
: TUNER(FM)
: TUNER(AM)
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
A
BD/DRIVER
SECTION
(Page 24)
TUNER
SECTION
(Page 25)
(Page 25)
B
BIAS
OSC
Q507
REC/PB
HEAD
BLOCK
TAPE MECHANISM DECK
V2/P82
V1/P81
V0/P80
SYSTEM CONTROLLER
IC701(2/2)
P57/SI1
AUDIO IN
J105
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC703
SW702-704,706,709,710,719,721
SW711-716,SW708,720
SW701,705
L-CH
R-CH
R-CH
TU-DO
TU-DI
TU-CLK
TU-ANSD
TU-CE
R-CH
P63/AN3
39
55
56
57
33
L501
SW501(1/3)
(REC/PB)
(REC/PB)
P
P
P
R
R
R
SW501(2/3)
BIAS OSC
VM9V
P64/AN4
40
X1A
14
X0A
13
X701
32.768kHz
X0
93
X1
92
X702
4.19MHz
9
P34/IC0
FUCTION
KEY
FUCTION
KEY
38
41
1
RESET
SWITCH
Q704
54 RSTX
RESET
Q705,706
42
D051,052
RELAY
DRIVE
AC
IN
Q102,108,109
S001
37 P61/AN1
P62/AN2
P65/AN5/INT0
P71/AN9/SC1
P66/AN6/INT1
VM+9V
PB/REC EQ AMP,
FUNCTION CONTROLLER
IC401
A1
19
18
OUT 1
B1
21
PB1P
2
C1
23
13
SD
28
REC 10
R-CH
R-CH
L-CH
P27
POWER
AMP
SEG0
SEG31
59
62
COM0
COM3
LIQUID CRYSTAL
DISPLAY
LCD702
Q244
Q135,136
Q201
Q242,243
Q241
Q133,134,137
CON VCC
CON AVCC
36
P60/ANO
LINE
FILTER
VOLTAGE
SELECTOR
L001
F001
J001
D001
VM+9V
6
1
IC202
2
P25
5
POWER
AMP
LOW
3
8
IC201
7
D702
+9V
REG
IC101
+VP
-VP
1
3
D107-110
D191,192
Q151-154
D111,113
+3.3V
REG
Q191
Q192
AVDD
( +3.3V)
DVDD
( +3.3V)
+3.3V
REG
D156
D154
PA+VCC
M+9V
POWER
MONITOR
Q121,122
Q117-119
Q123
Q117-119
Q123
+3.6V
REG
Q701-703
+17V
+17V
REG
Q113,114
Q120
Q120
1
P24
67
63
64
64
89
94
100
.
.
.
.
46
LED702
LED
DRIVE
Q707
LED701
(BACK LIGHT)
(STANDBY)
P40/LED0 17
LED
DRIVE
Q710,711
P72/AN10/SO1 47
J102
PHONES
R-CH
R-CH
R-CH
L
R
R-CH
J101
SPEAKER
R-CH
CD-R
CD-L
P-SW
M-SW
VM
(+7V)
(+7V)
PT001
POWER
(MAIN)
TRANSFORMER
PT002
POWER
(SUB)
TRANSFORMER
4
SW501(3/3)
(REC/PB)
VOLUME
VOLUME
48 P73/AN11/SI2
SW700
AMP
CONTROL
VOLTAGE
SHIFT
Q115,116
VOLTAGE
SHIFT
Q251-253
GAIN
SWITCH
RELAY
CONTROL
OVERLOAD
AMP
PROTECT
PROTECT
PROTECT
DET
DET
DET
M
RY002
VM+9V
FAN
CONTROL
Q901-Q903
M901
FAN MOTOR
M
RY131
RY002
Q171
RELAY
CONTROL
D901
HP
MUTE
RY001
Q101,103,104
Q105,107
RELAY
CONTROL
Q110-112
DC
DETECT
SWITCH
45
P70/AN8/INT3
+17V
+17V
DC IN
27
27
HCD-EC50DC
HCD-EC50DC
7-4. PRINTED WIRING BOARD — BD83S BOARD —
•
See page 23 for Circuit Boards Location.
:Uses unleaded solder.
IC203
IC201
IC402
BD83S BOARD (SIDE A)
BD83S BOARD (SIDE B)
1
1-868-067-
(12)
3
5
E
4
M
(SPINDLE MOTOR)
S101
(LIMIT)
M
(SLED MOTOR)
A
MAIN BOARD
CNS104
(Page 29)
OPTICAL PICK-UP
BLOCK
KSM-213DCP
12
1-868-067-
(12)
12
TP(RFACI)
TP(VC)
1
A
B
C
D
E
F
G
2
3
4
5
6
7
8
9
10
11
12
C406
C401
R421
R423
C424
C101
C102
C108
C201
C110
R401
R201
R207
C202
R202
C203
X201
C275
R271
R203
C223
R260
C204
C321
C276
C277
R276
C272
C219
C220
C205
C207
C105
C107
C267
C268
C271
C109
C104
C232
C215
C206
C266
C210
R256
C257
C274
Q321
R323
C322
R322
R321
R324
C323
C226
C227
CN301
C256
R254
C253
C252
R252
C224
R101
R102
R107
C451
R452
R109
C103
R103
R278
C218
C291
C292
R292
C217
C214
C213
C222
C221
C261
R267
R250
R258
R257
C260
C264
C273
C265
C303
C111
C304
C301
R266
R270
C254
C208
R255
R253
C251
R108
R104 R105
R275
R277
R110
R451
R291
R268
R265
C258
C230
C113
C112 R112
R111
R113
CN102
C404
C405
R280
• Semiconductor
Location
Ref. No.
Location
IC201
E-8
IC203
G-3
IC402
C-10
Q321
F-5
28
28
HCD-EC50DC
HCD-EC50DC
7-5. SCHEMATIC DIAGRAM — BD83S BOARD —
•
See page 23 for Waveforms.
•
See page 41 for IC Block Diagrams.
•
See page 42 for IC Pin Function Description.
C208
C205
R324
R101
R292
C110
R451
R102
R103
R104
R105
R107
R108
R109
R110
R111
R255
R253
C406
C301
R254
R252
R250
R268
R322
R321
C264
CN301
C222
C213
R291
C201
C219
R112
R113
C203
C108
C102
C101
C103
C105
C111
C104
C109
C107
C113
C112
R275
R277
R276
C271
C221
C273
C261
C260
R265
R266
R267
R258
C258
R260
C256
C207
C254
C253
C252
C251
C232
C206
C224
R278
C272
C204
C218
C291
C292
C217
C202
R401
C303
C322
C321
R323
R452
R421
C404
R207
C226
C265
C210
R256
C257
C323
Q321
C424
R423
C405
IC402
S101
TP
C230
TP
C220
C451
TP2
TP1
TP4
TP3
C274
R257
C304
IC201
R280
C401
C227
R202
C268
C215
C276
C277
IC203
IC203
R201
CN102
C266
C267
R203
C275
C214
X201
R270
R271
C223
0.1
0.1
100k
100
100
220p
22k
100
100
100
100
100
100
100
100
100
1k
1k
0.1
0.1
10k
10k
1M
10k
2.2
2.2
0.001
16P
0.1
0.1
100
100
10V
10V
0.1
100
100
100
10V
10V
220p
22p
22p
100p
100p
220p
220p
220p
220p
100p
100p
100
100
47k
0.1
0.1
470p
0.01
0.47
4.7k
1k
4.7k
220k
220p
0
0.1
100 10V
0.0047
470p
0.0047
470p
0.1
0.1
0.1
100
0.1
0.1
0.1
470p
470p
0.1
0.1
0
10
1
0.001
0
10k
0
0.1
0
1
0.1
0.1
22k
0.1
100
10V
10V
2SA2119K
0.1
10k
0.1
BA5947FM-E2
100p
0.1
0.047
0.1
100k
1
CXD3014A-201R
0
220
10V
10V
1
0
10p
0.1
1
1
BH18LB1WG-TR
0
23P
10p
5p
5p
0.1
16.9344MHz
1k
1M
0.1
FRD
R
FFD
R
T
RD
R
TFD
R
FRDR
FFDR
TRDR
TFDR
S
P-
S
P+
S
L+
S
L-
SP+
SP-
SL+
SL-
OPIN-
OPIN+
CH1FIN
CH1RIN
CH2FIN
CH2RIN
GND
CNF4
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1PUTF
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OPOUT
PREVCC
VREF
GAIN-SW
MIRR
DFCT
FOK
VSS
LOCK
MDP
SSTP
IOVSS1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
IOVDD1
AVDD0
AVSS0
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
AVDD4
RFDCO
PDSENS
AC_SUM
EG_IN
LD
PD
RFC
AVSS4
RFACO
RFACI
AVDD3
BIAS
ASYI
ASYO
VPCO
VCTL
AVSS3
CLTV
FILO
FILI
PCO
BCKI
LRCKI
LRCK
VSS
PCMD
BCK
VDD
IOVDD2
DOUT
TEST
IOVSS2
XVSS
XTAO
XTAI
XVDD
AVDD1
AOUT1
VREFL
AVSS1
AVSS2
VREFR
AOUT2
AVDD2
IOVDD0
IOVSS0
XTACN
XRST
VSS
VDD
SENS
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
VDD
COUT
PCMDI
CLOK
SVSS
SVDD
SVSS
SVDD
VSS
SVDD
VDD
VSS
TEST1
SVSS
SVSS
SVDD
JTAGTCK
JTAGTDI
JTAGTDO
JTAGTMS
TRST
VDD
TES1
PLLVDD
PLLVSS
ACK-MP3
REQ-MP3
IREQ-MP3
SSTB-MP3
3
5
1
XLAT-MP3
XLAT
CLK2
DATA
DATA2
T+
VC
GND
LD
PD
F+
T-
F-
VCC
SCOR
SENS
CLK
XRST
D-OUT
DVDD(3.3V)
AVDD(3.3V)
E
D
A
B
C
F
VR
IREQ-MP3
REQ-MP3
ACK-MP3
XLAT-MP3
XLAT
DATA
DATA-MP3
CLK-MP3
2
4
(LIMIT)
AUTOMATIC
POWER
CONTROL
RF AMP,DSP,MP3
FOCUS/TRACKING
COIL DRIVER,
SLED/SPINDLE
MOTOR DRIVER
OPTICAL
PICK-UP
BLOCK
KSM-213DCP
(SPINDLE)
(SLED)
(VC)
(RFACI)
+1.8V REGULATOR
M-MUTE
D-GND
L-CH
A-GND
R-CH
M-GND
M+7V
XTACN
(APC)
(SPI)
No mark:CD PLAY
(2/3)
CNS104
MAIN BOARD
A
BD83S BOARD
(Page 31)
1
2
3
4
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