Sony CMT-EP414 / HCD-EP414 Service Manual ▷ View online
17
17
HCD-EP414
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
32
33
31
36 27
SCOR
CD SQSO
CD SQCK
CD XLT
CD CLK
CD DATA
CD SENS
CD SCOR
1 2
37 35
SCLK
COUT
9 21
SSTP
27
FOK
22
23
MIRR
DFCT
TO SERVO INTERFACE
CH4OUTF
CH4OUTR
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
CH2OUTF
CH2OUTR
M
M
M103
(SLED)
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IC101 (2/2)
DIGITAL SERVO
PROCESSOR
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
92
CD 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
10
9
CD PWM2
CD PWM1
PWM3
PWM2
PWM3
PWM2
93 CD LDON
IC801 (1/2)
CD
L-CH
RFAC
VCA
+7V
+7V
+5V
SYSTEM CONTROLLER
+3.3V
REG
Q102
CD +5V
REG
Q317
OPTICAL PICK-UP
BLOCK
(KSM-213EDP)
18
18
HCD-EP414
6-2. Block Diagrams – Main Section –
: TUNER
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
• R-CH is omitted due to same as L-CH.
BIAS
OSC
Q307
+10V
ERASE
HEAD
REC/PB
HEAD
TU DI
4
TU CLK
5
TU CE
6
SYSTEM CONTROLLER
IC801
TU DO
3
L
R
MD
J303
J301
PHONES
R CH
L
R
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC802
S801-809
TUNER UNIT
L-CH
R-CH
R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
TU TUNED
87
REC/PB
SWITCH
Q326-332
T301
BIAS OSC
Q308
TA REC/PB
30
TA BIAS
98
TA SW
24
XT1
12
XT2
13
X801
32.768kHz
CF1
15
CF2
16
X802
8.64MHz
99
AMP MUTE
29
RMC
FUCTION
KEY
S810-817
20
KEY1
VOL
ENCODER
RV801
22
VOL ENCODER
3
1
RESET
SWITCH
Q806
11
RESET
RESET
IC803
1
3
23
I POWER DOWN
D907-910
RELAY
DRIVE
AC
IN
CD POWER
CONTROL
Q320
Q311
RY901
19
KEY0
34
CD ON
+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
1
RDS DATA
7
TU STEREO
38
STEREO
MUTE
R DATA
R INT
RDS CLK
26
R-CH
R-CH
L-CH
F DATA
91
TA PLAY SW
39
TA MOTOR
88
TA END SW
8
TA SOL
28
CD OPEN/CLOSE
94 CD OPEN
POWER
AMP
R CH
J302
SPEAKER
SEG1
SEG33
83
86
COM0
COM3
FLUORESCENT
DISPLAY
LCD801
POWER
CONTROL
D810
µCON +B
+5.6V (SUB)
D811
18
I POWER MONITOR
Q315
LINE
FILTER
LF901
+7V
REG
Q319
+7V
IC302
+5V
+5V
Q309
14
6
5
2
IC303
97
AMP STBY
12
D809
µCON +B
+10V
REG
IC305
1
3
D916-919
D911-914
+5V
REG
Q305
TU +5V
+5V
REG
Q310
+10V
D319-321
POWER AMP
VCC
AC
DET
Q333
IC302
-5V
-5V
REG
Q306
POWER
MONITER
Q338
+5.6V
REG
Q312-314
+10V
D317
95
POWER ON
+5.6V( SUB)
Q809
TAPE MECHANISM DECK
(CMAL1Z240A)
PLAY
T SOL
DRIVE
DRIVE
Q321,322
MOTOR
DRIVE
Q323,325
R REC
F REC
PACK
T END
M
DECK
MOTOR
45
53
56
79
.
40
ST/BY
96
BL ON
LED
DRIVE
Q805
D806
LED
DRIVE
Q808
D701-703
(BACK RIGHT)
R-CH
L OUT2
L OUT1
A
CD SECTION
S800
(OPEN)
(MAIN)
+5V
+5V
REG
Q339
T902
POWER
(MAIN)
TRANSFORMER
T901
POWER
(SUB)
TRANSFORMER
19
19
HCD-EP414
6-3. Printed Wiring Boards – CD Section –
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.
IC102
IC101
IC103
TP (VC)
TP (RFAC)
TP (DVC)
TO
CONTROL BOARD
CN803
(Page 23)
1-680-849-
M102
M101
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
20
20
HCD-EP414
6-4. Schematic Diagrams – CD Section –
• See page 16 for Waveforms. • See page 26 for IC Block Diagrams.
M102
M101
K S M - 2 1 3 E D P
CN803
BOARD
CONTROL
0uH
0uH
24
JR101
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