Read Sony HCD-EC50DC / MHC-EC50DC Service Manual online
24
24
HCD-EC50DC
HCD-EC50DC
7-1. BLOCK DIAGRAM — BD/DRIVER SECTION —
: CD
• Signal Path
A
MAIN
SECTION
(Page 26)
Q669,672
Q671,670
Q665,668
Q667,666
M1
-
+
-
+
M1+
M1-
M2+
M2-
M
P67/AN7/INT2
P35/IC1
P74/SDA/SC2
P30/SO3
P31/SC3
P75/SCL/SO2
P37/OCU1
P41/LED1
P43/LED3
P51/TIN1
P52/TIN2/PPGO
P53/PPG1
P42/LED2
P50/TINO
P54/SI0
P55/SC0
P33/TMCK
P56/SO0
P26
P76
SW3
SW1
SW7(CHACK)
SW8(OPEN)
SW2
SW6(CLOSE)
SW5(STOCK)
OPTICAL PICK-UP
BLOCK
(KSM-213DCP/C2NP)
AUTOMATIC
POWER
CONTROL
Q321
+1.7V
+3.3V
LD
GND
FOCUS
COIL
F+
F
T+
T
SP+
SP
SL+
SL
TRACKING
COIL
IC402
S201
(LIMIT)
X201
16.9344MHz
+3.3V
SL/SP MOTOR
DRIVER
MOTOR
DRIVE
IC201
RF AMP,DSP,MP3
12
6
11
13
14
VR
PD
16
15
18
17
4
23
2
20
MUTE
CH2OUTF
CH1FIN
CH1RIN
CH2FIN
CH3FIN
OPIN+
CH2OUTR
CH1OUTR
CH1OUTF
CH4OUTF
CH4OUTR
CH3OUTR
CH3OUTF
M
M
M401
(SPINDLE)
M402
(SLED)
VCC
VC
A
B
C
D
E
F
DETECTOR
A
B
E
50
F
51
LD
66
PD
67
TFDR
43
SSTP
39
FFDR
45
SFDR
41
MPD
M-MUTE
38
XTACN
XRST
DATA
XLAT
CLOCK
117
AOUT2
112
AOUT1
108 XTAO
109 XTAI
57
58
C
59
D
60
SENS
XTACN
XRST
DATA
XLAT
CLOCK
SENS
13
XLAT-MP3
REQ-MP3
REQ-MP3
CD-L
CD-R
XLAT-MP3
TRDR
44
22
CH3RIN
SRDR
42
CH2RIN
FRDR
46
5
3.3V
+1.8V
IC203
CD MECHANISM DECK
BLOCK
SYSTEM CONTROLLER
IC701
(1/2)
7
3
1
ACK-MP3
ACK-MP3
12
15
7
89
16
11
20
26
8
DATA2
DATA-MP3
90
CLK2
CLK-MP3
10
IREQ-MP3
IREQ-MP3
SCOR
SCOR
+1.8
REG
REG
43
10
49
5
6
50
12
28
P44/LED4 21
P45/LED5/TOT0 22
P46/LED6/TOT1 23
P47/LED7/TOT2 24
27
26
20
25
19
18
29
30
8
31
3
34
14
FOCUS/TRUCKING
COIL DRIVER
MOTOR
DRIVE
M2
M
MOTOR
DRIVE
MOTOR
DRIVE
Q661-664
VM9V
CD
MOTOR
CONTROL
P36/OCU0
11
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