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PMC-MD55
10
+
–
+
–
+
–
+
–
+
–
+
–
AUTOMATIC
POWER
CONTROL
Q701
34
38
46
36
37
39
35
APC
E
F
LD
VC
PD1
PD2
PD
VC
CN701
RF AMP
31
25
RFO
FOK
ILL DATA
REGISTER
INPUT SHIFT,
REGISTER
ADRESS
DECODER
OUTPUT
DECODER
IIL
TTL
22
23
24
C.OUT
SENS1
SENS2
TTL
IIL
20
19
18
DATA
XLT
CLK
21
XRST
FE AMP
TRACKING PHASE
COMPENSATION
12
FOCUS PHASE
COMPENSATION
5
15 32
RF-H
SL O
FE O
TA O
RF AMP, FOCUS/TRACKING SERVO
IC701
LD
PD
17
18
26
27
LEVEL
SHIFT
LEVEL
SHIFT
T+
T–
F+
F–
11
12
LEVEL
SHIFT
SL+
SL–
M
M1001
(SLED)
M
M1002
(SPINDLE)
SL+
SL–
CN1001
(1/2)
CN702(1/2)
19
25
MUTE DRIVE
7
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC703
35
18
11
10
12
13
14
79
CNIN
SEIN
DATO
XLTO
CLKO
XRST
CLV
SERVO
EFM
DEMO.
DIGITAL
CLV
21
17
MDP
D/A
I/F
41
43
53
39
54
42
44
40
55
BCK
PCMD
LRCK
SUB CODE
PROCESSOR
CPU
I/F
EMPH
SERIAL
I/F
BCKI
PCMDI
LRCKI
EMPHI
PWM
PWM
65
76
57
62
6
5
4
8
9
7
78
82
77
79
81
75
74
76
70
71
AOUT1
AOUT2
R-CH
SYSM
SCOR
SENS
SQSO
SQCK
XLAT
CLOK
DATA
X701
33.8688MHz
XTAI
XTAO
15
SPOA
XLON
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC702
CD-MUTE
CD-SCOR
CD-SENSE1
CD-SQSO
CD-SQCK
CD-XLAT
CD-CLK
CD-DATA
83 CD-FOK
91 CD-XRST
84 CD-SENSE2
68 HI-SPEED
10 CD-TURN
12 CD-OPEN
13 CD-CLOSE
93 SPEED-L
48 CD-DOOR
34 CD-12HISP
HIGH SPEED SWITCH
Q705
15
16
DRIVE
26
27
SPINDLE MOTOR
DRIVE
IC1001
MUTING
Q1001
MOTOR
CONTROL
Q1002-1005
1
2
BUFFER
IC1002
B+
SWITCH
Q1006
B+
CN1001
(2/2)
CN702
(2/2)
S1001
(LIMIT)
B+
(UNREG +8V)
CD LID CLOSE
DETECT
Q762
MOTOR
B+ SWITCH
Q764
MOTOR
CONTROL
Q763
MOTOR
CONTROL
Q766
6
5
4
1
7
VREF
DRIVE
M
CD LID OPEN/CLOSE MOTOR
DRIVE
IC711
B+
(CD6V)
32
CD-POWER
80
CD-SHORT
100
P-CON
43
EXTAL
42
XTAL
LEVEL
SHIFT
Q406
X401
8MHz
+3.3V
REGULATOR
Q703
CD POWER
REGULATOR CONTROL
Q702
B+
(+3.3V)
D704
B+
(CD +6V)
39
TU-SFT
86
TEX
87
TX
44
SELECT-GND
51
SELECT
X402
32.768kHz
B+(BU3.3V)
H
D-OUT
K
CN704
CD L-CH
M
TO POWER SUPPLY
SECTION
(Page 44)
TO FUNCTION
SELECT SECTION
(Page 41)
SYSTEM
CONTROLLER
IC405(3/5)
P-CON
MAIN BOARD (3/6)
CD MOTOR BOARD
CD O/C BOARD
OPTICAL PICK-UP
BLOCK
(KSS-213C)
T+
T-
F+
F-
(TRACKING)
(FOCUS)
RF
FOK
DOUT
CN404
CN711
05
1
5
6
7
4
3
8
10
12
14
15
13
16
4
4
2
2
MUTE
SLIN
FIN
TIN
OUT4+
OUT4–
IN4
MUTE4
Q1007
5
5
1
1
8
8
7
7
3
3
9
9
L
2
M703
CD LID
OPEN/CLOSE
M–
M+
OP
CL
B+
(MOTOR)
Q765
S762
CD LID CLOSE
DETECT
S761
CD LID OPEN
DETECT
6
6
3
3
1
1
4
4
5
5
7
7
• SIGNAL PATH
: CD PLAY
: MD REC (DIGITAL)
R-CH : Same as L-CH.
TO MD
SECTION
(Page 36)
TO FUNCTION
SELECT SECTION
(Page 41)
– 37 –
– 38 –
– 39 –
6-3.
BLOCK DIAGRAM – CD Section –
Содержание PMC-MD55 - Md Boombox
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