Md Servo Section - Sony HCD-MD515 - Component For Dhcmd515 Service Manual

1-2. MD SERVO Section

HR901
OVER WRITE HEAD
I I
1
J J
2
F
B
C B
I J
D A
A
A
4
B
5
E C
6
DETECTOR D
7
C
D
E E
8
F F
9
LASER DIODE
AUTOMATIC
APC
ILCC
POWER
11
CONTROL
Q162, 163
PD LD
LASER ON
PD PD
SWITCH 10
Q101
OPTICAL PICK-UP
(KMS-260A/J1N)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC152
PSB
M901 6 OUT4F IN4R
M
(SPINDLE)
8 OUT4R IN4F
M902 27 OUT2F IN2F
M
(SLED)
25 OUT2R IN2R
2-AXIS
DEVICE
FCS+
21 OUT1F IN1F
23 OUT1R IN1R
FCS–
TRK+
12 OUT3F IN3F
TRK–
10 OUT3R IN3R
MOD
HF MODULE
05
OVER WRITE
HEAD DRIVE
IC181, Q181, 182
SCTX
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
48 47
RFO AGCI RF
RF AGC
RF AMP 46 40 38
& EQ
EQ
B.P.F. AUX
33
WBL
3T
TEMP
PEAK
37
PEAK &
BOTM
BOTTOM
36
WBL
ADFM ADIN
ADFG
AT
B.P.F. 29 30 32
AMP
I-V
ABCD
ABCD
AMP 35
AMP
FOCUS FE
34
ERROR AMP
TE
26
I-V TRACKING
SE
AMP ERROR AMP
28
COMMAND
LD/PD
AMP
SERIAL/
PARALLEL
V-I
CONVERTER,
CONVERTER
DECODER
12 20 16 17 18
16
+3.3V
SPFD
3
SPRD
4 13 75 66 64 65 74 73
RECP
APCREF AUTOMATIC
83
POWER
CONTROL
SFDR ANALOG MUX
29 92
SRDR
30 91
A/D CONVERTER
DIGITAL
SERVO
SIGNAL
FROM CPU
PROCESS
FFDR
INTERFACE
19 88
FRDR
18 89
AUTO
SEQUENCER
TFDR
14 86
DIGITAL SERVO
TRDR
15 85 SIGNAL PROCESSOR
IC121 (2/2)
– 5 –
15
TX
EFMO
100
FILI
59
PCO
58
PLL
CLTV
61
FILO
60
ASYO
51
ASYI
52
COMPA-
RFI
RATOR
55
SUBCODE
ADIP PROCESSOR
78 DEMODULATOR/
DECODER
CPU
F0CNT SPINDLE
INTERFACE
79
SERVO
94 93 10 12 11 14 9 8
20 5 23 41 36
49 LDON
40 DIG-RST
44 WRPWR
50 MOD
75 76
62 63
4 5
FIN RIN
OVER WRITE HEAD
UP/DOWN
MOTOR DRIVE
OUT1 OUT2
IC172
1 7
M
M905
(OVER WRITE HEAD UP/DOWN)
XLRF XLAT
80
CKRF SCLK
81
DTRF SWDT
82
HF MODULE
SWITCH
Q102 – 104, 113
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
IC121 (1/2)
ATRAC ENCODER/DECODER, 2M BIT D-RAM
IC121 (1/2)
ADDT
23
MD D+5V
RIPPLE
FILTER
SAMPLING
Q641
RATE
CONVERTER
DIGITAL SIGNAL
DIN
DIGITAL
SWITCH
21
AUDIO DOUT
IC641
22
INTERFACE
DIGITAL SELCT
DADT
24
XBCK, LRCK, FS256
26 25 27
D-RAM
OSCI
16
CLOCK
OSCO
22.5792MHz
GENERATOR
17
INTERNAL BUS
MONITOR
CONTROL
5 6 7 1 2 3 4
XOE
41
XWE
45
XRAS
44
XCAS
42
35 37 38 48 47 46 45
SCTX 42
MD MECHANISM CONTROLLER
IC316 (1/2)
LIMIT-IN 59
EEPROM
IC171
HEAD SW UP 73
SDA SDA
5 79
SCL 6 80 SCL
HEAD SW DOWN 74
XIN
15
REFLECT 55
X302
7MHz
13
XOUT
PROTECT 54
– 6 –
HCD-MD515
RM-MD515
ADDT
C (Page 7)
D-OUT
B (Page 4)
D (Page 7)
DADT
E (Page 7)
F (Page 7)
X100
D-RAM
IC124
16 XOE
3 XWE
4 XRAS
17 XCAS
SIGNAL PATH
: MD PLAY
: MD REC (ANALOG INPUT)
: MD REC (DIGITAL INPUT)
: MD REC (CD DIGITAL INPUT)
S681
(LIMIT IN)
S6
OVER WRITE HEAD
UP DETECT
S7
OVER WRITE HEAD
DOWN DETECT
S682
(REFLECT)
S683
(PROTECT)