Servo, System Control Block Diagram - Sony MZ-E60 Service Manual

6-2-2. SERVO, SYSTEM CONTROL BLOCK DIAGRAM

MAIN BOARD
SERVO, SYSTEM CONTROL SECTION
• Signal path
: MD
TRK+
TRK–
MD
1
SECTION
(Page 17) FCS+
MINIDISC
MECHANISM
BLOCK FCS–
M902
CN551
(SLED) SLED1+
5
SLED1–
7
SLED2+
6
SLED2–
8
CLVN
1
M901
(SPINDLE)
CLVU
2
CLVV
3
CLVW
4
04
( 2/2 )
MD AOUTL
2
AOUTR
SECTION
(Page 18)
B+
EEPROM
(Q907)
IC802
VCC CS
8
SK
DO
7 PE DI
VREF
MCLK
SINT
XRST
MD
4 S MON
SECTION PD
(Page 18) SSB CLK
SSB DATA
S0
S1
SLED
VOLTAGE MONITOR
IC552
5 +
7
6 –
3 +
1
–
2
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SERVO MOTOR DRIVE
IC551
VCC1
B+
B+
(UNREG)
(Q907)
45
42
43
TF1
64
40
PREDRIVE
41
1 TR1
38
39
10
11
FF1
2
8
PREDRIVE
9
3 FR1
6
7
62 57
61 PREDRIVE 58
60 56
51
52 54
PREDRIVE
50 55
VCC2
B+
(Q907)
46
33 +
32
34 –
+
31
35 –
+
30
36 –
23
16
24
15
26 PREDRIVE DECODER
14
29
13
28
VG
4
VCC1
OE
TO EACH
17
STANDBY
BLOCK
VCC2
TO BEMF
BIAS
COMPARATOR
– 19 –
B+
(Q907)
76 NV CS1
1 DVDD MON 5
2 75 NV CLK
3 74 NV DI
B+
4 73 NV DO
SYSTEM
(D901)
21
CONTROL
•
IC801
4 VREF 40
VDD
•
25 XCLK 79
B+
28 DSP SINT
(D903)
REFERENCE
37 XRST
AVDD 10
VOLTAGE
1 S MON
SWITCHING
43 APC REF
35 SBUS CLK
HP MUTE 70
36 SBUS DATA
HP STB 71
64 S0 KEY EN 26
65 S1 RMC KEY 7
XWAKE RMC 33
RMC DTCLK 63
39 SLD 2 MON
38 SLD 1 MON
S806
DIGITAL MEGABASS
17 XIN
0
X601
16.9344MHz
16 XOUT
DBB0 29
DBB1 30
AVLS SW 27
HOLD SW
23
MD
3
SET KEY 8
SECTION
XWAKE SET 34
(Page 18)
OPEN CLS SW 32
ADJUST
77
OPR LED 31
D802
OPERATE
53 SLD 1R CON
54 SLD 1F CON
RESET
68 SLD VCON
IC803
55 SLD 2R CON MRST
9 3 OUT
56 SLD2F CON XREBOOT 78
B+
47 CLV W MON (UNREG)
UNREG MON 2
46 CLV V MON
RM VCOM 44
45 CLV W MON
48 CLV U CON
49 CLV V CON
Q904
50 CLV W CON (2/2)
Q904(1/2)
42 CLV V CON
51 DRV VCON VG CON 24
VG
B+
(UNREG)
HEADPHONE
AMP
B+
1 B+
IC301
(Q907)
20 VCC
PW A
22 2
PW B
Q802
21 4
PW
12 18
SW
VREF
13 MUTE 17
Q301
Q801
S807 S808
AVLS HOLD
1 2 NORM LIMIT
S809
OPEN/
TAP801 TAP803
CLOSE
S805 S804 S803 S802
– +
. > N
VOL
B+
(D901)
VDD 4
Q908
VSS
5 D903
B+
PWM/PFM CONTROL
IC903
Q905
2 VDD
POWER SUPPLY
EXT 5
VOLTAGE CONTROL
1 VOUT
SWITCH
Q906
Q907
B+
B+
VG
(UNREG)
B+
D901
Q903
2 VDD
EXT 5
1 FB 2 VDD
3 CE VOUT 1
Q901
5 EXT
PWM/PFM CONTROL
IC902
PWM/PFM CONTROL
IC901
– 20 –
MZ-E60
J301
i
GND
KEY
DATA
B+
VDD
(D903)
S801
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
B+ SWITCH
1PC, 1.5V
Q902