Schematic Diagram – Main Board (2/4) - Sony MZ-R909 Service Manual

6-8. SCHEMATIC DIAGRAM – MAIN Board (2/4) – •
A1
A2
A3
A4
A5
(Page 40)
A6
A7
A8
A9
A10
M602
(SLED)
U
N
CN502
10P
1 1
SLEDN
W V
SLEDU
SLEDV
SLEDW
M603
HD DRV-
OVER WRITE
HD DRV+
HEAD UP/DOWN
CLVW
CLVV
U
N CLVU
CLVN
10 10
W V
M601
(SPINDLE)
•
See page 37 for Waveform. See page 44 for IC Block Diagrams.
C521
0.1
SLD CON W
SLD CON V
R552
0
SLD CON U
UI2
SLD PWM
PWM2
SLD MON U
CPUO2
SLD MON V
CPVO2
SLD MON W
CPWO2
X MTR DRV
OE
GND1
FOCUS/TRACKING COIL DRIVE,
VC
SPINDLE/SLED MOTOR DRIVE
C561
VG
0.1 CLV MON W IC551
CPWO1 SC111258FCR2
CLV MON V
CPVO1
CLV MON U
CPUO1
CLV PWM
PWM1
CLV CON U
UI1
R554
0
RB551
3.3k
X4
D3
D2
D1
C562 C563 C564
0.033 0.033 0.033
C1
C2
RB552
C3
10k
X4
D4
C4
D5
C5
D6
C6
C558 C559
C557
0.033 0.033 0.033
R915 D904
100 MA111-TX
R551
0
C522
0.1
R911
470
C911 C919
10 10
6.3V 6.3V
TF1
FI2
TR1
RI2
COM2
CPUI2
D2
CPVI2
D1
CPWI2
D3
NC
GND2
D4
CPWI1
D5
CPVI1
D6
CPUI1
COM1
FR1
RI1
FF1
FI1
C917
0.1
C915
0.1
C932 0.1
CSEL
FFCLR
R553
SLEEP
0
C926
C512 C566
1000p
0.1 0.1
41 41
R906 C902 C901
10 10
0
6.3V 6.3V
R948
150k
0.5%
R946 R926
22k 4.7k
R909
0.5% 0.5%
10k
R936
22k
R947 0.5%
C920
3.3k
10 L903 L901
0.5%
10µH 68µH
6.3V
R941
22k
R902
470k
R903 C905
NC L1
2.2k 0.1
VD RF1
VC2 INM1
C908
XRST DTC1
C921
CRST DTC2
RSTREF RF2
C906 0.01
VREF INM2
VB POWER CONTROL PWM1
IC901
GND PWM2
XPC18A32FCR2
CLKSEL VG
VAIFON LG
FFCLR PGND2
SLEEP L2
CLK NC
R907
470k
R908 L902
100k 22µH
C904
10
4V
C903
AP912
100
(GND)
6.3V
MZ-R909
C1
C2
C3
C4
C5
C6
C7
R910
10k
C8
(Page 42)
0.1
0.1
R905 C922
2.2k 1000p
L905 R917
100µH 0
C9
C10
C11
C12
D1
D2
D3
(Page 43)