Schematic Diagram - Servo Board (2/3) - Sony MV-900SDS Service Manual

3-4. SCHEMATIC DIAGRAM – SERVO Board (2/3) –
(SGND)
TC7
47
6.3V
CN5
6P
DISC_OUT_DET
DISC_IN_DET
GND
PA5V
END SW
PA5V
J1
2P
LOAD+
M1
(LOADING) LOAD-
MV-900SDS
• See page 15 for IC Block Diagrams.
(2/3)
FLASH MEMORY
U2
SST39SFO10A
MA3 MA4
A3 A4
MA2 MA5
A2 A5
MA1 MA6
A1 A6
MA0 MA7
A0 A7
MD0 MA12
DQ0 A12
MD1 MA15
DQ1 A15
MD2
DQ2 A16
VSS NC
MD3
DQ3 VDD
MD4 MWRJ
DQ4 WE
MD5
DQ5 NC
MD6 MA14
DQ6 A14
MD7 MA13
DQ7 A13
MFSCSJ MA8
CE A8
MA10 MA9
A10 A9
MPSENJ MA11
OE A11
16Mbit SD-RAM
U4
HY57V161610ETP-7
VCC VSS
RD0
DQ0 DQ15
RD1
DQ1 DQ14
VSSQ VSSQ
RD2
DQ2 DQ13
RD3
DQ3 DQ12
VCCQ VCCQ
RD4
DQ4 DQ11
RD5
DQ5 DQ10
VSSQ VSSQ
RD6
DQ6 DQ9
RD7
DQ7 DQ8
VCCQ VCCQ
LDQM NC
RWEJ
WE UDQM
RCASJ R31 33
CAS CLK
RRASJ
RAS CKE
ROEJ
CS NC
RA11
A11 A9
RA10
A10 A8
RA0
A0 A7
RA1
A1 A6
RA2
A2 A5
RA3
A3 A4
VCC VSS
C35 BC6 BC7 BC8 C36
0.1 0.1 0.1 0.1 0.1
U5
SLED/LOADING MOTOR DRIVE,
BA5954FP
FOCUS/TRACKING COIL DRIVE
SFOCUS R37 16k
VINFC
R39 0
CFCERR1
C37 100p
CFCERR2
R42 12k
VINSL+ CTKERR1
SSLEG R45 22k
VINSL- CTKERR2
C39 R44 3.3k
4700p VOSL
VNFFC PREGND
TC21
33 C90 R48
VCC
10V 0.1 1
PVCC1
PGND
FEED+
VOSL-
FEED-
VOSL+ VOLD+
FOCUS- R50 1
VOFC-
DISC_OUT_DET FOCUS+
VOFC+
DISC_IN_DET
R33 150
R35
10k
R34 150
(Page 12)
C111
0.22
L4
2.7 µH
RESET SIGNAL
R110 GENERATOR
4.7k
U3
BD4738G
GND
OUT
SUB
NC
VCC
RD15
RD14
C110
1
RD13
RD12
RD11
RD10
RD9
RD8
HINTJ
HA1
SDCLK HA0
HA2
RA9 IORDY
RA8 IOWJ
RA7 IORJ
RA6 HCS1J
RA5
RA4 HCS16J
HCS3J
R41
33
RN8
100X4
XHD1
XHD14
XHD0
XHD15
R36
33k D100
RLS4148
R38 22k DRESET RN9
STBY 100X4
XHD7
BIAS
R40 16k STRACK XHD8
VINTK
R43 0 XHD6
C38 100p XHD9
R100 15k TRAYCL
VINLD
RN10
100X4
XHD5
XHD10
XHD4
PVCC2
XHD11
VNFTK
R49
PGND
1
RN11
R83 0
VOLD- 100X4
R84 0 XHD3
TRACK- XHD12
VOTK-
TRACK+ XHD2
R51
VOTK+
1
XHD13
13 13
RN1 R1
10KX4 10k
RN2
47X4
RN3 33X4
RN4 RN5 RN6 RN7
10KX4 10KX4 10KX4 10KX4
HD1
HD14
HD0
HD15
HD7
HD8
HD6
HD9
HD5
HD10
HD4
HD11
HD3
HD12
HD2
HD13
MV-900SDS
VCC
S5V
3.3V
GND
(Page 14)
MVREF2
BUS3
BUS4
CN1
50P
+5V
+5V
+5V
+5V
GND
GND
IDERST
RST
HD0
HD0
HD1
HD1
HD2
HD2
HD3
HD3
HD4
HD4
HD5
HD5
HD6
HD6
HD7
HD7
HD8
HD8
HD9
HD9
HD10
HD10
HD11
HD11
HD12
HD12
HD13
HD13
HD14
HD14
HD15
HD15
GND
HINTJ
HA1
HA0
(Service
HA2
manual
GND
IORDY
page 26)
IOWJ
IORJ
HCS1J
R2
GND
33
HCS16J
HCS3J
R3
GND
33
LOAD+
LOAD-
GND
SPD_DET
SPD_DET
CLOSE END SW
ENDSW
DISC_OUT_DET
SLOT_OUT_DET
DISC_IN_DET
SLOT_IN_DET
PA5V
MP1_1
SPD_STP
GND
GND
SM8V
SM8V