Diagrams; Block Diagram -Servo Section - Sony MV-900SDS Service Manual

3.

DIAGRAMS

3-1. BLOCK DIAGRAM – SERVO Section –
RF
A
B
C
D
F1
F2
E1
E2
PD
AUTOMATIC
POWER CONTROL
LD (DVD)
(FOR DVD)
AUTOMATIC
POWER CONTROL
LD (CD)
(FOR CD)
OPTICAL
PICK-UP
BLOCK
SMOTOR
EC
SSPDON
START
SFGIN
FG
HOMESW
FEED LIMIT SW
GAINSW
SW2
RFSW
SW1
DVD ON SWITCH
DVD_VR
Q11
CD ON SWITCH
CD_VR
Q12
ANODE
COLLECTOR
FO+
FO–
TR+
TR–
FEED MOTOR+
FEED MOTOR–
M1
(LOADING)
MV-900SDS
DVDFRP ATOP 62 AIP FNP 52 DIP
1 59 53
63 CDRF ATON 61 60 AIN FNN 51 54 DIN
5 A2
6 B2
7 C2
8 D2
14 A
13 B
12 C
11 D
SDATA 47
16 E
RF AMP,
SCLK 46
FOCUS/TRACKING ERROR AMP
15 F SDEN 48
U6
17 CDTE
LDON 25
MIRR 29
21 DVDPD
23 CDPD
22 DVDLD
Q2
MEVO 34
24 CDLD
Q3
26
REFERENCE VOLTAGE
GENERATOR
U7 (1/2)
Q10
SENSOR BOARD
SLED/LOADING MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
U5
14 VOFC+
VINFC 1
13 VOFC–
16 VOTK–
VINTK 26
VOTK+
15
12 VOSL+
VINSL– 5
11 VOSL–
17 VOLD+
M M
VINLD 23
18 VOLD–
28
D100
DVD/CD
DIGITAL SIGNAL PROCESSOR
U1
SIGO 57 2 XSRFIN
FE 42 24 XSFEI
TE 41 23 XSTEI
21 XSTEXI
CE 43 25 XSCEI
DFT 37 29 XSDFCT
PI 36 27 XSSBAD
32 XSDATA
31 XSCLK
30 XSCSJ
48 XGPIO2
17 XSRFRPLP
COMPARATOR
20 XSRFRP
U7 (2/2)
VREF
SMOTOR
15 XSMOTOR
SSPDON
35 XSSPDON
SFGIN
34 XSFGIN
HOMESW
41 XMP1_6
GAINSW
52 XGPIO0
RFSW
57 XMP1_0
51 XGPIO1
44 XMP1_4
40 XMP1_7
45 XMP1_3
11 XSFOCUS
12 XSTRACK
13 XSSLEG
9 XSRFGC
33 XSLDC
9 9
XHD0 -
XHD15
XHA0 96
XHA1 98
XHA2 95
XHCS1J 94
XHCS16J 99
XHCS3J 93
XHINTJ 100
XHIORDYJ 102
XHIOWJ 104
XHIORJ 103
XHRSTJ 50
XRD0 -
DQ0 - DQ15
XRD15
16 Mbit
SD-RAM
U4
XRA0 -
A0 - A11
XRA11
XRSDCLK 143 35 CLK
XRWEJ 142 WE
15
XROEJ 147 18 CS
XRRASJ 144 17 RAS
XRCASJ 145 16 CAS
XMD0 -
DQ0 - DQ7
XMD7
FLASH
XMA0 -
A0 - A15
MEMORY
XMA15
U2
XMWRJ 72 7 WE
XMPSENJ 54 32 OE
XMFSCSJ 46 30 CE
60
XOSC2
Y1
33.8688MHz
XOSC1
59
RESET SIGNAL
XCRSTJ 53 GENERATOR
U3
+3.3V
DVD +3.3V REGULATOR B+5V
Q1
MV-900SDS
HD0 - HD15
HA0
HA1
HA2
TO
MAIN UNIT
HCS1J
HCS16J
HCS3J
HINTJ
IORDY
IOWJ
IORJ
ENDSW
RST
• SIGNAL PATH
: DVD (VIDEO)
: DVD (AUDIO)