Zenith XBV443 - SERVO Block Diagram

3-68
DISC
PICK UP
CD : A/B/C/D/E/F DVD:A/B/C/D
LM
+, LM-
FM+, FM-
DVD_LD,_CD_LD
F+/F-/T+/T-
Loading Motor
M
M
Spindle Motor Feeding Motor
M
SPM+, SPM--
OPEN S/W
CLOSE S/W
LIMIT S/W
VR-DVD VR-CD PSEL0 PSEL1 V_REFD
IC601
STI5589
MPEG DECODER
DSP_RST IRQ2 IIC_DATA IIC_CLK RS_ECCB_START RS_DATA RS_DVALID RS_BCLK RS_ERROR_EN RS_ERROR
Frontend
Interface
(sector processor
CPRM,
DVD decryption)
Memory Interface
Diagnostics Controller
Micro Processor
ST20
MPEG Decoder
Sub-picture
OSD
Audio Decoder
Video Encoder
& DAC
Audio DSP
IC202
STL6317
CD / DVD DSP
Input stage
Laser
Control
Channel
Processing
Mpeg decoder
Interface
Motor
Actuator
Control
Servo
Processing
IC203
NJM3414
FG Generation
Block
FACT TACT Actuator mute Spindle on SLED LOPEN LCLOSE PDM
MPD
PC(O)
DVW-7000
IC201
L6560
Motor Driver
2. SERVO BLOCK DIAGRAM