Philco PH-919 Service Manual page 7

4. Block Diagram
Disc motor unit
Spindle
Motor
Spindle Motor Drive
Spindle motor single for CLV
Disc
Laser
pickup
Focus Track
Coil Coil
BA5954FP
4ch motor Drive
BA6208
MT1369 MT1369
(RF AMP) (Decode/Servo)
Laser Driver ATAPI
Equalizer Buffer Manager
Error Gen Demodulator
Error Correction
Focus & Tracking
Loading
Sied Loading
Motor Motor
Fiash
Memory
8Mbit
AuDdio D/A
WM8720
SDRAM
1*16MHzX2
PLI
Video D/A
CS4955
1/F
Conn
(frant pannel)
80c52
System Controller
5