3. SERVO BLOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-l-2. Sled Control ...........................................................................................................
3-l-3. Spindle Control ......................................................................................................
3-l-4. Tilt Control ............................................................................................................
3-l-6. Disc Judgment .......................................................................................................
3-2-2. Sled Control ...........................................................................................................
3-2-3. Spindle Control .....................................................................................................
3-2-4. Tilt Control ............................................................................................................
3-3-2. Sled Control ...........................................................................................................
3-3-3. Spindle Control ......................................................................................................
3-3-4. Tilt Control ............................................................................................................
3-4-l. Motor Driver .........................................................................................................
3-5-3. Differentiation ............ . ..........................................................................................
3-6. Block Diagram (Servo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. IC PIN DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-l. ARP CXDl865R (IC806 on MB-80 board) .....................................................
4-l-2. Pin Functions .........................................................................................................
4-2. AV Decoder L64020 (IC203 on MB-78 board) ..............................................
4-2-2. Pin Assignment ......................................................................................................
4-3. Digital Signal Processor CXD8730R
4-3-2. Pin Functions .........................................................................................................
4-4. AC-3 Decoder MB86342 (IC104 on MB-78 board). .................................... .70
4-4-2. Pin Functions .........................................................................................................
33
33
33
33
33
33
33
33
34
34
41
44
46
46
50
50
50
50
52
52
52
53
5 5
55
55
57
62
63
65
66
71