DVP-S7000 (serv.man2) - Sony DVD Service Manual (repair manual). Page 5

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5-1. General Description of Servo Circuits

............................................................... 87

5-1-1. Optical Pickup Control .......................................................................................... 87
5-1-2. Sled Control ........................................................................................................... 87
5-1-3. Spindle Control ...................................................................................................... 87
5-1-4. Tilt Control ............................................................................................................ 87
5-1-5. Disc Loading and Chucking .................................................................................. 87
5-1-6. Front Door Open/Close .......................................................................................... 87
5-1-7. Disc Judgment ....................................................................................................... 87

5-2. Servo Operation at DVD Play

.............................................................................. 88

5-2-1. Optical Pickup Control .......................................................................................... 88
5-2-2. Sled Control ........................................................................................................... 95
5-2-3. Spindle Control ...................................................................................................... 97
5-2-4. Tilt Control ............................................................................................................ 98

5-3. Servo Operation at CD and Video CD Playing

............................................. 100

5-3-1. Optical Pickup Control ........................................................................................ 100
5-3-2. Sled Control ......................................................................................................... 104
5-3-3. Spindle Control .................................................................................................... 105
5-3-4. Tilt Control .......................................................................................................... 106

5-4. Disc Loading and Chucking

................................................................................ 107

5-4-1. Motor Driver ........................................................................................................ 107
5-4-2. Tray Position Detection ....................................................................................... 108
5-4-3. Each Operation .................................................................................................... 109

5-5. Front Door Open/Close

........................................................................................ 110

5-5-1. Motor Driver ........................................................................................................ 111
5-5-2. Door Position Detection ...................................................................................... 111
5-5-3. Description of Each Operation ............................................................................ 112

5-6. Disc Judgment

......................................................................................................... 113

5-6-1. DVD/CD Disc Judgment ..................................................................................... 113
5-6-2. Disc Size Judgment .............................................................................................. 115
5-6-3. SL (Single Layer) or DL (Dual Layer) Disc Judgment ....................................... 116

5-7. Block Diagram (Servo)

......................................................................................... 117