Sony DVP-NS300 Training Manual page 38

All switches = Open
Mode
No disc
Loading
Disc IN
Mini
Disc In
CD Playback
When SW-14 closes again during disc overshoot, the loading sequence ends (motor stops) and CD Playback
sequence begins. The CD clamping motor turns ON to raise the laser assembly platform to the centered disc.
Rotary encoder 2 (Figure 5-6) monitors the position of the laser platform. As the laser platform reaches the
clamped position, the loading rollers are geared away from the disc. The clamped disc can spin / play.
SW
17 18
16
SW
M M
M
SW
O C
O
FIGURE 8-4 - DISC SWITCH STATES
Table 8-1 - Disc Position Switches
SW-18 SW-17
Open Open
Moment Moment
ary ary
Closed Open
Closed Open
SW
SW
13
15
14
SW SW
C C
M
SW SW
C C
C
SW-16 SW-15
Open Open
Moment Closed
ary
Open Closed
Open Closed
36
8. Mechanical Operation
Mode
SW
11
Switch
boards
a) No Disc
SW
M
Switch
boards
B) Loading
SW
O
Switch
boards
c) Disc IN
SW-14 SW-13
Open Open
Closed Closed
Closed Closed
Open Open
SW-11
Open
Moment
ary
Open
Open