Spindle Drive And Motor Waveform - LG MDD105 Service Manual

4. SPINDLE DRIVE AND MOTOR WAVEFORM

1) When focus search failed or there is no disc on tray
9
IC401 Pin3 F+
10
FIG. 4-1
IC401 Pin6 FOD
TR+
TR-
F+
F-
C419
473P R444
R447
1K 9K1
F0D
TRD
R422 R404
C421 C425
1K 20K
103P 103P
R452
R408
G N D G
100R
DRV_MUTE
3K3
GND
C188 NC
CLOSE
OPEN
LOAD+
LOAD-
C438 C439
100P 100P
GND
1
2
3
4
5
6
7
C409
C414
220uF
104P
10V
2
N D
8
9
C413 104P
10
11
12
13
1
C408
C428
220uF
104P
10V
GND
3-19
DO1-
10
DO1+
DO2-
DO2+
9
VCC1
IN2
IC401
IN1
IP9011
9 P G N D
MUTE
CTL3
REV3
FWD3
SVCC
DO3+
4 D O - 3