LG GSA-4167B - Manual (Page 33)

37
2. Hardware Block Diagram of LightScribe Label Printing
Host PC
(Spindle)
uP (DSP)
P
o
wer
Drive
Analog Signal Pr
ocessor
MECHANISM
Optical Pic
k-up
Optical Encoder
(Sled) (T
ra
c
k
)
(Tilt) (F
ocus)
RFOUT
Spindle Motor Step Motor T
rac
k Actuator
Tilt Actuator F
ocus Actuator
Laser P
o
w
er Ref
erence
Wr
ite Str
ategy Control
Buff
er
Memor
y
SER
V
O
Signals
RF Cell Signals
Laser P
o
w
er Monitor Signal
Optical FG
CIr
cuit