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2. RF & SERVO CIRCUIT DIAGRAM
Reference voltage for pick up
FOCUS SERVO LOOP
SPINDLE SERVO LOOP
TRACKING SERVO LOOP
SLED SERVO LOOP
RF Amplified
RF Amplified & Filtered
Motor drive IC
Tray open/close
Plup, Spindle, Loading Motor not work
Test pin for check spindle speed
DISC detect error
DVD reading fail
The final signal for RF
CD reading fail
3-19
3-20
DSP initializing signal
-servo is not work
Interface line with
MPEG IC
F.E
Find best point for Tracking
& focusing servo
T.E
Servo DSP IC
DV7732NS's STM MODEL
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