Rf & Servo Circuit Diagram - LG GoldStar DVD5185 Service Manual

2. RF & SERVO CIRCUIT DIAGRAM
CD APC TR
CD Disc Recoding fail
CD VR TR
CD Disc detect error
DVD VR TR
Disc detect error
Focus Servo loop
Tracking Servo loop
Spindle Servo loop
Sled Servo loop
DVD APC TR
DVD Disc Recoding fail
Reference voltage
for normal servo
Close tray
Open tray
Moto Drive IC
P/up, Spindle, Loading
Motor not work
3-22
RF IC
Disc detect error
Check the
speed spindle
Tray Moving speed control
Find best point for Tracking, Focus Servo
-> Tracking, Focus Servo will fail
3-23
Ude Interface
with MPEG IC
Servo DSP IC
Distinguishing
Disc type
RF Signal
Test signal for PLL adjust Tray Moving speed control
'02. 12. 20
R10724A