Circuit Diagrams; Rf Circuit Diagram - LG RH4820W Service Manual

CIRCUIT DIAGRAMS

1. RF CIRCUIT DIAGRAM

SPINDLE DVD IR/RW(Blank Disc Recognition)
SLED LASER POWER(ALPC)
TRACKING TOLT-DRV
FOCUS
Title-drv is not good.
(Level-shift IC)
PD Gai Control IC
(DRIVE IC) Focus & Spindle & Tracking
is not good(Op-Amp)
RF
Analog-Switch
Rd/Wr Toggle)
3-130 3-131
No sled & No Title
(DA-converter)