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LCD TV
SERVICE MANUAL
CHASSIS : ML-038B

MODEL : RT-30LZ13
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.




Oct., 2003
P/NO : 3828VD0120J Printed in Korea
CONTENTS




CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

CONTROL DESCRIPTIONS......................................................................4

SPECIFICATIONS......................................................................................8

ADJUSTMENT INSTRUCTIONS .............................................................11

TROUBLE SHOOTING ............................................................................13

PRINTED CIRCUIT BOARD ....................................................................14

BLOCK DIAGRAM...................................................................................18

EXPLODED VIEW .................................................................................. 20

EXPLODED VIEW PARTS LIST ..............................................................21

SVC. SHEET ...............................................................................................




- 2 -
PRODUCT SAFETY
IMPORTANT SAFETY NOTICE 1. Immediately before handling any semiconductor component or
This manual was prepared for use only by properly trained audiovisual service semiconductor-equipped assembly, drain off any electrostatic charge on the
technicians. When servicing this product, under no circumstances should the body by touching a known earth ground. Alternatively, obtain and wear a
original design be modified or altered without permission from LG Electronics commercially available discharging wrist strap device, which should be
Inc. All components should be replaced only with types identical to those in the removed for potential shock reasons prior to applying power to the unit under
original circuit and their physical location, wiring, and lead dress must conform test.
to original layout upon completion of repairs. If any fuse (or Fusible Resistor) in 2. After removing an electrical assembly equipped with ES devices, place the
this TV receiver is blown, replace it only with the factory specified fuse type and assembly on a conductive surface such as an ESD mat, to prevent
rating. When replacing a high wattage resistor (Oxide Metal Film Resistor, over electrostatic charge buildup or exposure of the assembly.
1W), keep the resistor 10mm away from PCB. Always keep wires away from 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
high voltage or high temperature parts. 4. Use only an anti-static solder removal device. Some solder removal devices
not classified as