Service Manuals, User Guides, Schematic Diagrams or docs for : LG Monitor LG_RU-13LA60_[SM]

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LG_RU-13LA60_[SM]


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                                                                                          website:http://biz.LGservice.com
                                                                          e-mail:http://www.LGEservice.com/techsup.html




                                        LCD TV
                                        SERVICE MANUAL
                                        CHASSIS : ML-024C

                                        MODEL : RU-13LA60
                                        CAUTION
                                        BEFORE SERVICING THE CHASSIS,
                                        READ THE SAFETY PRECAUTIONS IN THIS MANUAL.




                          June, 2003
P/NO : 3828VD0131Z   Printed in Korea
                                            SAFETY PRECAUTIONS

                                               IMPORTANT SAFETY NOTICE
 Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
 Schematic Diagram and Replacement Parts List.
 It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
 X-RADIATION, Shock, Fire, or other Hazards.
 Do not modify the original design without permission of manufacturer.



General Guidance                                                       Leakage Current Cold Check(Antenna Cold Check)
                                                                       With the instrument AC plug removed from AC source, connect an
An lsolation Transformer should always be used during the              electrical jumper across the two AC plug prongs. Place the AC
servicing of a receiver whose chassis is not isolated from the AC      switch in the on positioin, connect one lead of ohm-meter to the AC
power line. Use a transformer of adequate power rating as this         plug prongs tied together and touch other ohm-meter lead in turn to
protects the technician from accidents resulting in personal injury    each exposed metallic parts such as antenna terminals, phone
from electrical shocks.                                                jacks, etc.
                                                                       If the exposed metallic part has a return path to the chassis, the
It will also protect the receiver and it's components from being       measured resistance should be between 1M and 5.2M.
damaged by accidental shorts of the circuitary that may be             When the exposed metal has no return path to the chassis the
inadvertently introduced during the service operation.                 reading must be infinite.
                                                                       An other abnormality exists that must be corrected before the
If any fuse (or Fusible Resistor) in this TV receiver is blown,        receiver is returned to the customer.
replace it with the specified.
                                                                       Leakage Current Hot Check (See below Figure)
When replacing a high wattage resistor (Oxide Metal Film Resistor,     Plug the AC cord directly into the AC outlet.
over 1W), keep the resistor 10mm away from PCB.                        Do not use a line Isolation Transformer during this check.
                                                                       Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
Keep wires away from high voltage or high temperature parts.           between a known good earth ground (Water Pipe, Conduit, etc.)
                                                                       and the exposed metallic parts.
Due to high vacuum and large surface area of picture tube,             Measure the AC voltage across the resistor using AC voltmeter
extreme care should be used in handling the Picture Tube. Do not       with 1000 ohms/volt or more sensitivity.
lift the Picture tube by it's Neck.                                    Reverse plug the AC cord into the AC outlet and repeat AC voltage
                                                                       measurements for each esposed metallic part. Any voltage
Before returning the receiver to the customer,                         measured must not exceed 0.75 volt RMS which is corresponds to
                                                                       0.5mA.
always perform an AC leakage current check on the exposed              In case any measurement is out of the limits sepcified, there is
metallic parts of the cabinet, such as antennas, terminals, etc., to   possibility of shock hazard and the set must be checked and
be sure the set is safe to operate without damage of electrical        repaired before it is returned to the customer.
shock.
                                                                       Leakage Current Hot Check circuit

                                                                                               AC Volt-meter




                                                                                                                   Good Earth Ground
                                                                                                                   such as WATER PIPE,
                                                                        To Instrument's                            CONDUIT etc.
                                                                                                     0.15uF
                                                                        exposed
                                                                        METALLIC PARTS


                                                                                                 1.5 Kohm/10W
                                                       TABLE OF CONTENTS

SPECIFICATIONS.................................................................4


DESCRIPTION OF CONTROLS ...........................................5


ADJUSTMENT INSTRUCTION.............................................8


BLOCK DIAGRAM.................................................................9


EXPLODED VIEW...............................................................10


EXPLODED VIEW PARTS LIST .........................................11


REPLACEMENT PARTS LIST ............................................12


SCHEMATIC DIAGRAM..........................................................


PRINTED CIRCUIT BOARD ...................................................
                                    SPECIFICATIONS


Model                                     RU-13LA60

        Horizontal size (inches)          13.6
        Height (inches)                   14.4
        Depth (inches)                     6.6
        Weight (pounds)                    10

Power requirements                        AC 110-240V ~ 50/60Hz


Television system                         NTSC

Television channels                       VHF : 2 ~ 13, UHF : 14 ~ 69
                                          Cable : 1 ~ 125

Television Screen                         LCD Panel

Power consumption                         45 W

Audio output                              1W+1W

External input ports                      Power cord socket (1)
                                          Component (480i) input (1 set)
                                          S-VIDEO input (1)
                                          Headphone jack (1)
                                          Video/Audio input (1 set)
                                          Antenna input (1)

Power supply cord set                       Standard North America three wire earth-grounding
                                   with flexible cord SJT type or higher type.

         CAUTION: If replacing a part becomes necessary, replace the part with an exact duplicate.
                  Contact any LG authorized service center.
              DESCRIPTION OF CONTROLS


Front of the TV




                                           Side Control Panel




                                             ch       Channel Buttons




                                             vol      Volume Buttons



                                            enter     Enter Button


                                            menu      Menu Button

                                              tv      TV



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