32SL80YD.pdf - Internal Use Only North\/Latin America Europe\/Africa Asia\/Oceania http\/aic.lgservice.com http\/eic.lgservice.com http\/biz.lgservice.com LCD

32SL80YD.pdf - Internal Use Only North/Latin America...

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LCD TVSERVICE MANUALCAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.CHASSIS : LJ91TMODEL : 32SL80YD 42SL80YD-SANorth/Latin AmericaEurope/AfricaAsia/OceaniaInternal Use OnlyPrinted in KoreaP/NO : MFL61862414 (0911-REV01)
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved. Only for training and service purposes- 2 -CONTENTSCONTENTS ..............................................................................................2PRODUCT SAFETY ..................................................................................3SPECIFICATION........................................................................................6ADJUSTMENT INSTRUCTION...............................................................14TROUBLE SHOOTING............................................................................17BLOCK DIAGRAM...................................................................................58EXPLODED VIEW ..................................................................................59SVC. SHEET ...............................................................................................
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LGE Internal Use OnlyCopyright LG Electronics. Inc. All right reserved. Only for training and service purposes- 3 -SAFETY PRECAUTIONSMany electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Exploded View.It is essential that these special safety parts should be replaced with the same components as recommended in this manual to preventShock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.General GuidanceAn isolation Transformer should always be usedduring theservicing of a receiver whose chassis is not isolated from the ACpower line. Use a transformer of adequate power rating as thisprotects the technician from accidents resulting in personal injuryfrom electrical shocks.It will also protect the receiver and it's components from beingdamaged by accidental shorts of the circuitry that may beinadvertently introduced during the service operation.If any fuse (or Fusible Resistor) in this TV receiver is blown,replace it with the specified.When replacing a high wattage resistor (Oxide Metal Film Resistor,over 1W), keep the resistor 10mm away from PCB.Keep wires away from high voltage or high temperature parts.Before returning the receiver to the customer,always perform an AC leakage current checkon the exposedmetallic parts of the cabinet, such as antennas, terminals, etc., tobe sure the set is safe to operate without damage of electricalshock. Leakage Current Cold Check(Antenna Cold Check)With the instrument AC plug removed from AC source, connect anelectrical jumper across the two AC plug prongs. Place the ACswitch in the on position, connect one lead of ohm-meter to the ACplug prongs tied together and touch other ohm-meter lead in turn toeach exposed metallic parts such as antenna terminals, phonejacks, etc. If the exposed metallic part has a return path to the chassis, themeasured resistance should be between 1Mand 5.2M. When the exposed metal has no return path to the chassis thereading must be infinite.An other abnormality exists that must be corrected before thereceiver is returned to the customer.
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