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32LF15R PDF даташит

Спецификация 32LF15R изготовлена ​​​​«LG» и имеет функцию, называемую «LCD TV SERVICE MANUAL».

Детали детали

Номер произв 32LF15R
Описание LCD TV SERVICE MANUAL
Производители LG
логотип LG логотип 

30 Pages
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32LF15R Даташит, Описание, Даташиты
North/Latin America
Europe/Africa
Asia/Oceania
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
LCD TV
SERVICE MANUAL
CHASSIS : LP81A
MODEL : 32LF15R
32LF15R-MA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL41394480 (0904-REV00)
Printed in Korea
Free Datasheet http://www.Datasheet4U.com









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32LF15R Даташит, Описание, Даташиты
CONTENTS
CONTENTS .............................................................................................. 2
SAFETY PRECAUTIONS ......................................................................... 3
SPECIFICATION ....................................................................................... 6
ADJUSTMENT INSTRUCTION ................................................................ 9
TROUBLE SHOOTING ........................................................................... 13
BLOCK DIAGRAM.................................................................................. 18
EXPLODED VIEW .................................................................................. 19
SVC. SHEET ...............................................................................................
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
-2-
LGE Internal Use Only
Free Datasheet http://www.Datasheet4U.com









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32LF15R Даташит, Описание, Даташиты
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 Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during the
servicing of a receiver whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this
protects the technician from accidents resulting in personal injury
from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently 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 check on the exposed
metallic parts of the cabinet, such as antennas, terminals, etc., to
be sure the set is safe to operate without damage of electrical
shock.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each exposed metallic parts such as antenna terminals, phone
jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1Mand 5.2M.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements for each exposed metallic part. Any voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
AC Volt-meter
To Instrument’s
exposed
METALLIC PARTS
0.15uF
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
1.5 Kohm/10W
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
-3-
LGE Internal Use Only
Free Datasheet http://www.Datasheet4U.com










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Номер в каталогеОписаниеПроизводители
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LG
32LF15R-MALCD TV SERVICE MANUALLG
LG

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