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website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
PLASMA MONITOR
SERVICE MANUAL
CHASSIS : RF-04FA
MODEL : MW-71PY10/G
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS
SAFETY PRECAUTIONS .......................................................................................2
DESCRIPTION OF CONTROLS .............................................................................3
SPECIFICATIONS ...................................................................................................8
ADJUSTMENT INSTRUCTIONS ............................................................................9
BLOCK DIAGRAM ................................................................................................14
EXPLODED VIEW .................................................................................................16
EXPLODED VIEW PARTS LIST ...........................................................................17
REPLACEMENT PARTS LIST..............................................................................18
SCHEMATIC DIAGRAM ...........................................................................................
PRINTED CIRCUIT BOARD .....................................................................................
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 Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during Do not use a line Isolation Transformer during this check.
the servicing of a receiver whose chassis is not isolated from Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
the AC power line. Use a transformer of adequate power rating between a known good earth ground (Water Pipe, Conduit, etc.)
as this protects the technician from accidents resulting in and the exposed metallic parts.
personal injury from electrical shocks. Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
It will also protect the receiver and it's components from being Reverse plug the AC cord into the AC outlet and repeat AC
damaged by accidental shorts of the circuitry that may be voltage measurements for each exposed metallic part. Any
inadvertently introduced during the service operation. voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
If any fuse (or Fusible Resistor) in this monitor is blown, replace In case any measurement is out of the limits specified, there is
it with the specified. possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
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. Leakage Current Hot Check circuit
Due to high vacuum and large surface area of picture tube,
AC Volt-meter
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
Good Earth Ground
such as WATER PIPE,
Leakage Current Cold Check(Antenna Cold Check) To Instrument's CONDUIT etc.
With the instrument AC plug removed from AC source, 0.15uF
exposed
connect an electrical jumper across the two AC plug prongs. METALLIC PARTS
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 1.5 Kohm/10W
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1M and 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.
DESCRIPTION OF CONTROLS
Front Panel Controls
INDEX
Switches
LED Display
on or off.
INPUT MENU VOL
Sub power Button Remote
Control
E, D Buttons
Sensor
VOLUME (F,G) Buttons
MENU Button Power Indicator
Illuminates red in standby
INPUT Button mode, Illuminates green when
the monitor is turned on.
Back Connection Panel
Remote Control Port S-Video Input EXTERNAL SPEAKER
Connect your wired Connect S-Video out from (8 ohm output)
remote control here. an S-VIDEO device to the Connect to optional
S-VIDEO input. external speaker(s).
DVI Input/Audio Input/RGB Input
EURO SCART SOCKET * For further information,
Connect the monitor output connector refer to `Speaker &
Connect the euro scart of
from a PC to the appropriate input port. Speaker Stand' manual.
the VCR to these sockets.
COMPONENT VIDEO
INPUT 2 INPUT 2 ( )R( ) ( )L ( )
REMOTE COMPONENT VIDEO
RS-232C INPUT HDMI DVI INPUT AUDIO INPUT RGB INPUT INPUT 1
VIDEO3 VIDEO4
CONTROL (CONTROL/SERVICE) INPUT 1
R L R MONO L EXTERNAL SPEAKER AC INPUT
S-VIDEO
VIDEO AUDIO AUDIO VIDEO
Audio/Video Input
Connect audio/video output from
HDMI an external device to these jacks.
Connect a HDMI Component Input (1,2)
signal to this jack. Connect a component video/audio
device to these jacks.
Power Cord Socket
This monitor operates on an AC power. The voltage is
RS-232C INPUT
indicated on the Specifications page. Never attempt to
(CONTROL/SERVICE) PORT
operate the monitor on DC power.
Connect to the RS-232C port
on a PC.
- When using the remote control, aim it at the remote control sensor on the monitor.
- Under certain conditions such as if the remote IR signal is interrupted, the remote control may not function. Press
the key again as necessary.
MODE
Selects the remote operating mode: MNT,
VCR, DVD, CABLE, HDSTB or AUDIO.
LIGHT
Select other operating modes, for the
Illuminates the remote control buttons.
remote to operate external devices.
INPUT
POWER
Selects: Video1-2-3-4, Component 1-2,
Turns your monitor or any other pro-
RGB-DTV (or RGB-PC),
grammed equipment on or off, depending
DVI-DTV (or DVI-PC), HDMI input sources.
LIGHT
MODE POWER on mode.
PIP PIP DW DW
INPUT
Selects the PIP mode. Selects the DW mode.
NUMBER buttons DASP
Dosen't work for monitor mode. To select the sound appropriate to your
viewing program character:
APC DASP SRS TSXT, Flat, Music, Cinema, Sports,
APC
Adjusts the factory preset picture according or User (Refer to p.21)
to the room.
MUTE SLEEP
SLEEP
MUTE VOL CH
Sets the Sleep Timer.
Switches the sound on or off. CHANNEL UP/DOWN
VOLUME UP/DOWN WIN. POSITION SPLIT ZOOM Selects available channels found with Auto
Increases/decreases the sound level. WIN. SIZE
program. Dosen't work for monitor mode.
WIN. SIZE SPLIT ZOOM
Adjusts the sub picture size. Enlarges the picture.
ENTER
XD
Switches the XD on or off.
WIN.POSITION (Refer to p.24)
MENU EXIT
Moves the sub picture. PIP INPUT ARC EXIT
Clears all on-screen displays and returns to
THUMBSTICK PLAY PAUSE STOP RECORD
monitor viewing from any menu.
(Up/Down/Left/Right/ENTER)
Allows you to navigate the on-screen REW FF SKIP ARC
menus and adjust the system settings to Changes the picture format. (Refer to p.25)
your preference. VIDEO COM1 COM2 RGB
MENU DVI HDMI KEY LOCK INDEX
VCR/DVD BUTTONS
Brings up the main menu to the screen. Control some video cassette recorders or
PIP INPUT DVD player ("RECORD" button is not avail-
Selects the input source for able for DVD player).
the sub picture. VIDEO/COM1/COM2/RGB/DVI/HDMI
KEY LOCK Selects: Video1-2-3-4, Component 1-2,
Switches the key lock on or off. RGB-DTV (or RGB-PC), DVI-DTV (or DVI-
PC), HDMI input sources.
INDEX
Switches LED Display on or off.
Accessory
Ensure that the following accessories are included with your plasma display. If an accessory is missing, please contact the dealer
where you purchased the product.
1.5V
1.5V
Owner's Manual Batteries Power Cord
MODE POWER
LIGHT
PIP DW
INPUT
APC DASP
MUTE SLEEP
VOL CH
WIN. POSITION SPLIT ZOOM
WIN. SIZE
ENTER
MENU EXIT
PIP INPUT ARC
PLAY PAUSE STOP RECORD
REW FF SKIP
VIDEO COM1 COM2 RGB
DVI HDMI KEY LOCK INDEX
Remote Control D-sub 15 pin cable DVI computer cable
Alcohol Soft cloth
(MW-71PY10G only ) (MW-71PY10G only )
CAUTION
CAUTION concerning the Power Cord :
Most appliances recommend they be connected to a dedicated circuit; that is, a single outlet circuit which powers only
that appliance and has no additional outlets or branch circuits. Check the specification page of this owner's manual to be
certain.
Do not overload wall outlets. Overloaded wall outlets, loose or damaged wall outlets, extension cords, frayed power
cords, or damaged or cracked wire insulation are dangerous. Any of these conditions could result in electric shock or fire.
Periodically examine the cord of your appliance, and if its appearance indicates damage or deterioration, unplug it, dis-
continue use of the appliance, and have the cord replaced with an exact replacement part by an authorized servicer.
Protect the power cord from physical or mechanical abuse, such as being twisted, kinked, pinched, closed in a door, or walked
upon. Pay particular attention to plugs, wall outlets, and the point where the cord exits the appliance.
Use a dedicated power cord. Do not modify or extend the power cord.
Do not install, remove, or reinstall the unit by yourself (customer).
For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. For installation,
always contact the dealer or an Authorized Service Center.
Do not use if the power cord or plug is damaged, or socket is loose. Use a dedicated outlet for this appliance.
Do not over bend the power cord and do not place anything on the power cord. Do not install the monitor near any sharp
edge to avoid wire damage.
Safety instruction (MW-71PY10G only)
When the trim becomes dirty or stained, softly polish the surface. (Use the soft cloth and alcohol supplied with this product.)
When polishing the surface, use gentle pressure. Heavy pressure can damage or discolor the surface.
Clean the surface quickly and use gentle pressure. Heavy pressure can damage or discolor the surface.
Keep the alcohol and the used cleaning towel out of the reach of children.
Carefully read all of the safety instruction on the alcohol receptacle.
Do not use anything to scrape or scratch at the surface of this unit, this will cause damage to the surface.
Use soft gloves while installing or removing this unit to prevent damaging the surface.
SPECIFICATIONS
V Application Range
This spec is applied to the 71"PDP MONITOR used RF-04FA Chassis.
V Specification
Each part is tested as below without special appointment.
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