Element PLX-4202B service manual
Plasma Television
Service Manual
Chassis： MT5371
Product Type：PLX-4202B
PLX-5002B
Ver 1.0
June 2007
Plasma TV Service Manual
Contents
Contents.......................................................................................................................................................................- 2 -
Service Manual ...........................................................................................................................................................- 3 -
1. Precautions and notices.....................................................................................................................................- 3 -
1.1 Warning...................................................................................................................................................- 4 -
1.2 Notes.......................................................................................................................................................- 7 -
2. Product Function Specifications.....................................................................................................................- 11 -
2.1 Product Function...................................................................................................................................- 11 -
2.2 Specifications........................................................................................................................................- 13 -
3. PDP panel module ..........................................................................................................................................- 14 -
3.1 General Specifications..........................................................................................................................- 14 -
3.2 BLOCK DIAGRAM.............................................................................................................................- 15 -
4. Chassis Layout and Overall Wiring Diagrams ...............................................................................................- 17 -
4.1 Boards and Chassis Layout...................................................................................................................- 17 -
4.2 Connectors............................................................................................................................................- 19 -
4.3 Wires and Cables Overall Wiring Diagram(s)......................................................................................- 20 -
5. Factory/Service OSD Menu and Adjustment..................................................................................................- 22 -
5.1 To enter the Factory OSD Menu...........................................................................................................- 22 -
5.2 Factory OSD Menu............................................................................................................................... - 22 -
5.3 Designer Menu......................................................................................................................................- 23 -
6. Software Upgrading........................................................................................................................................- 26 -
6.1 Get ready for upgrading........................................................................................................................- 26 -
6.2 Upgrading with the MtkTool................................................................................................................- 28 -
7. Troublesho oting..............................................................................................................................................- 32 -
7.1 Troubleshooting for Remote Control....................................................................................................- 32 -
7.2 Troubleshooting for Function Key........................................................................................................- 33 -
7.3 TV won’t Power On..............................................................................................................................- 34 -
7.4 Troubleshootin g for Au dio....................................................................................................................- 35 -
7.5 Troubleshooting for TV/VGA/HDMI/YPbPr input..............................................................................- 36 -
7.6 Troubleshootin g for Video/S-Video input.............................................................................................- 37 -
8. Explode View and BOM.................................................................................................................................- 38 -
9. Schematic circuit diagram..............................................................................................................................- 39 -
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Plasma TV Service Manual
Service Manual
1. Precautions and notices
BEFORE SERVICING THE PDP TV, READ THE SAFETY PRECAUTIONS IN THIS
MANUAL.
WHEN REPLACEMENT PARTS ARE REQUIRED, BE SURE TO USE
REPLACEMENT PARTS SPECIFIED BY THE MANUFACTURER.
Proper service and repair is important to the safe, reliable operation of all Element
Equipment. The service procedures recommended by Element and described in this
Service Guide are effective methods of performing service operations. Some of these
service operations require the use of tools specially designed for the purpose. The special
tools should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and NOTICES
which should be carefully read in order to minimize the risk of personal injury to service
personnel. The possibility exists that improper service methods may damage the
equipment. It is also important to understand that these CAUTIONS and NOTICES ARE
NOT EXHAUSTIVE. Element could not possibly know, evaluate and advise the service
trade of all conceivable ways in which service might be done or of the possible
hazardous consequences of each way. Consequently, Element has not undertaken any
such broad evaluation. Accordingly, a serviceman that uses a service procedure or tools,
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Plasma TV Service Manual
which are not recommended by Element, must first satisfy himself thoroughly that
neither his safety nor the safe of the equipment will be jeopardized by the service
method selected.
1.1 Warning
1.1.1
Critical components having special safety characteristics are identified with a
by the
Ref. No. in the parts list. Use of substitute replacement parts, which do not have the
same specified safety characteristics, may create shock, fire, or other hazards.
Under no circumstances should the original design be modified or altered without
written permission from Element. Element assumes no liability, express or implied,
arising out of any unauthorized modification of design. Serviceman assumes all liability.
DANGERCAUTION CAUTION
TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY
ORIGINAL MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH
THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE GUIDE.
1.1.2.
All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD).
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Careless handling during repair can reduce life drastically. When repairing, make sure
that you are connected with the same potential as the mass of the set by a wristband with
resistance. Keep components and tools also at this same potential.
1. Never replace modules or other components while the unit is switched on.
2. When making settings, use plastic rather than metal tools. This will prevent any
short circuits and the danger of a circuit becoming unstable.
1.1.3
To prevent electrical shock, do not use this polarized ac plug with an extension cord,
receptacle, or the outlet unless the blades can be fully inserted to prevent blade exposure.
Plasma TV Service Manual
To prevent electrical shock, match wide blade or plug to wide slot, fully insert.
1.1.4
When replacement parts are required, be sure to use replacement parts specified by the
manufacturer or have the same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other hazards.
1.1.5
Safety regulations require that after a repair the set must be returned in its original
condition. In particular attention should be paid to the following points.
-Note: The wire trees should be routed correctly and fixed with the mounted cable
clamps.
-The insulation of the mains lead should be checked for external damage.
1.1.6
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(1) Do not touch Signal and Power Connector while this product operates. Do not
touch EMI ground part and Heat Sink of Film Filter.
(2) Do not supply a voltage higher than that specified to this product. This may damage
the product and may cause a fire.
(3) Do not use this product in locations where the humidity is extremely high, where it
may be splashed with water, or where flammable materials surround it. Do not install
or use the product in a location that does no satisfy the specified environmental
conditions. This may damage the product and may cause a fire.
(4) If a foreign substance (such as water, metal, or liquid) gets inside the panel module,
Plasma TV Service Manual
immediately turn off the power. Continuing to use the product may cause fire or
electric shock.
(5) If the product emits smoke, and abnormal smell, or makes an abnormal sound,
immediately turn off the power. Continuing to use the product, it may cause fire or
electric shock.
(6) Do not disconnect or connect the connector while power to the product is on. It
takes some time for the voltage to drop to a sufficiently low level after the power has
been turned off. Confirm that the voltage has dropped to a safe level before
disconnecting or connecting the connector.
(7) Do not pull out or insert the power cable from/to an outlet with wet hands. It may
cause electric shock.
(8) Do not damage or modify the power cable. It may cause fire or electric shock.
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(9) If the power cable is damaged, or if the connector is loose, do not use the product:
otherwise, this can lead to fire or electric shock.
(10) If the power connector or the connector of the power cable becomes dirty or dusty,
wipe it with a dry cloth. Otherwise, this can lead to fire.
(11) PDP Module uses a high voltage (Max.450V dc). Keep the cautions concerning
electric shock and do not touch the Device circuitry when handling the PDP Unit. And
because the capacitor of the Device circuitry may remain charged at the moment of
Power OFF, standing by for 1 minute is required in order to touch the Device circuitry.
(12)Use only with the cart, stand, tripod, bracket, or table specified by the
Plasma TV Service Manual
manufacturer, or sold with the apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-over.
1.2 Notes
Notes on Safe Handling of the Plasma Display and during service
The work procedures shown with the Note indication are important for ensuring the
safety of the product and the servicing work. Be sure to follow these instructions.
• Before starting the work, secure a sufficient working space.
• At all times other than when adjusting and checking the product, be sure to turn OFF
the POWER Button and disconnect the power cable from the power source of the TV
during servicing.
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• To prevent electric shock and breakage of PC board, start the servicing work at least 30
seconds after the main power has been turned off. Especially when installing and
removing the power supply board and the SUS board in which high voltages are applied,
start servicing at least 2 minutes after the main power has been turned off.
• While the main power is on, do not touch any parts or circuits other than the ones
specified. The high voltage power supply block within the PDP module has a floating
ground. If any connection other than the one specified is made between the measuring
equipment and the high voltage power supply block, it can result in electric shock or
activation of the leakage-detection circuit breaker.
Plasma TV Service Manual
• When installing the PDP module in, and removing it from the packing carton, be sure
to have at least two persons perform the work while being careful to ensure that the
flexible printed-circuit cable of the PDP module does not get caught by the packing
carton.
• When the surface of the panel comes into contact with the cushioning materials, be
sure to confirm that there is no foreign matter on top of the cushioning materials before
the surface of the panel comes into contact with the cushioning materials. Failure to
observe this precaution may result in, the surface of the panel being scratched by foreign
matter.
• When handling the circuit board, be sure to remove static electricity from your body
before handling the circuit board.
• Be sure to handle the circuit board by holding the large parts as the heat sink or
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transformer. Failure to observe this precaution may result in the occurrence of an
abnormality in the soldered areas.
• Do not stack the circuit boards. Failure to observe this precaution may result in
problems resulting from scratches on the parts, the deformation of parts, and
short-circuits due to residual electric charge.
• Routing of the wires and fixing them in position must be done in accordance with the
original routing and fixing configuration when servicing is completed. All the wires are
routed far away from the areas that become hot (such as the heat sink). These wires are
fixed in position with the wire clamps so that the wires do not move, thereby ensuring
Plasma TV Service Manual
that they are not damaged and their materials do not deteriorate over long periods of time.
Therefore, route the cables and fix the cables to the original position and states using the
wire clamps.
• Perform a safety check when servicing is completed. Verify that the peripherals of the
serviced points have not undergone any deterioration during servicing. Also verify that
the screws, parts and cables removed for servicing purposes have all been returned to
their proper locations in accordance with the original setup.
• A glass plate is positioned before the plasma display. This glass plate can be cleaned
with a slightly humid cloth. If due to circumstances there is some dirt between the
glass plate and the plasma display panel it is recommended to do some maintenance
by a qualified service employee only.
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The lightning flash with arrowhead symbol, within an equilateral
triangle is intended to alert the user to the presence of uninsulated
dangerous voltage within the products enclosure that may be of sufficient magnitude to
constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the set.
Plasma TV Service Manual
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Plasma TV Service Manual
2. Product Function Specifications
2.1 Product Function
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Plasma TV Service Manual
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2.2 Specifications
Plasma TV Service Manual
Model
Diagona l display s iz e
Television system
Audio mu ltiplex
Channe l cov er a ge
PC mode
YPbPr/YCbCr m ode
Resolutio n 1024 768×
Powe r s ourc e
Powe r c ons um pt ion
Audio powe r
Cone c tion Int e r fac e
PLX-4202B
42 inches
Ame r ica n TV standa rd ATSC /NTS C sys t e m
BTSC system
VHF: 2~13 UHF: 14 69 CATV:1~~125
Digital Terrestrial Broadcast (8VSB): 2 9
Digital cable (64/256 QAM): 1 35
640 480/60Hz ,800 600/60Hz,1024 768/60Hz×× ×
480I/ 6 0Hz,480P/ 60Hz, 720P/60 Hz,10 80 I/60Hz
AC 120 V , 60 Hz
350W
RF input: Cable/ Antenna 1×
VIDEO input: VIDEO 2×
S-VIDEO 2×
COMPONENT 2×
HDMI 2×
VIDEO output: VIDEO 1
GRAPHIC input: Analog RGB 1 5 pin 1×
AUDIO
C om pone nt Audio 2
PC Audio Input 1
AUD IO output: AV Audio 1
Digital audio output 1
PLX-5002B
50 inches
~6
~1
1366 768×
500W
10W+10W
×
input: A V A udio 2×
×
×
×
×
Dimensions
Weight
Supplied accessories
Length: 41 .4 inc he s
Width: 14.2 inches
Heig ht: 30 .2 inc he s
80.3 lbs
Remote control, AC cord, Bat teries
St a nd Assem ble Guide, QS G, Remote Contr ol Guide
Length: 49 inche s
Width: 14.2 inche s
Heig ht: 3 6 .3inches
109.5 lbs
,
User Manual Warranty Card ,
NOTE: Specifications and design are subject to possible modifications without notice due to
improvements。
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Plasma TV Service Manual
3. PDP panel module
3.1 General Specifications
Model Name
Number of Pixels
Pixel Pitch
Cell Pitch
Display Area
Outline
Dimension
Pixel Type
Number of
Gradations
Aspect Ratio
Peak Brightness
Contrast Ratio
Weight
Power
Consumption
Expected
Life-time
Income inspections please refer to panel specification of LGE 42X4and 50X4.
PDP42X4#### (42X4
Model)
1024(H) × 768(V) 1366(H) × 768(V) 1 pixel=3 RGB cells
900㎛ (H) × 676㎛ (V) 810㎛ (H) × 810㎛ (V)
300㎛ (H) × 676㎛ (V) 270㎛ (H) × 810㎛ (V) Green Cell basis
921.5(H) × 519.0(V) ±
0.5mm
1005(H) × 597(V) ×
60.7(D)±1mm
RGB Closed type RGB Closed(Well) type
(R)1024 × (G)1024 ×
(B)1024
16:9 16:9
Typical 1,500cd/㎡ Typical 1500cd/㎡ 1/100 White Window
Typical 180:1 Average130:1 (In a bright room with
Typical 10,000:1 Maximum 10,000:1 In a dark room 1/100
14.2 Kg ± 0.5 Kg 20.4±0.5 Kg Net 1EA
Max.330W Max. 400 W Full White
60,000 Hours 60,000 Hours
PDP50X4#### (50X4
Model)
1106.5(H) × 622.1(V) ±
0.5mm
1190(H) × 700(V) ×
58(D) ± 1mm
(R)1,024 × (G)1,024 ×
(B)1,024 colors
Comments
pattern at center)
100Lux at center)
White Window pattern
at center)
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Plasma TV Service Manual
3.2 BLOCK DIAGRAM
3.2.1 PLX-4202B
Note: Applied Voltage level is specified at the time when Full-White pattern is displayed on the panel.
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3.2.2 PLX-5002B
Plasma TV Service Manual
Note: Applied Voltage level is specified at the time when Full-White pattern is displayed on the panel.
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Plasma TV Service Manual
4. Chassis Layout and Overall Wiring Diagrams
4.1 Boards and Chassis Layout
PLX-4202B
PLX-4202B System
PLX-4202B Panel
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