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TRAINING MANUAL


PLASMA DISPLAY PANELS - 2006

                           MODELS COVERED:
                               60PY2DR
                               60PX4DR
                               50PY2DR
                               50PX4DR
                               50PC1DR
                               50PC1DRA




                           Service
                       Digital Display
IMPORTANT SAFETY NOTICE
The information in this training manual is intended for use by individuals possessing an adequate background in
electrical equipment, electronic devices, and mechanical systems. In any attempt to repair a television or monitor,
personal injury and property damage can result. The manufacturer or seller maintains no responsibility for the interpretation
of this information, nor can it assume any liability in connection with its use. When servicing this product, under no
circumstances should the original design be modified or altered without permission from LG Electronics. Unauthorized
modifications will not only void the warranty, but may lead to property damage or user injury. If wires, screws, straps,
clips, nuts, or washers used to complete a ground path are removed for service, they must be returned to their original
position and properly fastened.
CAUTION
To avoid personal injury, disconnect power before servicing this product. If electrical power is required for diagnosis or
test purposes, disconnect the power immediately after performing the necessary checks. Also be warned that many
household appliances present a weight hazard. At least two people should be involved in the installation or servicing of
such devices. Failure to consider the weight of an appliance could lead to physical injury.
ESD NOTICE
Some of the electronics in appliances are electrostatic discharge (ESD) sensitive. ESD can weaken or damage the electronics
in these appliances in a manner that renders them inoperative or reduces the time until their next failure. Connect a
wrist strap to a green ground connection point or unpainted metal in the appliance. Alternatively, you may touch your
finger repeatedly to a green ground connection point or unpainted metal in the appliance. Before removing a replacement
part from its package, touch the anti-static bag to a green connection point or unpainted metal in the appliance. Avoid
unnecessary contact with electronic parts or terminal contacts. Handle the electronic control assembly by its edges only.
When repackaging a failed electronic control assembly in an anti-static bag, observe the above instructions.
REGULATORY INFORMATION
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment
is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the
receiving antenna; Increase the separation between the equipment and receiver; Connect the equipment into an outlet
on a circuit different from that to which the receiver is connected; Consult the dealer or an experienced radio/TV
technician for help.
The responsible party for this device's compliance is:
LG Electronics of Alabama, Inc.
201 James Record Road
Huntsville, AL 35824, USA
Digital TV Hotline: 1-800-243-0000
                                       Published April 2006 by LG Training
                             Customer Service (and Part Sales): 1-800-243-0000
                            Technical Support (and Part Sales): 1-800-847-7597
                                       USA Sales Website: www.lgusa.com
                                  Customer Service Website: us.lgservice.com
                                     B2B Service Website: biz.lgservice.com
                                    Training Website: www.LGUniversity.com
                                        Online Forum: www.LGRepair.com
                                                                                        TABLE OF CONTENTS
INTRODUCTION .................................. 5                        CABLECARD ...................................... 92
                                                                            DIGITAL CABLE READY (DCR) ................... 92
SAFETY INSTRUCTIONS .................... 6
                                                                            CEA-NCTA AGREEMENT ............................ 92
   OVERVIEW .................................................... 6
                                                                            TERMS ........................................................ 93
   POWER CAUTION ......................................... 6
                                                                            VENDORS ................................................... 93
   ELECTRICAL SAFETY NOTICE .................... 7
                                                                            DCR ARCHITECTURE ................................. 94
   ELECTRICAL SHOCK WARNING .................. 7
                                                                            HOST-CABLECARD INTERFACE ................ 94
MODEL SPECIFICATIONS .................. 9                                   IN-BAND/OOB SPECIFICATION .................. 96
   MODEL LIST ................................................. 9           CABLE MENU & MMI .................................. 97
   MODEL NUMBER FORMATS ...................... 10                           DIGITAL CERTIFICATES DATA .................. 100
   SERIAL NUMBER FORMATS ...................... 12                          EAS(EMERGENCY ALERT SYSTEM) ...... 100
                                                                            HOST DIAGNOSTICS ............................... 101
INSTALLATION ................................... 15                         ERROR REPORTING ................................ 101
   GROUNDING ............................................... 15             CABLE CARD TROUBLESHOOTING ......... 102
   PLACEMENT ............................................... 15             IN-HOME TROUBLESHOOTING ................ 107
   JACKPACK COVER ..................................... 15                  CABLECARD TROUBLESHOOTING .......... 110
   ANTI-TIP BRACKETS ................................. 15
   GENERAL MOUNTING ................................ 16                  BUILT-IN DIGITAL VIDEO RECORDER
OPERATION ....................................... 17                     (DVR) ................................................ 112
                                                                            OVERVIEW ................................................ 112
   LANGUAGE ................................................. 17
                                                                            TROUBLESHOOTING ................................ 112
   SETUP MENU ............................................. 17
   VIDEO MENU .............................................. 20          TV GUIDE ......................................... 118
   AUDIO MENU .............................................. 23             OVERVIEW ................................................    118
   TIME MENU ................................................ 25            OPERATION ..............................................     118
   OPTION MENU ............................................ 27              SYSTEM INFO ..........................................       119
   MOVIE RATING SYSTEM ............................ 30                      SYSTEM FLOWCHART .............................               121
   TELEVISION RATING SYSTEM .................. 30
CIRCUIT DESCRIPTIONS ................. 31
   PCB LAYOUT .............................................. 32
   DIGITAL PCB ............................................... 34
   TUNER PCB ................................................ 37
   POWER SUPPLY ......................................... 39
   PANEL DRIVE BOARDS ............................. 46
   PLASMA PANEL ......................................... 54
TROUBLESHOOTING ........................ 55
   SIGNAL CONTROL TROUBLESHOOTING .. 55
   Z-SUSTAIN TROUBLESHOOTING ............... 56
   TROUBLESHOOTHING THE COF ICS ........ 57
   WHITE BALANCE ADJUSTMENT ............... 58
   MEMORY CARD ERRORS .......................... 59
DISASSEMBLY ................................... 60
   PREPARATION ............................................ 60
   DISASSEMBLY OF THE DU-42PX12X ........ 60
   DISASSEMBLY OF THE 2DR MODELS ...... 67
SOFTWARE UPDATES ...................... 75
   UPDATES VIA MEMORY CARD .................. 75
   FIRMWARE UPDATES VIA SERIAL CABLE 78
   FIRMWARE UPDATES VIA MDS ................. 80
   USING LGIDS AND GPROBE ..................... 82
   CONTROL PCB SOFTWARE UPDATE ........ 86




  Plasma Training                                                    3                                                        Contents
-4-
                                                                                              SAFETY

SAFETY INSTRUCTIONS
OVERVIEW
 1.  Read these instructions and the instructions in owners and service manuals.
 2.  Keep these instructions.
 3.  Heed all warnings.
 4.  Follow all instructions.
 5.  Do not use this apparatus near water.
 6.  Clean only with dry cloth.
 7.  Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
 8.  Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
     (including amplifiers)that produce heat.
 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
     two blades with one wider than the other. A grounding type plug has two blades and a third
     grounding prong, The wide blade or the third prong are provided for your safety. If the provided
     plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
 10. Protect the power cord from being walked on or pinched particularly at plugs, convenience
     receptacles, and the point where they exit from the apparatus.
 11. Only use attachments/accessories specified by the manufacturer.
 12. Use only with the cart, stand, tripod, bracket, or table specified by the 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.
 13. Unplug this apparatus during lightning storms or when unused for long periods of time.
 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
     been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled
     or objects have fallen into the apparatus, the apparatus has exposed to rain or moisture, does
     not operate normally, or has been dropped.
 16. WARNING - To Reduce The Risk Of Fire Or Electric Shock, Do Not Expose This Appliance To Rain Or
     Moisture.
 17. Wet Location Marking : Apparatus shall not be exposed to dripping or splashing and no objects
     filled with liquids, such as vases, shall be placed on the apparatus.

POWER CAUTION
Most appliances recommend they be placed upon 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, discontinue use of the appliance, and have the cord replaced with an exact replacement part by an
authorized servicer.



  Plasma Training                                   5                                          Safety
SAFETY
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.

ELECTRICAL SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified
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 , Shock, Fire, or other Hazards. Do not modify the
original design without permission of manufacturer.

ELECTRICAL SHOCK WARNING
An lsolation 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 its components from being damaged by
accidental shorts of the circuit that may be inadvertently introduced during the service operation. If any fuse (or
Fusible Resistor) in this monitor is blown, replace it with the same specified type. 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 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 positioin, 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 1M ohm and
    5.2M ohm. 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
    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 corresponds to 0.5mA. In case
    any measurement is out of the limits sepcified, 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




                                                          Volt Meter




                                                           0.15uF

                                    Exposed                                        Good Earth
                                   Metallic Parts                                   Ground
                                                         1.5Kohm/10W




  Plasma Training                                            6                                                Overview
-7-
 MODEL SPECIFICATIONS
MODEL SPECIFICATIONS
This section covers some of the past and present LG and Zenith Plasma Display Panel (PDP) TVs and
monitors. All models support computer input and RS-232, but not all models support High Definition
(HD) input. Most PDPs feature similar features and specifications. Some of the newer (2005+) models
have built-in ATSC tuners and support CableCARDTM. Note that Commerical models don't have CableCARDTM
support since it is not needed in a distribution network.
        KEY TERMS
        SDTV - Standard Definition (480i).
        EDTV - Enhanced Definition (480p).
        HDTV - High Definition (720p, 1080i).
        XD EngineTM - Six distinct processes contribute to picture improvement.
        CableCARD - Decoder card for digital cable.
        HDMI - High Definition Multimedia Interface. Alternative to DVI. Smaller connector and
               supports audio.
        HDCP - High-bandwidth Digital Content Protection.

MODEL LIST
Below is a list of all PDP models. This manual focuses on the newer 2005/2006 models, but the
others are listed for reference.

         40" EDTV     42" HDTV                                 42" EDTV
       DPDP40      42PC1DA     DU-42PZ60              MU-42PZ15VB P42W22H         RU-42PX10
       DPDP40V     MU-42PM12X DU-42PZ70               MU-42PZ41     P42W24B       RU-42PX11
       MU-40PA10C  DU-42PX12XC MU-42PX11              MU-42PZ41VB P42W24BX        RU-42PZ90
       MU-40PA10               MU-42PZ10              MU-42PZ90     P42W24P       MU-42PM11
       MU-40PA15               MU-42PZ10B             MU-42PZ90C    P42W34        42PX3DCV
       P40V22                  MU-42PZ11              MU-42PZ90H    P42W34H       42PC3D
       P40V24                  MU-42PZ11B             MZ-42PZ34     P42W34P       42PM3MV
       MU-42PZ11B              MU-42PZ15              P42W22        P42W46X       42PX4D
                               MU-42PZ15A             P42W22B       RU-42PX10C    42PX5D
                     50" HDTV                                        60" HDTV
       DU-50PZ60   P50W26B     50PX2C                 D60DVMS       MU-60PZ12A    P60W38
       DU-50PZ60H  50PB2DR     50PX2D                 D60DVSA       MU-60PZ12B    P60W38H
       MU-50PZ41   50PC3D      DU-50PX10C             DPDP60        MU-60PZ12VB   60PY2DR
       MU-50PZ41B 50PC1DRA     MU-50PM10              MU-60PZ11     P60W26        60PB2DR
       MU-50PZ41V 50PC1DR      50PY2DR                MU-60PZ11B    P60W26A       MU-60PZ95V
       MU-50PZ41VB 50PY2DR     50PX4DR                MU-60PZ12     P60W26H       MU-60PZ10B
       P50W26      50PM1M      50PX1D                 MU-60PZ15     P60W26P       60PX4DR




   Plasma Training                                    8                                  Specifications
                                                       MODEL SPECIFICATIONS
MODEL NUMBER FORMATS
OLDER ZENITH PRODUCTS (20002-2004)


    Old Zenith Structure:     L15V26

Display Type     Screen Size         Aspect Ratio      Model Year     Feature Level
L = LCD                              V= 4:3            2 = 2002       2 = Consumer
P = Plasma                           W = 16:9          3 = 2003       4 = Commercial
R = CRT                                                4 = 2004       6 = Consumer
      Rear Projo
D = Micro
       Display




OLDER LG PRODUCTS

Old LG Structure:    MU



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