. IBN68-00711A-00esa cover 2004.4.30 2:bl Page PDP4294£V. CAUTION CAUTION: TO REDUCE THE RISK OF ELECTRICSHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLEPARTSINSIDE. REFERSERVICING TO QUALIFIED SERVICEPERSONNEL.

• Lg Owners Manual For Tv

This symbol indicates high voltage is present inside. It is dangerous to make any kind of contact with any inside part of this product.

ESA PDP4294LV1 Remanufactured 42-Inch Plasma Display, Aspect radio 16:9, Display Resolution 852 x 480, Viewing angle Over 160, Antenna/Cable Impedance VHF/UHF 75 Ohm.

This symbol alerts you that important literature concerning operation and maintenance has been included with this product. BN68-0071 IA-00esaE 1 (walldel) 2004.4.30 2:52 Page Thank you for choosing ESA! Your new ESA product represents the latest in television technology. Designed it with easy-to-use on-screen menus and closed captioning capabilities, making it one of the best products in its class.

We are proud to offer you a product that will provide convenient, depend- able service and enjoyment for years to come. Protect the power cord Power supply cords should be routed so that they won't be walked on or pinched by objects placed on or against them Pay particular attention to cords at plugs, convenience recepta- cles, and the point where they exit from the unit.

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Unplug the PDP from the wall outlet and disconnect the antenna or cable system during a lightning storm or when left unattended and unused for long periods of time. Stock Number 004000-00345-4. The party responsible for product compliance: SAMSUNG ELECTRONICS CO., LTD America QA Lab of Samsung 3351 MicheJson Drive, Suite #290, Irvine, CA92612 This device complies with part 15 of the FCC Rules.Operation is subiect to the following two conditions. Wide screen format PDP Displays (16:9,the aspect ratio of the screen width to height) are primarily designed to view wide screen format full-motion video. The images displayed on them should primarily be in the wide screen 16:9 ratio format, or expanded to fill the screen if your model offers this feature, and constantly moving Displaying stationary graphics and images on screen, such as the dark side-bars on non-expanded standard format television video and programming, should be limited to no more than 5%.

BN68-00711A-00esaE l(walldel) 2004.4.30 2:52 Page (hsssd (entrd Geseu s£@mati@s Your New Plasma Display Panel.Fine Tuning Channels.Remote Control Buttons. LNA (Low Noise Amplifier).(@nnectisg a P( andO?eratien Connecting VHF and UHF Antennas.16 Connecting to a PC.Connecting Catole TV.

2004.4.30 IBN68-0071 iA-00esa E 1 (walldel) 2:52 PM Page. BN68-00711A-00esaEl(walldel) 2004.4.30 2:52 Page Your New Plasma Display Panel. Remote Control Buttons. Speakers (optional) RemeteCentral Signal Receiver Aim the remote control towards this spot on the PDR SOURCE button Power Jndkat0r Pressto display all of the available video sources Power Off: LED Red (ie., Video, S-Video, Component1, Component2, PC ). Power On (Timer On): LEDGreen MENU button Power On (Timer Off): LEDOff Displays the main on-screen menu. @ Service j ack @ Cempenent VideeiAudie input jacks (YiPb/P,/Audie LiAudie R) For service only. Connect to the audio and component output @ DVm mnput jacks jacks of a DVD player or Set-Top Box.

Receives the digital video!audio signals from a @ External S peuker O utjacks set top box or PC. Q Mute button Press to mute the PDPsound.

0 PiP butten Activates picture in picture. @ Aspectbutton Press to change the screen size. @ RModebution Adjust the PDP picture by selecting one of the preset factory settings or select your personaJ, customized picture settings. @ Sleep butten Press to select a reset time interval for automatic shutoff i@ CH°Scan button Press to memorize (scan) the available channels. @ CaptionButton Controls the caption decoder. @ PiP€@ntrd Buttons Source: Pressto select one of the available signal sources for the HP window.

2004.4.30 2:55 IBN68-0071 iA-00esa E 2 (walldel) Page. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page Connecting VHF and UHF Antennas.Connecting Cable TV.Connecting Speakers.Connecting a VCR. Connecting a Camcorder.

Connecting a DVD Player. Connecting a DTV Receiver. If your antenna looks like this: it has 75-ohm round leads. Hug the antenna lead into the VHF/UHF terminal on the PDR Ue te Ant'rma Cabe, an acces o/y c uded n the poduct packa te. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page You can connect different cable systems to your PDP, including cable without a cable box, and cable with a cane box that descrambJes some or aJJchannds. Hug the incoming cable into the VHF/UHF terminal on the PD£ Use the Anterlna Ca:e, on access /y ncuded n the p/oduct packo e, Find the cable connected to the ANTENNA OUT terminal on your cable box.

To complete this connection you will need a 'oway splitter, a RF (A/B switch, and four coaxiai cables (which you can buy from your ESA dealer or any electronics store). Find and disconnect the cable that is con- nected to the ANTENNA IN terminal of your cable box. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page External speakers are sold seperateJy. Check with your dealer. PoweredSubwoofer (Optionl External speakers MUST have a power handling capability of 10 watts minimum (impedance 8 ohml. Connect the speaker audio cable to the external speaker output jack on the PDP matching the '+'.

L Ciii ¸¸: Power Plug Audio Cable S-Video CaMe Video Cable Connect the Video/Audio cables between the AUDIO(LiR)iVIDEO jacks on the PDP and AUDIO!VIDEO OUT jacks on the VCR. (Note: For better video, you can usean S-Videocable.) VideotapePJayback: 1 Turn on your PDP,and press the SOURCE button on the remote control. BN68-0071 IA-00esaE 2 (walldel) 2004.4.30 2:55 Page.Power Plug Video Cable Audio Cable Connect a Video!Audio cable between the AUDIO(L/R)/VIDEQ jacks on the PDPand the VIDEO!AUDIO OUTPUT jacks on the camcorder. Viewing Tupes 1 Turn on your PDP,and press the SOURCE button on the remote control. Move the joystick up or down to select the 'Video', then press the joystick to enter. This PDPdisplays the optimum picture in 720p mode.

DVD PJayer Power Plug Video Cable Audio Cable 1 Connect a Video Cable between the Y, Pb, Pr (COMPONENT1,2) input jacks on the PDP and Y!PB!PRoutput jacks on the DVD players. Connect a Audio Cable between the AUDIO L/R(CQMPONENT1,2) input jacks on the PDP and the AUDIO OUT jacks on the DVD player. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page This PDP displays the optimum picture in 720p mode. DTV Receiver Power Plug Audio Cable DVUCable Use the DVIDconnection cable. (sold separately) 1 Connect the cable or antenna to the antenna input jack on the DTV. 2 Connect a Video cable between the Y, Pb, Pr (COMPONENT 1,2) or DVI jack on the PDP and the Y, PB,PR(VIDEO OUTPUT JACKS) on the DTV receiver.

2004.4.30 2:55 IBN68-0071 iA-00esa E 2 (walldel) Page. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page Turning the PDP On and Off.Memorizing the Channels.

Setting Up Your Remote Control. Press the Power button on the remote controk The PDPwiJJbe turned on and you wiJJbe ready to use it's features You can also use the Power button on the front of the Notes: ' If your' PDP isn't turned on when the power button is pressed: Press the MODE button to check if the TV mode has been chosen ( Your PDPhas a simple, easy-to-use menu system that appears on the PDPscreen. DispJeyiegStatusJeermetiee Press the Display button on the remote control. The PDP will display the Picture mode, Sound mode, MTS, Signal and Caption. Sound Custom: Mono Signal: Mono Caption: Off. BNb-00 /llA-00esa Z (wa±±de±) 2004.4.30 Z:bb Page Your PDP can memorize and store all of the available channels for both 'off-air' (antenna and cable channels. After the available channels are memorized, use the CH /', and CH v buttons to scan through the channels.

This eliminates the need to change channels by entering the channel digits. First, select the correct signal source (Ant, STD, HRC, IRC.

See steps on previous page. StiJJ Press the Still huron on rne emote control ro Freeze a moving olcrure. Press again to cancel.

PMode S.Mode DdbyVirtua /;So. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page Customizing the Sound.Using Automatic Sound Settings. Choosing a Multi-Channe! Sound (MTS)Soundtrack.Using the Auto Volume.Using Dolby Virtual.Using a Subwaofer. Press the Menu button.

Move the joystick up or down to select 'Sound', then press the joystick Mode Custom to enter. Adjust Mono Auto Volume ' Dolby Vfftual ' Woofer # Move Select Menu Move the joystick up or down to select 'Adjust', then press the joystick to enter. Press the Menu button. Move the joystick up or down to seJect 'Sound', then press the joystick Mode Custom to enter. Mona Auto Valume Woofer Move the joystick Jeftor right to seJect 'Custom', 'Standard', 'Music', 'Movie' or 'Speech' sound Mode Music setting.

Depending on the particular program being broadcast, you can listen to stereo, mono, or a Separate Audio Program. (SAP audio is usually a foreign-language translation. Sometimes SAP has unrelated information like news or weather.) Press the Menu button. Move the joystick up or down to select 'Sound', then press the joystick to enter.

BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page Each broadcasting station has its own signal conditions, which can make it necessary to adjust the volume every time the channel is changed. 'Auto volume' Jetsyou automatically adjust the volume of the desired channel by lowering the sound output when the modula- tion signal is high or by raising the sound output when the modulation signal is low. This feature alJows the PDP's optional L/R speakers to provide a Home Theater-Jike DoJby effect. The center and surround sounds are mixed into the L/R speakers. Press the Menu button. Move the ioystick up or down to select 'Sound', then Fess the ioystick to enter. BN68-00711A-00esaE2(walldel) 2004.4.30 2:55 Page Press the Menu button.

Move the joystick up or down to select 'Sound', then press the joystick Mode Custom to enter. Adjust Mono Auto Volume #lw Vid0al off Woofer Move the joystick up or down to select 'Woofer', then press the joystick to enter.

BN68-00711A-00esaE3(walldel) 2004.4.30 3:7 PM Page. BN68-00711A-00esaE3(walldel) 2004.4.30 3:7 PM Page i!!iiili ¸¸ ¸¸¸¸¸¸ iill;i;!!i Fine Tuning Channels.LNA (Low Noise Amplifier). BNb-00/IIA-00esa 3(walldel) 2004.4.30 3: / PM Page Use fine tuning to manuaJJy adjust a particuJar channeJ for optimaJ reception. Press the Menu button.

Move the joystick up or down to seJect 'ChanneJ', then press the joystick to enter. Move Select Menu Move the joystick up or down to seiect 'Fine Tune'. BN68-00711A-00esaE3(walldel) 2004.4.30 Page if the TV is operating in a weak-signal area, sometimes the LNA function can improve the reception (a low-noise preamplifier boosts the incoming signal). Press the Menu button. Move the joystick up or down to select 'Channel', then press the joystick to enter. BN68-00711A-00esaE3(walldel) 2004.4.30 3:7 PM Page. BN68-00711A-00esaE3(walldel) 2004.4.30 3:7 PM Page L A Y Connecting to a PC.Adiusting the PC Screen.Changing the Position of the image.Changing the Size of the Image.

Picture Quality Adjustment. Connection to a Macintosh PC may require an adaptor that fits the PC terminal. iiii ®iii iii Power Plug Use the DVI-D connection cable (sold separately DVI CaMe PC CaNe Audio Cable DVIiack (Theactualconfig- urationon your PC may be different, dependingon the rnodek) 1 Connect a PC (15pin cable between the Video Output jack (or DVI jack on the PC and the. DoSubCable DVFD CaBle (Digital-Only Cennecter) o 15Pin Signal Cable (based on protruded pin PC!UT PinNo PC IN Pin No Signal Assignment Pin No Signal Assignment T,M,D,S, Data2= T.M.D,S, Data3+ Red (R) Red (R) T.M.D.S. Data2+ +SV Power Green(O) Green (G) T.M.D.S.

to up Your The Windows display-settings for a b,picai computer are shown below. However, the actual screens on your PC will probably be different, depending upon your particular version of Windows and your particular video car& But even if your actual screens look different, the same, basic set-up information wiJJapply in almost oil cases. Notes Both screen position and size will vary, depending on the type of PC monitor and its resolution. The table below shows aJJof the display modes that are supported: Vertical Horizontal Vertical Horizontal Video signal Dot X Line Frequency(Hz Frequency(KHz polarity polarity 640 X 350. Pese): Press the Source button, then move the ioystick up or down to select PC. Press the ioysfick to select PC mode Press the Menu button, then press the joystick to enter.

Custom Adjus Cobr Tone Custom Color Adius Move the joystick up or down to select 'Color Tone', then move the joystick left or right to select Mode Custom. BN68-00711A-00esaE3(walldel) 2004.4.30 Page Peset: ® Press t he Sourcebuffon, thenmove theioysfick up ordown toselect PC Press t heioystick toselect PC mode Press the Menu button.

Move the joystick up or down to select 'PC', then press the joystick to enter. Adjust Wide Scaling. P£eset:. Pressthe Source button, then move the ioystick up or down to select PC.

Pressthe ioystick to select PC mode Press the Menu button. Move the joystick up or down to select 'PC', then press the joystick to enter. Move the joystick up or down to select 'Scaling'. Peset Pressthe Source button, then move the ioystick up or down to selectPC. Pressthe ioystick to selectPC mode. Press the Menu button.

Move the joystick up or down to select 'PC', then press the joystick to enter. Adjus Scaling Wide '.

BNb-00/llA-00esaE&(wa±±de±) 2004.4.30 &:/ Page Preset' Press the Source button, then move the ioystick up or down to select PC. Press the ioysfick to select PC mode Press the Menu button. Move the joystick up or down to seiect 'PC', then press the joystick to enter. Move the joystick up or down to select 'Auto Adjust', then move the joystick left or right to enter. Pese: Press the Source button, then move the ioystick up or down to select PC.

Press the ioystick to select PC mode Press the Menu button, move the joystick up or down to seiect 'PC', then press the joystick to enter. Adjust Scaling Wide. Pese: joystick joystick Press the Source button, then move the up or down to select PC Press the to select PC mode k ¸¸ Press the Menu button. Move the joystick up or down to select 'PC', then press the joystick to enter.

Adjust Scaling Wide. 2004.4.30 3:8 PM BN68-00711A-00esaE4(walldel) Page iiii!!!i!i!!!i!iiiii!i!ii!ii!!i!iiieii!ii!ii!iii! Ii ¸¸'¸¸ iii!i!!i i!!il!i!i!i!!i!!i i!iiiiii!ilil ¸¸¸¸ i!k ii!i i l¸¸ Setting the Clock. Setting the Sleep Timer. Setting the Timers.Setting the Preferred Channel and Volume Level.

BNb-00/IIA-00esa 4(wa±±de±) 2004.4.50 Page Press the Menu button. Move the joystick up or down to select 'Function', then press the joystick English to enter. Time Caption Auto Power Off V-Chip Film Mode Move Sebct; Menu Move the joystick up or down to select 'Time', then press the joystick to enter. BN68-0071 IA-00esaE 4 (walldel) 2004.4.30 Page You can set your PDP to automatically turn off after a preset interval. Press the Menu button. Move the joystick up or down to select 'Fund'on', then press the joystick English to enter. Time Caption Auto Power Off VOhip.

using the timers, you must set the PDP's clock, as described previously. Setting the On/Oil 11met i::ii Press the Menu button. Move the joystick up or down to select 'Function', then press the joystick English it?? Caption Auto Power Off '.

Move the joystick Ieft or right to select 'Off' or 'On', then move the joystick up down to select Clock 10:30 'Off' or 'On'. 7:30m On Off Time Sleep On Time Volume On time Channel ii!iiiiiiii!!iii;Adjust Move ; Menu to select the 'Off Time'. BN68-00711A-00esaE4(walldel) 2004.4.30 Page 76 The oreferred channel ana vowme can De set foi wnen me timer automatical y turns on me TV. Aown to select 'Function Press tr/e Menu button. Move men oress tr/e ioysrtcK up or oystick English to enter. Time Caution. BN68-00711A-00esaE4(walldel) 2004.4.30 3:8 PM Page Selecting a Menu Language.

Viewing Closed Captions.Digital Noise Reduction.Setting Auto Power Off.Using the V-Chip.Selecting the Film Mode. Press the Menu button. Move the joystick up or down to select 'Function', then press the joystick English to enter. Tm Caption Auto Power Off V Chip Film Mode Move Select Menu Move the joystick Ieft or right to select the appropri- iiii iI ate language: English, Francais or EspaBoL Press me Menu button. Move me oysNcK up or aown to se.ec.tt ' Function' men oress me i v ti L-o.sc. English to enter. Time Caution.

Aulo Power. V-Chb Film Mode.

Move Select MenL Move me joystick up or aown to select Film Mode'. BN68-00711A-00esaE4(walldel) 2004.4.30 3:8 PM Page!¸!ill iiiiiii!

;!i Troubleshooting.Care and Maintenance.Specifications. Before you call a service technician, please scan this list of problems and possible solutions. It may save you time and money. P0ssibJe Sduti0n Check all wire connecnons. Press the 'Mode' button to put your remote co troJ in the 'TV mode. BN68-00711A-00esaE 4(walldel) 2004.4.30 Page With proper care, your PDPwill give you many years of service.

Please follow these guidelines to get the maximum performance from your PD£ J4entiJyingPr0BJems ' Do not put the PDP near extremely hot, cold, humid or dusty places. ' Do not put the PDP near appliances that create magnetic fields.

Exterior design and product specifications are subject to change without prior notice to improve the performance of this product. PDP4294LV 1027 (W X 79 (DX 630.5 (HI mm; 40.43 (W) X 3.11 (DX 24.82(H)inches 54 (W) X 31.5 (D1X220 (H)mm; 2!3 (W X 124 (D)X 8.66 (Hinches 31 kg.

BN68-00711A-00esaE 4(walldel) 2004.4.30 Page. BN68-00711A-00esaE 4(walldel) 2004.4.30 Page. BN68o00711AoO0.

. SERVICE MANUAL Model: PDP4294LV1 Safety Precaution Technical Specifications Block Diagram Circuit Diagram Basic Operations & Circuit Description Main IC Specifications Product Specification of PDP Module Trouble Shooting Manual of PDP Module Spare Part List Exploded View If you forget your V-Chip Password. Safety Precaution The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to CAUTION alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclo sure that may be of sufficient magnitude to RISK OF ELECTRIC SHOCK constitute a risk of electric shock to persons.

When replacing a MAIN PCB in the cabinet, PRODUCT SAFETY NOTICE always be certain that all protective are installed properly such as control knobs, Many electrical and mechanical parts in this adjustment covers or shields, barriers, isolation apparatus have special safety-related resistor networks etc. PDP4294LV1 MODEL: Technical Specifications 42” Plasma Display DATE FIRST ISSUED ISSUE RAISED BY CHECKED BY NUMBER OF PAGES REVISIONS ISSUED DATE DESCRIPTION RAISED BY: SPECIFICATION AGREED: SIGNATURE DATE R & D DEPARTMENT.COMMERCIAL DEPARTMENT. CONTINUATION PAGE Technical Specifications PDP4294LV1 NUMBER PAGES Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light 150ux (When measuring I, the ambient luminance ≦0.1Cd/m Viewing distance 50cm in front of PDP. CONTINUATION PAGE Technical Specifications PDP4294LV1 NUMBER PAGES ELECTRICAL CHARACTERISTICS Power Input Voltage 100 240VAC Input Current 3.5 / 1.5A Maximum Inrush Current. Z sustain B/D: make SUSTAIN PULSE and ERASE PULSE that generates SUSTAIN discharge in panel by receiving LOGIC signal from CONTROL B/D. This waveform is supplied to panel through FPC(Z).composed with IPM,FET,DIODE, electrolytic capacitor,E/R coil.

IPM (Intelligent Power Module). Y drive B/D 1) This is a path to supply SUSTAIN,RESET waveform which made from Y SUSTAIN B/D to panel through SCAN DRIVER IC. 2) Supply a wave form that select Horizontal electrode (Y SUSTAIN electrode) sequentially. Y sustain B/D: generates SUSTAIN,RESET waveform, Vsc(SCAN)voltage. And supplies it Y DRIVER B/D. Composed with IPM,DIODE, electrolytic capacitor,FET.

Control Board: creates signal processing (Contour noise,reduction ISM.) and an order of many FET on/off of each DRIVER B/D with R,G,B each 8bit input. Basic DC/DC con. DC/DC Converter part part: Being impressed 5V, Va,Vs, DC/DC converter makes 5V,Va,Vs,Vsetup,Vsc which is essential for each B/D. There is no DC/DC B/D in model 40 (1 POWER B/D). 50 embedded DC/DC B/D separately because of high power consumption. FPC (Flexible Printed Circuit): supply a driving waveform to PANEL by connecting a PAD electrode of PANEL with PCB(Y and Z).

there is two type of this for Y B/D. One is single-sided, another is double-side. These are having pattern on it. for Z B/D, there is no pattern, single-sided, and Beta type(all of copper surface). COF (Chip On Film): supply a waveform which made from X B/D to panel and select a output pin that is controlled by COF when be on or off. 96 output pin per IC.

The more the resolution higher, the less spare space where can set IC on it in B/D. IPM(Intelligent Power Module): composition HEATSINK,CAPACITOR DIODE IC LINEAR RESISTORTANSISTOR,FETS.: description Attached at Z B/D and Y B/D, make Sustain waveform. Sustainer: supply a square wave to panel to make a video. Trouble shooting. Fast check up what kind of defect?

Defect Check model No. Of module,all connectors and cables. Check panel appearance Check PSU output (Va,Vs,5v) Check Y, Z b/dinput voltage Replace Y, Z b/d Replace ctrl b/d vertical defect? Check panel appearance Check COF. Trouble shooting. Logical judgment what kind of defect? What kind of defect?

Please follow the no display trouble shooting. Bar defect appeared? Vertical defect? Please follow bar defect trouble shooting. Line defect Horizontal defect?

Please follow the line defect trouble shooting. Mis –discharge Please follow the mis discharge trouble shooting. Trouble shooting.

No display 1. Connector Confirm every Connector (PSU, Y-SUS, CTRL, Z-SUS) module may not be normal by mis-connection which can not send signal and power. Also Mis connection for a long time has a specific b/d failed.

Trouble shooting. Exhaust tip Crack Confirm exhausting Tip and find Crack with naked eyes to check vacuum state. If there is problem replace the module. In case of vacuum breakdown, module makes a shaking noise because of inside gas ventilation. (there may be a small crack which could not see with naked eyes.

Trouble shooting. PSU(Power Supply Unit) 1.

Check each unit part of PSU inside with naked eyes. (capacitor, FET, a kind of IC, resistor) 2. Check FUSE and SW1 (on Normal). Check Output voltage which is converted from AC V SW1 Normal to DC V. Trouble shooting. Confirm LED D17(flashing),13 lighting 2. If not CHECK OSC X1 output.

Input voltage 3. Check CTRL input voltage (CONNECTOR P300) 4.

CHECK 3.3V, 5V,15V. Check IC 11 3.3V IC 3 2.5V OSC(X1) Probe Touching.

Trouble shooting. Y-sus B/D Vscw 1. Check FUSE FS1(5v),FS2(Vs). Check voltages(Vsetup,-Vy, Vscw) Vsetup 3.

Check DIODE between GND and Y SUS output. Setdn SUSUP(OC2) SUSDN(OC1). Check whether output voltages agrees setup with voltage that represented in label. Trouble shooting. Check whether output voltages agrees with voltage that represented in label. Check diode value GND between Y-SUS output.

Normal diode value= 0.4 (forward) Normal diode value = OL (reverse). 4. Trouble shooting. Check the FUSE. Check input voltages.(Va, 5V,15V) 3. Check FPC out put diode value.

Check ramp waveform. Check input voltages Check the FUSE 5V FUSE Va FUSE 6.3A Vs FUSE 2A or 4A.

Trouble shooting. Variable resistance of Z RAMP waveform slope. Check FPC output diode value.

Caution: check certainly after removing FPC. Normal diode value=0.375(forward) Normal diode value=OVER LOAD(reverse).

4. Trouble shooting. Power protection It is power protection when power is off automatically within 23 min. From power on.

Power protection function protect the boards when occurred short on circuits of PDP module or power problem. If can not impress power even after replacing PSU, find out where the short occurred. PSU makers.

Trouble shooting. Vertical defect (bar) 1. Connector Check here Check COF connector. If not connected well,it will Make a bar defect. Check here 2. Checking COF Confirm whether COF was torn. And then check input of COF resistor and IC.

COF 6 is torn partly Tearing. Trouble shooting. Checking address COF input of resistor and IC COF resistor checking Check the both side of resistor With Digital multi meter(DMM). If the resistor is normal, the resistor value will be 10.2 10.8. Trouble shooting.

Checking address COF input of resistor and IC IC input checking Inside of IC, there is 4 ea diodes which separated in 2 series. (input 2, output 2).how to check 1.contact DMM - terminal to a right terminal of condenser(GND) and DMM + terminal to a right terminal of IC, normal value 0.66 (fig.1) 2.contact DMM - terminal to Output terminal of resistor, and DMM + terminal to a right terminal of IC, normal value 0.73 (fig.2). 4. Trouble shooting. Ctrl B/D CTRL B/D supplies video signal to COF. So if there is a bar defect on screen, It may be the ctrl b/d problem. A flow of address signal In this figure, we can easily suppose what will be appeared on screen when a specific part failed.

Trouble shooting. Vertical defect (line) 1 line open or short This phenomenon is due to COF IC inside short or adherence part of the Film and rear panel electrode problem.

In this case, replace the panel. 1 line open 1 electrode open Line open or short with same distance.

Trouble shooting. Line defect from each parts. Case 1: Buffer IC fail 16 line open COF IC 1,2 192 line(96+96) open. COF IC 3,4 64 line open (with fixed interval there is on,off.

Lg Owners Manual For Tv

Repetition). case 2: Array resistor fail COF IC1 16 line, COF IC2 16 line open. Trouble shooting. Horizontal (bar) Most horizontal defects can be repaired. In case of adherence part of the Film and rear panel electrode defect or panel electrode open,short, replace the panel. Connector It can make a horizontal bar that connector on Y b/d and Z b/d did not plugged well. Because sustain voltage can not be supplied to panel.

Trouble shooting. Scan IC check Check diode value of the right side part of output pin. Check here with DMM(either forward or reverse is ok) DMM + DMM. Trouble shooting.

Horizontal (line) 1. Check FPC In case of horizontal 1 or more line, it is due to FPC or panel inside. Ctrl b/d, Y b/d is just normal. FPC electrode open Panel electrode Insulation break down Horizontal 1 line. Trouble shooting.