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LG 50PC1DR Support Question

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Question posted by soniaevelez on March 24th, 2012

I Have An Lg 50pc1dra-ua Tv.

Got a vertical light that moves on the screen from right side to the left side. No other picture or sound when turned on.

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Related LG 50PC1DR Manual Pages

Owners Manual - Page 2

Troubleshooting Overview of Topics to be Discussed •Switch Mode Power Supply •Y SUS Board •Z SUS Board •X Drive Boards Plasma Display Panel Troubleshooting - 2007 2

Owners Manual - Page 3

...long 2-1 fail, address 1 line open, Y b/d trouble, Mal-discharge on screen. Checking Point before adjustment. 2. Plasma Display Panel Troubleshooting - 2007 3 Do not exceed Higher voltage than is required... in circuitry. Verify model names and board model matches. 3. Safety Rules PLASMA Overview Safety & Handling Regulations Troubleshooting 1. The PDP Module must be protected ...

Owners Manual - Page 4

V SET_UP -VY VSC Z_BIAS Plasma Display Panel Troubleshooting - 2007 4 Upon completion of the section the technician will have a better ...Voltages developed on the SMPS • Adjustments VA, VS, and 5V DC • Always refer to the sticker located in the upper right side of the Presentation will cover troubleshooting the Switch Mode Power Supply for the DC 5v, VA, VS, V SET UP, -VY,...

Owners Manual - Page 5

... checking the symptom and determining the circuits to make a final determination of an eminent failure. • Correct The final step is to correct the problem. Plasma Display Panel Troubleshooting - 2007 5 Troubleshooting Steps • Define Look at the symptom carefully and determine what circuits could be the DC Supply voltages to the...

Owners Manual - Page 6

...or a Cable Card is installed and unit is powered off for TVGOS Data. • Standby Operation - Plasma Display Panel Troubleshooting - 2007 6 Power Sequence • AC Cord Plugged in full operation. Standby 5v &#...the VA, VS, and 5v DC, set is sent from the Digital Board to the Power Board to turn on the VA, and VS Supplies • 5V-M Sent from the Digital Board through P800 Pin 6 and...

Owners Manual - Page 7

... at P802 pins 1 and 2 to chassis ground. • 3.3v. to turn on the Power Board from pins 1 and 2 of Deep Sleep Mode. •... Board used for the Audio Output Supply, present in standby. Plasma Display Panel Troubleshooting - 2007 7 Measured at P800 pin 5... Adjusted at VR951 • VA 60v used to drive the Vertical Grid Voltage, X Boards and in the IPM Circuits to develop ...

Owners Manual - Page 8

Power Supply VS Adjust VA Adjust VS VA Source VA 5v VS Source Control IC 3.3v Adjust 19v Audio Supply 12V,6V, 5V and 3.3V Source Standby Circuit P802 P803 P800 Plasma Display Panel Troubleshooting - 2007 8 Troubleshooting 380 Volt Supply AC Input Circuit

Owners Manual - Page 9

... 3) GND 4) GND 5) 6V 6) 6V 7) GND 8) GND 9) 12V 10) 12V 11) GND 12) GND P802 1) 19V 2) 19V 3) GND 4) GND 5) 6V 6) GND 7) 3.3V 8) GND 9) 12V 10) GND Plasma Display Panel Troubleshooting - 2007 9

Owners Manual - Page 10

... D951 VS D952 D953 D271 6V D261 Q252 D251 D202 VA 5V-M Q281 5V HS6 U261 Q223 D221 3.3v AC Input F101 AC INPUT Circuit Plasma Display Panel Troubleshooting - 2007 10

Owners Manual - Page 11

... the operation of the Presentation will be able to locate voltage and resistance test points needed for the Single Scan Plasma. ER IPM SUS IPM Ramp UP V SET DN V SET UP Plasma Display Panel Troubleshooting - 2007 11 Troubleshooting Y SUSTAIN BOARD Troubleshooting This Section of the circuit and will cover troubleshooting the Y SUS...

Owners Manual - Page 12

... in the order they are the same as the Voltage Label on the upper right side of the PDP. Check VSC Check -VY Plasma Display Panel Troubleshooting - 2007 12 Measured at the VSC test points. •... -VY -196v Used to most accurately set the Plasma Display Panel. Voltmeter Adjustments to Y SUS • VSC 115v Used to shape the Y Drive waveform...

Owners Manual - Page 45

...Regulator Flash ROM Voltage Regulator Temperature display diode can be checked. Left picture shows 7 periods which means normal temperature Green = OFF Yellow = ON Weight D15 - 8 D16 - 4 D17 - 2 D18 - 1 TEST Pattern AUTOGEN P1 Connector MCM (Micro Control Module) Plasma Display Panel Troubleshooting - 2007 LG Part Number Label 45 CONTROL Board Troubleshooting ◆. In charge of...

Owners Manual - Page 50

TCP (Tape Carrier Package) : supplies RGB 6bit signal to the PDP by connecting the PAD Electrode of the PANEL with the X Board. Troubleshooting X_B/D Frame Rear panel Front panel Connector TCP IC TCP Plasma Display Panel Troubleshooting - 2007 Front side 50 Behind side

Owners Manual - Page 52

Center X Board Connections on Connector P208 Troubleshooting FL209 VA (7,8,9) 1 Thru 6 Grnd 10 Thru 14 Grnd RGB Logic Signals 15 Thru 23 24 CLOCK RGB Logic Signals 31 Thru 34 36 FL208 VA (42,43,44) 25 THRU 30 Grnd 35 Grnd 37 Thru 41 Grnd 45 Thru 50 Grnd 1 50 Output to TCP IC Plasma Display Panel Troubleshooting - 2007 52

Owners Manual - Page 54

X LEFT B/D COF Separating X RIGHT B/D Lift up lock as shown in the Picture. Plasma Display Panel Troubleshooting - 2007 54 Remove TCP as shown in Picture Troubleshooting The X Board receives a Logic Signal from the Control Board and controls the Address Pulse (generates Address Discharge) by an ON/OFF operation, and supplies the waveform to TCP (data).

Owners Manual - Page 77

It is built into several models of LG televisions and provides about 15 hours of HDTV recording or 66 hours of SDTV recording without the need of any external accessories. LG uses Seagate Hard Drives The 160 Gigabyte Barracuda Hard Drive from Seagate is a 3.5 inch serial ATA (Advanced Technology Attachment) Hard Drive. Plasma Display Panel Troubleshooting - 2007 77

Owners Manual - Page 78

Plasma Display Panel Troubleshooting - 2007 78 The original HDD is shown on the right and the upgraded version is shown on the left. Recent Hard Drive Upgrade In addition the grommets for HDD mounting have been changed to P/N 5040V00101B *Rubber changed from hard material to soft material LG recently started replacing the HDD that was...

Owners Manual - Page 85

Plasma Display Panel Troubleshooting - 2007 85 Here's what we can do Watch Live TV Without buffering Watch Live TV with 1 hour buffering Watch Delayed Live TV (1 hour max) Play Recorded show Record one show and play a recorded show Record one show and watch another live ** ** You can only record or watch ...

Owners Manual - Page 86

... the HDD free space is the Customer Interface to remove the OSD. TV Menu • Home Menu Consists of : - Photo List - TV Setup • When you select TV menu or TV Setup the traditional TV Menu is on PY series Plasma Recorded TV - Manual Rec - IEEE 1394 - Recorded TV - TV Guide - Music List - X Studio is displayed at the top...

Owners Manual - Page 98

TROUBLE SHOOTING Eliminate the HDD • If you suspect the HDD is causing a video or audio problem you can simply unplug it • You MUST unplug the TV before disconnecting or reconnecting the HDD • During initial power up the TV will detect whether or not the HDD is there and will route the audio and video as needed Plasma Display Panel Troubleshooting - 2007 98

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