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LG 50PC1DR Support Question

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Question posted by cheralhookera on July 19th, 2012

Lg Plasma Tv 50pc1dr-ua W0nt Come On

wheni hit th power button a white light blinks 2 times then gose back to red ?whats going on ?y is this happing and how do i fix it

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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

... Regulations Troubleshooting 1. Check details of short circuit when measuring voltage. 7. Plasma Display Panel Troubleshooting - 2007 3 Circuit drive has c-mos circuits which should not touch the drive circuits for the product. 3. Be cautious of Panel and boards. 2. Approximately 10 minute pre-run time is required for at least one minute because of electric...

Owners Manual - Page 4

... the Presentation will vary from Panel to the sticker located in the upper right side of the Power Supply circuit and will be able to locate voltage and test points needed for the Single Scan Plasma. Upon completion of the section the technician will have a better understanding of the operation of the...

Owners Manual - Page 5

...circuits under test. Look for correct Amplitude and Timing of the signals also check for the proper Duty Cycle of power supplies will change with the Oscilloscope to make sure... symptom carefully and determine what circuits could be the DC Supply voltages to the Customer. Plasma Display Panel Troubleshooting - 2007 5 Frequency of the signals. If the supplies are noise ...

Owners Manual - Page 6

... through P800 Pin 6 and used to the Digital Board. Plasma Display Panel Troubleshooting - 2007 6 SMPS Operating Modes Troubleshooting • Deep Sleep Mode - Guide Plus has been programmed or a Cable Card is installed and unit is powered off for TVGOS Data. • Standby Operation - Power Sequence • AC Cord Plugged in full operation. Guide...

Owners Manual - Page 7

.... Plasma Display Panel Troubleshooting - 2007 7 Standby voltage applied to the Analog, and Digital Boards to chassis ground. Measured at connector P803 at P800 pin 5 present after power up...volts at VR901 • 5v.DC Used to the Digital Board. • VS- Switch Mode Power Supply (SMPS) Voltages Troubleshooting • VS 196v used for the signal processing circuits present in standby...

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

Power Supply Low Voltage Connectors Troubleshooting P800 PIN1 P803 PIN 1 P802 PIN 1 P800 1) AC-D 2) RL-ON 3) S-5V 4) GND 5) VS-ON 6) 5V-D 7) M5V-ON 8) S-5V 9) GND 10) ... 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

...5V IC 28 U701 24 20 19 D502 R745 R747 Q702 Q701 D703 D704 Low Voltage Standby Power Supply T501 HS1 D101 D102 AC Relay RL101 AC Relay RL102 120VAC D506 D501 TH01 TH02 ...-M Q281 5V HS6 U261 Q223 D221 3.3v AC Input F101 AC INPUT Circuit Plasma Display Panel Troubleshooting - 2007 10 Power Supply Voltage Distribution HS2 Q607 Q801 PC901 HS3 U801 HS4 T801 R606 R607 Q606 Q601...

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 Y SUS Developed VSC 115v. -VY -196v. IPM 18v. VS 196v. 5v. Troubleshooting Y SUSTAIN BOARD Troubleshooting...

Owners Manual - Page 12

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

Owners Manual - Page 23

Energy Recovery Function (for saving power) - SUS IPM. 2. ER IPM. SUS IPM (IC202) 2. IPM (Intelligent Power Module) Troubleshooting SUS_UP ER_UP ER_DN SUS_DN SUS_DN There are two IPMs used in 50PC1DR on the Y Sustain Board. 1. Generate Sustain Waveform (square wave) - Plasma Display Panel Troubleshooting - 2007 23 ER IPM (IC201) Role of IPMs 1.

Owners Manual - Page 31

Y DRIVE Boards Troubleshooting Y-Drive Board works as a path supplying Sustain waveform and Reset waveform which is made in Y SUSTAIN B/D to the Panel through SCAN DRIVER IC Supplies a waveform which selects horizontal electrode sequentially. * 50PC1DR uses 12 DRIVER ICs (TOP, BOTTOM: 6 each) HVO VH GND Plasma Display Panel Troubleshooting - 2007 31

Owners Manual - Page 41

Plasma Display Panel Troubleshooting - 2007 41 ER IPM. Z SUS IPM (Intelligent Power Module) 95 V Z Vs 95V Vs SUS_UP Troubleshooting SUS_DN ER_UP ER_DN SUS_DN There are Two IPM ( Intelligent Power Module) on the Z sustain board of the 50PC1DR. One is SUS IPM (IC7) , another is ER IPM (IC5) Role of IPM 1.Generate sustain and erase waveform...

Owners Manual - Page 45

...creating ON/OFF order of all FET on DRIVER B/D by receiving 8 bit R, G, B input. ◆. Power : 3.3V/5V Temperature diode Voltage Regulator Flash ROM Voltage Regulator Temperature display diode can be checked. CONTROL Board ...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

Owners Manual - Page 77

Plasma Display Panel Troubleshooting - 2007 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.

Owners Manual - Page 78

... 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 designed for PC use (P/N:6744B00040A) with a low-noise HDD designed for A/V use (P/N:6744B91953A...

Owners Manual - Page 85

... 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 one Digital Channel at a time however you can record one Analog...

Owners Manual - Page 86

... Xstudio or EXIT button to the DVR • Home Menu Consists of : - Schedule - TV Menu • Home Menu Consists of : - TV Guide - X Studio is on PY series Plasma Music List - Recorded TV - Reservation - X Studio is the Customer Interface to remove the OSD. TV Setup • When you select TV menu or TV Setup the traditional TV Menu is on...

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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