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LCD PLASMA TV 42PC1D tripping

LCD PLASMA TV 42PC1D still tripping after replaced the Y sustain circuit board

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  • Michaelhorne Sep 14, 2008

    tech has looked at and cannot get to work, could it be the power supply to the tv ?

  • Michaelhorne Sep 14, 2008

    no power light doesn't light on the set

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6 Answers

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Hi,
I would suggest not to waste money to repair it and buy new LCD TV as plasma tv has no after sale service and parts.

Posted on Sep 15, 2008

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I would use the warenty to get a new one

Posted on Sep 14, 2008

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Dear sir/madam,

sn't this unit still under warranty? If so, I urge you to get it covered under the warranty program. You can find the warranty coverage in the owners manual.

If it is not under warranty try a hard reset just to make sure it is not a software corruption, but I doubt it and it will probably need servicing by a qualified tech.

HARD RESET: Merely unplug the power cord for 1 hour and reboot.

Also, look at the troubleshooting page in the manual.

AND: Try going into the service mode to see if there are error messages that come up telling you more about the trouble it has experienced. You can find out how to get into the service mode at this website.

http://www.fixyourowntv.com/servicemenu.php


thanks
good luck

Posted on Sep 14, 2008

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Hi hi you replace fuses and the flyback transformer 
Does the power light ever light on this set?

Posted on Sep 14, 2008

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You need a tech to make final adjustments. Some experience is needed. Better take it to a local authorized service.

Posted on Sep 14, 2008

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Click link

http://www.avsforum.com/avs-vb/archive/index.php/t-635482.htmlI can use the LCD Tv with this problem. ..... The repair shop said they replaced the y- and z- sustain circuit boards and tried to ... http://www.avsforum.com/avs-vb/archive/index.php/t-635482.html

Posted on Sep 14, 2008

  • mohammed marika thambi
    mohammed marika thambi Sep 14, 2008


    A feature-laden plasma HDTV with next generation connectivity
    Screen Size: 42
    HD Ready
    HDMI
    Digital Tuner
    Brightness: 1000 cd/m2
    Contrast Ratio: 10000:1
    Resolution: 1024 x 768
    Aspect Ratio: 16:9
    Inputs: HDMI x2 AV In RF In S-Video In Scart Jacks x3 Component In RGB In PC Audio In RS 232C.
    Size: 1129 x 695 x 103.7 (WxHxD mm)
    Weight: 24.4/27.7 kg
    Special features: tbc
    Warranty: 1 year RTB
    Gael

  • mohammed marika thambi
    mohammed marika thambi Sep 14, 2008

    CTRL Board. Distribute 5V,Va. Y sustain board Block Diagram ..... LCD
    TV: 42LP1DR-NA. Time of Application : All items with Lot No. which was
    manufactured ...
    http://www.rc5.ru/upload/lg_tv_PDPTraini...

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1 Answer

Vizio LC470DUG powers on for 4 seconds than goes off--possible mother board


No such thing as a mother board in a TV set. Here is a list of the PCBs
Types of TV Boards Every TV uses a collection of various boards to perform every function imaginable in a television. The boards work together to produce sound and images on a television screen. When certain mechanisms in a TV fail, it may be time to start testing different boards to see if they are functioning properly.

Main Board

The main board, or motherboard, is the central hub of a television circuit system. The easiest way to identify a main board is to find the board with the various video and audio inputs/outputs. Generally speaking, main boards also contain a tuner, HDMI, USB, and S-video port. Main boards are one of the largest boards in a television. This part is also sometimes called the main module or the A/V (audiovisual) board.

Power Supply Board

Another large and important board inside a television is the power supply board. Usually found in the center of the TV, the power supply board has several connectors that supply power to the other circuit boards. It can contain transformers, large capacitors, and integrated circuits. There is usually a table on the power supply board indicating the different voltages it produces in addition to the signal names.

Inverter Board

Found on LCD TVs, inverter boards are used to mount the LCD backlight. These are smaller boards, usually shaped like long, thin rods. If an LCD TV's screen is dark, distorted, or difficult to see, it can be the result of a defective inverter board. Inverter boards fail when inadequate power is not allowing current to pass through the backlight bulb.

Timing Control Board / Logic Board

The timing control board, known as the T-CON board, is typically only found on LCD and LED TVs. Plasma TVs, on the other hand, use a logic board. The functions of the logic and T-CON board are similar: each functions to digitize the information it receives from the TV's processor. This allows the screen to display images on the pixel level. When the T-CON or logic board fails, the screen images may become distorted, leading to pixilation and the appearance of lines on a television. On a logic board, there are slotted connectors on all four sides, while T-CON boards have connectors on just two sides.

X-Sustain and Y-Sustain Boards

Also known as the X-SUS and the Y-SUS, the x-sustain and Y-sustain boards only appear in plasma screen TVs. The X-sustain board may also be called the Z-SUS. These boards function similarly, producing proper screen images. Although they serve pretty much the same function, the two boards work independently of each other. The X-sustain board activates all the display lines at once, while the Y-sustain board addresses all the individual lines of display. When one board breaks down, it probably does not affect the functionality of the other. However, it may be a good idea to have both replaced because X-SUS and Y-SUS boards have a relatively short lifespan anyway. A failure of one could mean an impending failure of the other.

Buffer Boards

Buffer boards are also only found in plasma screen TVs. Connected to the Y-sustain board, a buffer board works to turn output to the plasma display. Common defects of buffer boards include the burning and shorting of power lines.

Dec 03, 2016 | Vizio Televison & Video

1 Answer

How do I fix a LG plasma tv that has sound and no picture.


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

May 15, 2016 | LG 50PT350 50 in. Plasma TV

1 Answer

Tv repair.for plasma tv


No screen boards found. Do you mean any of these?
Types of TV Boards Every TV uses a collection of various boards to perform every function imaginable in a television. The boards work together to produce sound and images on a television screen. When certain mechanisms in a TV fail, it might be time to start testing different boards to see if they are functioning properly.

Main Board

The main board is the central hub of a television circuit system. The easiest way to identify a main board is to find the board with the various video and audio inputs/outputs. Generally speaking, main boards also contain a tuner, HDMI, USB, and S-video port. Main boards are one of the largest boards in a television. Main boards might also be referred to as a motherboard, main module, or an A/V board.

Power Supply Board

Another large and important board inside a television is the power supply board.. Usually found in the center of the TV, the power supply board has several connectors that supply power to the other circuit boards. It can contain transformers, large capacitors, and integrated circuits. There is usually a table on the power supply board indicating the different voltages it produces in addition to the signal names.

Inverter Board

Found on LCD TVs, inverter boards are used to mount the LCD backlight. These are smaller boards, usually shaped like long thin rods. If an LCD TV's screen is dark, distorted, or difficult to see, it can be the result of a defective inverter board. Inverter boards fail when inadequate power is not allowing current to pass through the backlight bulb.

Timing Control Board / Logic Board

The timing control board, known as the T - CON board,, is typically only found on LCD and LED TVs. Plasma TVS, on the other hand, use a logic board.. The functions of the logic and T-CON board are similar, as each functions to digitize the information it receives from the TV's processor. This allows the screen to display images on the pixel level. When the T-CON or logic board fails, the screen images may become distorted, leading to pixelation and the appearance of lines on a television. On a logic board, there are slotted connectors on all four sides, while T-CON boards have connectors on just two sides.

X-Sustain and Y-Sustain Boards

Also known as the X-SUS and the Y-SUS, the x-sustain and y-sustain boards only appear in plasma screen TVs. The x - sustain board might also be called the Z-SUS. These boards function similarly, producing proper screen images. Although they serve pretty much the same function, the two boards work independently of each other. The x-sustain board activates all the display lines at once, while the y - sustain boardaddresses all the individual lines of display. When one board breaks down, it probably will not affect the functionality of the other. However, it might be a good idea to have both replaced because X-SUS and Y-SUS boards have a relatively short life span anyway. A failure of one could mean an impending failure of the other.

Buffer Boards

B uffer boards are also only found in plasma screen TVs. Connected to the y-sustain board, a buffer board works to turn output to the plasma display. Common defects of buffer boards include the burning and shorting of power lines.
TV Boards Buying Guide

Nov 28, 2015 | Hitachi P50H401 50 in. Plasma HDTV

1 Answer

Proscan tv - no picture but sound is there


is this lcd or plasma. if lcd then inverter board is bad, if plasma then y sustain is bad. check z board too. but on most cases its y sustain

Dec 31, 2013 | Televison & Video

1 Answer

42pc1d turns off .pop from speakers


Disconnect the Y-Sustain board (that's the one on the LEFT looking from the back) from power and try to see if the TV remains on.

If nothing changes disconnect the ZSUS board from the power and try again.

This should tell you if a board is causing the issue and it most likely is.

For service or other questions use
www.coppelltvrepair.com/newservice
and
www.coppelltvrepair.com/diagnose

Sep 30, 2012 | LG 42PC1D 42 in. Plasma Television

1 Answer

Hitachi 42pd6800 black screen when turned on, got sound no picture


Is this a plasma or an LCD TV? If it's an LCD TV then I would check the backlight inverters. If it's a Plasma TV then The Sustain boards there are two sustain board.


You can get parts for this TV at www.interliquidparts.com

Feb 29, 2012 | Hitachi Televison & Video

1 Answer

I have perfect sound but my screen is black any ideas what the problem is?


It can be bad sustain boards, it will require in-depth troubleshooting since you do not want to buy the wrong sustain boards or the power supply module.
Verify at least that the power supply and sustain baords do not have any bad caps with leaking/bulging tops first.

Dec 07, 2010 | LG 42PC1D 42 in. Plasma Television

1 Answer

Short circuit on the "Y" sustain board


The problem is heat!!! If the tv has fans they should be checked for normal operation,although on the early samsung models there were none, and the problem is that the panel drive buffers are getting to hot due to inadequate cooling. This is most apperent when tv is mounted to close to the wall, also external fan blowing on the rear left side will dissapate the heat. It is a problem on early Samsung and Electrograph 42 " plasma models. Hope this helps.

Jul 28, 2010 | Samsung Televison & Video

1 Answer

Tv dead,checked fuse plug OK


If the TV goes off completely, then is usually a faulty power board.

If the TV goes in standby, then it is in protection mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection / LDP : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Mar 27, 2009 | Televison & Video

1 Answer

Lg 42pc1d plasma tv red sparkles


I had the same problem, LG came out and it turned out to be the board that filters out the interference around the screen. I pretty sure that was it, took them 10 mins to fix by replacing a few of the boards inside the screen. Sorry I can't be more specific but its not an unfixable problem, so nothing to worry about.

Nov 11, 2007 | LG 42PC1D 42 in. Plasma Television

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