Question about LG Z42PJ240 42 in. Zenith Plasma TV

1 Answer

LG 42" Zenith Plasma TV Z42PJ240 failed capacitor help

I have an LG made Zentih Z42PJ240 plasma set that I purchased used as having no picture. I opened the set expecting to find bulging caps on the PS or Y sustain board - but there were none. Brought up the set, and it worked, excellent video, for a little over 30 minutes - then protection shut it down. Noted some warm caps on the PS board, but not hot like there was a major current draw issue. Used component cooler on heat sinks and caps.. eventually the set came on and has run for hours without a shutdown. I suspect a cap is beginning to fail - but I hate "hanging parts" outside of preventative work, yet I also can't see pulling caps and testing them one by one. Yet at the same time, I see LG used very low-grade caps throughout. I am keeping this set, so I have the time to flush out the problem. What would you do? Replace, or at least pull/test caps that were warm - or just replace questionable junk with good grade parts?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

  • Expert
  • 36 Answers

You maybe have problem with smd resistors on PSU around 380v capacitor they are ned to re- solder it is on the circiut where is made this voltage -380v in primary

Posted on Mar 09, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 13 Answers

SOURCE: 42 inch LG Plasma TV - Lost picture

This is almost certainly the device that sends electricity to the the plasma in the panel after failing. Bring to your local repair shop and expect to pay 300-400 parts and 100-200 labour.

Cheers,
Stephen

Posted on Apr 28, 2009

maatmartin7
  • 1208 Answers

SOURCE: I have a 42 LG Plasma TV with a broken screen

NO....You must pay attention to all numbers on the back of the TV. Verify these with your tech or contact your LG customer support for the correct board numbers. If the screen was broken I doubt if you can repair this for less than it cost to replace. The screen for this one runs at about $650.00. Good Luck and good advice!

Posted on Oct 01, 2009

  • 380 Answers

SOURCE: LG 42 Plasma try's to turn on but just goes back into "stanby" ?

Check to see if you get Va and Vs voltages from the power supply. There should be some wires running to the y-sus. A couple of those wires will be labeled va and vs. Are they present? There will be a sticker stuck to the panel somewhere telling you what they should be.

Posted on Mar 26, 2010

SOURCE: TV has no display -- Need advice on Z Sustain Assembly Board

Send your board for repair / exchange - we service those by truckload :-)

http://www.coppelltvrepair.com .

Posted on Apr 05, 2010

  • 8457 Answers

SOURCE: hello....I have a LG 42" plasma tv model #

Replaced the X sus board too.That the other board,that also have a problems.

Posted on Nov 26, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What might the problem be on a zenith tv


video control board remove back panel and look for bad capacitors

Mar 25, 2015 | LG Z42PJ240 42 in. Zenith Plasma TV

1 Answer

Zenith plasma TV just shuts off for no reason


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Nov 04, 2014 | LG Z42PJ240 42 in. Zenith Plasma TV

1 Answer

I have a Z42PJ240 42 in. Zenith Plasma television I canno.v.t find anywhere to manually power on the t


hi the power button might be underneath the tv or a touch screen panel

regards
shaun

Apr 21, 2014 | LG Z42PJ240 42 in. Zenith Plasma TV

1 Answer

Just install a new 42"


Can you please describe the problem with a little bit more detail? Are you saying that the pictures are coming up with a ghost effect? When the pictures are freezing what exactly do you mean, as in when changing inputs you can still see the picture there but gradually goes away?

Jan 10, 2011 | Zenith Televison & Video

2 Answers

My LG Plasma 42PC3D turns on and off repeatedly. I turn on my FIOS set top box first and than the TV and it turns on and off repeatedly (front bottom display goes red and green, red and green repeatedly)....


Your plasma TV has a power supply 6709900019A. These power supplies failed due to defective capacitors. See the picture below and check the capacitors mark with the red lines. There are 10 capacitors that should be replaced even if they do not show signs of bulging/swelling on top.
The value of the capacitors is 3300uF/10V but you can use 25 volts as long as they fit in the space provided by design.


4c29d64.jpg

Sep 24, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

42 inch LG Plasma TV - Lost picture


If you paid by cheque or credit card, that is your proof of purchase.

Mar 09, 2017 | LG 50PG6000 50 in. HD-Ready Plasma TV

2 Answers

42 inch LG Plasma TV - Lost picture


Most likely what happened is one of the capacitors went bad. When a capacitors goes bad it produces a popping sound. This could be an easy and cheap fix if you find the bad capacitor or capacitors. The bad capacitor will have a bulging top most likely on the power board but could be anywhere.

Feb 24, 2009 | LG 42LC3R 42 in. LCD TV

1 Answer

Zenith zsus pop


Hello to all! Some of the time with LG type Y & Z sustain boards you must replace both the boards in order to completely the repair or but not always. Please feel free to message or call me if you need more help with your Zenith plasma TV. 1-503-432-9904 / pleasefixitdave@yahoo.com Ask for Dave! If you are reading this post and you need help with a plasma or LCD type TV give me a call!

Dec 20, 2008 | Zenith P42W34P 42 in. EDTV-Ready Plasma...

Not finding what you are looking for?
LG Z42PJ240 42 in. Zenith Plasma TV Logo

Related Topics:

90 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18389 Answers

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...