Televison & Video Logo

Related Topics:

Posted on Feb 03, 2008
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

42" LG RZ42PX11 Plasma - rainbow lines on whole screen but sound

Hi,

I turned my TV on this morning (after it working fine last night) and instead of a picture there are vertical rainbow lines on the whole screen but I can hear the sound fine.

Can anyone help?

  • 4 more comments 
  • Anonymous Feb 07, 2008

    Hi. Replace the lower Y driver PCB's and buffer board as well as the YSUS board. When you get the price of spares for a BIY job you may also consider the land fill option wher all plasmasmade by LG belong.

  • tonyjohn04 Feb 16, 2008

    my lg 42in plasma tv also has rainbow lines on whole screen and the sound is ok just over 1 year old

  • sandyman205 Jan 10, 2009

    Hi Philips 26pf3320/10 lcd tv
    Can anyone point me in the right direction to identify the faulty circuit board /part based on the description of my fault as this will allow me to buy & replace the part.

    Picture illegible as very fine vertical lines down screen have color content & very faint picture in the background, I have attached 2 photos. The horizontal white lines come every time I turn it on then it slowly turns to a vertical rainbow as the 2nd pic shows.

    Strange thing is after this fault arose it has returned to normal with a perfect picture on 3 occasions when I was messing about with the remote control, but that's been twice in about 100 times I tried it.

    I am familiar with electronics and have checked all circuit boards with magnifying glass and cannot find any blown components.

    I have also downloaded a service manual which shows you how to get the led to blink to sequences to id error codes but they are fast & hard to id the correct qty/sequence.

    Thanks Andy

  • a1laki Jan 21, 2009

    42" LG RZ42PX11 Plasma - rainbow lines on whole screen but sound problem, and notify you when a new solution is offered.

    I think this lg tv is waste off money..

  • Anonymous Mar 13, 2014

    It worked for 2 months, then when I turned it on this morning there is no sound - the volume works on the screen but I hear nothing

  • Anonymous Mar 21, 2014

    no picture

×

4 Answers

Anonymous

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that gotĀ 5 achievements.

Governor:

An expert whose answer gotĀ voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

  • Expert 85 Answers
  • Posted on Feb 27, 2009
Anonymous
Expert
Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that gotĀ 5 achievements.

Governor:

An expert whose answer gotĀ voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

Joined: May 26, 2008
Answers
85
Questions
1
Helped
23215
Points
216

Hi there.its likely that the lower y-drive panel has died.this is a very common problem with this model.the easy way is to remove the panel from the set completely,power it up and you should be greeted with the top half of the picture.this means ic failure,usually the bottom one for some odd reason.not replaceable unless you have the gear,these ics are available from dalbani(nikkai)for those interested.be extra careful with the four ribbon cables when removing/refitting.damage to these writes off the display panel.hope this helps somewhat,regards,steve.

A

Anonymous

The screen on my TV lights up but there is no video signal. I have replaced all boards and still no video. I put the screen in a LGA TV and I have the same problem. I have audio but no screen video. Now I am at a loss. Is it possible that there is a defective screen?? Thsnks Ragan

Ad

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that gotĀ 10 achievements.

MVP:

An expert that gotĀ 5 achievements.

President:

An expert whose answer gotĀ voted for 500 times.

  • Master 1,284 Answers
  • Posted on Feb 04, 2008
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that gotĀ 10 achievements.

MVP:

An expert that gotĀ 5 achievements.

President:

An expert whose answer gotĀ voted for 500 times.

Joined: Jan 21, 2007
Answers
1284
Questions
1
Helped
498738
Points
3271

Souds like a bad logic board to me.

A

Anonymous

Pl chek urs tv horizantal deflection coil may be dry sold or any pf open

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

My LG 42 Plasma works sometimes then half the screen goes black but the right side stays perfect???

have almost the same problem left side is black with sometime blue line red lines or a whole bunch of different lines some one help please have sound and right side of tv works fine
10helpful
2answers

Mines a LG RZ42PX11 it intermittently gets a black vertical line down the middle of the screen.

Hi I have a LG RZ42px11 there are 6 vertical thick black lines running down the middle off the screen, when cold the TV seems OK but if it has been on for around 10mins or on standby the lines stay on screen.

Thanks.


Douglas.
0helpful
1answer

Rainbow lines and no picture

NEW YSUS AND BUFFER BOARDS ARE NOW NEEDED THE YSUS IS THE BIG BOARD IN THERE VERY LEFT HAND SIDE ONCE BACK IS OFF BIG BOARD WITH 1 BIG HEATSINK,, THAT AND THE BUFFER BOARD PUSHES INTO THAT WITH TWO BLACK CONNECTION TO THE YSUS REMOVE BOTH BUFFER IS FIDDLEY,,NEED TO REMOVE 4 RIBBON CABLES ATTACHED TO THE SCREEN B4 HAND,,

6871QYH053B IS YSUS MODEL BUFFER U WILL ALSO FIND ON EBAY.

0helpful
1answer

2" wide Red stripe on right side of LG 42" plasma TV screen

If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line 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..
1helpful
2answers

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.
28helpful
6answers

LG PLASMA TV WITH COLOURED LINES OVER SCREEN

If the Video (Picture/Pix) is gone but you can hear the Audio (sound), then it could mean the YSUS PCB Assembly is gone/kaput/finish. Can replace the PCB, not repair the PCB due to timing circuitry involve. Cost maybe roughly $500 depending where you located. The PCB is located on the left hand side of your TV when you are facing the back (Back open). Might find 3-4 brown flex membrane connecting to the plasma panel. The PCB has a silver or black aluminum heatsink (big) on it.
Good Luck.
0helpful
1answer

42 inch LG Plasma TV - Lost picture

ysus pcb that supplies voltage to the panel is faulty
0helpful
2answers

LG Plasma picture probles

hi there. I have this same TV, and the exact same problem. Last night, i was playing around with it, took off the entire back of it to see if I could fix it. After a few minutes of tinkering, I found that if I apply pressure to the TV in a specific way, the left side of the picture comes back. Here's what I did: standing in front of the TV, I hold the top of it, in the middle with my right hand, and the upper left corner with my left hand. Then, I gently apply pressure, forward (away from me) with my right hand, and backwards (toward me) with my left hand. Sort of like trying to "bend" the screen. At some point, the picture comes back .. . the problem is, if I let go, then the colored lines come back . . . maybe one can mount it on a wall in such a way that the pressure is still there . .. i haven't tried. That's all I got.
1helpful
1answer

42 inch LG Plasma TV - Lost picture

sounds like it may be a software upgrade
Not finding what you are looking for?

2,997 views

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6688 Answers

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

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

Answer questions

Manuals & User Guides

Loading...