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Toshiba Regza vertical lines

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Old 12-23-2010, 09:49 AM   #16
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Hi Tweet,

I sent you a PM
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Old 01-30-2011, 04:31 PM   #17
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Default did you fixed the problem?

I have similar issue....my toshiba regza 42rv530u will work for about 30 min...then vertical lines will appear on the right hand side of the screen, followed by more image distortion, black spots, more lines. You seem to have tried a few things and I'm hoping you found the solution. Please share.
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Old 01-31-2011, 08:26 PM   #18
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Breakthrough????

I had a moment of genius.... I think... Hopefully it will lead to a better diagnosis of our problem...
A few days ago I got bored and decided to take a look at my TV that has been giving me so many problems...
I dont know how many of you guys's tvs will do this but I plugged in and turned on the tv and after about 30 minutes she finally 'warmed up'.... and all my vertical lines went away and started acting correctly. I know that it will only operate in this condition for a few minutes (20 or 30??) before it 'un-warms up and goes back to doing what it always does.
Anyway, I started looking through settings of the actual TV. I found something interesting... Under one option, I found a "Startup Mode" option, and saw that it was set to 'Economical'. I changed it to 'Normal' (or something like that), and I couldnt believe what happened. The TV started working completely normally!!!
It came on like it was supposed to. I played games and watched TV on it. Everything was finally right in the world. I couldnt believe it.
I figure that by somehow changing this setting, it kind of 'zapped' the tv to life with a bigger shot of power or something and made it power up normally but obviously didnt fix the real problem only fixed the symptom...
Anyway, I played on it for almost a week now and it worked completely normal.

But tonight, fate reared its ugly head. It started doing it again... At first the right third of the screen started flickering to the vertical lines... And now, it is all vertical lines again, just like it was before... Dang.

So now, I guess maybe our problem lies in a power issue??? Has the power board gone out? Any ideas?
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Old 02-01-2011, 04:51 PM   #19
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Sounds like a power issue, and by taking it out of econo mode if stopped until more damage (likely to the capacitors as a guess from the additional power) started up again.

Call Toshiba right away and these lines apparently look like the first signs of impending greater problems so everyone who has this problem should have it fixed right away while under warranty.
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Old 02-01-2011, 09:46 PM   #20
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Yes I agree it sounds like some kind of power issue... I pulled the back off the tv tonight and looked and it seems that when compared to what I remember from when I had the back off before, The three largest capacitors seem 'bulge-ier' than what they were before. All three of these are located on the power boards (two on the main power board and one on the sub power board). Like I mentioned earlier in this topic, I dont really have any experience in capacitors but am confident in replacing these myself if I could track down the correct replacements. I started looking a little bit on the internet and think I found the right ones for less than $5 a piece so I might order those and see what I can do...

Anyone know if there is a way to test a capacitor with a multimeter or something to see if they are bad other than just looking for 'bulges'?
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Old 02-03-2011, 01:48 AM   #21
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Caps should be perfectly flat on top. If they are not, then they are going or are bad already. When flat they almost look slightly concave because of the indented "X" on them.
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Old 02-05-2011, 07:02 PM   #22
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well then these are most likely bad I believe. Pulled the power board out and removed the caps. Hooked em up to my multimeter that happens to have a capacitance meter built into it and they seem to test bad, however I also see that the fuse in my meter is bad so...I still dont really know for sure. Anyway, new caps are on the way in the mail. We should know in about 5 to 10 days if the caps are the issue.... I will keep you all posted
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Old 02-13-2011, 12:17 PM   #23
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okay.... well ended up buying an entire new power and sub power board assembly instead of just replacing caps. It arrived yesterday, and I installed it to find that it fixed nothing! Still got the same old problem... This thing is sure turning into a money pit.

So far I have replaced every board in the thing (which is just the TCon board, power board, and sub power board) except for the 'main' logic board with all the inputs on it and the inverter boards for the backlights. It cant be anything with the backlights because even when the right third of the screen isnt working, there will still be either vertical colored lines or just the regular black 'glow' with no picture.

Earlier in this thread someone mentioned that they did not believe the panel was bad due to the fact that sometimes the picture actually DOES work and that it will display the lines... Anybody else agree with this? Or do you think the panel could in fact be bad?

If I end up gathering up some money, I might swap out the main logic board, but I am kind of doubting that is my problem. Does anybody know if there is somehow 2 or 3 different 'ribbons' or 'inputs' going directly into the panel where perhaps one or part of one might have gone bad and be causing my problem?
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Old 02-13-2011, 12:40 PM   #24
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Not to hijack the thread but my sister have a toshiba 32 rv ?????
It has one horizontal line in the center of the screen could that
be the same problem ?
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Old 02-23-2011, 03:22 PM   #25
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UPDATE:
okay, well georget and myself has been keeping up with each other's progress with his guidance I once again have gotten my TV going without lines again...

Basically, the problem IS with the panel, which likely is bad news for most of us...

What we did was actually remove the front plastic bezel to get all the way down to the panel itself (which is actually an involved process). once you get the plastic off the front, the only thing holding the panel on is a metal square ring that is held in by like 14 screws. Once I got to this point, and started unscrewing the screws, I had the tv on to watch for any changes while I removed the metal (was lucky to not get shocked...) but as I removed the screws on the metal bezel on the side of the screen that was acting up, the lines vanished and the screen started working again.

I went ahead and removed the metal all the way. The panel is very thin with just a bunch of ribbon cables going to certain areas of the panel. With the tv on, i pressed and wiggled the ribbon cables to see if i could find which one was the bad connection (although i was gentle because I didnt want to it up again since it was working now). Anyway, no matter what i did, nothing changed. the tv stayed working.

So without asking any more questions, I put the metal back on, pieced the speakers, light bar, and other circuit boards back and re installed the front plastic bezel and the tv still worked.

TV has now been working for about two days or so after removing and reinstalling the plastic and metal... I suppose there was a bad connection somewhere on one of those ribbon cables or it was grounding out or something but i guess by taking off the metal and plastic, it re-connected or something and fixed itself...

On the other hand, I believe georget said he didnt have the same results when he did the same thing to his TV, so I suppose I was just lucky with my results....


-dro
I would think that would be a problem with the panel itself as well...
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Old 03-02-2011, 12:06 PM   #26
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So.. the TV is still 'working normally' since the 'fix' I described above.

Had one hiccup since the 'fix' where it reverted to its lines in the right third of the screen but I just pulled the plastic again and pulled all the screws from the metal ring holding the panel and wiggled it a little and it started working again... Popped the screws in again and been going strong since.

I kind of expected it might do something like that so I had tried to make it easier for myself when I 'fixed' it the first time and when I re assembled it I just had left the back off and left the front plastic with no screws holding it in (it just sticks on from the front).

Even with the back off and the front not screwed in, it is working normally and looks normal with all the visible body plastic in place so I am happy with it..........for now.
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Old 05-26-2011, 01:53 PM   #27
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Default Same Issue, found the culprit?

I have a Toshiba 46RF350U and have had the same vertical line problem that seems to plague a lot of these. It was getting to the point that it most of the right half of the screen was twice as dark as the left, which was still perfect. After being on for a few minutes, the right side would go dark, then a few more minutes and the entire screen would go off. The tv was still on and the sound was still on, but the screen was off.

Soooo...I found this thread. I took it apart and unscrewed all the screws around the final metal ring....hoping I would have similar resullts as the last post, but no. No change. I figured I had gone thid far, may as well keep going until it is fixed, or Ive destroyed it.

I pulled the metal ring off the top, exposing the ribbon cables. I checked each one, and when I poked the ribbon cable on the far right, the picture came back! the screen was fully illuminated, and the black line was back.

So I poked and prodded the cable and got the picture back 100% perfect on the TV! No black line, no flickering. Perfect.

The problem is that if I moved at all, the line would come back, and or that side would go dark. Its very sensative. If I have the right amount of pressure on the right "spot" then perfect picture. If I move a little, the line comes back, or the color turns dark.

So now what? my technical knowledge on this is stretched to the limits. It seems like the problem is with how that ribbon cable connects to the screen? What can I do about this? I am sooooo close to having a perfect picture and saving a really nice tv, yet so far!

I have attached some pics to show you what I am dealing with.
Attached Images
File Type: jpg photo 3.jpg (43.6 KB, 125 views)
File Type: jpg photo 4.JPG (137.5 KB, 118 views)
File Type: jpg photo 1.JPG (137.3 KB, 105 views)
File Type: jpg photo 2.JPG (169.1 KB, 106 views)
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Old 07-04-2011, 06:05 PM   #28
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Default Right third of screen showing vertical lines

So, what I'm reading here is the only known thing that changes this is to open the front and remove and reattach that bit of metal?

Any further developments?
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Old 07-07-2011, 10:52 AM   #29
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Default Similar problem Toshiba 52RV530U Regza

I have a Toshiba 52RV530U Regza which started exhibiting a similar problem: intermittent vertical lines about 8" thick along the right side of the screen. In my case, warmup did not fix the issue - in fact, I had the opposite , where the first few minutes were problem-free, but eventually the problem would show up sooner or later. A few weeks later, the problem is no longer intermittent - it occurs as soon as the TV is turned on, and will not go away. Luckily it has not spread (yet).

So what I have gathered from reading this thread is that wiggling the panel brackets and/or ribbon cable connectors is the only "fix" for this problem? I have little to no experience in electronics repair, but I like to think I am reasonably intelligent and know which end of a screwdriver to hold, so I'd be willing to try anything. Any further results? Or should I expect that I will have to jiggle the bezel and cables to get a normal picture until such time as I replace the TV?
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Old 07-09-2011, 12:35 PM   #30
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I opened mine, no amont of jiggling or checking ribbon attachments or visual inspection helped. Local repair shop has declared it junk. I'm sad. I switched away from Toshiba for the new one.
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