Does this look like TCON or panel or other problem? I can see a ghost of the moving image in the brown stripe on the screen. Sound/playback appears to work OK. Thanks.
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Re: Sony kdl32xbr4 Vertical Stripes
This one is due to bad caps in the power supply:
http://s807.photobucket.com/user/bud...ml?sort=3&o=23
This one I do not remember if it was T-CON or power supply problem:
http://s807.photobucket.com/user/bud...ml?sort=3&o=27Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Sony kdl32xbr4 Vertical Stripes
Wow! Did not know the caps in PS could cause stripes on panel. Thanks for the picture. Sounds like I should get the back off and take a close look at the capacitor tops.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
As luck would have it, I can't see any leaking caps
Since the set powers on, and stays on, how could I test this PS for problems?
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Re: Sony kdl32xbr4 Vertical Stripes
Just because a cap doesn't look bloated or leaking doesn't mean they are not bad.
Replace what you can and see what happens!Comment
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Re: Sony kdl32xbr4 Vertical Stripes
Thanks Shin. Was hoping maybe BudM would have some ideas. I'm a bit confused on the whole bad caps and causing lines on the screen? Is that normally really blown out caps, or just marginally bad?Comment
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Re: Sony kdl32xbr4 Vertical Stripes
It can happen, I have only seen it once before in a Samsung after 2 hours exactly the left hand side of the screen would go crazy with lines.
I thought it was a tab bond issue but after i tore into it to use the power supply I noticed all the caps excluding the high voltage cap were leakining or severely bloated.
Replaced them all and it solved the problem no more lines after 2 hours of use. TV is still going strong as far as I know as the buyer has been happy!Comment
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Re: Sony kdl32xbr4 Vertical Stripes
This one shows the solid lines immediately. They are opaque and completely block out the picture ... except for the brown band where you can see a shadow of the picture image with lots of static.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
Took a close look at the caps with reading glasses, and couldn't spot even any bloating.
I can actually get a PS for this unit for cheap, but I'm just thinking it probably won't solve the problem. Really wondering if that TCON is at fault. Unfortunately, the TCON is probably going to be a lot more than the PS.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
this is interesting. on a google search for this exactly model and the lines, I found multiple complaints about what I think is this set and the exact problem. they say sony and repair shops told them it was a "panel issue" , but I wonder if that lines up with the actual culprit?
http://www.amazon.com/review/R3TUH78...wasThisHelpfulComment
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Re: Sony kdl32xbr4 Vertical Stripes
You can verify the Voltages on the connectors to see if they are the correct Voltages as shown by the prints next to the connectors.
http://assets.shopjimmy.com/media/ca...052-12-top.jpgNever stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Sony kdl32xbr4 Vertical Stripes
And check if the T-con board has correct 12V.
It can be a panel fault, but it doesn't look like a typical one.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
Got my new meter, and tried testing the PS voltages per bud's reply.
Not sure if this is possible, or if I'm doing it right. The first connector has the switch for the PS, so I don't think it's possible to test with that unplugged?
I wasn't able to get any reading from the other connector, and I arc'd across two of the pins trying to read (they are really close). Also, is the ground just any metal on the chassis, or do I have to use the GND pins?Comment
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Re: Sony kdl32xbr4 Vertical Stripes
You can test with the connectors installed and the TV working. Just press against the metal sheath around each pin.
The chassis is the ground.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
Thanks Tom! I'm going to look and see if I can use that trick. I'll also need to find that 12v on the TCON as you said.
I've been doing some research about safety when working on these sets, and I did want to ask you. When testing around with the set powered on (or even not plugged in) what's the best way to avoid getting zapped? I thought those caps all discharged within minutes after unplugging, but I've read some lower quality builds might stay charges for weeks? I wonder how close my finger or body would have to get to something like a filter cap to get the big bolt. Since I've had a few "brain farts" where I've forgot the set was plugged in and went around plugging/unplugging connectors, I figure this is probably important.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
If the lines are moving around, It could be the main board. I had a Sony 46" with that problem.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
truep: the lines don't move. the brown colored strip on the screen seems to show a monochrome shadow of the picture behind it.Comment
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Re: Sony kdl32xbr4 Vertical Stripes
well , with the new meter, I was easily able to test most of those pins while the circuit was live. Didn't test the GND pins, because I wasn't sure how, or if that's important here.
Here is a picture of the TCON. Thanks for any ideas on what I can test there. Would like to be able to confirm bad TCON, because it's expensive whether I'm buying or selling it.
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Re: Sony kdl32xbr4 Vertical Stripes
Also, does anyone know what this means? I haven't seen too man tcon or panel repair services being advertised on Ebay, but apparently there is for this TCON. In the listing he describes the stripes that I have, but I don't understand what he's saying. Says "send in panel" Would that mean the TCON is bad, the panel is bad, or both?
http://www.ebay.com/itm/SONY-KDL-32D...item2345b0113fComment
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Re: Sony kdl32xbr4 Vertical Stripes
... and end around on Google, I was brought back to badcaps with this!
https://www.badcaps.net/forum/showthread.php?t=33983
Could it be that simple? If so, I think I need to test that resistor on the board. Not sure I know how to do that with my meter.Comment
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Hi,
Just now my Samsung LC32HG70QQUXEN monitor gave up on me. On cold boots I get many vertical stripes going across the screen (see the attached picture). After it runs for 1-2 minutes those go away but there are horizontal stripes going across the whole screen no matter of the input and PCs I use. (couldn't take an picture of it since the image size goes to 20MB and the camera doesn't pick them up)
In a video about a 27" monitor with an similar issue the guy removes one resistor and supposedly the entire monitor goes back to life? For sure this fix is only temporary.... -
Hi all,
I have Hisense H55U7B TV with no picture, only big vertical stripes. I did several tests and I'm not sure, where is problem.
1. Connected tcon to 12V, white, red, green, blue, black picture visible in cycle on full LCD without error
2. Connected only left side of LCD to tcon, big stripes
3. Connected only right side of tcon, visible normal picture on the right. Working as expected.
Where could be problem?
Tcon RSAG7.820.7932/ROH
Main board RSAG7.820.8698/ROH
Jan -
Hey everyone,
I bought a MacBook A1990 with no screen. I bought it knowing the motherboard was defective but wasn't sure what the problem was until I received it. It actually turns on but as you see from the attachment, it has vertical stripes, on an external screen!!
The board is neat. Not opened before for sure. Just a little dust, nothing more.
Recovery using wifi can be opened, as can also be seen in the photo but it doesn't go all the way through after connecting it to a wifi. It downloads the initial Recovery files but never completes the rest of the... -
Hello,
i order a t-con because i had bad colors on my SONY KDL-40V3000 :
With the new t-con the color are good but there are vertical lines on all the screen :
I've tried the old t-con and it returned to the initial issue (bad colors but no vertical lines)
Is there a way to fix the vertical lines on the new t-con ?
Thank you for your help
gpo23... -
good night! I pass photos of this tv with vertical stripes. what problem could it be? panel or tcon? the tcon of this model is integrated into the panel. Let's see if they can tell me what to do to see if it can be fixed. the vertical stripes have a certain pattern, because there are some equidistant....
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