I know this would normally be considered a bad panel but I have two of these sets. One had a tcon that had burned components. Mostly voltage regulators. The other one had a picture that was really slow to refresh. I tried the tcon in the other tv and had the same results. At tempted to press on ribbons and didn't change. Checked tcon voltages and tried disconnecting one ribbon on each side of the panel with no change. Tcons are.not cheap if I can find one. What should I look for? The.odds of doing this on two TVs is odd.
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Did I leave the soldering iron on? -
Re: sony kdl-46xbr6 slow refresh
Most probably the bad tab bond. search this forum for "tab Bond" for Sony or samsung. -
Re: sony kdl-46xbr6 slow refresh
That's exactly what I figured. Oddly I pressed on them til I was blue in the face. No difference. Never seen a set with motion blur over the whole screen not being designated to the right lt or left. This screen is uniform all the way across.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
This is an odd one. I have sparkles in the middle of the screen. Just tried the board in a k own working kdl-46z4100. Same problem. Something on the tcon is causing the issue. The whole screen is sluggish. Holding images from previous scenes.
very slow to refresh. Also darker than normalLast edited by freakaftr8; 10-21-2014, 12:58 PM.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
http://i845.photobucket.com/albums/a...ps392238f3.jpg
http://i845.photobucket.com/albums/a...ps991acb4c.jpgDid I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
We have seen this before and it is caused by some panel failure but not tab bonds. Sadly very common on Samsung panels.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 kdl-46xbr6 slow refresh
that's exactly what I was thinking but I have a working kdl -46z4100 and when I put this t-con into that TV it did the same thing and if I take its T CON and put it into the non functioning TV it now works perfect two so it's definitely in the t-con board for some reasonDid I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Found the problem. Two 8 pin voltage regulators are shorted on the outputs. Going to try to find replacements. I'll take pics and post tomorrow. Think this is a typical issue with this tcon board. The other tcon has similar issues and blew these in series of four. There are 8 of these in series.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Can it be due to shorted out MLCC connected to the output pin?Never 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 kdl-46xbr6 slow refresh
Nope checked all of themLast edited by freakaftr8; 10-22-2014, 05:11 PM.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
http://i845.photobucket.com/albums/a...psd3050dc4.jpg
http://i845.photobucket.com/albums/a...ps9447924a.jpg
I just got another one of these in tonight. Same problem blown fuse F 603. Bypassed fuse and got a perfect picture but this t-con board is short-lived the picture goes to colored vertical bars after 5 minutes of running. The other two t-con boards which also had the same blown fuse those boards are very slow to refresh the screen and the screen is dark but I've tried this board in the other two TVs and all the screens are perfect. If you look at the pictures you will see what F 603 controls. I tested different readings between the two boards and everything is the same in spec with the bad board and it working board.
Any ideas about these particular t-con boards and what kind of repairs that might have been done to them by others? They're very rare and when you find them they are very expensiveLast edited by freakaftr8; 11-14-2014, 01:33 AM.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Perhaps some kind of quad or dual op-amp, what's the part number on the IC?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 kdl-46xbr6 slow refresh
9853aDid I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Here's what I found. Not a lot of info on the Internet.
It's called
BD9853AFV-E2 9853A BD9853AFV E2
http://m.aliexpress.com/item/1245674...bilesitedetailLast edited by freakaftr8; 11-14-2014, 01:53 AM.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Here's the bad tcon. Slow to refresh and takes a minute to clear the menu off the screen.
Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
Here's the good t-con. Great picture for 5 minutes or more
then this.
a quick power cycle on off back on clears the problem for a while until it does it again. I don't think it's actually something getting hot because sometimes when I turn the TV on the bars are there as soon as the screen backlight comes OnLast edited by freakaftr8; 11-14-2014, 02:09 AM.Did I leave the soldering iron on?Comment
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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 kdl-46xbr6 slow refresh
They test good. What are the chances the controller ic is bad?
Also on tcon that works it seems the motion causes it to go into failure mode. IF I leave the the screen paused it will stay ok.
by the way before in an earlier post when I had mentioned that I found the problem that was shorted voltage regulators they're not shortEd. that circuit has low ohms reading. It's that way on the good t-con board also so I never did fix the initial problemLast edited by freakaftr8; 11-14-2014, 09:02 AM.Did I leave the soldering iron on?Comment
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Re: sony kdl-46xbr6 slow refresh
I would check the tab drivers, maybe they get too hot. Or something on the mainboard.Comment
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Re: sony kdl-46xbr6 slow refresh
It's not panel, if you read above. Rare that it's not panel!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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Hello everyone,
I've recently been given a Sony 8k Z8H. It's got a white screen with two vertical black bars. At times it's given me the 5 blink Tcon code. Testing voltage on the Tcon I can see some low or missing voltage. I've done a basic visual check of cables and the COF. Not seeing anything obvious. The original Tcon seemed to have good caps until turning it over. On the bottom I found maybe 10 caps with both sides of the caps shorting to ground. I thought ok these caps and likely other components on the Tcon are shorted so let's try a replacement Tcon. I just received the... -
The TV shows a black screen with no image.
TCON ribbon connectors were disconnected individually for image and there was no half image even.
Later both ribbons were disconnected and TCON voltages were tested.
12V, 3.3V, 1.8V were seen present but VONE signal reads 0V.
There is also a short to ground in this circled inductor.
Is this a TCON issue or something else ?... -
Hi,
I have this problem with my Sony 55' AG9.
It flashes 4x.
I have found the service manual, and seems it is the TCON.
Before I buy a TCON can someone check the vid?
Thanks in advance!... -
Hi, hoping for some views on this one which I've not come across before. The TV generates an image that has 12 noticeable bands across it. The image is still there and accurate, but the colour (or perhaps the brightness) changes gradually across each band which creates a noticeable 'step change' at the edge of each band. Given it's a 4K TV with 2160 rows of pixels, I'm guessing the 12 bands correspond to 12 gate drivers of 180 rows each. If this guess is right, then perhaps:
a) all the gate drivers are malfunctioning the same way (which seems unlikely), or
b) the Tcon board is malfunctioning,... -
Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
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