I have lost count as to just how many of these I've encountered. This is the third this week though. I had a KDL 52W4100 the other day. I'm kicking myself over that one because it wasn't that bad and I think I could have fixed it. But, i didn't even waste my time trying. I wouldn't have sold it, but would have kept it for myself. Anyway, I'm wondering, has tried using an iron to heat and press the tab back in place? Would that possibly work? I know about the shim method, it's just too unreliable for me.
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I've tried hot air - to no avail unfortunately...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. -
Re: Another Sony with Tab bond failure. KDL-46S4100.
I kind of figured that. I know the tape (can't remember what it's called) only has a shelf life of a couple months.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
Someday, when I get a big enough shop, I'm going to try to make a jig which could be used to align and fasten the tabs with new tape. I know how crucial the alignment is, and that the manufacturers have multi-million dollar machines for this, but that doesn't mean their way is the only way. I think I could make a jig for a few hundred bucks which would work.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I tried running the set covered with towels to over heat the bonds. That failed....Comment
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I think the idea would be to heat them, while at the same time, pressing them in place. And then, I'd say the pressure would need to be maintained until it cooled.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
Then do we still want to use thermal pads to hold them in place, to keep them in place ?Comment
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Re: Another Sony with Tab bond failure. KDL-46S4100.
It seems to have not worked. I don't think it's the adhesion of the tab to the panel or buffer board. I think it's the adhesion of the chip on the tab, or in some way, the tab itself. I just found the exact same panel in my basement and can't remember why I put it down there in one piece. I usually strip them completely. I think maybe I was unable to test it or something. Maybe I'll get lucky.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I think it's the chip bonding too. I've noticed stronger benefit when pressing on the chip directly. In my opinion the tab bond "repair" is anything but - it will simply prolong the time until permanent failure. Maybe if caught early it'll be easier to fix.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: Another Sony with Tab bond failure. KDL-46S4100.
That panel I found in my basement turned out to be cracked. No luck for me today. I removed the bad tab and the ends of the chip are not adhered to the tab so I'd say that is the problem.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I have only ever been able to fix one lcd screen with tab bond issue with foam tape by sticking it to the tab then reinstalling the frame but if the set got knocked the lines would reappear, and it was a 50" so obtaining a replacement screen was almost impossible, its a pain.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I don't even waste my time anymore, but this one just got me curious.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I don't mess with any LCD/LED Sony panels anymore if they have screen issues I just gut the good stuff and toss em in the e-recycle bin and be done.Comment
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Re: Another Sony with Tab bond failure. KDL-46S4100.
For a while, I wouldn't even buy Sonys. Aside from the notorious tab failures, they also have the parts which have the same part numbers, but are not the same part. Meaning, you need to order by serial number. That can be a nightmare for a buyer, and a seller.------------signature starts here------------
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Re: Another Sony with Tab bond failure. KDL-46S4100.
Yes, that's the case for a lot of the older LCD units, newer ones like 2009 and up seem to share a lot of parts.
Mostly I pass on them too, although I did take a chance on a newer 2011 LCD no separate t-con (Built into the panel) had red screen and ghosting like a gamma chip. I even think I saw it on the TFT board, Funny it only had 2 tabs one left and one for right going from the screen to the board and there was not any IC drivers on them either they were built on the board or fused into the LCD panel someplace.
Probably could have been saved but I said NEWP and gutted it.Comment
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Re: Another Sony with Tab bond failure. KDL-46S4100.
I fixed an older Sony. But only ever done one. Notoriously difficult to fix. Like Hitachi plasmas....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: Another Sony with Tab bond failure. KDL-46S4100.
Talking of hitach plasmas got one coming on Saturday with vertical lines down the screen I will try reseating the ribbons on the y sus I will make a thread if not successful.
Here is a picture of it that the client sent.Attached FilesLast edited by ReeceyBurger123; 11-13-2014, 03:33 PM.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Another Sony with Tab bond failure. KDL-46S4100.
In my personal experience with full screen lines like that, its always been a bad panel. Looks like an older Hitachi since its got side speakers.Comment
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Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Hi everyone, newcomer in this forum, i watched tons of video from Sorin, i like the way i calmly explain things, i did quite some console repair, i am not that bad at micro-soldering, but troubleshooting where the issue is, is definitely where i still have progress to make. Usually i was able to fix the console because the failure was obvious, or because i was able to find someone with similar measures on the board and was pinpointing what to replace that way.
Nevertheless, let's say, i don't come as a total beginner.
I have this old laptop, which suit perfectly my needs, with the... -
Buenas mi nombre es carlos me uni al foro porque estoy buscando el schematic de una sony vaio pcg-41217u otras formas de escribirlo son 1p-0117j01-a012 mbx-237 numero de placa revision 1.2 o Sony VPCSB (MBX-237), en fin me gustaria y ayudaria un monton si alguien me puede dar dichi svhematic para hacer las mediciones de una laptop de la mencionada anteriormente(Sony VAIO PCG-41217U) con el fin de repararla dejo de funcionar solo prende el led de la bateria al pulsar el boton de power el disco empiesa a hacer ruido de actividad pero los leds del frontas no reflejan acividad y no enciende la pantalla.... -
Diagnosed this TV as having a failed main board which I've replaced with one from a KDL 55HX850. They are (supposedly) the same board.
Being 'Smart TV' it requires a firmware reboot when you swap out boards such as T-Con or main board. It starts with a black screen and flashing yellow and green LEDS, indicating it needs that firmware boot. The procedure described all over the web is to put the software into the root directory of a FAT32 formatted USB drive and it should load that up once plugged into USB1 port. But not for me. I can see the LED on the USB chip flash for about... -
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This specification for the Sony VAIO Duo 11 Hybrid (2-in-1) can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Duo 11 boardview and Duo 11 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for Sony VAIO...09-06-2024, 05:30 AM
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