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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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LCD conductive tape
I'm trying to repair a cheap alarm clock with an LCD display.
(I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark |
#2
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
Can you remove the tape, and clean it and the board contacts? If so, that
might be all that's needed. |
#3
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
Mark wrote:
I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark http://www.atotech.com/en/products/e...ink-paste.html |
#4
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
In article
, Mark wrote: I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. Why not just arrange a piece of fairly stiff foam to press on it just like your finger does? Isaac |
#5
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LCD conductive tape
Mark wrote in message
... I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark 3M anisotropic tape ? do you have a tame bank manager ? |
#6
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
Mark wrote in message
... I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark Just permanentise your fingers with dense foam/rubber/wedges against casing or against cable ties around pcb |
#7
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
On Mon, 8 Nov 2010 15:24:38 -0800 (PST), the renowned Mark
wrote: I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? They're called "Heat Seal Connectors" generically. Originated by a Japanese company, IIRC (Shin-Etsu, maybe?) , but now more widely produced. Anybody seen it for sale anywhere? Tons of it, but only in Asia. You allegedly need proper (expensive, generally) equipment to get reliable bonds, so it's generally considered unsuitable for low volumes, but I suspect anyone with a small mill could cob something up with an arbor press and a temperature-controlled metal strip that would work adequately given a bit of practice. thanks Mark Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
#8
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
Spehro Pefhany wrote: On Mon, 8 Nov 2010 15:24:38 -0800 (PST), the renowned Mark wrote: I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? They're called "Heat Seal Connectors" generically. Originated by a Japanese company, IIRC (Shin-Etsu, maybe?) , but now more widely produced. Anybody seen it for sale anywhere? Tons of it, but only in Asia. You allegedly need proper (expensive, generally) equipment to get reliable bonds, so it's generally considered unsuitable for low volumes, but I suspect anyone with a small mill could cob something up with an arbor press and a temperature-controlled metal strip that would work adequately given a bit of practice. Ramsey used to sell one to bond LCD displays for pagers & cell phones. It was made from a 1/2 ton arbor press. -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
#9
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
"Mark" wrote in message ... I'm trying to repair a cheap alarm clock with an LCD display. (I know this isn't worth my time but at this point I'm more curious...) A few segments of the LCD are not working and when I press the conductive tape that connects the LCD to the board, it starts to work. OK a bad connection. But am trying to buy a piece of this conductive tape and I can't find it anywhere even described on the Internet. It seems like ordinary scotch adhesive tape but with conductive ink tracks. It is 1.5mm pitch and has 28 conductors. It is simply stuck onto the lip of the LCD and the PWB. It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark If it is just scotch tape with tracks on it, you could make your own with a conductive ink pen. If it were me though, I would wedge foam in there like others have suggested. -Mike |
#10
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) *ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark If it were me though, I would wedge foam in there like others have suggested. -Mike Spehro, and the others.. thank you..."heat seal connectors" is the term. http://www.yipshing.com.hk/ok/lcd_connector.htm I should have just arranged something to press and hold it in place but I already pulled it off, so I'll chalk this on up to lesson learned. It was a $5 clock so no big deal. If you come across this stuff, do NOT pull it off, that will only make it worse. Mark |
#11
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
Mark wrote in message
... It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark If it were me though, I would wedge foam in there like others have suggested. -Mike Spehro, and the others.. thank you..."heat seal connectors" is the term. http://www.yipshing.com.hk/ok/lcd_connector.htm I should have just arranged something to press and hold it in place but I already pulled it off, so I'll chalk this on up to lesson learned. It was a $5 clock so no big deal. If you come across this stuff, do NOT pull it off, that will only make it worse. Mark &&&&&&&& I was just going to ask if anyone had a URL for this stuff I wonder if there is a living to be made by a native English speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english" Anyone happen to know what the bonding chemical is ? |
#12
Posted to sci.electronics.repair,sci.electronics.design
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LCD conductive tape
"N_Cook" wrote in message ... Mark wrote in message ... It's not zebra strip. It's not flexible flat cable FFC which is actual wire. This stuff is actually adhesive tape with conductive (black) ink. What is this stuff called so I can search for it? Anybody seen it for sale anywhere? thanks Mark If it were me though, I would wedge foam in there like others have suggested. -Mike Spehro, and the others.. thank you..."heat seal connectors" is the term. http://www.yipshing.com.hk/ok/lcd_connector.htm I should have just arranged something to press and hold it in place but I already pulled it off, so I'll chalk this on up to lesson learned. It was a $5 clock so no big deal. If you come across this stuff, do NOT pull it off, that will only make it worse. Mark &&&&&&&& I was just going to ask if anyone had a URL for this stuff I wonder if there is a living to be made by a native English speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english" Actually yes, at least in Japan there is. I don't have any expirence in China, but I know for a fact here in Japan there are jobs for native speakers all over the place in correcting "Engrish".. Mike |
#13
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LCD conductive tape
I wonder if there is a living to be made by a native-English
speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english"? The term is "Engrish", and NO, THERE IS NOT. I've been trying "forever" to get several companies, native and foreign -- including National Semiconductor -- to pay me to edit their docuementation. THEY WILL NOT. It is of less than zero concern to them. As long as they make money, the quality of their user manuals, etc, does not matter. |
#14
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LCD conductive tape
On Wed, 10 Nov 2010 18:09:44 +0900, "Michael Kennedy"
wrote: I wonder if there is a living to be made by a native English speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english" Actually yes, at least in Japan there is. I don't have any expirence in China, but I know for a fact here in Japan there are jobs for native speakers all over the place in correcting "Engrish".. Mike Probably, if it was reasonably priced. On a somewhat related note, I recently met a middle-aged Brit lady who lives on Lantau in HK. One of her part-time income streams is short term contracts where she is flown to a factory on the mainland and she tries on their prototype bras and offers feedback on fit, support etc. Fairly lucrative by the hour, if one is the type of woman who can't run without suffering two black eyes... |
#15
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LCD conductive tape
On Wed, 10 Nov 2010 04:39:19 -0800, "William Sommerwerck"
wrote: I wonder if there is a living to be made by a native-English speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english"? The term is "Engrish", and NO, THERE IS NOT. I've been trying "forever" to get several companies, native and foreign -- including National Semiconductor -- to pay me to edit their docuementation. THEY WILL NOT. It is of less than zero concern to them. As long as they make money, the quality of their user manuals, etc, does not matter. Probably they'd find it embarassing to admit that their "docuementation" was in any way lacking. Maybe with a bit of guangxi.. |
#16
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LCD conductive tape
Michael Kennedy wrote:
"N_Cook" wrote in message ... Mark wrote in message ... [...] I wonder if there is a living to be made by a native English speaker technical author contacting these Chinese and HK companies and charging for tidying up their "english" Actually yes, at least in Japan there is. I don't have any expirence in China, but I know for a fact here in Japan there are jobs for native speakers all over the place in correcting "Engrish".. ....and correcting the spelling of words like "experience"? :-) -- ~ Adrian Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk |
#17
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LCD conductive tape
"William Sommerwerck" kirjoitti ... I've worked at and for Microsoft, and it seemed fairly concerned about providing good documentation in other languages. Whether it did or not, I don't know. I can tell you that Steve Ballmer has less-than-zero concern about its English documentation. (I can show you the e-mail to prove it.) Yes, Microsoft translations are quite high quality, at least around here |
#18
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LCD conductive tape
What? And ruin a perfect score on poor documentation?
Some Japanese companies have very good English manuals -- because they're written by Americans. Plextor is one, Standard Vertex (Yaesu) is another. I have a Yamaha DSP-3000 dating back 20 years, and the manual appears to have been written by a native-English speaker. I don't know about current Yamaha products. The second-worst user manuals I've ever seen are for my Olympus and Canon DSLRs. THE worst is for my Pioneer plasma TV. It tells you ABSOLUTELY NOTHING about what the controls actually do, and how one should adjust them. And it's over 100 pages long! |
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