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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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What is the difference between tuner cleaner and contact cleaner?
What is the difference between tuner cleaner and contact cleaner?
A friend needs the connection between her earphones and her cell phone cleaned. She gets intermittent loss of sound, and iiuc wiggliing the plug affects this sound But I don't think the solder connections are bad, sine she had it cleaned a year ago for the same problem and it worked well until a month ago. It's some sort of non-standard, proprietary plug. I'm not sure what to use, and I've long wondered about the difference between tuner cleaner and contact cleaner. When she went to the cell phone store, he used Keyboard Cleaner. I think the plastic is really clean now Thanks |
#2
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What is the difference between tuner cleaner and contact cleaner?
On Mon, 22 Aug 2011 12:54:32 -0400, micky
wrote: What is the difference between tuner cleaner and contact cleaner? Not much, since many vendors sell a product that does both. Sometimes either one claims to "lubricate" the contacts, which means that it leaves an oily residue. A friend needs the connection between her earphones and her cell phone cleaned. Any particular cell phone? Not all EP connectors are the same. If in doubt, use an air hose to remove the accumulated lint and filth. If the contacts are exposed, sharpen a pencil eraser to a point and use it to clean the contacts. Then use the air hose to remove the crud. She gets intermittent loss of sound, and iiuc wiggliing the plug affects this sound But I don't think the solder connections are bad, sine she had it cleaned a year ago for the same problem and it worked well until a month ago. It's almost certainly the solder connection between the jack and the PCB. Open her unspecified model cell phone, clean out the filth, and resolder the connector. If the connector appears to be cracked, replace the connector. It's some sort of non-standard, proprietary plug. Sorry, but I couldn't find anything under proprietary plug. I'm not sure what to use, and I've long wondered about the difference between tuner cleaner and contact cleaner. When she went to the cell phone store, he used Keyboard Cleaner. I think the plastic is really clean now I wouldn't use either type of "cleaner". Some 90% alcohol to disolve out any grease left by the previous attempt to use tuner/contact cleaner. If that doesn't work, tear the phone apart. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#3
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What is the difference between tuner cleaner and contact cleaner?
"Jeff Liebermann" wrote in message ... On Mon, 22 Aug 2011 12:54:32 -0400, micky wrote: Any particular cell phone? Not all EP connectors are the same. If in doubt, use an air hose to remove the accumulated lint and filth. If the contacts are exposed, sharpen a pencil eraser to a point and use it to clean the contacts. Then use the air hose to remove the crud. I was taught many years ago NOT to use a rubber eraser to clean contacts. The theory was that the rubber might leave a sulfur containing residue that will encourage corrosion. You may agree or disagree but prudence (a fine girl) dictates caution. |
#4
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What is the difference between tuner cleaner and contact cleaner?
On Mon, 22 Aug 2011 14:29:58 -0700, Jeff Liebermann
wrote: On Mon, 22 Aug 2011 12:54:32 -0400, micky wrote: What is the difference between tuner cleaner and contact cleaner? Not much, since many vendors sell a product that does both. Sometimes either one claims to "lubricate" the contacts, which means that it leaves an oily residue. A friend needs the connection between her earphones and her cell phone cleaned. Any particular cell phone? Yeah. It's a Sony Ericson W580i. Not all EP connectors are the same. If in doubt, use an air hose to remove the accumulated lint and filth. If the contacts are exposed, sharpen a pencil eraser to a point and use it to clean the contacts. Then use the air hose to remove the crud. Okay. She gets intermittent loss of sound, and iiuc wiggliing the plug affects this sound But I don't think the solder connections are bad, sine she had it cleaned a year ago for the same problem and it worked well until a month ago. It's almost certainly the solder connection between the jack and the PCB. Okay. Although the first cleaning caused it to work fine for almost a years. Open her unspecified model cell phone, clean out the filth, and resolder the connector. Okay. If the connector appears to be cracked, replace the connector. I'll be able to find one for sale? (Don't waste your time looking. After all, I haven't said it's cracked yet.) It's some sort of non-standard, proprietary plug. Sorry, but I couldn't find anything under proprietary plug. grin I'm not sure what to use, and I've long wondered about the difference between tuner cleaner and contact cleaner. When she went to the cell phone store, he used Keyboard Cleaner. I think the plastic is really clean now I wouldn't use either type of "cleaner". Some 90% alcohol to disolve out any grease left by the previous attempt to use tuner/contact cleaner. I don't know what was used the first time. I wasn't involved. Right now I don't even remember if she did it herself or she went to a phone store. If that doesn't work, tear the phone apart. I'd like that, but she may not trust me. |
#5
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What is the difference between tuner cleaner and contact cleaner?
On Mon, 22 Aug 2011 20:34:51 -0400, micky
wrote: Yeah. It's a Sony Ericson W580i. http://www.sonyericsson.com/cws/products/mobilephones/overview/w580i?lc=en&cc=us If the connector appears to be cracked, replace the connector. There are plenty of used cell phone dealers around. http://www.recellular.com/find/ http://www.recellulartoo.com/ http://www.dotcells.com/ etc... Plenty on eBay. New for $90. Used for $35 to $50. Some auctions at low prices. Search for W580i. I'll be able to find one for sale? (Don't waste your time looking. After all, I haven't said it's cracked yet.) In this case, probably not. Here's the connector: http://i01.i.aliimg.com/img/pb/174/796/331/331796174_570.jpg What's probably happening is that the gold contacts in the phone have developed a layer of crud on them, and the sharp points on the plug are not penetrating the crud. Solution... remove the crud. I have several old phones with similar connectors. What I used was a tiny screwdriver or plastic pick as a scraper. Some household cleaner (i.e. 409), and a pair of overkill magnifying glasses so I can see what I'm doing. The trick is to scrape off the crud until you see the gold underneath, without scraping off the gold, or destroying the plastic insulation between contacts. Start with a toothpick. Graduate to a metal scraper if that doesn't work. You'll probably also find a substantial amount of pocket lint inside the connector, which needs to be removed BEFORE attacking. I don't know what was used the first time. I wasn't involved. Right now I don't even remember if she did it herself or she went to a phone store. The phone store usually has a spray can of something. I've never bothered to check what they use. If that doesn't work, tear the phone apart. I'd like that, but she may not trust me. I wouldn't trust you with my phone either. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#6
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What is the difference between tuner cleaner and contact cleaner?
On Mon, 22 Aug 2011 20:33:41 -0400, "Charlie"
wrote: "Jeff Liebermann" wrote in message .. . On Mon, 22 Aug 2011 12:54:32 -0400, micky wrote: Any particular cell phone? Not all EP connectors are the same. If in doubt, use an air hose to remove the accumulated lint and filth. If the contacts are exposed, sharpen a pencil eraser to a point and use it to clean the contacts. Then use the air hose to remove the crud. I was taught many years ago NOT to use a rubber eraser to clean contacts. The theory was that the rubber might leave a sulfur containing residue that will encourage corrosion. You may agree or disagree but prudence (a fine girl) dictates caution. I just googled for "contact cleaning eraser sulfur" and found no warnings or horror stories. Sulfur is not going to attack the gold. It might coat it, but then it has to leak out of the eraser in liquid form, such as in the form of sulfuric acid. That's not going to happen. If the gold contacts develop a hard black coating, then some sulfur was transfered. However, I've been using Pink Pearl erasers on gold edge connectors for ummm... too many years, and have never seen the problem. I wash off any residue with whatever solvent or cleaner falls off the shelf (usually 409). I do NOT use an ink eraser, or highly abrasive eraser that might rub off some of the gold plating which is only 25-50 millionths thick. There are those that favor DeOxit or Cramoline. I've had good luck with both of those, but not when the contacts are exposed to a filthy environment, as is typical for the exposed contacts on a cell phone. The residue picks up the dust and lint, and turns them to crud. For cell phones, I suggest using something that leaves no residue (alcohol). Connector cleaning by Apple Computah: http://support.apple.com/kb/TA20318?viewlocale=en_US -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#7
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What is the difference between tuner cleaner and contact cleaner?
On Aug 22, 12:54*pm, micky wrote:
What is the difference between tuner cleaner and contact cleaner? The only specific characteristic of "tuner cleaner" that I'm aware of is that it's (was?) formulated to not be aggressive on plastics. Back when mechanical tuners were made, they generally had phenolic wafers to hold the contacts, but some used plastic or had plastic elsewhere in the tuner. Tuner cleaners were generally pumped into various openings in the tuner in order to flood and shotgun the whole assy, rather than disassemble the tuner and apply the cleaner only to the actual contacts. Other contact cleaners may or may not be tough on plastics. |
#8
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What is the difference between tuner cleaner and contact cleaner?
In article ,
micky wrote: What is the difference between tuner cleaner and contact cleaner? A friend needs the connection between her earphones and her cell phone cleaned. She gets intermittent loss of sound, and iiuc wiggliing the plug affects this sound But I don't think the solder connections are bad, sine she had it cleaned a year ago for the same problem and it worked well until a month ago. It's some sort of non-standard, proprietary plug. I'm not sure what to use, and I've long wondered about the difference between tuner cleaner and contact cleaner. When she went to the cell phone store, he used Keyboard Cleaner. I think the plastic is really clean now Thanks DeOxIt is one of the best contact cleaners available. A shot of that in the female followed by 30 seconds of gentle copulation should take care of it. |
#9
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What is the difference between tuner cleaner and contact cleaner?
Charlie wrote:
"Jeff Liebermann" wrote in message ... On Mon, 22 Aug 2011 12:54:32 -0400, micky wrote: Any particular cell phone? Not all EP connectors are the same. If in doubt, use an air hose to remove the accumulated lint and filth. If the contacts are exposed, sharpen a pencil eraser to a point and use it to clean the contacts. Then use the air hose to remove the crud. I was taught many years ago NOT to use a rubber eraser to clean contacts. The theory was that the rubber might leave a sulfur containing residue that will encourage corrosion. You may agree or disagree but prudence (a fine girl) dictates caution. Use a plastic eraser (used for erasing marks from mylar sheets). These are available at drafting and art supply stores. -- Paul Hovnanian ------------------------------------------------------------------ There was a man who entered a local paper's pun contest. He sent in ten different puns, in the hope that at least one of them would win. Unfortunately, no pun in ten did. |
#10
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What is the difference between tuner cleaner and contact cleaner?
WD-40 works as well.
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#11
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What is the difference between tuner cleaner and contact cleaner?
On 24/08/2011 22:39, Charles wrote:
WD-40 works as well. Uhho flame alert! |
#12
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What is the difference between tuner cleaner and contact cleaner?
On Wed, 24 Aug 2011 17:39:06 -0400, Charles wrote:
WD-40 works as well. A pretty shabby troll attempt. [WD-40 should be relegated to cold war era Russian farm equipment alone.] |
#13
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What is the difference between tuner cleaner and contact cleaner?
Allodoxaphobia wrote:
On Wed, 24 Aug 2011 17:39:06 -0400, Charles wrote: WD-40 works as well. A pretty shabby troll attempt. [WD-40 should be relegated to cold war era Russian farm equipment alone.] the russians lacked food in the cold war era. |
#14
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What is the difference between tuner cleaner and contact cleaner?
On 26/08/2011 01:36, Cydrome Leader wrote:
wrote: On Wed, 24 Aug 2011 17:39:06 -0400, Charles wrote: WD-40 works as well. A pretty shabby troll attempt. [WD-40 should be relegated to cold war era Russian farm equipment alone.] the russians lacked food in the cold war era. That'd be because they didn't have any WD40 |
#15
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What is the difference between tuner cleaner and contact cleaner?
On Wed, 24 Aug 2011 17:39:06 -0400, "Charles"
wrote: WD-40 works as well. What; if I'd taken you seriously? Do you want me to damage my friend's cellphone,, jackass? |
#16
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What is the difference between tuner cleaner and contact cleaner?
Tuner cleaner might be designed to avoid damaging plastic parts in tuners,
whereas contact cleaner might be more "aggressive". I would get some red Cramolin (that's not what it's called any more -- can't think of the name) and thoroughly clean the plug. (You can also put a "wet" plug in the jack. The cleaner will migrate and at least partially clean the jack.) This removes the oxide, which might be what you need done. |
#17
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What is the difference between tuner cleaner and contact cleaner?
In article ,
William Sommerwerck wrote: Tuner cleaner might be designed to avoid damaging plastic parts in tuners, whereas contact cleaner might be more "aggressive". Some "tuner cleaner" I have used in years passed, also contained a light lubricant (mineral oil, I think). Mechanical UHF television tuners contained both rotary switches, and a whole bunch of tunable reactive components (slug-tuned inductors?) which benefited by a bit of lubrication. I would get some red Cramolin (that's not what it's called any more -- can't think of the name) and thoroughly clean the plug. I understand that some Cramolin products are still available from the original manufacturer in Germany. Caig Labs used to import Cramolin into the U.S. and sell it under their label. In more recent years, they've been selling DeOxIt, which is a similar product (but not manufactured by the makers of Cramolin). The makeup of Cramolin and DeOxIt products is, I believe, a trade secret. I've read several reports which suggest that both types of products contain oleic acid as the (or an) active ingredient, as this has a long history of use as a metal and contact cleaner. -- Dave Platt AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |
#18
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What is the difference between tuner cleaner and contact cleaner?
On Sat, 27 Aug 2011 21:49:49 -0700, (Dave Platt)
wrote: I understand that some Cramolin products are still available from the original manufacturer in Germany. This explains the tangled history of Cramolin: http://siber-sonic.com/electronics/caig.html More useful info on Cramolin or whatever it's called this week: http://bach.pgm.com/pipermail/proaudio/2009-November/008411.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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