Home |
Search |
Today's Posts |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
keyboard space bar sticking despite efforts to stop it
Not really a circuit board, but still an electronic item of trouble. My
wireless keyboard space bar seems to want to stick, not completely but sometimes it just doesn't want to release. I have blown out the area all around the space bar with compressed air followed by 91% iso cleaning around it with cotton swabs, getting as deep as possible by thinning the swabs. Still wants to stick. Any other suggestions welcome. Thanks in advance. |
#2
Posted to sci.electronics.repair
|
|||
|
|||
keyboard space bar sticking despite efforts to stop it
On Saturday, 25 January 2020 17:22:08 UTC, James Reaper wrote:
Not really a circuit board, but still an electronic item of trouble. My wireless keyboard space bar seems to want to stick, not completely but sometimes it just doesn't want to release. I have blown out the area all around the space bar with compressed air followed by 91% iso cleaning around it with cotton swabs, getting as deep as possible by thinning the swabs. Still wants to stick. Any other suggestions welcome. Thanks in advance. half a drop of mineral oil NT |
#3
Posted to sci.electronics.repair
|
|||
|
|||
keyboard space bar sticking despite efforts to stop it
On Sat, 25 Jan 2020 12:22:04 -0500, James Reaper
wrote: Not really a circuit board, but still an electronic item of trouble. My wireless keyboard space bar seems to want to stick, not completely but sometimes it just doesn't want to release. I have blown out the area all around the space bar with compressed air followed by 91% iso cleaning around it with cotton swabs, getting as deep as possible by thinning the swabs. Still wants to stick. Any other suggestions welcome. Thanks in advance. Any hints as to the maker of the keyboard and model number? If unavailable, a description of the type of keyboard, or a photo of something similar as found on Google image search. My random guess(tm) is that it's an older Dell keyboard, such as one of these: https://www.google.com/search?q=dell+sk-8135+sk-8115+sk-8125&tbm=isch The SK-8135 happens to be my favorite keyboard. I'm therefore familiar with its benefits and its bad habits. A sticky space bar is one of them. The usual problem is one end of the stiff balance wire, that goes the length of the space bar, which allows the use of a single well for the key switch, has come loose at one end, causing the space bar to slide un-evenly into the square well with the switch at the bottom. This creates roughness and burrs around the square key well. It's difficult to see the burrs, but you can feel them with a finger or view them with a decent illuminated magnifier. You'll need to remove the space bar in order to clean and deburr the plastic well. Remove the two Alt keys on either side of the space bar. Use the proper keycap removal tool, or you'll break something: https://www.google.com/search?q=keycap+removal+tool&tbm=isch Then, remove the space bar by pulling up evenly on both ends. Take a photo of how the stiff wire thing is mounted or you may have problems putting it back together. My fix is to run a pocket knife over the mating surfaces and across the edges of the plastic box to remove any gouges and burrs. It doesn't take much of a burr to cause problems. Do NOT use a razor, sharp knife, Xacto knife, or anything sharp enough to add additional gouges in the plastic. Plastic razor scrapers also will work: https://www.acehardware.com/departments/paint-and-supplies/painting-tools-and-supplies/paint-scrapers/1380971 Please do NOT lubricate the plastic square well area with anything. All that does is attract dirt and dust, which will eventually turn to tar. Alcohol cleaning (70% or 91%) is fine as it removes any gunk and leaves no residue. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|