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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Laptop PSU cord repair
The cord on the laptop's PSU plug (the small, hollow, cylindrical shape
that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. New PSUs are available from Hong Kong on ebay for a fiver but past experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? TIA -- F |
#2
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Laptop PSU cord repair
"F" news@nowhere wrote in message ... The cord on the laptop's PSU plug (the small, hollow, cylindrical shape that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. New PSUs are available from Hong Kong on ebay for a fiver but past experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? They come in quite a range of sizes but are pretty easy to find. Maplins does quite a wide range: http://www.maplin.co.uk/Module.aspx?ModuleNo=43084 All solder types |
#3
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Laptop PSU cord repair
In message , Norman Billingham
writes "F" news@nowhere wrote in message ... The cord on the laptop's PSU plug (the small, hollow, cylindrical shape that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. New PSUs are available from Hong Kong on ebay for a fiver but past experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? They come in quite a range of sizes but are pretty easy to find. Maplins does quite a wide range: http://www.maplin.co.uk/Module.aspx?ModuleNo=43084 All solder types Hmm, Maplin were unable to find anything to match my old IBM laptop and I'm very doubtful about the plugs used in some Dell models. With the IBM, I ended up cutting away the moulded outside of the plug and peeling it all off, then cutting back the cable to beyond the break and resoldering. Then I think I used hot-melt glue to encapsulate the repair. It looked awful, but worked. I asked somewhere, but no-one seemed to know a source for any decent semi-flexible reasonably cheap encapsulation material. -- Bill |
#4
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Laptop PSU cord repair
On Thu, 9 Apr 2009 14:11:20 +0100, Bill wrote:
I asked somewhere, but no-one seemed to know a source for any decent semi-flexible reasonably cheap encapsulation material. Self amalgamating tape. Can be built up around the plug and tailed off with less layers along the cable to give progressive strain relief. -- Cheers Dave. |
#5
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Laptop PSU cord repair
On Apr 9, 1:13*pm, "Norman Billingham" norman.at.tumulus.org.uk
wrote: "F" news@nowhere wrote in message ... The cord on the laptop's PSU plug (the small, hollow, cylindrical shape that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. New PSUs are available from Hong Kong on ebay for a fiver but past experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? They come in quite a range of sizes but are pretty easy to find. *Maplins does quite a wide range: http://www.maplin.co.uk/Module.aspx?ModuleNo=43084 All solder types No good if you have a recent, e.g., IBM laptop, nor, I suspect, a number of other manufacturers. Not everyone uses ordinary "DC" connectors these days. MBQ |
#6
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Laptop PSU cord repair
In message , Norman Billingham
writes They come in quite a range of sizes but are pretty easy to find. Maplins does quite a wide range: http://www.maplin.co.uk/Module.aspx?ModuleNo=43084 All solder types Be aware, the ones sold by Maplin usually aren't rated for the sort of current a laptop can use (although they will work), RS do some high current ones but they cost a bit more and it's a limited range, not all sizes are available. -- Clint Sharp |
#7
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Laptop PSU cord repair
On Thu, 9 Apr 2009 13:13:01 +0100, "Norman Billingham"
norman.at.tumulus.org.uk wrote: They come in quite a range of sizes but are pretty easy to find. Maplins does quite a wide range: A number of laptops, Dell in particular use what looks like a normal DC power plug of that type but are in fact three pole connectors, the third wire used for measuring battery temperature. |
#8
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Laptop PSU cord repair
Peter Parry wrote:
A number of laptops, Dell in particular use what looks like a normal DC power plug of that type but are in fact three pole connectors, the third wire used for measuring battery temperature. As far as I know, and experience of folks who've been through the mill with trying to use 3rd party supplies, the third wire is there to aid the laptop in determining if the adaptor is a genuine (and judged safe) manufacturer approved adaptor. There is an ID chip built into the adaptor; Battery charging is refused in the laptop if the adaptor hasn't been recognised (or the third pole connector in the middle of the connector has fractured). If battery temperature monitoring has been added, I'd suggest that's a very recent addition to combat the uproar about restrictive practices on accessory supply. -- Adrian C |
#9
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Laptop PSU cord repair
"F" news@nowhere wrote in message ... The cord on the laptop's PSU plug (the small, hollow, cylindrical shape that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. New PSUs are available from Hong Kong on ebay for a fiver but past experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? TIA -- F How about buying the £5 replacement, and just using the cable off it? Mat |
#10
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Laptop PSU cord repair
On 09/04/2009 15:13 Mat C wrote:
How about buying the £5 replacement, and just using the cable off it? Thanks, had thought of that but the cable in question is fixed into the adaptor brick. -- F |
#11
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Laptop PSU cord repair
On Fri, 10 Apr 2009 22:55:18 +0100, F news@nowhere wrote:
On 09/04/2009 15:13 Mat C wrote: How about buying the £5 replacement, and just using the cable off it? Thanks, had thought of that but the cable in question is fixed into the adaptor brick. Just chop it off and join the relevant leads together with solder and heat-shrink. -- Frank Erskine |
#12
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Laptop PSU cord repair
New PSUs are available from Hong Kong on ebay for a fiver but past
experience of cheap goods from HK hasn't been good and I'm concerned that the adaptor brick might damage the laptop with, for example, poor voltage regulation. I've usually found that the plugs fail on the cheap ones from China Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? I've never found a supplier for the plugs on my Acer laptops (DC power plug 5.5 x 1.7). Al. |
#13
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Laptop PSU cord repair
In message , Al
writes I've usually found that the plugs fail on the cheap ones from China I've also found some very 'odd' things when cheap rip off PSUs are used, like the battery not charging properly or the laptop refusing to power on, one hung every time a USB device was plugged in whilst the rip-off adapter was in use! The first question asked whenever a client had a charging or other power related problem was if they had the original PSU. -- Clint Sharp |
#14
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Laptop PSU cord repair
On 09/04/2009 20:49 Clint Sharp wrote:
I've usually found that the plugs fail on the cheap ones from China I've also found some very 'odd' things when cheap rip off PSUs are used, like the battery not charging properly or the laptop refusing to power on, one hung every time a USB device was plugged in whilst the rip-off adapter was in use! Thanks, that pretty much confirms my worries about the HK sourced replacements. -- F |
#15
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Laptop PSU cord repair
F wrote:
Is it possible to repair the plug? If I cut the cable, are spares available to solder/screw on? Which laptop make / model? -- Adrian C |
#16
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Laptop PSU cord repair
On 09/04/2009 18:20 Adrian C wrote:
Which laptop make / model? Toshiba Equiium. -- F |
#17
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Laptop PSU cord repair
On 9 Apr, 13:05, F news@nowhere wrote:
The cord on the laptop's PSU plug (the small, hollow, cylindrical shape that plugs into the side of the laptop) is fraying were it enters the plug. It's possible to manoeuvre the cord to get the laptop to charge but it's going to fall apart soon. What laptop is it? Got a pic of the connector? I've got a couple of spare PSU's, the cable at least may be of use to you. Steven |
#18
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Laptop PSU cord repair
On 10/04/2009 09:01 wrote:
What laptop is it? Model name: Toshiba Equium M70-173 Model number: PSM77E-002002AV Got a pic of the connector? http://www.spinningweb.f9.co.uk/PSU/Laptop-PSU.jpg If it looks a little odd that's because I used the 'lump' on the cable to prop the brick up! I've got a couple of spare PSU's, the cable at least may be of use to you. Thanks. I'll open up the plug and get back to you. -- F |
#19
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Laptop PSU cord repair
F wrote:
On 10/04/2009 09:01 wrote: What laptop is it? Model name: Toshiba Equium M70-173 Model number: PSM77E-002002AV OK, that plug is ... interior diameter: 2.5 mm external diameter: 5.5 mm and in this application is required to reliably carry 3Amps. From your picture looks like a long shaft - 14mm do? Order Code HH63T at Maplin, 99 pence. Free delivery up to this Tuesday, or your local shop. - then it's a soldering iron job if up to it... -- Adrian C |
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