Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
To post in this sub-forum you must have made 100 posts or have Trust status or have completed our ID Verification



martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

#92950 9-Nov-2011 21:13
Send private message

I just got myself a Dell 19" 931BW in with a whole load of bits and pieces but it wont power on.

Google tells me its more than likely just a capacitor which has blown, but replacing that sort of thing is a little out of my league.

Does anyone know of somewhere in Wellington I could get this looked at and hopefully repaired ?

Cheers
 

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #543344 9-Nov-2011 21:21
Send private message

Ive obviously checked google for places to go to, I was hoping someone might have a recommendation for work they may have had done. I dont fancy spending $70 to find out it cant be fixed.

Unless of course someone is a dab hand at this and fancies some beer in return ;)

 
 
 

Shop Mighty Ape for electronics, games, computers books and more (affiliate link).
Niel
3267 posts

Uber Geek

Trusted

  #543429 10-Nov-2011 05:55
Send private message

I would do it if you were in Auckland. Those type of faults are usually easy and common. I've bought a Dell 15" for next to nothing and fixed it. Somewhat hard to open, but easy to fix. Capacitors dry out, very common.




You can never have enough Volvos!


martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #543665 10-Nov-2011 14:01
Send private message

Thanks Niel,

I may just give it a bash myself, Ive got nothing to lose really. Its been 25 years since I picked up a soldering iron in anger but it may be worth a crack.



mattwnz
19475 posts

Uber Geek


  #543753 10-Nov-2011 15:02
Send private message

martyyn: I just got myself a Dell 19" 931BW in with a whole load of bits and pieces but it wont power on.

Google tells me its more than likely just a capacitor which has blown, but replacing that sort of thing is a little out of my league.

Does anyone know of somewhere in Wellington I could get this looked at and hopefully repaired ?

Cheers
?


Are you sure it is a dell? That code brings up samsung for me.
Anyway I picked up a dell 19 inch ex lease monitor from oneof these second hand computer recycling places for $25 and in full working order, so I don't think they are worth repairing, unless you can do it yourself.

martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #543758 10-Nov-2011 15:07
Send private message

Stupid me, yes its a Samsung !

I got it with a couple of boxes of computer bits and pieces for a pittance, so Im only interested in fixing it if it will cost pennies/beer. Which is why Im thinking of just ripping it open and having a crack myself. I have nothing to lose.



mattwnz
19475 posts

Uber Geek


  #543774 10-Nov-2011 15:21
Send private message

martyyn: Stupid me, yes its a Samsung !

I got it with a couple of boxes of computer bits and pieces for a pittance, so Im only interested in fixing it if it will cost pennies/beer. Which is why Im thinking of just ripping it open and having a crack myself. I have nothing to lose.




There is probably no harm opening it up, and looking at the boards to see if you can see anything visible that has blown. Capacitors can give you an electric shock, so be careful.

Niel
3267 posts

Uber Geek

Trusted

  #543880 10-Nov-2011 18:09
Send private message

Only the large fat mains capacitor might give you a shock, but it will self discharge in a minute or so.

Run your finger over the top of capacitors. If you are bulged up, they need replacement. Should be perfectly flat. Slight hint of bulge will still work, but clear bulge will not. The issue is usually finding the right value replacement.

If you find a bad cap you could mail the PCB to me and I can fix it for you (might just first have to check I can get the value in the same size can, some are not common). I've used a soldering iron for 25 years, comes with being an electronic engineer...




You can never have enough Volvos!




martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #544131 11-Nov-2011 09:17
Send private message

Wow, thanks for the offer Niel.

Ill take it apart this weekend and will let you know how I get on.


martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #544554 12-Nov-2011 12:28
Send private message

Well that looks simple enough. It took me longer to work out how to get the board out than it did to fire up the soldering iron and remove the blown capacitor. Its a Capxon 1000uf 16v and judging by google its rather common on the Samsungs.

Im off down to Jaycar to get another one and will chuck it in and cross my fingers :)

Niel
3267 posts

Uber Geek

Trusted

  #544572 12-Nov-2011 13:20
Send private message

You need to ask for a low impedance capacitor for a power supply, not the stock standard ones. Let me know if you want me to mail one to you.




You can never have enough Volvos!


martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #544575 12-Nov-2011 13:33
Send private message

Just back from Jaycar, the bloke was great. When I asked where to find them, he asked what I had and what I needed it for and gave me the low ESR one. Just waiting for the iron to heat up and hopefully it will all work again.

 

vinnieg
2260 posts

Uber Geek

Trusted

  #544576 12-Nov-2011 13:35
Send private message

Niel: You need to ask for a low impedance capacitor for a power supply, not the stock standard ones. Let me know if you want me to mail one to you.


Yeah Niel is right, get the black ones, not the blue ones


Also, if they don't have 1000uf in stock, get 1200 or 1500/1600uf in place of it

I know last time I was at Jaycar in Wellington they had run out of all 1000uf ones 




I have moved across the ditch.  Now residing in Melbourne as a VOIP/Video Technical Trainer/Engineer. 

martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #544577 12-Nov-2011 13:38
Send private message

What Ive ended up with are green just like the original. I picked the black one originally and they said it wasnt low ESR and I should be using one of the green ones.

It says 1000uf, 16v, +105C LOW ESR written on it, which matches the one I took out, although now I have them side by side the new one is a little taller
 

martyyn

1855 posts

Uber Geek

ID Verified
Subscriber

  #544582 12-Nov-2011 14:06
Send private message

After some of the worst solder joints in living memory, five minutes to put back together, then open it again to put in the screws Id forgotten and its all going again :)

Thanks for your help gang, Im stoked to have gotten it going again so easily and cheaply.


Niel
3267 posts

Uber Geek

Trusted

  #544676 12-Nov-2011 19:25
Send private message

Taller is usually lower ESR (equivalent series resistance), but naturally not that simple. The guys at Jaycar know electronics, the shop is owned by Soanar who is one of the large electronic component importers.

105 degree C is what is normally used for power supplies as they can run hot.

Glad you got sorted, so many good products get dumped due to a blown 15c capacitor (Jaycar probably charged you a bit more than 15c...).




You can never have enough Volvos!


 1 | 2
View this topic in a long page with up to 500 replies per page Create new topic





News and reviews »

InternetNZ Releases Internet Insights 2023
Posted 20-Feb-2024 10:31


Seagate Adds 24TB IronWolf Pro Hard Drives for Multi-user Commercial and Enterprise RAID Storage Solutions
Posted 19-Feb-2024 16:54


Seagate Skyhawk AI 24TB Elevates Edge Security Capacity and Performance
Posted 9-Feb-2024 17:18


GoPro Releases Quik Desktop App for macOS and Introduces Premium+ Subscription Tier
Posted 9-Feb-2024 17:14


Ring Introduces New Ring Battery Video Doorbell Pro
Posted 9-Feb-2024 16:51


Galaxy AI Transforms the new Galaxy S24 Series
Posted 18-Jan-2024 07:00


D-Link launches AI-Powered Aquila Pro M30 Wi-Fi 6 Mesh Systems
Posted 17-Jan-2024 20:02


Newest LG 4K Lifestyle Projector Doubles as Art Objet
Posted 9-Jan-2024 15:50


More LG Smart TV Owners Set To Enjoy the Latest webOS Upgrade
Posted 9-Jan-2024 15:45


Panasonic Announces the Z95A and Z93A With Fire TV Built In
Posted 9-Jan-2024 15:30


Amazon Echo Pop Review
Posted 8-Jan-2024 14:22


Samsung Tab S9 FE Review
Posted 17-Dec-2023 08:26


Year in Search: What Kiwis Searched for in 2023
Posted 12-Dec-2023 08:18


New Air Traffic Management Platform and Resilient Buildings a Milestone for Airways
Posted 6-Dec-2023 05:00


Logitech G Launches New Flagship Console Wireless Gaming Headset Astro A50 X
Posted 5-Dec-2023 21:00









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.







Backblaze unlimited backup