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Search: Posts Made By: seanc
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-22-2020, 10:58 AM
Replies: 14
Views: 648
Posted By seanc
Re: DELL Vorstro 3550 Battery not detected

I can't remember I'm afraid. Too much time between discovering it and fixing.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-21-2020, 01:24 PM
Replies: 8
Views: 476
Posted By seanc
Re: Dell E5470 short in processor? LA-C831P

I'm unsure of which points to check - any suggestions?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-21-2020, 01:10 PM
Replies: 14
Views: 648
Posted By seanc
Re: DELL Vorstro 3550 Battery not detected

This might not be the case with you, but I had something similar on an E6540 I just fixed.
It worked fine on battery and on power and both together, but wouldn't charge the battery.

I found the...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-18-2020, 07:57 AM
Replies: 8
Views: 476
Posted By seanc
Re: Dell E5470 short in processor? LA-C831P

I went over the board again today and noticed that the replacement SIC530 had a ground short on a pin that should have no connectivity.
I replaced it and a capacitor next to it (it looked tested...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-16-2020, 01:23 PM
Replies: 8
Views: 476
Posted By seanc
Re: Dell E5470 short in processor? LA-C831P

Replaced PU603 on the second board, same symptoms unfortunately, turns on, then off.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 01:06 PM
Replies: 8
Views: 476
Posted By seanc
Re: Dell E5470 short in processor? LA-C831P

I'll replace PU603 on the second board with another new one and see what happens... the first just turned on for a second and then off.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 12:12 PM
Replies: 8
Views: 476
Posted By seanc
Re: Dell E5470 short in processor? LA-C831P

Between gnd and vswh 03.5ohms on the 200 ohms setting - admittedly I've done most of my testing on the 2000 ohms setting where it just shows 003. Happy to be proven wrong, especially if it's because...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-15-2020, 11:50 AM
Replies: 8
Views: 476
Posted By seanc
Dell E5470 short in processor? LA-C831P

Hi all,

Reaching out for any thoughts as I'm stumped.

I have two identical failed laptop motherboards. Both sport an Intel i7-6820hq.

Both boards failed in the same way, just went 'dead'...
Forum: Troubleshooting Audio Equipment 01-08-2020, 03:15 PM
Replies: 2
Views: 421
Posted By seanc
Re: Logitech Z5500 No Sound (Bad control pod help)

Th3_uN1Qu3 knows some stuff about these. There was a great 'hacking' and mod community as well.

I repaired one set, replacing all the caps in the sub and finding a used control pod, otherwise it...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-07-2019, 11:26 AM
Replies: 3
Views: 398
Posted By seanc
Re: Finding shorts - can a 12v 1a PSU (from a modem etc) be used?

Thanks for the responses guys.
I will look to invest in an adjustable lab power supply.

In my usage of the 12v 1a PSU, I was intending to use it where there is usually 19v 3a, in order to provide...
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 07-03-2019, 01:01 PM
Replies: 3
Views: 398
Posted By seanc
Finding shorts - can a 12v 1a PSU (from a modem etc) be used?

Hi all,

I've got a couple of laptop motherboards with shorts, but I don't have a bench power supply yet.

The one I'm working on right now is somewhat disposable.
It's a Compaq CQ58 (AMD based)...
Forum: Troubleshooting Audio Equipment 06-23-2019, 09:16 AM
Replies: 13
Views: 917
Posted By seanc
Re: NAD C320BEE - Bad capacitors?

Hi,

What you will probably notice when looking at the capacitors is that most of the casing will be discoloured. When tested, I found most of the capacitors were not up to spec.

I completely...
Forum: Troubleshooting Game Consoles & Other Weird Devices 06-16-2019, 12:24 PM
Replies: 19
Views: 710
Posted By seanc
Re: Dead hand drier autopsy - motor discussion

http://aikehanddryer.sell.everychina.com/p-99732028-seche-mains-french-jet-double-hand-dryer-jofel-hand-dryer.html
Forum: Troubleshooting Power Supplies and Power Supply Design 10-28-2018, 10:54 AM
Replies: 4
Views: 668
Posted By seanc
Re: UniFi Switch 24 250W power supply

I'd be interested in seeing someone fix one of these.
I know of quite a few in service, so it's a bit concerning. Shame your switch is a few thousand miles away, else I'd have a go.
Forum: Troubleshooting & Designing Networks 10-14-2018, 07:50 AM
Replies: 2
Views: 753
Posted By seanc
Re: No shares within a workgroup appearing

SMB 1 is disabled by default with build 1803.
Access to C$ or admin$ is also disabled unless you modify localaccounttokenfilterpolicy....
Forum: General Electronics Technical Discussion 10-06-2018, 09:21 AM
Replies: 11
Views: 1,513
Posted By seanc
Re: September equipment offer (u.k.)

While we're on the subject - can anyone recommend a hot air station?
Duratool have one big unit that's an iron and hot air, or they have a separate hot air station, or other brands? Cheaper is...
Forum: General Electronics Technical Discussion 09-28-2018, 01:41 AM
Replies: 11
Views: 1,513
Posted By seanc
Re: September equipment offer (u.k.)

Thanks for reminding me that my Maplin badged soldering station is actually a Duratool, so I can get more soldering iron tips!
Now if only I could get round to fixing the temperature buttons so I...
Forum: General Computer & Tech Discussion 09-25-2018, 12:33 PM
Replies: 13
Views: 1,007
Posted By seanc
Re: Seagate Barracuda 500gb 3 1/2" hardrive faulty

It's not often I find someone in the UK on these forums...if you don't mind paying for recovery, the guys linked below will likely be able to retrieve your data, assuming there is no damage to the...
Forum: Troubleshooting Audio Equipment 03-14-2018, 03:40 PM
Replies: 12
Views: 1,890
Posted By seanc
Re: Logitech Z5500 - distorted digital audio

An update.

Original control pod (PID 52x) I could not get out of its coma. It persisted with dim red led or other strange things if it did turn on.
Butchered control pod (PID 8xx) i put back...
Forum: Troubleshooting Power Supplies and Power Supply Design 02-05-2018, 02:29 AM
Replies: 34
Views: 6,222
Posted By seanc
Re: ADi T8053 LCD Color Terminal - PSU output high at startup

Glad you found the issue with the 5v, it's surprising what a faulty cap can do.

With regards to the DOS issue, maybe consider DOSBox? It will run on top of any OS and most old games seem to play...
Forum: Troubleshooting Computer Displays 01-07-2018, 12:16 PM
Replies: 50
Views: 2,773
Posted By seanc
Re: Viewsonic vx2235wm colors washed out after power board recapping

I have one of these at work, I think I recapped it around 2011 or 2012, still going strong on a colleagues desk.
Do you want to know its values?
From your description it sounds like you press up,...
Forum: Troubleshooting & Designing Networks 12-16-2017, 03:00 PM
Replies: 19
Views: 2,768
Posted By seanc
Re: Reliable manageble poe switch

Continue with Ubiquiti?
US‑8‑150W
US‑16‑150W
US‑24‑250W
US‑24‑500W
US‑48‑500W
US‑48‑750W

You need an on-premise controller (which can link to a free cloud controller portal) or to link...
Forum: Troubleshooting Audio Equipment 11-09-2017, 01:56 PM
Replies: 12
Views: 1,890
Posted By seanc
Re: Logitech Z5500 - distorted digital audio

Will do!
I've only been in there to have a look, not done any work.
Interestingly, I powered it all on again, pod came to life OK and then the sub started making popping noises. Also noticed a 50hz...
Forum: Troubleshooting Audio Equipment 11-06-2017, 04:31 PM
Replies: 12
Views: 1,890
Posted By seanc
Re: Logitech Z5500 - distorted digital audio

I thought I was done with these.
Flipped on the sub woofer today and the pod was dead.
Did it again and the LED came on dim, a few more times and it came to life....

Starting to wonder if I...
Forum: Troubleshooting Audio Equipment 11-01-2017, 05:50 PM
Replies: 12
Views: 1,890
Posted By seanc
Re: Logitech Z5500 - distorted digital audio

Ah yes, voltage regulator - I should know that, my mistake. Transistor was the first word I could think of.

Either way, thank you for your help, without you I'd be nowhere. Hopefully the "thicker"...
Showing results 1 to 25 of 500

 
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