Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: Gaffers on 22 June 2018, 19:28:47

Title: TV electrical woes
Post by: Gaffers on 22 June 2018, 19:28:47
Looks like it's my turn for some electrical shenanigans.  SEG TV bought in Germany 11 years ago, was when full HD was pretty new so I spent quite a bit on it even tax free.  I always bemoaned how I shouldn't have bought german because the bloody thing will last forever so now a year before we move to the US and have to replace most of our electrical devices it decides to go 'arris over apex.

Basically it stays on standby just fine, you can then turn it on and it works perfectly for about 10 minutes at which point it will flicker and die before returning to standby.  Ad nauseum.  The time it stays on is more or less the same every time so I am thinking capacitors rather than a dry solder joint.  As I on the right track?
Title: Re: TV electrical woes
Post by: dave the builder on 22 June 2018, 19:49:14
Is it worth giving it a blast of air via the vents if you have a compressor ,10 years of dust ,overheating
heatsinks on triacs etc
done that before with a Conrac 32" screen with similar issue
(I used a CO2 fire extinguisher ,set unplugged from electricary, But I'm not recommending that as a method , ) still working  :y
Title: Re: TV electrical woes
Post by: Gaffers on 22 June 2018, 20:12:20
Good point. I'll be stripping the back off shortly to have a look so if there is dust I'll clear it.
Title: Re: TV electrical woes
Post by: Bigron on 22 June 2018, 21:21:33
Don't get that fire extinguisher out, get an aerosol can of freezer spray. It will have a straw delivery tube to direct the coolant precisely to isolate the faulty component more readily - and weighs less than an extinguisher!

Ron.
Title: Re: TV electrical woes
Post by: Gaffers on 22 June 2018, 21:22:52
Well the back is off ND yes there was a lot of dust on the vents but nothing has that telltale burnt smell so I don't think that is it.

There is a large capacitor on which the soldering looks very poorly done and the glue which holds it to the board has dried and come loose so it has been held by the solder joints since god knows when.

I'm going to let the capacitor completely discharge overnight, clean it up, wet the joints and re glue it. See if that does the job.
Title: Re: TV electrical woes
Post by: Sir Tigger KC on 23 June 2018, 01:26:26
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???
Title: Re: TV electrical woes
Post by: Gaffers on 23 June 2018, 08:27:14
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???

One day I shall be, yes.
Title: Re: TV electrical woes
Post by: TheBoy on 23 June 2018, 08:54:08
Given the age, visibly look at the electrolytic caps.

Its also possibly in the era of the start of lead free, which might prove challenging.
Title: Re: TV electrical woes
Post by: Gaffers on 23 June 2018, 09:21:18
Yup, the connection to the largest one on the power supply was very suspect.  I have cleaned it up and testing it now.  I think the capacitor itself is fubar but testing right now.
Title: Re: TV electrical woes
Post by: Gaffers on 23 June 2018, 10:02:22
So far so good. 45 minutes without issue whereas before 10 minutes would trigger a blackout.

I wonder how many otherwise fine electrical items get chucked out for the sake of someone actually doing a proper job in the first place?
Title: Re: TV electrical woes
Post by: Sir Tigger KC on 23 June 2018, 10:45:17
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???

One day I shall be, yes.

When my mate moved to the States a few years ago, he was determined to take his fancy coffee machine.  He ended up getting a transformer that was bigger than the coffee machine itself and hummed menacingly in the background while you were making a cuppa!  ;D
Title: Re: TV electrical woes
Post by: dave the builder on 23 June 2018, 10:50:49
we live in a throw away society
i do loads of repairs for family on items that are "dead " many of which are simple fixes .
it's much better for the environment if things are fixed
reduces landfill and the energy /resources required to make the replacement item
Title: Re: TV electrical woes
Post by: Gaffers on 23 June 2018, 11:08:14
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???

One day I shall be, yes.

When my mate moved to the States a few years ago, he was determined to take his fancy coffee machine.  He ended up getting a transformer that was bigger than the coffee machine itself and hummed menacingly in the background while you were making a cuppa!  ;D

There are some devices which are dual voltage and would work with a simple change of plug but then there is the CBA factor of getting out there combined with the cost.  No to mention the opportunity to get nice brand new shiny stuff :D

We have a small step down transformer for those items we have from America but which are 110 volts only.  It's small but blimey it's heavy.  If anyone ever breaks in to the house while I am there it will be my go to weapon.  A clout on the noggin from that and you'd be out for a week.
Title: Re: TV electrical woes
Post by: Doctor Gollum on 23 June 2018, 11:37:53
we live in a throw away society
i do loads of repairs for family on items that are "dead " many of which are simple fixes .
it's much better for the environment if things are fixed
reduces landfill and the energy /resources required to make the replacement item
Unfortunately this doesn't create demand for new shiny stuff that keeps people tied to their jobs (making/selling said shiny stuff) to pay for the shiny stuff etc etc ::)

Shiny makes the world work.
Title: Re: TV electrical woes
Post by: dave the builder on 23 June 2018, 12:13:06
we live in a throw away society
i do loads of repairs for family on items that are "dead " many of which are simple fixes .
it's much better for the environment if things are fixed
reduces landfill and the energy /resources required to make the replacement item
Unfortunately this doesn't create demand for new shiny stuff that keeps people tied to their jobs (making/selling said shiny stuff) to pay for the shiny stuff etc etc ::)

Shiny makes the world work.
the world maybe ,
we don't make much shiny stuff in the uk anymore  :'(
there is a market for the uk unwanted "dead" appliances etc
containers full go to Africa , stuff get's fixed there ,

Title: Re: TV electrical woes
Post by: Doctor Gollum on 23 June 2018, 13:17:30
Because* they don't make shiny things so there's no jobs to create income to buy shiny things so they take our rubbish for free and fix it... Or go without.

*I spent long enough at school to know not to start a sentence with 'because', but it seemed to be appropriate to the simplification of the complex subject matter. ::)
Title: Re: TV electrical woes
Post by: dave the builder on 23 June 2018, 13:36:51
Appears Gaffers shiny TV won't be going to Africa just yet
so ,no need to buy a shiny replacement (from china,as we don't make shiny TV stuff in the UK)
so someone will be without a bowl of rice for tea
I doubt the stock market will crash though  :P
Title: Re: TV electrical woes
Post by: Rods2 on 23 June 2018, 14:16:25
Had my local Linux sever go down yesterday afternoon. I initially thought the problem was one of the raid drives, but on trying to reboot, it fell over before it could init. the bios. :o I removed the motherboard and found one of the plastic pins had broken on an IC heatsink which had sprung the broken end away from the IC. My first thought was it has probably fried the chip, but as it is one of those nothing to lose situations a dab of new heatsink compound and an insulated bolt lightly done up to replace the plastic pin and it all booted up correctly. :y

Where the IC may have been heat stressed, I've bought a cheap 2nd hand like-for-like motherboard as a backup off ebay as the cost is negligible compared to potential lost time. I have been planning to build a new Linux server in the next 3 months with much more disc capacity, so I can now hopefully again do this at my convenience. :y
Title: Re: TV electrical woes
Post by: TheBoy on 23 June 2018, 16:45:59
But Rods2, Linux sucks.

Granted, it pays the mortgage and the bills, so I'm glad it sucks. But it still sucks.

Did I mention it sucks?
Title: Re: TV electrical woes
Post by: henryd on 23 June 2018, 19:52:30
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???

One day I shall be, yes.

When my mate moved to the States a few years ago, he was determined to take his fancy coffee machine.  He ended up getting a transformer that was bigger than the coffee machine itself and hummed menacingly in the background while you were making a cuppa!  ;D

There are some devices which are dual voltage and would work with a simple change of plug but then there is the CBA factor of getting out there combined with the cost.  No to mention the opportunity to get nice brand new shiny stuff :D

We have a small step down transformer for those items we have from America but which are 110 volts only.  It's small but blimey it's heavy.  If anyone ever breaks in to the house while I am there it will be my go to weapon.  A clout on the noggin from that and you'd be out for a week.

Shouldn't worry about that,quick trip to Walmart will sort the artillery ::)
Title: Re: TV electrical woes
Post by: Kevin Wood on 23 June 2018, 20:18:24
But Rods2, Linux sucks.

Granted, it pays the mortgage and the bills, so I'm glad it sucks. But it still sucks.

Did I mention it sucks?

Yeah, so much it keeps running until the hardware croaks. ;D
Title: Re: TV electrical woes
Post by: Gaffers on 23 June 2018, 21:06:48
...... so now a year before we move to the US and have to replace most of our electrical devices.

Are you having a sale at Chez Guff of all your useless (in the US) white goods and power tools etc?  ???

One day I shall be, yes.

When my mate moved to the States a few years ago, he was determined to take his fancy coffee machine.  He ended up getting a transformer that was bigger than the coffee machine itself and hummed menacingly in the background while you were making a cuppa!  ;D

There are some devices which are dual voltage and would work with a simple change of plug but then there is the CBA factor of getting out there combined with the cost.  No to mention the opportunity to get nice brand new shiny stuff :D

We have a small step down transformer for those items we have from America but which are 110 volts only.  It's small but blimey it's heavy.  If anyone ever breaks in to the house while I am there it will be my go to weapon.  A clout on the noggin from that and you'd be out for a week.

Shouldn't worry about that,quick trip to Walmart will sort the artillery ::)

Nah, I'll be going to cabellas or bass pro.

I was talking about here in the UK where I am always worried how the police will react when they pull me over and find half a dozen speargun in the boot.

The last one I had a tangle with tried to insist that my wife's perfectly legal and in date German driving license was not valid in the UK because she had been here more than a year.
Title: Re: TV electrical woes
Post by: TheBoy on 24 June 2018, 09:50:52
But Rods2, Linux sucks.

Granted, it pays the mortgage and the bills, so I'm glad it sucks. But it still sucks.

Did I mention it sucks?

Yeah, so much it keeps running until the hardware croaks. ;D
Real Unix does. Linux, even now, craps its pants under sustained pressure.

Granted, partly due to that 1990s Windows problem where almost anyone could write an app/driver, and hence is was a piece of privileged 3rd party code that was just poorly written/tested - this is where Linux is now.

I hardly ever have to touch our real Unix servers, other than applying security patches. Linux, on the other hand...

But I'm happy, keeps a roof over my head, like Windows did 15yrs ago :)
Title: Re: TV electrical woes
Post by: Kevin Wood on 24 June 2018, 10:42:49
But Rods2, Linux sucks.

Granted, it pays the mortgage and the bills, so I'm glad it sucks. But it still sucks.

Did I mention it sucks?

Yeah, so much it keeps running until the hardware croaks. ;D
Real Unix does. Linux, even now, craps its pants under sustained pressure.

Granted, partly due to that 1990s Windows problem where almost anyone could write an app/driver, and hence is was a piece of privileged 3rd party code that was just poorly written/tested - this is where Linux is now.

I hardly ever have to touch our real Unix servers, other than applying security patches. Linux, on the other hand...

But I'm happy, keeps a roof over my head, like Windows did 15yrs ago :)

You see, you and me, we're the same, but different.  ;)

I now go round telling people that I only use Windows machines when I'm being paid by the hour. They seem to get the hint and I no longer get a barrage of "this machine used to be really fast but now it's sluggish. Can you take a look? Oh, and the Norton site won't load." and "My printer driver doesn't seem to work any more". ::)

If a machine is really going to be flayed 24/7 then I'd argue that either operating system is a poor choice as they are too complex and general purpose right down to the kernel these days. Pare it down to what it needs to do and nothing more and it'll be much more stable. Embedded systems have been designed like this for years. I don't really understand why the internet hasn't followed.

.. but it also keeps a roof over my head, so we're both happy. :y
Title: Re: TV electrical woes
Post by: Rods2 on 24 June 2018, 19:14:00
A good operating system is unobtrusive, transparent reliable standard software interface to the computers hardware. Linux performs this function for me and tends to run from one year to the next, not only on my local server but with the hosting company my biggest client uses. :y

As load demand varies considerable on the main live Linux server due to seasonal variations and demand through several xml feeds it does very occasionally get overload, but as soon as demand slows it sorts itself out unlike the Windows Server the company also runs that when that is overloaded it is a PITA as it crashes. :(
Title: Re: TV electrical woes
Post by: Kevin Wood on 24 June 2018, 22:30:34
A good operating system is unobtrusive, transparent reliable standard software interface to the computers hardware. Linux performs this function for me and tends to run from one year to the next, not only on my local server but with the hosting company my biggest client uses. :y

As load demand varies considerable on the main live Linux server due to seasonal variations and demand through several xml feeds it does very occasionally get overload, but as soon as demand slows it sorts itself out unlike the Windows Server the company also runs that when that is overloaded it is a PITA as it crashes. :(

Yep. This is perhaps my biggest bugbear with Windows. All the fake plastic boobs they bolt on as eye candy and insist on changing every couple of years. ::)
Title: Re: TV electrical woes
Post by: Gaffers on 25 June 2018, 07:03:41
Well it was a short lived respite. Seems that it is something to do with using the Fire TV box as it lasted most of the day on the Nowtv box for the rugby. Switched back to the Fire TV box and 20 Mims later it was off again.

The switching between remotes was annoying so the TV has been replaced with a nice new shiny 4k jobby. The other TV is probably still OK so it will be listed on ebay, I would love to use it upstairs but I don't really have room unless I can find a suitable wall mount for such a large telly.