Fix an LCD telly

[clivvy]

so...can anyone do this, or do it easily? If so, ive got one that needs fixing-the picture generally works, but after a short time (if at all) the picture starts to get all pixelated, like the pixels are turning off? so its a weird picture, then perhaps lines across the screen etc. its liek this no matter what signal you put through it, so I suspect some sort of video processor issue, i dunno, anyway, if anyone can fix these, then they can have it, otherwise im skipping it this weekend. Its 32" Hitachi HD ready, was nice whilst it worked. its about 4 or 5 year old i believe, so not new, i got it from work, and now i know why i got it for free!

[Fez_uk]

Have a look online it could be a common problem for the TV and a new part may just fix it.

[briggie]

without looking at it personally , its difficult to exactly determine the problem , but the most common problem on lcd sets is " pixel lag " its determined by the refresh rate , another common problem ( as with most intermittant electronic problems ) is the " dry joint syndrome "

[Thomas-the-Terrano2]

probably bin it mate.

at that age.

at work we dont repair now unless they are in warranty, or have extend warranty.

ie dont do fixed price, not cost effective.

and many of warranty ones are deemed beyond economical repair and written off.


simplified production often means few components, but in turn these are then
dearer or not available.

joys of our throw a way culture and drive to bring new prices down.

then theres the labour, ok if can dabble yourself. good luck.

[briggie]

Originally Posted by Thomas-the-Terrano2

probably bin it mate.

at that age.

at work we dont repair now unless they are in warranty, or have extend warranty.

ie dont do fixed price, not cost effective.

and many of warranty ones are deemed beyond economical repair and written off.


simplified production often means few components, but in turn these are then
dearer or not available.

joys of our throw a way culture and drive to bring new prices down.

then theres the labour, ok if can dabble yourself. good luck.

i was trained to diagnose/repair down to component level , but these days engineers are basically board swappers due to the size/cheapness of mass producted components

[briggie]

stick it on e bay ... someone may have a dabble

[rustic]

Originally Posted by briggie

i was trained to diagnose/repair down to component level , but these days engineers are basically board swappers due to the size/cheapness of mass producted components

Being trained to component level without circuit diagrams these days is no longer posssible without diagnostic equipment as well.
Switch mode power supplies are usually the items that break down first.
The only way for the home "mechanic/technician" is if you have the same tv and as Briggie says, board swap until you find the faulty sub component.
When buying electronic equipment it could be a good idea to buy two of the same unit, then you have a source of components when both fail.

These days the product you buy today is already obsolete, newer models are already in production.
Modern electronics is not made to be pulled apart any more.

When was the last time you replaced a kettle element, or an element for an electric iron? When a kettle costs £5 would you want to?

When a TV sells for £200, the retailer probably gets it for say £70-£100
There are inport duties to pay, development costs, shipping etc.
The actual "cost" including all components, Labour, packaging is probably in the region of £20-£30

I worked for a company years ago that made electronic equipment.
A high street retailer sold it for £15 we sold it to them for less than £5, the actual cost to us was £0.80. Every one was happy with the sale. Warrenty no questions asked, replace and skip the old one. Even the phone call to discuss the warrenty would be more than the item cost.

As engineers if we could save the cost of a resistor per unit it was cost effective since you made 10,000+ units.

Throw away society, and it is our fault, we choose to buy the cheapest, just have a look where they were made.
Even if you find an item made in UK, it probably says.. " Assembled in UK" from clip together components. Many items now have "Made in Europe"

Non of this can help the "Balance of Payments" for the UK

[clivvy]

cheers guys, the input is what i expected. I certainly cant fixit myself, an dyeah, its probably just the video processor board thats gone, but its just not worth the hassel so its off to the skip now!

[Deleted account DD]

Id bin it we've got one about 4 year old still going strong and one thats about 4 months old (from shop that is) and theres no comparison in picture quality, as TTT2 said its probably just not a viable option to repair.

On the subject of board swappers we had just that with the british gas bloke who came out (just before we cancelled the service deal )

He didnt know and couldnt measure outputs and voltages on the various points. All he did over several visits was test by replacement. He reckoned he has three unserviceable versions of the same control board for the boiler with him.

His face was a picture when my missus asked him if maybe something was faulty and knacking a component on the board every time he shoved the new one in

[rustic]

Originally Posted by daved

His face was a picture when my missus asked him if maybe something was faulty and knacking a component on the board every time he shoved the new one in

More likely the fault was elsewhere, and he blamed his stock rather than his first incorrect diagnosis.
It's no wonder you end up with a bill for nearly the price of a new boiler, it may have only been a dry joint on one of the boards after all.

[jims-terrano]

I used to work with an ex TV Repair man. He once went out to a TV and replaced the old push button tuner but still didn't work. He went through another two out of his car before finally phoning back to the office to say he had 3 DOA's. Only then was he told this had happened

http://en.wikipedia.org/wiki/Emley_M...itting_station



Jim

PS I hear the birth rate went up around Christmas time that year

[Deleted account DD]

Originally Posted by rustic

More likely the fault was elsewhere, and he blamed his stock rather than his first incorrect diagnosis.
It's no wonder you end up with a bill for nearly the price of a new boiler, it may have only been a dry joint on one of the boards after all.

They really were crap. The missus took out a whatever per month to cover everything. problem was they couldnt decide what was wrong. In the end we binned the boiler which was a crock (some italian thing) and got a bosch worcester put in. That thing is the mutts bits AND an independent decent plumber type looks after it for us

[supergnome]

Have you got contents insurance. wink, wink.

[rustic]

Originally Posted by supergnome

Have you got contents insurance. wink, wink.

Contents insurance on the contents of a boiler.... hmmmm...3 gallons of rusty old water.....