30-07-2015, 10:06 AM
The thing with flat screens is that although a lot of problems can be PSU related and often down the the Electrolytic caps, that’s not the full scenario.
To do the job properly engineers need to invest in a cradle, to support the set when dismantled, proper de-soldering stations need to be purchased to cover the many different types of chips used, these are not cheap by any means.
Blown FET's and other semiconductors pose their own problems as although you may be fitting the correct type of component, often the original has a different mask number from the replacement and the component can fail in a short time.
The next problem is the manufacturer, so many come from China and to obtain parts can be a nightmare, boards are sometimes the only way to effect a repair, often a costly way to go. then the customer refuses the estimate.
This then leads me to two things, firstly a deposit must be taken when the set comes in, If a customer drops in a set and has no cash I would never look at the set until he or she returned with the deposit. Often this weeds out the time-wasters and of course there are very few that would pay as much as £100 on a repair to an LCD.
These sets have more and more features by the week and many just see a new set as an upgrade anyway.
Its funny though so many now watch catch up on their phones and tablets, TV sales are down as is Licence numbers, the TV "trade" is gone nothing like it once was, so many though seem to think it will come back, that is just living in fools paradise!
To do the job properly engineers need to invest in a cradle, to support the set when dismantled, proper de-soldering stations need to be purchased to cover the many different types of chips used, these are not cheap by any means.
Blown FET's and other semiconductors pose their own problems as although you may be fitting the correct type of component, often the original has a different mask number from the replacement and the component can fail in a short time.
The next problem is the manufacturer, so many come from China and to obtain parts can be a nightmare, boards are sometimes the only way to effect a repair, often a costly way to go. then the customer refuses the estimate.
This then leads me to two things, firstly a deposit must be taken when the set comes in, If a customer drops in a set and has no cash I would never look at the set until he or she returned with the deposit. Often this weeds out the time-wasters and of course there are very few that would pay as much as £100 on a repair to an LCD.
These sets have more and more features by the week and many just see a new set as an upgrade anyway.
Its funny though so many now watch catch up on their phones and tablets, TV sales are down as is Licence numbers, the TV "trade" is gone nothing like it once was, so many though seem to think it will come back, that is just living in fools paradise!
