Bikes as Disposable Items?
05-31-17, 09:34 AM
#76
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Assuming people are cool possibly waiting for months for a replacement component for their TV that needs fixed, assuming the correct components are even still in production. A lot of these things are not as simple as walking down to Radio Shack and picking up a replacement. Assuming they are cool with hundreds of dollars in diagnostic costs, when the technician has to manually check hundreds of components to even determine which is bad to begin with. Assuming companies are happy to hand over schematics for their products, to allow the technician to even know how the thing works and what the parts are to begin with. Of course, that is even assuming the component in question is hand solderable to begin with, and the circuit board itself is in no way damaged.
I spent the better part of three years writing diagnostic programs to, in part, automate locating problem components on fighter jet circuit boards, which the military will stock spare components for and spare no expense in having fixed at one of their repair depots. Going to that effort for a $400 TV really isn't worth it.
I spent the better part of three years writing diagnostic programs to, in part, automate locating problem components on fighter jet circuit boards, which the military will stock spare components for and spare no expense in having fixed at one of their repair depots. Going to that effort for a $400 TV really isn't worth it.
Repair shops do exist for consumer electronics still. They do have specialist equipment for dealing with BGA, but mostly it's soldering under a microscope. Schematics are usually pirated off the internet. When it comes to spare parts, the ones I know buy scrapped PCBs in bulk from china and desolder them from those.
The only thing that's really gotten worse is that these shops specialise more. They won't fix any tv, but they'll fix the most popular ones. You don't see places that offer to fix any laptop, but you'll see ones that fix apple laptops.
05-31-17, 09:50 AM
#77
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Repair shops do exist for consumer electronics still. They do have specialist equipment for dealing with BGA, but mostly it's soldering under a microscope. Schematics are usually pirated off the internet. When it comes to spare parts, the ones I know buy scrapped PCBs in bulk from china and desolder them from those.
05-31-17, 11:52 AM
#78
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Sure, as do I, but generally avoid it at work except for prototypes or when trying to understand possible flaws in a design.
Apart from personal possessions, something has to be a valuable piece of gear and a simple, well-contained fix to warrant paying someone to do so.
Failures can cascade, too - it may not be just one component that is bad, and the collateral damage may vary from instance to instance of the same fundamental problem.
There's also real cost in just getting something into an appropriate building and open on a bench where you can work on it too, especially if it needs to go back together in good cosmetic condition.
Apart from personal possessions, something has to be a valuable piece of gear and a simple, well-contained fix to warrant paying someone to do so.
Failures can cascade, too - it may not be just one component that is bad, and the collateral damage may vary from instance to instance of the same fundamental problem.
There's also real cost in just getting something into an appropriate building and open on a bench where you can work on it too, especially if it needs to go back together in good cosmetic condition.
05-31-17, 12:09 PM
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Sure, as do I, but generally avoid it at work except for prototypes or when trying to understand possible flaws in a design.
Apart from personal possessions, something has to be a valuable piece of gear and a simple, well-contained fix to warrant paying someone to do so.
...
Apart from personal possessions, something has to be a valuable piece of gear and a simple, well-contained fix to warrant paying someone to do so.
...
And working in product validation, hand rework parts generally suck. Considerably higher failure rate with them. We only do it to rectify an issue and validate the fix, or when there is absolutely no other option.
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