JD750 wrote:
What replace my FF body every few years? I did not get that memo.
How old is your oldest working digital camera? It used to be common
for cameras to last 50 or 100 years.
Can you replace a surface-mount component in a multi-layer board?
Do you know anybody who can?
When a boards go out of production, the camera is unfixable, unless the
problem is very superficial. And these days, models are gettting discontinued
more frequently than ever. (Pentax made K1000 mechanical film camera
for 21 years.)
Your only opition with a discontinued camera that is out of warranty and has
a bad board is to buy an identical used camera with some different problem,
and cannabalize it for parts. But digital cameras are full of plastic parts that
don't age well.
I used to do board-level repairs on PC motherboards and TV sets. I don't
anymore.
Surface-mount PC boards with proprietary ASICs and consumer-grade
components, mechanical assemblies that cannot be disassembled and contain
plastic gears, are not built to last an require an exact replacement of the
entire assembly.
Consumers consume technology, but they don't have a clue how it's made.
They think when they send their digital camera back for warranty
service, "the factory" fixes it.
Next time you send a digital camera in for warrranty service, scratch your
initials into the bottom. If the problem was inside the camera, it will come
back with no initials or scratches anywhere -- except on the serial number plate.
"Good as new" -- literally.
Electornics can be made that lasts a long time and is replarable: my Photogenic
Flashmaster AA01 for example--made int he 1970s, but after a little TLC, it works
perfectly. But it's high voltage, large, heavy and was expensive to build.
Low voltage connectors and solder joints are very vulnerable to corrosion.
Some low-power embedded systems have logic levels as low as 0.9 VDC
in the core. That power has to get from the supply to a pin on the processor.
There better not be even a hint of oxidation on the connector.
Consumer electronics and its mechanical parts are not built to last or to be
repaired. They are built to be consumed, then thrown away.