The FX570ES is functionally identical to the FX991ES except that the 570ES has a AAA battery whereas the 991ES has button cells.
I owned both of these during my engineering days and is arguably now the only proof that I actually did my Engineering 😛
Here’s the teardown:
The missing controller blob!
^ Missing the controller blob!
I really can’t do a detailed tech analysis as the main controller blob is misssing. So apart from the obvious buttons and LCD and Battery, there ain’t anything to look into
I did this teardown on my broken Calci, notice the cracked screen 😛
More teardowns coming soon.