modem7
January 27th, 2007, 03:57 PM
I have just finished repairing two Tandon TM100 diskette drives that I bought as 'untested'.
My first pass visual didn't spot any problems, but my detailed second pass did.
The drives had been mishandled (not damaged during shipping).
In one case a cap had one of its leads broken (causing spindle to run at incorrect speed).
In the other case a transistor had a lead broken (couldn't read past track 0).
It just reinforces that a decent visual can sometimes save hours of work.
My first pass visual didn't spot any problems, but my detailed second pass did.
The drives had been mishandled (not damaged during shipping).
In one case a cap had one of its leads broken (causing spindle to run at incorrect speed).
In the other case a transistor had a lead broken (couldn't read past track 0).
It just reinforces that a decent visual can sometimes save hours of work.