I guess, we'll have to go step by step. First, add "use Encode;". After you've obtained the values from DB, check if they are converted to internal perl encoding using
print Encode::is_utf8($sInstrumentNameJ), "\n";
If this produces "1", then the value is converted to perl's internal form and we should check how you output it to the terminal. If this produces empty string, then the value is not converted by the driver. In this case you have to convert it manually.
In either case, we have to know which locale is active in your terminal emulator. Normally, it shall be some UTF-8 locale, but who knows. Please provide output of "locale" command.
Also, if the "is_utf8" function produces empty string, it would be good to provide here the hexdump of the value you get from the database. Using this way for example
print unpack("H*", $sInstrumentNameJ), "\n";
And also the Japanese text it should correspond to.
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