Well I got this decent but old Japanese model tape deck. It plays back
beautifully, and it does record but it seems the recorded signal is
low. I have managed to make some decent enough recordings by cranking
up the input and recording level but I would like to have the recorded
music high at the default levels.

I was wondering if something is wrong, or if I could adjust the levels
internally. I have cleaned and demagnitized the heads, but have not
opened the case yet to check for adjustment pots.

Any advice or help would be appreciated. I just want to make decent
cassette recordings. thanks