I'm new to the TI 99/4A world and I recently purchased a program recorder off of e-bay. Well, as luck would have it, it's a partial dud. It records and plays but the volume is so low (even with the volume control all the way up) the computer cannot read the data when I try to load it. I tried recording my own voice and its very low volume also. I tried cleaning the playback/record head and replacing some of the electrolytic capacitors on the board but that did no good. Without a schematic I'm really shooting in the dark here.
So I guess my question is, has anyone else run into this problem and if so what did you do to resolve it? Anyone have a schematic? Failing that anyone have a TI Program Recorder they'd consider parting with at a reasonable price?
Thanks in advance,