Dick Smith System 80 - What do I do next with it?

[CheshireNoir]

So I tried a different tack, and recorded the WAV file to a cassette and tried playing back that, but no dice. I still didn't get any signal above 1 and a bit, even after re-recording it at much higher volumes.
At this point I think there must be something wrong in the amplifier circuit associated with the cassette. Looking at page 39 of the schematics, if I replaced R5 (3.9k resistor) with, say, a 2k resistor, would that work in boosting my output, or am I misunderstanding the circuit?

EDIT: Alternatively, should I look at using a different cassette deck with the external tape port? I'll need to buy a 2.5mm jack for the motor control, but it should be doable? 

John

[ChickenMan]

Are you trying to load via the external Cassette port ? if so, you must load Binary files ONLY via the built in player. I normally have the F1 button down also.

[CheshireNoir]

Not yet trying to load from the external cassette port. Merely wondering if it would have been an easier path than fixing the internal cassette drive.

[RedskullDC]

Not yet trying to load from the external cassette port. Merely wondering if it would have been an easier path than fixing the internal cassette drive.

Hi John,

Have a look in the Blue edition of the System-80 tech manual.

There is a simple mod shown on PG26 to be able to switch between internal/external cassette decks.

Cheers,
Leslie