Darius Burst ACEX cabinet repair

[T4N3]

Hi - My local arcade has a DBACEX cab with their sound broken, but the owner has no idea how to perform repairs on his unit.

Would anyone have any experience with these? Those are fairly common cabs, so I assume there must be some logs on the web from owners who perfomed repairs in the past, but I cannot find any myself despite searching high and low.

Allternatively, would anyone have scans of the operation manual? (説明書 NB_B345F) - I think some were sold on yahoo auctions but I can't find anything still available.

[rtw]

Assuming this is a complete cabinet I would start by just plugging in normal speakers in the audio sockets on the TTX2 unit to determine if its an amp problem or TTX2 problem.

You can run sound tests in the setup menu.

Which version of DBAC AC is this ? Version is shown on the setup screen.