Simmons DA200S

[PEDRO CHAVEZ]

Please, I need the schematics or service manual, is Simmons DA200S. Thanks.

[Jazz P Bass]

Here is what I have.
Rev F uses an STK module.
Rev G uses two TDA 729X amp chips in parallel.
I had a Rev G come through with a blown rail switching mosfet & a blown speaker.
It came back 2 weeks later in the same condition. (Grrr)
Turns out one of the TDA IC's was at fault.
Replaced both, replaced the rail switch mosfets & another speaker.

[PEDRO CHAVEZ]

Thank you very much, Jazz P Bass. I found one speaker in bad condition, the bass doesn't work, I'm working on it.

[J M Fahey]

Here is what I have.
Rev F uses an STK module.
Rev G uses two TDA 729X amp chips in parallel.
I had a Rev G come through with a blown rail switching mosfet & a blown speaker.
It came back 2 weeks later in the same condition. (Grrr)
Turns out one of the TDA IC's was at fault.
Replaced both, replaced the rail switch mosfets & another speaker.

They certainly overcomplicated that power amp to get mere 50W per channel.

I understand a quad rail 700W per channel rack amp but .... 50+50?????

[tedmich]

They certainly overcomplicated that power amp to get mere 50W per channel.

I understand a quad rail 700W per channel rack amp but .... 50+50?????

and its a Drum amp? Any drummer worth their salt should be able to easily drown out a 50+50w amp IMHO!