behringer b1800d

[saj888]

Hi,

I have a another Behringer contraption in the shop. behringer eurolive b1800d-pro active 18 subwoofer.

The audio cycles on and off. Comes on for a millisecond then instantly cuts off for approx 10 seconds. It's passing approximately 1volt dc. When the voltage drops to under .5 volts the audio comes on again for less than .5 secs. then instantly goes off. The cycle goes on. I have replaced the output transistors, 2 20957 ics,LM393, ic4, ic6, Checked most components. The audio is clean up to pin 2 on ic4. Does anyone have any suggestions.

Thanks.

 

[redk9258]

http://audiokarma.org/forums/index.php?threads/behringer-b1800d.732494/

Probably would be best to post in one place. It gets confusing reading replies to 2 posts on the same subject.