Hi all
When I switch off the ampli the woofer of the speaker oscillate badly for few seconds.this happen only on one channel. .
when we remove the couplage cap between driver and output stage in fact we remove the feed back .
this problem happen only in one channel .....so how e can find solution in circuit changing ?
sorry just carefully i looked at schematic !!!!! the 100 mfd in feed back !!!!hi all
Just to thank all that try to help
This afternoon I check all component and they were all good
Reducing the feedback did solve the problem
Remain still strange to me why only on one channel
Anyway thanks again
Last edited:
There is no capito in the nfb network.
And May i should have one. Probably with a correct site capacitor There this oscillation would not occour
Problem is to find the right value require a lot of test and i have no time right now as going to work. Project for winter time
Thank you
And May i should have one. Probably with a correct site capacitor There this oscillation would not occour
Problem is to find the right value require a lot of test and i have no time right now as going to work. Project for winter time
Thank you
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