|19th September 2013, 12:07 AM||#502|
Join Date: Sep 2012
I finally got my old amp up and running again and it's been treating me well for the last couple of months, but I just moved house recently and it's begun to play up again!
Basically, if i turn the amp above a certain volume, the speaker protection relay clicks into action and cuts all the sound, then will come back on within a couple of seconds. It sometimes clicks on and off repeatedly, but turning down the volume generally helps.
From looking around online, most people seem to be pointing towards something as simple as needing to clean the relay connections, but I was just wondering if anyone has had this issue before and if they managed to fix it with ease.
|19th September 2013, 05:43 AM||#503|
Join Date: Dec 2012
Location: Buenos Aires
Have you checked out for DC voltage at the amplifier output related to volume pot position? May be the speaker protection circuit is triggering for a reason.
In that case you'll have to trace the dc component origin being amplified.
As a side note, the relay coil is operated by the protection circuit, which is independent of the relay contacts condition.
|16th December 2013, 09:02 AM||#505|
Join Date: Dec 2013
My other amp can donate the big capacitors so I can end with 12000x4
Is better for the bass ?
with the second transformer it doesn´t matter ??
Is this too much cap??
The s4vb20 bridge can supply 2.6 amp continuos without heatshink and 4 amp if I put one heatskink ( peak surge forward current, non-repetitive 1 cycle = 80amp)
Well I have got a metal big 35 amp bridge. I can put it near the two Transformer, in the chasis. I can put the two new capacitor (12000+12000) near the bridge, and left the original caps near the transistor...
what do you think ?
worth it ??
PD: sorry for my english
Last edited by curiosogti; 16th December 2013 at 09:07 AM.
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