Hi folks, been using my HB daily with some nice Klipsch 150 Watt Towers. I've always had a strange issue with it though. Every time I power it up, there is static coming from the right speaker for about 20 seconds. It starts off faint, then gets pretty loud before trailing off and fading completely.
I'm guessing due to this behavior that it involves a capacitor in some way. I have the soft start circuit added to the amp too. Another issue is that it was blowing fuses every now and then on start up. I've since switched to a slightly higher value fuse and it hasn't done it since.
Can anybody suggest a place to start looking, maybe the across the line cap? There is a bit of a strange wiring with that cap since the softstart circuit needed to be wired bypassing the switch pad.
I'm guessing due to this behavior that it involves a capacitor in some way. I have the soft start circuit added to the amp too. Another issue is that it was blowing fuses every now and then on start up. I've since switched to a slightly higher value fuse and it hasn't done it since.
Can anybody suggest a place to start looking, maybe the across the line cap? There is a bit of a strange wiring with that cap since the softstart circuit needed to be wired bypassing the switch pad.
Right at the top there's the sticky diyAB Amp "The Honey Badger" build thread. Perhaps your issue might get some more attention there?
Best regards!
Best regards!
Since it is diy, might be current flowing through solder flux left on the board. Wash off with alcohol. Might also be a bad solder joint. Push solder joints with an insulated stick, like a dried up pen, and see if any make noise when you touch them.
Thanks Indianajo! I think you might be on to something. The Female RCA jack slides within the barrel when the plug is inserted or removed from the right channel. Maybe it got too hot during soldering, those are expensive connectors so I just left it. That might be what's doing it, because when I touch the connector the static goes away quicker.