Bottlehead Forum
Bottlehead Kits => Crack => Topic started by: JoshMorr on November 22, 2015, 03:15:13 PM
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Hello - newbie to DIY - I have built some complicated project, but I've gotten lucky and they have all worked.
I built my Crack and used it for a month or so with excellent results. Thought I found audio nirvana. I installed the Speedball upgrade and it did not work. I am getting a loud hum out of the right channel and no signal from the other. I am getting a faint audio signal from the channel with the hum. I went back and checked all of the new solder pads and do not see anything obvious. I am having trouble figuring out where to start diagnosis.
I can post all of my voltage results for all of the terminals, but what I immediately found odd was a 172 V reading out of terminal 3, and the same voltages across terminals 1 & 2 and 4 & 5.
Secondly, while testing I noticed some smoke coming from the cap between terminals 14 & 15. This cap was so hot it liquefied the solder at terminal 14. Is this cap likely fried?
Any advice of what to check for where? Sounds like I may have a few problems.
Thanks,
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Something is wrong with your build. Please post pictures. Do not plug in headphones when your voltages are not correct.
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Yes, it sounds like you have something connected to the wrong terminal. Best to go back and recheck all of your connections against the manual, and post photos.