Seventh Circle Audio

by **Pleasurehead** » Fri Nov 13, 2009 6:39 pm

Hi,
I've just finished my first module D11. I have tried the first check before power up and have a problem with pin 2 to 3 on J3. I can't seem to find a short anywhere. I've checked diodes and caps are right way round. Is there anyway of checking for a short other than by eye?

Thanks

by **tpryan** » Sat Nov 14, 2009 7:57 am

Do you mean J7? What resistance do you measure? Is it constant or changing with time? Your meter is the most effective tool for finding a short, since you can't see inside a shorted component.

by **Pleasurehead** » Sat Nov 14, 2009 4:21 pm

Hi Tim,
Yes sorry I mean J7 (built a T15 as well). I'M not getting any reading when I measure pin 2 and three

by **tpryan** » Sun Nov 15, 2009 8:05 am

Does that mean zero ohms or an open circuit? What you're looking for is "not a short".

by **Pleasurehead** » Sun Nov 15, 2009 8:14 am

Hmm. I must read my Electronics for dummies again I'M a bit lost with the multi meter lol. When I test pin 1+2 I get a reading of 1.744 and rising. when I measure 2+3 I just get OL ..

by **Pleasurehead** » Mon Nov 16, 2009 4:01 am

I think it's an open circuit. Also, can you tell me which way round I was supposed to install transistors Q1-Q4? The instructions I downloaded become very vague about this. Does it make a difference?
Thanks

by **Pleasurehead** » Mon Nov 16, 2009 4:04 am

"Be sure to align the flat side of the transistor with the flat side of the silkscreen outline"

Nothing vague about that. Sorry! I got them in right anyway :lol:

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