Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: mpribble on January 13, 2019, 03:39:01 PM

Title: Female rca's [resolved]
Post by: mpribble on January 13, 2019, 03:39:01 PM

Finished my crack all test were good resistance readings on 1,2,4,5 and 13 would just keep climbing guess this normal? Anyway plugged everything in and no left channel black rca. Swapped rca around same thing but if I pull up male rca a little it works. Connection looks good is it possible i got it to hot? This is a stock crack as of now. Thankd

Title: Re: Female rca's
Post by: Paul Birkeland on January 13, 2019, 03:40:59 PM

What are your voltages?

Title: Re: Female rca's
Post by: mpribble on January 13, 2019, 03:49:36 PM

1-78
2-177
3-0
4-177
5-76
6-0
7-101
8-0
9-100
10-0

Title: Re: Female rca's
Post by: Paul Birkeland on January 13, 2019, 03:58:18 PM

Quote from: mpribble on January 13, 2019, 03:39:01 PM

no left channel black rca.

Can you explain what you mean by this?  Do you get no sound from the left channel of your headphones?

Quote from: mpribble on January 13, 2019, 03:39:01 PM

if I pull up male rca a little it works.

If you pull the headphone plug part way out, you will short the right and left headphone drivers to the right output of the Crack, so there isn't any useful information there.

It's most likely that you have a bad solder joint, or potentially perhaps a solder bridge across the left RCA jack.  How are the resistance readings on the center pins of the RCA jacks?

Title: Re: Female rca's
Post by: mpribble on January 13, 2019, 04:10:12 PM

Got 95.8 on both center pins and 0 on ground tab. Yes on sound on left in headphones. Headphone plug is all the way in first thing I checked. I'm talking about rca coming from my source the rca closest to edge of top plate. Plugged all the way in no sound pull up on rca  cable on that rca Jack and have sound. Sorry so confusing

Title: Re: Female rca's
Post by: Paul Birkeland on January 13, 2019, 04:18:50 PM

Can you post photos of the wiring on the jack?

Title: Re: Female rca's
Post by: mpribble on January 13, 2019, 04:26:54 PM

I will try probably be tomorrow. What you think about my voltage readings?

Title: Re: Female rca's
Post by: Paul Birkeland on January 13, 2019, 04:27:47 PM

Quote from: mpribble on January 13, 2019, 04:26:54 PM

I will try probably be tomorrow. What you think about my voltage readings?

Looks like a working amp.  That narrows things down to either the input wiring (RCA jacks to pot) or the output wiring (terminals 6-10/headphone jack).

Title: Re: Female rca's
Post by: mpribble on January 13, 2019, 04:41:21 PM

I did touch the white wire  closer to the volume pot with soldering iron melted little of the jacket?

Title: Re: Female rca's
Post by: mpribble on January 14, 2019, 03:10:00 AM

Hope these pics work?

Title: Re: Female rca's
Post by: Paul Birkeland on January 14, 2019, 04:24:39 AM

Stuff like this can totally short out a channel if it allows the center pin of the RCA jack to touch the outside.

Title: Re: Female rca's
Post by: mpribble on January 14, 2019, 05:18:19 AM

Thanks, what you think clean it up and solder again?

Title: Re: Female rca's
Post by: Paul Birkeland on January 14, 2019, 05:19:57 AM

If you have a pair of side cutter type wire cutters, you can just cut any of that schmoo right off the jack.

Title: Re: Female rca's
Post by: mpribble on January 14, 2019, 05:28:04 AM

Thanks for the help will try tonite and let you know.

Title: Re: Female rca's
Post by: mpribble on January 19, 2019, 07:31:27 AM

Looks like I need to replace a rca Jack which ones should I get? Just want to make sure they will fit in top plate. Thanks

Title: Re: Female rca's
Post by: Paul Birkeland on January 19, 2019, 09:00:56 AM

The replacement would need to be a Neutrik NYS367.

Title: Re: Female rca's
Post by: mpribble on January 19, 2019, 09:11:45 AM

Thanks

Title: Re: Female rca's
Post by: mpribble on January 31, 2019, 03:40:51 AM

New rca in fixed thanks.