Please help: weak output from new Crack build [resolved]

[beatcomber]

You could use a different resistor value there without ill consequences.

Great! I'll go buy the ones with the close value locally then, thank you!

[beatcomber]

I think I'm all set to proceed. I just bought some 2.7k ohm 1/4-watt resistors, which I assume are suitable replacements.

Wish me luck!

[Paul Birkeland]

Yeah that's totally OK. 

[beatcomber]

Wonderful, I appreciate the response!

[beatcomber]

Well, I've made one baby step forward, but it's still not there.

I just wired up the new headphone jack and resistors, and am getting great sound from the right channel only. The resistance reading from the right channel is within spec as well.

The left channel, however, is still dead.

Did I just fry another headphone jack? I'd wisely ordered an extra jack, so I can take another shot at it, but before I do, I'm hoping I can get some basic guidance on  the proper soldering technique for connecting this part.

My soldering station is set to its max, 480 degrees F. I'm not sure if there is enough room for me to attach a hemostat (as a heat sink) on the terminal.

[beatcomber]

I just re-watched the video on how to safely solder the power switch, so I suppose that is the same guidance I should use.

[Paul Birkeland]

480F isn't hot enough (480C would be).  While it might melt the solder, it will take so long that you'll also melt the jack in the process.

I would get an iron that can get to at least 800F before trying again.

What iron are you using?

[beatcomber]

480F isn't hot enough (480C would be).  While it might melt the solder, it will take so long that you'll also melt the jack in the process.

I would get an iron that can get to at least 800F before trying again.

What iron are you using?

A ha, that makes sense!

This is what I'm using:
https://holife.com/products/holife-soldering-iron-station-60w-soldering-station-200-480-ae-adjustable-temperature-soldering-iron-set-with-separate-switch-solder-iron-holder-5-extra-iron-tips-brass-wire-ball-cleaning-sponge

I guess it's time to invest in a better (hotter) iron before proceeding.

THANK YOU.

[beatcomber]

This should be arriving on Sunday. 

https://www.amazon.com/gp/product/B08NPPBSHH/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

[maryc27182]

This is what I'm using:
https://holife.com/products/holife-soldering-iron-station-60w-soldering-station-200-480-ae-adjustable-temperature-soldering-iron-set-with-separate-switch-solder-iron-holder-5-extra-iron-tips-brass-wire-ball-cleaning-sponge

That iron reports temperature in degrees C. If you had it set at 480 C, that's quite warm. The soldering station that you'll get on Sunday has the same temperature range as your current soldering station, so you could continue working now, as long as you convert the temperature from C to F so you know what you are doing. (It looks like your new station will convert the temperature to F for you.)

Mary

[Paul Birkeland]

If that is the case, 480C is plenty hot.

If you plug in your headphones and you still see a zero ohm reading at terminal 6 or 10, then you need to turn up the heat all the way on the station (if it isn't up already) and spend a bit less time soldering it on.

[Thermioniclife]

I solder at 650F 99% of the time. Set your station to 340C and you should be good to go.
But as always YMMV.

[beatcomber]

By golly, you’re right! 480c = 896f.

I guess what it comes down to is I have to work on my technique. I’ll do some practicing on the fried jack before attempting it again on my last good jack.

[beatcomber]

I solder at 650F 99% of the time. Set your station to 340C and you should be good to go.
But as always YMMV.

If that is the case, 480C is plenty hot.

If you plug in your headphones and you still see a zero ohm reading at terminal 6 or 10, then you need to turn up the heat all the way on the station (if it isn't up already) and spend a bit less time soldering it on.

Am I better off going full blast (896f) or should I dial it back to 650f?

[Paul Birkeland]

I would recommend full blast and not a ton of solder. Just enough to fill in between the wires and headphone jack.  Use just enough heat for the solder to flow out between the parts.