Re: Crackling, popping, etc,.etc. [resolved]

Climber240sx · **on:** September 23, 2024, 08:41:09 AM

I can barley hear anything on a new build. I do hear something "music" but it extremely faint. How do I post a picture? Is this the correct location to ask this question? And you cant post external links?

add and "h" to the beginning to link to the pictures:

ttps://photos.app.goo.gl/dL8h8V2yRyFvNZEj9

Paul Birkeland · **Reply #1 on:** September 23, 2024, 03:20:43 PM

How are your resistances and voltages?

Climber240sx · **Reply #2 on:** September 24, 2024, 07:45:09 AM

Vln=122.3V
Vt7,9=6.38V
Vt11,12=171.9V
All Resistance within range. B3&6 spot on.
Rcenter= 102.4k

Paul Birkeland · **Reply #3 on:** September 24, 2024, 07:49:00 AM

Could you let me know what kit this is? You posted in the Crack section, is this a Crack?

Climber240sx · **Reply #4 on:** October 02, 2024, 07:21:56 AM

Yes, this is a crack kit. I would love to post a picture, but I cant figure out how.

Paul Birkeland · **Reply #5 on:** October 02, 2024, 08:12:01 AM

Please do not submit posts for moderation. That sends out a company wide e-mail and is used to alert us to things like spam, advertising, or inappropriate posts.

In your voltage posts, you posted "Vln=122.3V", is that your AC line voltage?

B3 and B6 connect to terminals 7 and 9, so they can't be spot on if 7 and 9 aren't.

To post a picture, click on "Attachments and other options", click "choose file" under the Attach: heading. Select your file, then click Post.

Climber240sx · **Reply #6 on:** October 03, 2024, 03:41:08 AM

Apologies for the for the reply to the moderators, I realized after I sent it. I'm obviously new to forums in general. Thank you for the attachment instructions.

Vln is " Voltage line to neutral" or AC line Voltage
Vt is " Voltage on the Transformer
B3 & B6 Resistance was spot on @ 2.9kohms
Vt7 and 9 are 6.38V ( within range )

Paul Birkeland · **Reply #7 on:** October 03, 2024, 04:29:42 AM

From the build photos, it looks like either lead free solder was used, or low soldering iron heat, possibly both.

You'll have to look at the products you used to be sure that you have 60/40 leaded solder. If you do, then crank up the heat on your soldering iron and reheat all of the joints in the amp until the solder flows out, noting that the power switch and the LEDs on the 9 pin socket can usually be skipped in this process.

Climber240sx · **Reply #8 on:** October 03, 2024, 05:18:10 AM

The Solder used is Kester SN63PB37 #66/44. Leaded solder. Heated to 325*C.

Paul Birkeland · **Reply #9 on:** October 03, 2024, 02:24:25 PM

That is very, very low heat. I'd recommend going to 450+C for reflowing the joints. Also check out the soldering video I posted, it will be very helpful.

Climber240sx · **Reply #10 on:** October 04, 2024, 08:38:51 AM

I re-sweat each joint @450C. Then I was able to hear well out of one ear. I re did the entire headphone jack and voila, it worked! Thank you for the help, let the tinkering begin!