My crack is smoking [resolved]

Huffstutler · 1883

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Offline Huffstutler

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Reply #15 on: January 28, 2020, 01:56:20 PM
Let me know if you need a better pic and I can desolder some wires to position it better.
On 500 v on dcv, I read 224 on both, and O read 71 on A and 75 on B



Offline Paul Birkeland

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Reply #16 on: January 28, 2020, 02:13:40 PM
The image didn't post for some reason, you may want to give it another shot.

That's good news that the small PC boards are working properly.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Huffstutler

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Reply #17 on: January 28, 2020, 02:25:51 PM
Thanks, that is indeed good news, I suppose the issue is with the main board then. Heres another pic



Offline Paul Birkeland

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Reply #18 on: January 28, 2020, 02:53:54 PM
Are you using lead free solder? (sometimes referred to as silver bearing)  How many watts is your soldering iron? 

I see either lead free solder or just not nearly enough heat on those joints.  It does look like some of the pins one or both of the 2N2222 transistors are soldered together.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Huffstutler

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Reply #19 on: January 28, 2020, 03:30:42 PM
My solder isn't lead free, and I am using an adjustable soldering iron, its wattage ranges from 5 to 60, I probably didn't have it cranked up high enough. I'll redo the solder and message the results.



Offline Paul Birkeland

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Reply #20 on: January 28, 2020, 03:32:13 PM
I would recommend turning it up all the way.  The only parts on that board that aren't going to like a ton of heat are the LEDs, but they will take solder very quickly.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Huffstutler

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Reply #21 on: January 28, 2020, 04:12:00 PM
Okay, thank you so much for the help, after fixing that, all the LEDs are on and there is no smoke. The only issue I have now, is that when testing the headphone jack voltage, it jumps up to 22 volts for a split second instead of the 9 recommended. The volume knob is turned all the way down, is 22 okay, or do I have another problem?



Offline Huffstutler

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Reply #22 on: January 28, 2020, 04:12:49 PM
Also, I did the voltage check and everything cleared



Offline Paul Birkeland

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Reply #23 on: January 28, 2020, 04:31:50 PM
The voltage spike with the Speedball is a little higher, but it's brief in comparison to the stock circuit.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man