On My Bench.

Dave the bass · Post by **Dave the bass** » Wed Feb 21, 2024 9:04 pm

andrew Ivimey wrote: ↑Mon Feb 19, 2024 9:23 pm SMD was waiting in the wings.

Wouldn't they fall off if the bird took flight?

Seems an odd place to put electronic components.

andrew Ivimey · Post by **andrew Ivimey** » Wed Feb 21, 2024 9:22 pm

Theatre, darling boy, theatre!

Dave the bass · Post by **Dave the bass** » Wed Feb 21, 2024 9:25 pm

*flounces and exits stage left*

pre65 · Post by **pre65** » Wed Feb 21, 2024 9:32 pm

Dave the bass wrote: ↑Wed Feb 21, 2024 9:25 pm *flounces and exits stage left*

Heavens to Murgatroyd!

Cressy Snr · Post by **Cressy Snr** » Wed Feb 21, 2024 9:59 pm

To safety pins even!

Mike H · Post by **Mike H** » Fri Feb 23, 2024 10:45 pm

Ah I remember poking about in old boards like that, trying to figure out what does what. A fellow sixth former who knew more about it than me, I used to drive him nuts asking what does this do? How does this work? And what does this do? And how does this work?

Dave the bass · Post by **Dave the bass** » Sun Feb 25, 2024 7:28 pm

Next on the bench is an M Audio Audiophile USB soundcard, I bought this years ago not working, its been in the pile of 'things that need doing' since then. The seller admitted it had been plugged into the wrong PSU at the time of purchase.

This is it...

The PC doesn't recognise it when its plugged in even though I have a driver installed. The sound via headphones distorts badly too, hmmm.

Lid off...

Signs of heat in the PSU area on the underside of the PCB.

Ooooh, + and - 15v rails OK as is the 3v3 rail but the +5 is down, hmmm, these 2 Electrolytic caps to the left look bulged...

simon · Post by **simon** » Sun Feb 25, 2024 7:57 pm

Dave the bass wrote: ↑Sun Feb 25, 2024 7:28 pm Signs of heat in the PSU area on the underside of the PCB.

What/where are the signs here Dave? The solder joints by your finger look okay. I'd never have seen this. Perhaps I need to looking on a big screen not a phone.

Nice manicure BTW.

Dave the bass · Post by **Dave the bass** » Sun Feb 25, 2024 8:51 pm

The PCB is a yellowy-brown colour where the heat from the 4 regulators has affected the PCB, its a bit of a visual give-away when fault finding and its helped me locate faults in then past.

Ta!

I look after my fingers

simon · Post by **simon** » Sun Feb 25, 2024 9:40 pm

Ah yes, I see it now.

Guessing that's your fret hand rather than strumming hand? (Yeah, you guessed, I'm not a musician!)

SteveH · Post by **SteveH** » Mon Feb 26, 2024 7:11 pm

Nice selection of stressed electros there dtb.

Mike H · Post by **Mike H** » Tue Feb 27, 2024 10:45 pm

simon wrote: ↑Sun Feb 25, 2024 9:40 pm Ah yes, I see it now.

S - P - L - A - S - H . . .

simon · Post by **simon** » Wed Feb 28, 2024 8:13 am

Hey, it wasn't obvious on my phone! Honest! And my attention was drawn to Dave's tidy manicure which appeared to me to be pointing at the two soldered joints!

pre65 · Post by **pre65** » Wed Feb 28, 2024 11:20 am

simon wrote: ↑Wed Feb 28, 2024 8:13 am And my attention was drawn to Dave's tidy manicure

But no nail varnish.

Mike H · Post by **Mike H** » Thu Feb 29, 2024 8:55 pm

simon wrote: ↑Wed Feb 28, 2024 8:13 am Hey, it wasn't obvious on my phone! Honest! And my attention was drawn to Dave's tidy manicure which appeared to me to be pointing at the two soldered joints!

Sorry, that was me seeing it for the first time as well, after you.

Not a criticism.

audio-talk

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