NaibofTabr

Yeah if you’re down to put the effort into fault tracing, you’ll need an oscope. Something like this: https://ebay.io/m/PDLGdu will work fine.

It will take some time, but if you’re lucky you’ll find it’s just a capacitor that you can replace cheaply. If you’re unlucky you might find that it’s a faulty IC, in which case you might have to replace an entire circuit board from a donor unit anyway.

You’re going to have a hard time pinning this down to a specific component without a circuit diagram. I did find that there’s a service manual for this unit: https://elektrotanya.com/marantz_nr1501_ver.5.pdf/download.html

Seems to be legitimate and has diagrams.

I would recommend starting on the output side - is the popping present on every speaker output? Both left and right? Use a very simple speaker for this, one that doesn’t require its own power source, just a red and black wire. Also, is the popping present with no input audio?

If you can narrow it to a certain output you can backtrack it to a specific section of the circuit that feeds that output. Alternatively, if it’s present on all outputs then it must be a component that is common to all, and therefore behind the area that splits to the different outputs.

An oscilloscope would be handy - you could identify the faulty signal at the speaker output, then check points along the path backward. Half-splitting is your friend. You don’t have to buy an expensive piece of lab equipment, a cheap $30-40 digital oscope will be good enough.

Another option would be to throw parts at it. I see units listed for parts on eBay for ~$80. You could try swapping out circuit boards one at a time.

OK, I’m no expert but it says this at the end of that product listing:

Secure this matched 2-pack of premium Sunwoda 314Ah cells—fresh stock from a respected brand, with flat studs for easy welding/integration.

Are you saying they need a heavier gauge bus bar for the current, something too thick for a small spot welder? Would you MIG/TIG weld a battery contact?

You can get handheld spot welders intended specifically for battery terminals for US$30-50. Spot welding is a lot less likely to damage the cell or risk puncturing it. Here’s an example:

https://ebay.us/m/adsJwa

It won’t start on battery or when plugged in (it can run without a battery when plugged in).

So the battery is trash. Does it fully boot when you start it without the battery?

The battery does seem to be dead, and so is the 3V CMOS battery.

Did you replace the CMOS battery?

What does your multimeter tell you about the laptop battery?

https://pinoutdiagrams.com/battery/pinout-on-laptop-battery

The problem might be with dead/shorted cells in the battery or the charge controller in the battery.

So many to choose from…

DuPont Chemical?

Wells Fargo?

Wal-Mart?

Coca-Cola?

My pick would be Bank of America for their illegal foreclosure practices which have ruined many families’ lives, and especially for their role in the subprime mortgage crisis which destabilized the entire global economy and which we are still trying to recover from. Everyone on the entire planet was impacted by the Great Recession.

It’s going to be a challenge for them to reach new people to warp to their worldview if they are largely kept away from everyone else.

This only makes sense if you assume that new people would be funneled into extremist Lemmy instances from other Lemmy instances, but it’s far more likely that new people will be pointed toward such communities through other paths, and then they won’t be exposed to competing ideas.

Don’t misunderstand me - I’m not saying that hate speech, racism and sexism should be ignored or allowed to exist alongside other content on Lemmy. I am saying that trying to ignore that, separate ourselves from it, and pretend like it doesn’t exist and doesn’t affect us, is ultimately counterproductive.

The problem with letting things fester is that they tend to grow and get worse while they’re out of sight/out of mind, until they eventually burst out and spread toxicity everywhere.

One of the benefits of free speech is that the nasty stuff gets exposed. When it’s exposed then you at least know where it is. The only problem is if the nasty stuff doesn’t get labeled as such so it can be dealt with, and instead is treated as if it were normal and allowed to continue spreading (e.g. police turning a blind eye to far-right gun nuts intimidating voters).

In my opinion, “watch and see” is a good approach towards potentially hostile entities. Meta is not “potentially” hostile - it is a hostile entity already,

This is a very valid point. We don’t need to wait to see if Meta, the company that created tracking pixels, will behave as a good actor. They are already proven to be a bad actor and should be treated as such.

I think it’s far more likely that there will be more of this. Lemmy instances already exist for various extreme political views. They might not be federated with the instance you’re using, but they definitely exist.

The nature of the fediverse, with no centralized control or oversight, will produce more such communities, not less.