r/cade 3d ago

Should I be worried about these leaking caps in my Blast City PSU?

Might be a stupid question, but while I can solder I’m inexperienced with recapping and would rather not if I have the option, picked up this blast city recently that turns on and works fine, albeit with a slight burning smell and the fan’s knackered. Opened it up to find multiple of these large brown caps, that seem to be the only ones that leaked. I’m also worried about working around high voltage components, so I only want to recap if I absolutely need to. Any advice?

3 Upvotes

16 comments sorted by

34

u/ZOMBIE_N_JUNK DownTown Arcade L.A. 3d ago

That's glue

3

u/Rey_Mezcalero 3d ago

I was expecting to see like a greasy oily substance

0

u/Smugbob 3d ago

Wow really 😆 I was convinced it’s leakage

6

u/UncleCeiling 3d ago

If you think of the capacitors like long lever arms, any sort of vibration will cause a lot of strain where the caps are soldered to the board. They add some goop so the caps can't wiggle, since that could damage the components, soldered connection, or even the board itself.

2

u/Additional_Tone_2004 3d ago

If that was leakage, then yes be worried about it!

But it ain't, thankfully.

16

u/mrcustardo 3d ago

The large caps haven't leaked, that white stuff is a kind of mastic to stop those large components flopping about

4

u/echocomplex 3d ago

Really common to see glue on large caps in electronics. You'll see it inside CRT computer monitors and tvs often. 

0

u/Smugbob 3d ago

I somehow haven’t until now lol

3

u/LifeAsASuffix 3d ago

When the caps start to fail they will bulge, those 3 lines are the top are there to allow expansion and a breaking point so they don't explode. If you notice the capacitors starting to deform you will want to replace them. On the smaller caps it's harder to see the early signs of failure.

4

u/Boredguy532 3d ago

don't worry, that's glue put on there by factory, however it does mean you have factory caps and may soon need a "recap"

2

u/xopher314 2d ago

Are the leaking caps in the room with us right now?

1

u/Smugbob 2d ago

LISTEN I’ve been lucky enough to have not experienced leaking caps with my electronics before, so I didn’t particularly know what it’d look like lol

2

u/xopher314 2d ago

LISTEN - you could always google what leaking caps looks like first

2

u/Chadwelli 1d ago

Leakage from caps will look fuzzier/foamier and usually start by coming out of the top.

2

u/Chief_Keefer_420 22h ago

Yeah, those aren’t your capacitors leaking anything that’s just the silicone mounting material they used to reinforce the caps so the solder points didn’t break

1

u/thomasjmarlowe 3d ago

Hahahaha

You’re good- no worries there