capacitor or fuse?

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sorry, not resettable, quick blow.

there are white quick blow smd fuses that look pretty much the same.

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this would be a cap for sure.
chip-type fuses are usually larger and rather flat and will always have their rating either printed directly on them or on the silkscreen around them, usually with an F designator, not a C or R.
pic related, right in the middle.

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>>1088395
fuses like this have a square cross-section, not rectangular like ops image, and have larger contacts so they fit into sockets

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>>1088397
I found this picture on farnell tho. it's of a TE white 2A smd fuse, so there are fuses that look like this. problem is that when i replaced these with 3A PTC fuses, the flash capacitor gets warm and it still doesnt turn on but now if I touch the test points on the main board, I get 1.10V and 3.00V power being delivered to the mainboard.

this is just for fun, i bought a salt water destroyed 600D and I'm trying to fix it. the conformal coating protected pretty much everything except ribon connectors which i just cleaned with phosphoric acid and rinsed with methanol, now it looks clean and all the contacts work. just trying to work out what's going on.

>>1088397
>>1088398
There are all kinds of chip fuses, with different contacts and cross-sections and not all of them have stuff printed on them.

>>1088394
If your meter says 50nF and it's not bogus (resistance measurement agrees), then it certainly sounds like a capacitor. White NP0 ceramic is pretty common in smaller capacitors (less than 1nF).

so i ended up replacing them with 50nf capacitors and now the ground plane gets really hot.

>>1088400
>flash capacitor gets warm
Umm that sounds like a problem in itself.

OK I think i found the problem. disregarding meme advice from forums that told me those caps were fuses now. whywouldsomeonejustgoontheinternetandlie.jpg

the problem appears to be a fault in the current sensing circuit. I've taken a lot of bits off the board now, flash and charging capacitor are out so the flash circuit isnt the problem. it was a 0.05A 2W thin film resistor in the current sensing chunk of the circuit. it was burning up badly. which means its not metering the current properly. 8V/2A draining right through it. when i measure the resistance between the + and - terminals on the board i get about 5Mohm with the battery out. so there must be a transistor somewhere hanging open for no reason letting all the power through.

the next step in tracing the circuit is to work out what these 8-pin ICs marked

JS
0K3

>>1088394
How has no one suggested you check it for capacitance or continuity?
>>1088771
You've shorted something.