No sound out of the Amplifier.

Question edited for clarity (with a guess at model).
Question moved from Television and Video.

If you want to check inside it, look for damaged components or blown or bulging capacitors. The best solution is to take it to a local electronics or audio store for repair.

https://www.google.com/search?q=crate+yellow+amplifier+no+sound

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internal overload protection

Replace volume Pot.

this should help you.

https://gearspace.com/board/geekzone/735580-power-supply-ceramic-caps-burnt.html

It is a known issue

https://music-electronics-forum.com/forum/schematic-requests/27983-ibanez-swx100-combo-bass-amp

More here

https://www.google.com/search?q=ibanez+bass+amp+swx100+schematic

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Do you happen to have another speaker that you could hook up to speaker output? This would bypass the amps internal speaker and lf you get sound from that setup, it would mean either a jack failure or possible internal speaker problems. Please let me know.

Hi

Go to www.ezrepair.ca and send it to us.
We will diagnose your unit for free and give you an estimate in a 48H maximum period.

the amp is going into protect mode due to something wrong in the amp or some thing in the wiring to it ooh yea if you are getting 18v power to the amp that is way to high it should not be higher then 15v if the amp is in protect mode it will not play at all.

It probably has shorted output transistors. To eliminate other possible causes, read through the following page.

Amplifier in Protect Mode - Troubleshooting

Let me know if you have any other questions.

Hi gv6257

What sort of amp you play. I will help you sort it

regards
tobotek

Sometimes an amplifier's preamp can't handle certain signals/frequencies at a high gain, so they cut out. Bass guitars are especially prone to giving such a strong signal.
I bought an older, nonworking bass amp recently and fixed it just to find it had the same problem. Best solution is to put a low ohm resistor at the amps input, but if you turn your guitar down to half volume it'll have the same effect: should prevent it from cutting out.