What's wrong with my amp?

[PookLowEnd]

I own a Laney amp HCM120B Hardcore Max amp and, eve though it hasn't been the worse amp ever, it still has given me some problems.

The latest is, after a while of playing, the speaker just dies. The amp is still turned on, and even the Compressor LED still turns on when I play (which makes me think the signal is still going through) but it doesn't make any sound at all.

Yesterday, because I was bored, I connected the amp to my computer from the "external speaker" port on it to the microphone input on the computer (as I usually do to record sound) and I can listen to it just fine.

I don't know anything about amps, so I don't want to take my chances into trying to fix it myself, but I was just wondering if this has happened to anyone and pretty much if it's worth it to get it fixed (it has broken once before) or if I should get a new one all together.

Thanks for your attention!

 

[anderbass]

Yesterday, because I was bored, I connected the amp to my computer from the "external speaker" port on it to the microphone input on the computer (as I usually do to record sound) and I can listen to it just fine.

...

I'm not sure whats wrong with your combo but connecting a speaker output jack to a computers mic input is a pretty wild mismatch. (I'm assuming you have to set your amps volume knob very low)

Your model appears to have a DI jack and that would probably be a much better way of connecting to your computer.

 

[PookLowEnd]

Yes I made a mistake posting this. I don't connect my amp to the computer through the "external speaker" port, I use the "line out" port . My bad.

 

[toobalicious]

Yes I made a mistake posting this. I don't connect my amp to the computer through the "external speaker" port, I use the "line out" port . My bad.

lol. i was having trouble wrapping my brain around that one.

as for the problem, does that amp have an effects loop? the shorting jacks are a first thing to suspect when a solid state amp starts acting that way (a tube one too, but after verifying that you arent melting something while doing so). if you have another good instrument cable, plug it into both jacks of your effects loop. if the problem goes away, the jacks should probably be cleaned or replaced.

 

[Bassmec]

The speaker Dies? is that like it cuts out instantly or it reduces in volume
getting more distorted until it can no longer be heard.
Glad we are not talking about plugging the power amp out into the computer mic input anymore.

Maybe the amp is thermaling out how is the ventilation around the heat sinks etc, does the level you play at affect the time the amp takes to fail.

 

[tom once dead]

dry soldering?