Amp works randomly

[treesive 10+ year member]

I have a buddies SAX1200d in my car right now and it started up and worked fine yesterday morning. On the way home yesterday, it never put out any sound but was on. This morning it came on just fine and played for the first song and then stopped working again. I plan on cracking the plate off tonight and looking if anything looks out of sorts but I am not a electronics guru (atleast motherboards etc) but have decent knowledge. I was wondering if you guys could give me a few things to check on it? I have decent knowledge on what pieces of the amp are (PSU, transistors, etc). I feel that something has to be loose for it to randomly work and not but have no real idea. Any advice would be appreaciated!

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[SPLaudio 5,000+ posts]

sounds like maybe a bad ground or a shorted speakerwire/coil....

 

[Raptor660 10+ year member]

X2 double check ground, remote and rca's

 

[treesive 10+ year member]

Those were my first ideas as well. I have forgotten to tighten down screws/ not plug in all the way before and made sure I looked at that first. Is it possible that it could be the rcas connected to the board which are causing this? That is my current guess but I gave them a little wiggle and they seem sturdy. I will check again but I don't believe it is one of those things.

 

[Dirtrider4eva 10+ year member]

take out the RCA, if the pins arent centered and can wiggle, its the Rcas for sure. or swap your rcas for your buddies and test them out.