emergency chip help!

[carlosfm]

Originally posted by ThSpeakerDude88
btw, that didnt fix the problem. I think I might have somehow shorted the outputs?

You didn't connect pin 4 (Mute).
Although it says this on the datasheet:
'when Vpin4 is lower than +VS - 6V the amplifier is in play mode.'
I'm not sure if on this chip this pin can be left unconnected.

[ThSpeakerDude88]

haha well it was just fine that way for 2 months of use getting thrown around in my cd case and being used at full crank for hours on end through various systems....not a single hickup untill I was asked to fix something that wasnt broke. Hey the soldering may not have been pretty but it was secure and it worked fine...sheesh lol. I should have just left it the way it was,but nooo the judge told me to redo it. Not his fault though, probably something stupid I did when soldering it in place. I've checked the circuit 20 times over to make sure I didn't do something wrong,it all looks perfectly fine ( and its a lot neater than my previous design, same design just more compact and better soldering.) wah

[ThSpeakerDude88]

I fixed it. Well, that goes on my top 10 list of the most stupid things I have ever done- The input caps were backwards.....

*insert embarrased smily here*

[Byrd]

Mmmm - that shouldn't have caused any sort of problem that is assuming you are refering to the 1uF caps on the left of Circuit Diagram?

Those caps, although reflected in the diagram as being polar, are usually non-polar. This means that there is no incorrect way of inserting them.

If I a wrong - somebody please comment - This is from my limited experience and understanding of amps

[ThSpeakerDude88]

well all I had were elkos to use. Maybe if I can get my hands on some Metal film caps of that value (1 uf) I can use them

[Byrd]

Sounds good.