My amplifier!

[cjdelphi]

Today after 4 years it started a loud buzzing noise on ALL speakers...

I instantly replaced all the dodgy caps, it reduced some noise but still annoying...

The Fact all the speakers buzzed is interesting, it was sitting still when it happened there is an mc onboard with display thats all fine...

And yes the amplified sound still comes through just with a lot of buzzing, i'm thinking it's the power supply board now ...

Anyways no rush dream time in Aus now

 

[BobK]

It does sound like the power supply has lost its filtering. Check the output with a multimeter in AC mode. It should read in the millivolt region, if it reads volts, the filter capacitor is probably open.

Bob

 

[cjdelphi]

Cool cheers will do!

 

[cjdelphi]

Amp from hell...

I eventually tracked down the issue, replaced practically every cap problem solved...

But.... i swear i've not taken any drugs but after putting it all back together (they all fit) there's this 1 cable which seems to have shrunk in length, and if i move it into another position all the other cables no longer reach... i'll take photos lol

 

[cjdelphi]

Update..

I put the faceplate on upside down, took me a while got it all fixed..

Then ... i accidentally plugged in a speaker out from the pc sound card to the input no wrong!!!

I connected my sound card directly to the amplifier out! By by creative labs sb card!

Fixed the amp though ... bitter sweet

 

[Old Steve]

Update..

I put the faceplate on upside down, took me a while got it all fixed..

Then ... i accidentally plugged in a speaker out from the pc sound card to the input no wrong!!!

I connected my sound card directly to the amplifier out! By by creative labs sb card!

Fixed the amp though ... bitter sweet

At least a sound card is cheaper than an amp to replace.

 

[cjdelphi]

Yeah yeah, esp a 5.1 surround sound system which this is... bitter sweet :/

 

[Martaine2005]

I put the faceplate on upside down

I connected my sound card directly to the amplifier out!

there's this 1 cable which seems to have shrunk in length

But.... i swear i've not taken any drugs

Are you sure?

Martin

 

[cjdelphi]

Lol yes, the faceplate (where the connectors stick out) upside down...