So... my amplifier just exploded!

AHarvey · 27 Sep 2014 at 15:07

Raymond Lin said:
The capacitors (i think) holds powers for hours even after it's unplugged.

Just leave it for a day before you open it up.

yeah I had the same advice with a SKY+ box...

Left it unplugged for 2 days, took the case off to remove the HDD and touched something underneath.. BANG

Burnt a hole in my finger and had a dead arm for about 3 days

happened at 3am as well, could have been lying on the floor for hours until someone found me!

OP, Bin it/get a pro in to look at it/insurance job... I wouldn't bother trying yourself unless you really know what you're doing and I betting you don't

DJMK4 · 27 Sep 2014 at 15:10

Touching capacitors, doesnt seem like the smartest idea, its not A) going to fix the amp, B) Going to fix your emotions after a negative day

Orionaut · 27 Sep 2014 at 15:11

Raymond Lin said:
The capacitors (i think) holds powers for hours even after it's unplugged.

Probably not in this case!

It is probably the power supply capacitors that have exploded!

A reasonably easy fix as long as it hasn't taken out anything else when it failed!

Raymond Lin · 27 Sep 2014 at 15:22

Orionaut said:
Probably not in this case!

It is probably the power supply capacitors that have exploded!

A reasonably easy fix as long as it hasn't taken out anything else when it failed!

OP should open it right now to poke around and find out.

antijoke · 27 Sep 2014 at 15:27

Be my guest.

Guest2 · 27 Sep 2014 at 15:34

There a place in town I can get it repaired so taking it there in a minute.

Picture of the insides. Nothing looks like its burned out or damaged...

http://i.imgur.com/TiZdgyW.jpg
http://i.imgur.com/YkAfOem.jpg
http://i.imgur.com/lteHXiL.jpg
http://i.imgur.com/MbpmMHe.jpg

ElliorR · 27 Sep 2014 at 15:34

Raymond Lin said:
OP should open it right now to poke around and find out.

But to be safer, only do it under a lonely tree in a thunderstorm.

ElliorR · 27 Sep 2014 at 15:37

Guest2 said:
There a place in town I can get it repaired so taking it there in a minute.

Picture of the insides. Nothing looks like its burned out or damaged...

http://i.imgur.com/TiZdgyW.jpg
http://i.imgur.com/YkAfOem.jpg
http://i.imgur.com/lteHXiL.jpg
http://i.imgur.com/MbpmMHe.jpg

Yeah but your torque range bolovating unit has gone as well as the thingamajigs and I can't get the parts till a week next Tuesday and then I'll hand it over to the YTS lad we just got and it'll be good as new.

Ragnahex · 27 Sep 2014 at 16:29

yup that looks broken to me

Sliver · 27 Sep 2014 at 17:10

Guest2 said:
Should I risk turning it back on?

Yes you should. Also get someone to video the switch on and make sure they upload it to YT for the lols.

Guest2 · 27 Sep 2014 at 17:38

Ragnahex said:
yup that looks broken to me

Where / what?

Whitewater · 27 Sep 2014 at 18:01

Guest2 said:
There a place in town I can get it repaired so taking it there in a minute.

Picture of the insides. Nothing looks like its burned out or damaged...

http://i.imgur.com/TiZdgyW.jpg
http://i.imgur.com/YkAfOem.jpg
http://i.imgur.com/lteHXiL.jpg
http://i.imgur.com/MbpmMHe.jpg

The flux capacitor has been completely destroyed.

Try looking at the components nearest the power input and work from there, something must be showing signs of damage.

Guest2 · 27 Sep 2014 at 18:03

Whitewater said:
The flux capacitor has been completely destroyed.

Try looking at the components nearest the power input and work from there, something must be showing signs of damage.

1.21 giga watt amp?

SexyGreyFox · 27 Sep 2014 at 18:11

One of my Mackie SRM450 PA speakers blew up on stage last night so we stopped the gig, replaced it with a stage monitor that surprisingly did an excellent job and will be used again tonight.
I've just bought two more for a steal and I'm going to collect them tomorrow morning.

Oh and yes I have tried turning mine back on with the board out of the speaker enclosure but it's dead.

Whitewater · 27 Sep 2014 at 18:15

Guest2 said:
1.21 giga watt amp?

Handy if the planet ever needs an intercom.

spoffle · 27 Sep 2014 at 19:22

Kenai said:
Hi guys, my plug sockets are covered in water and sparking, should I use them to charge my phone?

You're supposed to stick a fork in it, then lick the fork.

One · 27 Sep 2014 at 19:50

Guest2 said:
There a place in town I can get it repaired so taking it there in a minute.

Picture of the insides. Nothing looks like its burned out or damaged...

http://i.imgur.com/TiZdgyW.jpg
http://i.imgur.com/YkAfOem.jpg
http://i.imgur.com/lteHXiL.jpg
http://i.imgur.com/MbpmMHe.jpg

Apart from the big purple capacitors. They've bulged and one's leaking lol.

itchy · 27 Sep 2014 at 20:52

Take the board out and flip it over and find the short. Sounds like a cap but yours look ok.

The will be somewhere on the board a blacked area where it blew. Then just trace from there. Nothing goes bang without leaving a mark!

aceface57 · 27 Sep 2014 at 20:55

One said:
Apart from the big purple capacitors. They've bulged and one's leaking lol.

Is it leaking though? Looks pretty typical of the glue used to keep the Caps sitting stable on the board, quite common I thought?

Sinopa · 27 Sep 2014 at 22:12

Although the main caps (purple) on these amps can blow very spectacularly, they also go dead short with no other signs of failure.

Check Q703 and Q702 which are thyristors that are mounted to the heatsinks at the bottom left of your second picture. If a cap is short then one of them is likely to have blown its top off.

Also, as itchy said, check underneath for blown printed circuit track.