[mcallister]

Was going to do a run of Audyssey today and while setting the sub level for one o my DTS-10s a channel in my face audio amp caught fire and then went out. Horrible burning smell filled the room.

I noticed when setting the level that overall DB levels were down on the channel. As I raised the gain on the amp it didn't raise the volume then it blew.

Is this something that is easily repairable?

 

[mtg90]

I will take a guess and say a repair would involve more then just some simple replacement parts. Likely the board is toasted and beyond repair. Take some pictures so we can get a better estimate of the damage.

 

[mcallister]

Man I love this amp, I hope it's not fried. I'll try and get some pics up this week. Thanks.

 

[notnyt]

Man I love this amp, I hope it's not fried. I'll try and get some pics up this week. Thanks.

If your amp caught on fire, chances are it's dead.

 

[mcallister]

Damage doesn't look too bad. What do you guys think? Worth trying to fix?

 

[notnyt]

At least one transistor went, it's hard to see what else is damaged from those pics. Front side of PCB looks ok, can't see back side, or anything else. Take it to a competent repair shop.

 

[johnplayerson]

Even something small like that, no doubt requires the entire Board be removed from the heat sink to service. That means a lot of labor just to unscrew all the transistors, and detach the amplifier board. After it is fixed, it will need all new insulating grease and maybe some new mica insulators. This is a messy and time consuming job also. Most of the labor will be in removal and replace.

The Blown transistor will have to be replaced along with the directly opposite transistor on the other side. The emitter resistors for each, should be replaced at the same time. After that there is going to be something wrong somewhere else still. Probably a diode, and maybe a rectifier will have to be replaced also.

With all the labor remove and replace, if your cheap like me, you may want to consider a fix like this, 1200 watt board available on aliexpress, for 125.00 dollars. Just to keep her going.