Burned board

[SirPaulGerman]

I was able to get a PS Audio 200CX, only $75, however one side is completely gone.
Can it be fixed?

 

[TimD]

I'd want to see the back. Soot from the burned resistor is largely irrelevant, and cleans easily. If the foils are undamaged, and there is no burning of the actual board, repair should not be that bad.

 

[8991XJ]

Yes, it can be fixed. The two boards appear identical so rip off the blowed up crap, clean and repair the board to like new, including any damaged traces and repopulate with new working components. Check anything not trashed by the burn and replace as needed.

 

[VSAT88]

I am watching. Lets see it done! Hopes for the best Pablo!

 

[WOPL Sniffer]

A bag of Eyelets for the through hole stuff and a trace foil kit, cut out the burned shit and mix up some epoxy and fill the hole where you cut out the burned shit. Hell, with a board to copy it's so easy a cave man could do it. We had a vacuum box to pull out the bubbles before putting them in the oven to cure overnight.

 

[VSAT88]

If anyone can the guys here can do it

 

[WOPL Sniffer]

If anyone can the guys here can do it

Yup, went through Connector/Board Repair Course which was part of the Itinerary with Micro-Miniature Repair Course (Solder School) in the Nav.

 

[mlucitt]

Somebody was listening at full volume into 2 Ohms...

 

[SirPaulGerman]

I am amazed that the fuse did not blow up too
Are those metal film resistors ?

 

[SirPaulGerman]

Got more pics of the bottom

 

[Vynuladikt]

someone plugged line voltage to the input?

 

[mr_rye89]

BAAAAAKED.....

 

[Vynuladikt]

After all, it does say AC Input on the RCA connectors. Never underestimate an idiot.

 

[8991XJ]

Oh, I missed putting in clean, clean, clean in the steps to restoration above. Some people.

 

[mlucitt]

Lee, do those picture qualify for a "Nuke" failure?

 

[J!m]

“Medium-well” I’d say.

 

[laatsch55]

Yep--。Nuklar!!

 

[SirPaulGerman]

How bad is it ? any hope to be fix it ?

Why does this amp has AC and DC inputs ?

Here is the test from the owner
I don’t see anything wrong with it , he told about the left side not working

 

[J!m]

I would guess the DC inputs make it DC coupled whereas the AC inputs have a brickwall somewhere above DC, like 10-15hZ or so.

 

[VSAT88]

Has a cap on the inputs to save it from DC voltage input from a preamp or whatever input. That amp will happily power up your speakers with whatever voltage input you send to it. No safety features there except for using the inputs.