Skar Audio 4500.1

[S Merlington]

Does anyone have a high res pic of this driverboard??

As you can see it has been messed with and not sure if the resistors are the correct value..

Simlar driverboards i have here do not have D3A on them but the rest of the driverboard looks very simalar but the values do not match up in the area that been messed with all other values between the driverboards are the same..

So wondering if anyone has a high res pic of this board or possibly can tell me if the values are correct or not..

 

[Perry Babin]

This is the best I have. Does it show what you need?

 

[ultra]

I have this one

 

[S Merlington]

Thanks Perry, and Ultra..

Got the amp up and running ..

Only question i have is the 3 pins on the driverboard where that jumper is. The amp will not power up with the jumper in the amp no matter what config i have it set

Is it ok to leave it out of the amp?

 

[S Merlington]

Put the amp back together without the jumper amp worked fine for. 5 mins then it got stuck in protection mode took the clamps back off the fets and outputs let the amp sit for 15 mins and it powers up and plays perfectly again..

Is that jumper needed on the power supply board or do I have another issue with this amp??

 

[Perry Babin]

For the jumper... The only amps that I've seen it in used it for high voltage protection. In one position it simply shorted two pins that were already shorted by the board. In the other position, it completed the circuit to the voltage sensing circuit.

 

[S Merlington]

Amp was playing fine then it protected on me I took the clamps off again let it sit for a bit and it powers up and plays fine again..

When it protected it drew 60 amps if current. But after it sat awhile the current draw is fine and it plays clean audio

Any ideas ?

 

[Perry Babin]

That sounds like an intermittently shorted transformer or an intermittent connection in the driver circuit for the FETs (audio or power supply).

Tap on the board and twist/push/pull on the transformers to see if you can replicate the fault.

 

[S Merlington]

Your correct its 1 of the transformers