Alpine MRP-M1000

[S Merlington]

Outputs are defective in this amp..

Im gonna order new IRF3415's for the amp and 2 IR2010S

Andthing else i should order for this the guy said it had no output and he was checking for rail voltage and the outputs blew when he slipped with the probe..

So the orginal problem was the amp powerd up but no sound..


So just wondering if i should order anything else??

 

[Perry Babin]

Sometimes, Q4901 and ZD4901 fail.

 

[Deadly Sones]

Back from the dead....

Perry I have one here (MRP-M1000) with Q4901 seems open on all legs (removed from board). Case has KD600K written on it. What is the exact part number? Where can I get another??? or is there a sub? Also you said possibly ZD4901 What part # is it? It seems to test fine in the circuit. Q3901 is good, I just removed it to use as a reference. Amp seemed to power up fine.. just had no output. And there was a small (-0.6 to -0.02vdc) voltage fluctuating up and down on the speaker terminals.

Thanks

 

[Perry Babin]

The KSA2690A should work but you'll need an insulator and heatsink compound.
http://datasheet.octopart.com/KSC2690AYS-Fairchild-Semiconductor-datasheet-33981.pdf
http://www2.kec.co.kr/data/databook/pdf/KTD/Eng/KTD600K.pdf


I won't answer any more questions in this tread unless asked by the OP.