Kicker zx1000.1 burnt resistor

[bl4ckw1d0w]

Just started this kicker zx1000.1 which has a date stamp of 2/17/2008.

Q106 and Q108 (IRF264N) are shorted Drain and source.

R62 looks burnt.

R70 completely unrecognizable. I'm guessing it's a jumper? Which diagram I should be referencing for this one if there is one i might be missing it.

 

[jkrokenberger]

I've not seen jumpers burn like that. They are usually a cylinder and not hourglass shaped as well. Maybe someone can help with component ID.

 

[Perry Babin]

I have a 0 ohm jumper for R70. It may have been a 1k resistor in some amps. PapaZBill will know for certain.

For R62. It's likely a pulldown resistor and 10k ohms. It's virtually impossible to burn a 10k resistor there.

The amp may have had a speaker wire short to ground.

 

[rhempz01]

R70 is a 0 ohm resistor.

 

[bl4ckw1d0w]

I found my answer here. Must of missed this thread:

Kicker zx1000.1 humming

Thank you for the reassurance.

 

[PapaZBill]

R70-0 ohm resistor is a fuseable link between speaker and power ground to prevent damage to the ground trace and board.

It's not uncommon for two or three of the outputs IRF264N short. Replacing all four outputs and R70 should be the fix.

R62-10k ohm as Perry said is a pulldown resistor for the mosfet drivers Q24-2SD667 and Q25-2SB647. Check all four drivers including Q26-2SB647 and Q27-2SD667. Replace R62,R63 and drivers if necessary.