Rockford Fosgate R500X1D

[cajones65]

Would someone happen to know the part number to the 2 diodes, 1 zenor, and resistor that I have circled please and thank you. This is a Rockford Fosgate Prime R500X1D.

 

[Perry Babin]

What driver IC are they using for the audio?

This is in the audio section, isn't it?

 

[cajones65]

Yes sir it is in the output section. They are using the IRS20957S I believe.

 

[Perry Babin]

Can you confirm?

 

[cajones65]

Sorry for my wording Perry, it is an irs20957s

 

[Perry Babin]

Can you post a good quality photo of area around the diodes?

Why do you think the non-zener diodes are defective?

Did the outputs fail?

 

[cajones65]

Yes there was one blown output, and 2 blown rail caps, a the driver that is in the picture a BCP56, the zener is shorted and a resistor is burned crispy.
The diodes test shorted, I checked to see if they were in parallel with the resistors around them, they are not.

 

[Perry Babin]

OK. Well, I don't have anything similar that doesn't have those diodes in parallel with resistors, Actually series with a resistor and those two in parallel with a resistor.

See if Rockford can tell you what you need to know. If not, maybe someone else here can help.

 

[cajones65]

Thanks, I will try them Monday.

 

[seankane]

LL4148?


I know they are 4148 but not sure about the first prefix.

 

[seankane]

Check for the diagram the notes I have are the same amp but different year or revision.

 

[cajones65]

Thank you seankane, do you happen to know the voltage of the zener and value of the resistor?

 

[cajones65]

OK. Well, I don't have anything similar that doesn't have those diodes in parallel with resistors, Actually series with a resistor and those two in parallel with a resistor.

See if Rockford can tell you what you need to know. If not, maybe someone else here can help.

I tried Rockford, they said that they didnt have a BOM for this amp yet. So they couldn't help.