Rockford Fosgate P5002

mike49504 · 23rd April 2010, 09:06 PM

Im rebuilding the power supply in this amp. According to the schematic they are using a 60.4 ohm gate resistor. Wondering if i could use 68 ohm resistors and be fine?

Perry Babin · 23rd April 2010, 10:14 PM

That's a rev. C schematic diagram. The rev. G shows 22.1 ohm resistors. I wouldn't go to 68. If you have 22.1s, that's what I'd suggest that you use. If you don't have them, you likely have 47 ohm resistors and those should work. If you have to order the resistors, order the 22.1 ohm resistors.

mike49504 · 24th April 2010, 12:46 AM

the 47's is what i have. The amp that i have sitting here does have the 60.4 ohm resistors in it but 2 of them were burnt the other two are still good .

So replace them with the 47's?

Perry Babin · 24th April 2010, 01:22 AM

Yes.

Dannie717 · 4th November 2010, 04:29 AM

Hey guys. I am also working on a RFp5002.How can I remove two output transistors (FQA28N15) from the heatsink block that they are attached to?

Perry Babin · 4th November 2010, 04:53 AM

You'll use a torch. Read the following post:
t30001bd schematics

23rd April 2010, 09:06 PM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Rockford Fosgate P5002 Im rebuilding the power supply in this amp. According to the schematic they are using a 60.4 ohm gate resistor. Wondering if i could use 68 ohm resistors and be fine?

23rd April 2010, 10:14 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	That's a rev. C schematic diagram. The rev. G shows 22.1 ohm resistors. I wouldn't go to 68. If you have 22.1s, that's what I'd suggest that you use. If you don't have them, you likely have 47 ohm resistors and those should work. If you have to order the resistors, order the 22.1 ohm resistors. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

24th April 2010, 01:22 AM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Yes. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

4th November 2010, 04:53 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	You'll use a torch. Read the following post: t30001bd schematics __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

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24th April 2010, 12:46 AM	#3
mike49504 diyAudio Member Join Date: Sep 2006	the 47's is what i have. The amp that i have sitting here does have the 60.4 ohm resistors in it but 2 of them were burnt the other two are still good . So replace them with the 47's?

4th November 2010, 04:29 AM	#5
Dannie717 diyAudio Member Join Date: Feb 2010	Hey guys. I am also working on a RFp5002.How can I remove two output transistors (FQA28N15) from the heatsink block that they are attached to?

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