rf 60x2 schematics?

marko · 10th January 2010, 11:11 AM

hi all, a friend of mine gave me an amp of his to look at for him, it has the following symtoms as described by him..

"i have a rf 60x2 with a duff channel (its just putting out DC and blowing speakers )

does anyone have the schematics so i could see whats going on with it, and repair it??

cheers"

to me it looks like it's been messed with before so i would like to know the correct parts for all the devices relating to the outputs.

marko · 10th January 2010, 11:53 AM

just had a look and as suspected one of the outputs are shot, it has irf540 and irf9540 for the output pair, that doesn't seam right to me but not sure so i ask

it's an irf9540 that has gone.

brandes.cm · 10th January 2010, 01:28 PM

I have schematics for the 60ix, I believe it to be the same as the x2. The output fets on the ix are 9540 and 540's.

cory

marko · 10th January 2010, 01:31 PM

ok, they seam to be the correct part. so i need an irf9540 or a suitable sub..

brandes.cm · 01:42 PM

Those parts are still available, I have a mess of 9540's. Mouser.com carries them less than $1 a piece. Don't know if that is an option in your location.

cory

If you would like the schematic I can send it.

marko · 16th January 2010, 05:42 PM

just looking for irf9540 now and most are coming up with irf9540n, is this usable? something tells me not but thought i'd ask 1st..

Perry Babin · 16th January 2010, 07:21 PM

There were some Rockford amplifiers that would not work with the 540N (original was 540). I don't know if this applies to the 9540s but if you can find the non-N version, it may save you a bit of trouble.

spooney · 16th January 2010, 07:33 PM

the 9540's and 540's can be found on ebay for about a dollar a piece. Look in the Activeparts ebay store. the 540n's were nothing but trouble in a rockford amp i worked on a few months ago.

marko · 17th January 2010, 09:39 AM

looking on ebay i see "p" and "n" channel versions, anyone know which is correct?

Perry Babin · 17th January 2010, 09:41 AM

The IRF540 is an N-channel.

The IRF9540 is a P-channel.

10th January 2010, 11:11 AM	#1
marko diyAudio Member Join Date: May 2004 Location: donnyuk	rf 60x2 schematics? hi all, a friend of mine gave me an amp of his to look at for him, it has the following symtoms as described by him.. "i have a rf 60x2 with a duff channel (its just putting out DC and blowing speakers ) does anyone have the schematics so i could see whats going on with it, and repair it?? cheers" to me it looks like it's been messed with before so i would like to know the correct parts for all the devices relating to the outputs.

10th January 2010, 01:39 PM	#5
brandes.cm diyAudio Member Join Date: Sep 2009	Those parts are still available, I have a mess of 9540's. Mouser.com carries them less than $1 a piece. Don't know if that is an option in your location. cory If you would like the schematic I can send it. Last edited by brandes.cm; 10th January 2010 at 01:42 PM.

16th January 2010, 07:21 PM	#7
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	There were some Rockford amplifiers that would not work with the 540N (original was 540). I don't know if this applies to the 9540s but if you can find the non-N version, it may save you a bit of trouble. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

17th January 2010, 09:41 AM	#10
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The IRF540 is an N-channel. The IRF9540 is a P-channel. __________________ 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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10th January 2010, 11:53 AM	#2
marko diyAudio Member Join Date: May 2004 Location: donnyuk	just had a look and as suspected one of the outputs are shot, it has irf540 and irf9540 for the output pair, that doesn't seam right to me but not sure so i ask it's an irf9540 that has gone.

10th January 2010, 01:28 PM	#3
brandes.cm diyAudio Member Join Date: Sep 2009	I have schematics for the 60ix, I believe it to be the same as the x2. The output fets on the ix are 9540 and 540's. cory

10th January 2010, 01:31 PM	#4
marko diyAudio Member Join Date: May 2004 Location: donnyuk	ok, they seam to be the correct part. so i need an irf9540 or a suitable sub..

16th January 2010, 05:42 PM	#6
marko diyAudio Member Join Date: May 2004 Location: donnyuk	just looking for irf9540 now and most are coming up with irf9540n, is this usable? something tells me not but thought i'd ask 1st..

16th January 2010, 07:33 PM	#8
spooney diyAudio Member Join Date: Dec 2006	the 9540's and 540's can be found on ebay for about a dollar a piece. Look in the Activeparts ebay store. the 540n's were nothing but trouble in a rockford amp i worked on a few months ago.

17th January 2010, 09:39 AM	#9
marko diyAudio Member Join Date: May 2004 Location: donnyuk	looking on ebay i see "p" and "n" channel versions, anyone know which is correct?

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