Rockford Fosgate Power 100hd service manual?

shawnk · 8th May 2010, 04:28 PM

I now it's a long shot, I thought I would check. Thanks a bunch!

Perry Babin · 8th May 2010, 06:07 PM

Are you sure it's a 100HD?

shawnk · 8th May 2010, 06:30 PM

Yes sir! Old school for sure. It's the 4ch version of the 30hd.

Perry Babin · 8th May 2010, 06:37 PM

Generally, the only practical way to repair those it to replace the modules. All of the ones I've seen had too many problems to repair the modules. The ebay seller dealsbyjason may have the modules but he doesn't list them often. You have to contact him through ebay to see if he has them.

shawnk · 8th May 2010, 06:53 PM

I have purchased boards from him before. Maybe I'll check with him. I'm really bumm'n since I bought this amp "new" and found that all of the 10uf caps on the smd board were leaking and one channel had ~10v across it's leads. I replaced all of the caps, two op amps, and three channels worked great. After the fix, the bad channel had ~6v ac and would produce static through a speaker. Then I shorted something (rookie mistake!!) as I didn't realize I still had power applied to the amp and now all outputs appear to have full rail voltage ~20v. Thanks for the input Perry. I'm not sure what I should do at this point. I can't even reference the fets in this amp: R8939 & R8943 (outputs) R8944 (power supply) 8932 (voltage regulator ??). I might be s.o.l. here..lol

8th May 2010, 04:28 PM	#1
shawnk diyAudio Member Join Date: Dec 2009	Rockford Fosgate Power 100hd service manual? I now it's a long shot, I thought I would check. Thanks a bunch!

8th May 2010, 06:07 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Are you sure it's a 100HD? __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

8th May 2010, 06:37 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Generally, the only practical way to repair those it to replace the modules. All of the ones I've seen had too many problems to repair the modules. The ebay seller dealsbyjason may have the modules but he doesn't list them often. You have to contact him through ebay to see if he has them. __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

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8th May 2010, 06:30 PM	#3
shawnk diyAudio Member Join Date: Dec 2009	Yes sir! Old school for sure. It's the 4ch version of the 30hd.

8th May 2010, 06:53 PM	#5
shawnk diyAudio Member Join Date: Dec 2009	I have purchased boards from him before. Maybe I'll check with him. I'm really bumm'n since I bought this amp "new" and found that all of the 10uf caps on the smd board were leaking and one channel had ~10v across it's leads. I replaced all of the caps, two op amps, and three channels worked great. After the fix, the bad channel had ~6v ac and would produce static through a speaker. Then I shorted something (rookie mistake!!) as I didn't realize I still had power applied to the amp and now all outputs appear to have full rail voltage ~20v. Thanks for the input Perry. I'm not sure what I should do at this point. I can't even reference the fets in this amp: R8939 & R8943 (outputs) R8944 (power supply) 8932 (voltage regulator ??). I might be s.o.l. here..lol

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