Rockford Fosgate T5002

mike49504 · 29th January 2012, 03:46 AM

I got one of theese in for repair..

The guy says that if he turns the gain up at all the amp will go into protection mode ..

Any ideas?

timwebb · 29th January 2012, 03:52 AM

with a load on it?

mike49504 · 29th January 2012, 04:04 AM

Ok i just looked at this amp ..

I found 1 problem already there is 38 volts of rail on the left channels output.

2nd thing is someone has messed with this before ..

The outputs that are in it dont look right to me but maybe im wrong..

The outputs that are in it now are FQA36P15 and FQA46N15

Does anyone know if theese are the correct outputs??

timwebb · 29th January 2012, 04:09 AM

those are the ones i have in mine

mike49504 · 29th January 2012, 04:13 AM

Ok Thanks I just removed the Mesha board for the left channel I will test the outputs and see if any are leaking..

mike49504 · 29th January 2012, 04:18 AM

Just tested the outputs all test fine for the left channel..

Any ideas where to check next since i have 38 volts on the output termianls for the left channel ?

mike49504 · 29th January 2012, 04:45 AM

Ok nevermind I found the problem and fixed it...

seankane · 29th January 2012, 05:35 AM

What was the problem?

mike49504 · 29th January 2012, 07:08 AM

Bad solder joints on some of the smd transistors

29th January 2012, 03:46 AM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Rockford Fosgate T5002 I got one of theese in for repair.. The guy says that if he turns the gain up at all the amp will go into protection mode .. Any ideas?

29th January 2012, 05:35 AM	#8
seankane diyAudio Member Join Date: May 2010 Location: Washington State	What was the problem? __________________ Pyramid 46 Amp Power Supply----Fluke 787 Processmeter----Tektronix 465 Scope----Velleman HPS40 Scope----Soldering Iron----Desoldering Iron----Hejet HJ 500-S Heatgun----DM4070 Digital LCR Meter----Propane Torch

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29th January 2012, 03:52 AM	#2
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	with a load on it?

29th January 2012, 04:04 AM	#3
mike49504 diyAudio Member Join Date: Sep 2006	Ok i just looked at this amp .. I found 1 problem already there is 38 volts of rail on the left channels output. 2nd thing is someone has messed with this before .. The outputs that are in it dont look right to me but maybe im wrong.. The outputs that are in it now are FQA36P15 and FQA46N15 Does anyone know if theese are the correct outputs??

29th January 2012, 04:09 AM	#4
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	those are the ones i have in mine

29th January 2012, 04:13 AM	#5
mike49504 diyAudio Member Join Date: Sep 2006	Ok Thanks I just removed the Mesha board for the left channel I will test the outputs and see if any are leaking..

29th January 2012, 04:18 AM	#6
mike49504 diyAudio Member Join Date: Sep 2006	Just tested the outputs all test fine for the left channel.. Any ideas where to check next since i have 38 volts on the output termianls for the left channel ?

29th January 2012, 04:45 AM	#7
mike49504 diyAudio Member Join Date: Sep 2006	Ok nevermind I found the problem and fixed it...

29th January 2012, 07:08 AM	#9
mike49504 diyAudio Member Join Date: Sep 2006	Bad solder joints on some of the smd transistors

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