Hifonics BXI 2610D

mike49504 · 21st September 2010, 02:37 AM

Im rebuilding the power supply in this amp.

It is using C3228 drivers in the supply .

Will the C2383 work in its place?

Perry Babin · 21st September 2010, 06:14 PM

The sub should work.

Are you sure that they have failed? The NPN driver transistors very rarely fail.

mike49504 · 21st September 2010, 07:00 PM

They didnt fail the problem is someone tryed working on this amp and broke 1 of the legs off the 3228.

gizmo1961 · 13th June 2011, 04:49 PM

Hello I have a BXI2610D amplifier and the driver transistors went out causing the IRFP064N mosfets to blow in the power supply. I replaced the drivers with NTE 31 and NTE 32. Then I replaced the mosfets. The amp worked fine for a while and then the same issue occured. Could the PWM circuit be failing causing the rest of my problems to reoccur? I would like to fix this amp once and for all being as its a great amp. Any input would be greatly appreciated. Thanks.

mike49504 · 13th June 2011, 05:07 PM

In my honest opinion. Never use NTE parts in amps they are usually expensive and alot of amps do not like NTE parts..

When you order the power supply fets also order BD139's and BD140's for replacements for the drivers.. Ive used them in alot of amps and so has Perry and never had a problem with them.

Also before u order the parts make sure u also check the gate resistors for the power supply fets and make sure they are within tolorance..

gizmo1961 · 13th June 2011, 05:32 PM

Thanks mike. I already picked up the NTE parts at a local parts store but i will return them to get the ones you stated. I haven't checked the gate resistors but will do so. Can you tell me what value they should be? I don't have an oscilloscope yet so i have to get one of those too. I want to make sure the waveform coming from the drivers is correct before putting in all of the FETs. Thanks again. Im just learning electronics so this is my first project and it was fixed once so i know i can do it again

gizmo1961 · 13th June 2011, 05:41 PM

I am looking at BD139 and BD140. They are sold in matced sets of two each or I could purchase them individually. Does it matter if they are matched?

mike49504 · 13th June 2011, 06:09 PM

I cant remember right off hand what the value of the gate resistors are what are the numbers on them?

Perry Babin · 13th June 2011, 07:03 PM

The drivers don't have to match. Matching is required for parallel components. The drivers are not in a parallel configuration.

gizmo1961 · 13th June 2011, 10:56 PM

I have all the fets removed and got the BD 139 and BD 140 drivers in place. The voltage at each gate pad reads +4.15 and -8.8 volts. Is this correct? I will post pics of the waveform by the weekend if I can get a scope. Also should the zener diodes at each end of the mosfet banks be replaced? Not sure if they are good but i didn't replace them last time and the amp worked flawlessly until the power supply melted down again.

21st September 2010, 02:37 AM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Hifonics BXI 2610D Im rebuilding the power supply in this amp. It is using C3228 drivers in the supply . Will the C2383 work in its place?

21st September 2010, 06:14 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The sub should work. Are you sure that they have failed? The NPN driver transistors very rarely fail. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

13th June 2011, 07:03 PM	#9
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The drivers don't have to match. Matching is required for parallel components. The drivers are not in a parallel configuration. __________________ 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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21st September 2010, 07:00 PM	#3
mike49504 diyAudio Member Join Date: Sep 2006	They didnt fail the problem is someone tryed working on this amp and broke 1 of the legs off the 3228.

13th June 2011, 04:49 PM	#4
gizmo1961 diyAudio Member Join Date: Jun 2011	Hello I have a BXI2610D amplifier and the driver transistors went out causing the IRFP064N mosfets to blow in the power supply. I replaced the drivers with NTE 31 and NTE 32. Then I replaced the mosfets. The amp worked fine for a while and then the same issue occured. Could the PWM circuit be failing causing the rest of my problems to reoccur? I would like to fix this amp once and for all being as its a great amp. Any input would be greatly appreciated. Thanks.

13th June 2011, 05:07 PM	#5
mike49504 diyAudio Member Join Date: Sep 2006	In my honest opinion. Never use NTE parts in amps they are usually expensive and alot of amps do not like NTE parts.. When you order the power supply fets also order BD139's and BD140's for replacements for the drivers.. Ive used them in alot of amps and so has Perry and never had a problem with them. Also before u order the parts make sure u also check the gate resistors for the power supply fets and make sure they are within tolorance..

13th June 2011, 05:32 PM	#6
gizmo1961 diyAudio Member Join Date: Jun 2011	Thanks mike. I already picked up the NTE parts at a local parts store but i will return them to get the ones you stated. I haven't checked the gate resistors but will do so. Can you tell me what value they should be? I don't have an oscilloscope yet so i have to get one of those too. I want to make sure the waveform coming from the drivers is correct before putting in all of the FETs. Thanks again. Im just learning electronics so this is my first project and it was fixed once so i know i can do it again

13th June 2011, 05:41 PM	#7
gizmo1961 diyAudio Member Join Date: Jun 2011	I am looking at BD139 and BD140. They are sold in matced sets of two each or I could purchase them individually. Does it matter if they are matched?

13th June 2011, 06:09 PM	#8
mike49504 diyAudio Member Join Date: Sep 2006	I cant remember right off hand what the value of the gate resistors are what are the numbers on them?

13th June 2011, 10:56 PM	#10
gizmo1961 diyAudio Member Join Date: Jun 2011	I have all the fets removed and got the BD 139 and BD 140 drivers in place. The voltage at each gate pad reads +4.15 and -8.8 volts. Is this correct? I will post pics of the waveform by the weekend if I can get a scope. Also should the zener diodes at each end of the mosfet banks be replaced? Not sure if they are good but i didn't replace them last time and the amp worked flawlessly until the power supply melted down again.

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