mtx thunder81000d

timwebb · 26th May 2010, 06:20 AM

hey does anyone know what fet's that are used in the power supply and what resistors are in the gate? thanks

Perry Babin · 26th May 2010, 07:51 AM

Probably HUF75339 and 39.2 ohm.

Have the outputs failed?

timwebb · 26th May 2010, 01:12 PM

yes one side is burned up

Perry Babin · 26th May 2010, 01:13 PM

If the output transistors (SSP45N20A?) are blown, the amp may be VERY difficult to repair.

timwebb · 26th May 2010, 01:15 PM

yeah i see looking at it im not use to this lay out

timwebb · 26th May 2010, 01:42 PM

yes they are SSP45N20A are there any subs?

Perry Babin · 26th May 2010, 01:46 PM

I haven't found any but that doesn't mean that there aren't any. If you're repairing this for someone else, I'd recommend returning it to them as is.

timwebb · 26th May 2010, 03:00 PM

i checked the power supply they are good its the output that burned off

timwebb · 26th May 2010, 03:35 PM

whats the outputs on this amp i check they all were burned and some were in a bag of parts that came with the amp anyone has some good pic of the placement of parts on this amp?

timwebb · 26th May 2010, 05:02 PM

N323ab is the output transistors in this amp does this have any replacements? i cant find a data sheet no where.

26th May 2010, 06:20 AM	#1
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	mtx thunder81000d hey does anyone know what fet's that are used in the power supply and what resistors are in the gate? thanks

26th May 2010, 07:51 AM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Probably HUF75339 and 39.2 ohm. Have the outputs failed? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

26th May 2010, 01:13 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	If the output transistors (SSP45N20A?) are blown, the amp may be VERY difficult to repair. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

26th May 2010, 01:46 PM	#7
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	I haven't found any but that doesn't mean that there aren't any. If you're repairing this for someone else, I'd recommend returning it to them as is. __________________ 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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26th May 2010, 01:12 PM	#3
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	yes one side is burned up

26th May 2010, 01:15 PM	#5
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	yeah i see looking at it im not use to this lay out

26th May 2010, 01:42 PM	#6
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	yes they are SSP45N20A are there any subs?

26th May 2010, 03:00 PM	#8
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	i checked the power supply they are good its the output that burned off

26th May 2010, 03:35 PM	#9
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	whats the outputs on this amp i check they all were burned and some were in a bag of parts that came with the amp anyone has some good pic of the placement of parts on this amp?

26th May 2010, 05:02 PM	#10
timwebb diyAudio Member Join Date: Jan 2010 Location: memphis tn	N323ab is the output transistors in this amp does this have any replacements? i cant find a data sheet no where.

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