Cerwin Vega Amp

mike49504 · 26th August 2011, 02:09 PM

Wondering if there is a good sub for an MJE340 ?

Perry Babin · 26th August 2011, 05:27 PM

How is it being used?

mike49504 · 26th August 2011, 08:50 PM

The 3rd legs goes to a diode then the other side of the diode goes to the outputs..

C3526

So guessing its the driver for the outputs..

Perry Babin · 26th August 2011, 10:14 PM

What's the voltage rating of the rail caps?

mike49504 · 27th August 2011, 12:49 AM

63 volts

Perry Babin · 27th August 2011, 12:58 AM

The KSC2690A may be a good sub.

mike49504 · 29th August 2011, 07:03 AM

Ok i put the 2690A in the amp..

Amp will power up after a fews secs it will start drawing excessive current then go into protection mode and then power back up and draw current then back in protection..

The amp will do this over and over..

Any ideas??

mike49504 · 29th August 2011, 07:35 AM

Ok im guessing the amp doesnt like the 2690A since the outputs will get red hot..

The orginal drivers says JE340...

Wondering if you have any ideas on what other transistor might work in the amp for right now so i can do some trouble shooting??

Perry Babin · 29th August 2011, 07:39 AM

Post a photo of the inside of the amp.

26th August 2011, 02:09 PM	#1
mike49504 diyAudio Member Join Date: Sep 2006	Cerwin Vega Amp Wondering if there is a good sub for an MJE340 ?

26th August 2011, 05:27 PM	#2
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	How is it being used? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

26th August 2011, 10:14 PM	#4
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	What's the voltage rating of the rail caps? __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

27th August 2011, 12:58 AM	#6
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	The KSC2690A may be a good sub. __________________ Links >> Basic Car Audio Amp Repair --- Basic Car Audio Electronics --- Basic Transistor Testing --- Basic Switching Power Supply Design --- Basic Computer Skills << Links

29th August 2011, 07:39 AM	#9
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	Post a photo of the inside of the amp. __________________ 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 August 2011, 08:50 PM	#3
mike49504 diyAudio Member Join Date: Sep 2006	The 3rd legs goes to a diode then the other side of the diode goes to the outputs.. C3526 So guessing its the driver for the outputs..

27th August 2011, 12:49 AM	#5
mike49504 diyAudio Member Join Date: Sep 2006	63 volts

29th August 2011, 07:03 AM	#7
mike49504 diyAudio Member Join Date: Sep 2006	Ok i put the 2690A in the amp.. Amp will power up after a fews secs it will start drawing excessive current then go into protection mode and then power back up and draw current then back in protection.. The amp will do this over and over.. Any ideas??

29th August 2011, 07:35 AM	#8
mike49504 diyAudio Member Join Date: Sep 2006	Ok im guessing the amp doesnt like the 2690A since the outputs will get red hot.. The orginal drivers says JE340... Wondering if you have any ideas on what other transistor might work in the amp for right now so i can do some trouble shooting??

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