I need help with a Kicker DX700

chipper · 6th January 2009, 03:12 AM

It's a class D amp. the Gain control is broken off. I had bought it like that from ebay for $10. (haha) everything else is fine none of the mosfets are burned or nothing. just the Gain control. when i hooked it up it made a screaching loud sound so i turned it off quick. Any know the Value for that Gain control part? i have a broken DX350 that has burned MOSFETs i thought i'd take of that gain control and put it on there. Would that work? It's a 100k varial resistor trimmer knob believe. I wanted to take it to school to have my electronics teacher have a look at but im still on "vacation" :(. Please help me! thanks

alexclaire · 6th January 2009, 12:01 PM

Hi,
No problem to replace the broken pot with the one from the other amp...

Any value between 10k and 100k will do the job.

No risk at all, believe me !

Have a nice day.

Vacations are ending for me...

chipper · 7th January 2009, 12:31 AM

Thanks for the reply. I unsolder off the pot and connected it on nd when i hooked up the radio to it. The sound sounded really horrible with alot of "hissing" and scrathing noises. It still played music but with bad sound. Any ideas if i did it right? thanks

alexclaire · 7th January 2009, 06:21 PM

Hi,
Strange behaviour, a trim pot cannot bring distorsion...

input signal--------P
------------------O-----------output signal
ground -----------T

Whortless · 8th January 2009, 07:42 PM

Hi Chipper,

Your gain control circuit has a 4 pin header and the pot value is 10K. You should short circuit the 3-4 pins and connect the one end of the pot to this point. The mid point of the pot goes to pin 2 and the other end of pot goes to pin1.
And hence you did the original replacement of the gain control circuit. If you cannot understand the which pin is pin 1 and which is pin 4 you can make a basic test. Energize the amp and turn it on you must measure +15V from pin 1 to pin 3 and actually the pin 1 is on the left or right side of the header(If you have the male side of header the color is black for pin 1).

I hope, I could tell what I mean. Your amp use HIP4080 driver and HUF75693G3 mosfets for output.

Regards

Whortless · 8th January 2009, 07:45 PM

Oh sorry, I have forgotten to say! yes the gain control module of DX-350 is one to one replacement of DX-700( they are same).

6th January 2009, 03:12 AM	#1
chipper diyAudio Member Join Date: Oct 2008	I need help with a Kicker DX700 It's a class D amp. the Gain control is broken off. I had bought it like that from ebay for $10. (haha) everything else is fine none of the mosfets are burned or nothing. just the Gain control. when i hooked it up it made a screaching loud sound so i turned it off quick. Any know the Value for that Gain control part? i have a broken DX350 that has burned MOSFETs i thought i'd take of that gain control and put it on there. Would that work? It's a 100k varial resistor trimmer knob believe. I wanted to take it to school to have my electronics teacher have a look at but im still on "vacation" :(. Please help me! thanks __________________ Feel the PUNCH

7th January 2009, 12:31 AM	#3
chipper diyAudio Member Join Date: Oct 2008	Thanks for the reply. I unsolder off the pot and connected it on nd when i hooked up the radio to it. The sound sounded really horrible with alot of "hissing" and scrathing noises. It still played music but with bad sound. Any ideas if i did it right? thanks __________________ Feel the PUNCH

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
kicker DX700 problems	ben04srt	Car Audio	9	18th January 2009 10:05 PM
Kicker DX700 trouble	chipper	Car Audio	5	14th January 2009 08:45 PM
Kicker DX700 Problem	th3subtl3on3	Class D	2	14th April 2006 03:19 AM
Kicker DX700 classD; how can it drive a 1ohm load?	SHOdown	Class D	42	8th February 2005 12:22 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

6th January 2009, 12:01 PM	#2
alexclaire diyAudio Member Join Date: May 2005 Location: Avesnes/Helpe	Hi, No problem to replace the broken pot with the one from the other amp... Any value between 10k and 100k will do the job. No risk at all, believe me ! Have a nice day. Vacations are ending for me...

7th January 2009, 06:21 PM	#4
alexclaire diyAudio Member Join Date: May 2005 Location: Avesnes/Helpe	Hi, Strange behaviour, a trim pot cannot bring distorsion... input signal--------P ------------------O-----------output signal ground -----------T

8th January 2009, 07:42 PM	#5
Whortless diyAudio Member Join Date: Nov 2005 Location: Kocaeli,Turkey	Hi Chipper, Your gain control circuit has a 4 pin header and the pot value is 10K. You should short circuit the 3-4 pins and connect the one end of the pot to this point. The mid point of the pot goes to pin 2 and the other end of pot goes to pin1. And hence you did the original replacement of the gain control circuit. If you cannot understand the which pin is pin 1 and which is pin 4 you can make a basic test. Energize the amp and turn it on you must measure +15V from pin 1 to pin 3 and actually the pin 1 is on the left or right side of the header(If you have the male side of header the color is black for pin 1). I hope, I could tell what I mean. Your amp use HIP4080 driver and HUF75693G3 mosfets for output. Regards

8th January 2009, 07:45 PM	#6
Whortless diyAudio Member Join Date: Nov 2005 Location: Kocaeli,Turkey	Oh sorry, I have forgotten to say! yes the gain control module of DX-350 is one to one replacement of DX-700( they are same).

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)