Matrix U2000

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   Hi ive got a Matrix U2000 in the old grey style 3U case. Its pcb is very similar to the STR2000 with the markings "MATRIX M2000 ARH" Its been a great amp but one of the young lads that came doing a show with me pluged the speakon conector comming from the Matrix into the turbosound link that was being powered by a crown macrotech at the time. So the Crown went into protect but unfortunatly the Matrix seems to have died. The front led's dont seem to do anything anymore.

Im a very much used to dealing with broken amps and have built many valve amps my self from scratch. Mosfet amps ive worked on normally camo down to being a few output fet's or a few caps but this seems it has a microcontroller in the from pcb. Ive done my fair share of micro programming in my time and would like to have a schematic to aid in replicating its fucntions should the need arrise. Im off now to check the voltage and see If I can get any signs of life from the micro.

I know that what has happend to the amp is to most including me a very stupid thing but the kids have to make mistakes from witch to learn but if anyone has had this issue before any input is very much welcome.

Cheers in advance Kris

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kanks Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 26 April 2012 Location: Manchester Status: Offline Points: 135	Post Options Post Reply Quote kanks Report Post Thanks(0) Quote Reply Topic: Matrix U2000 Posted: 26 April 2012 at 6:03pm
	Hi ive got a Matrix U2000 in the old grey style 3U case. Its pcb is very similar to the STR2000 with the markings "MATRIX M2000 ARH" Its been a great amp but one of the young lads that came doing a show with me pluged the speakon conector comming from the Matrix into the turbosound link that was being powered by a crown macrotech at the time. So the Crown went into protect but unfortunatly the Matrix seems to have died. The front led's dont seem to do anything anymore. Im a very much used to dealing with broken amps and have built many valve amps my self from scratch. Mosfet amps ive worked on normally camo down to being a few output fet's or a few caps but this seems it has a microcontroller in the from pcb. Ive done my fair share of micro programming in my time and would like to have a schematic to aid in replicating its fucntions should the need arrise. Im off now to check the voltage and see If I can get any signs of life from the micro. I know that what has happend to the amp is to most including me a very stupid thing but the kids have to make mistakes from witch to learn but if anyone has had this issue before any input is very much welcome. Cheers in advance Kris

AM55 Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Registered User Joined: 16 August 2007 Location: Derbyshire Status: Offline Points: 1269	Post Options Post Reply Quote AM55 Report Post Thanks(0) Quote Reply Posted: 26 April 2012 at 6:14pm
	The designer/manufacturer Andy is member "andyamp" on here so might be worth a PM to him or he may well reply to your post.
	A n t i m u t e S o u n d S y s t e m

kanks Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 26 April 2012 Location: Manchester Status: Offline Points: 135	Post Options Post Reply Quote kanks Report Post Thanks(0) Quote Reply Posted: 26 April 2012 at 6:48pm
	That will be a great if he can help. Ive just checked the voltage going to the pic16c71 micro and im only getting 1.3 volts and the pic16c71 needs 2.5 to 6 volts to run so im now trying to track down its regulator.

djeddie Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 April 2004 Location: Bristol Status: Offline Points: 2667	Post Options Post Reply Quote djeddie Report Post Thanks(0) Quote Reply Posted: 26 April 2012 at 9:25pm
	Unfortunately you won't be able to PM andyamp until you've reached ten posts (or points), but hopefully he'll see the thread.
	Chas n Dave : it's like Drum and Bass but with beards. E=mc² ±3dB

kanks Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 26 April 2012 Location: Manchester Status: Offline Points: 135	Post Options Post Reply Quote kanks Report Post Thanks(0) Quote Reply Posted: 25 May 2012 at 2:07pm
	Just to let people know how I got on with this. I found that one of the relays had been destroyed and the 5 volt rail was shorted somehow inside. Removed the relay and the amp jumped back to life but the db meter dosnt work but I think ths because the micro on the fron panel is dead. It gets good signals for left and right to the ADC channels but the micro dosnt drive the leds. Anyway on the scope the amp runs identical right upto clip both sides and the clip lights still work so its looking like its lived to fight another day. I may even program a new microcontroller to do the output metering myself when I get some time. Anyway now im on to working on a macrotech 1200 thats got a shorted bank of transistors.

cilla.scope Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Legs all the way to her bottom.... Joined: 02 October 2009 Status: Offline Points: 2954	Post Options Post Reply Quote cilla.scope Report Post Thanks(0) Quote Reply Posted: 26 May 2012 at 1:45am
	send him an email, I think theres an email address on his website http://www.matrixamplification.com/ I know he was having a clear out recently .. if you want a LED driver board, this may be a good time to get in touch before the skip man commeth!!
	My girlfriend thinks I'm a stalker. Well, she's not exactly my girlfriend yet ...

kanks Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 26 April 2012 Location: Manchester Status: Offline Points: 135	Post Options Post Reply Quote kanks Report Post Thanks(0) Quote Reply Posted: 26 May 2012 at 4:47pm
	Just sent them a email will see if they get back to me.Thank for the heads up