MA AUDIO HK-4000D ,NO OUTPUT TO SUBS

WRENCH030380 · 7th March 2011, 04:33 PM

MA AUDIO HK-4000,NO OUTPUT TO SUBS
CHECKED
1- SUBS =GOOD
2-ALL FETS (MOSFETS) ARE IN THE MEGA OHMS
EXCEPT THE ONE ON THE LEFT SIDE OF THE BOARD THEY ARE IN 47.6 ? ALL ARE EQUAL THO ON LEFT SIDE, HAVE 4 FETS MSG33R AND MSG33S 2 OF EACH , CHARGDED THEM AND THE SWITCH THEY ARE ON THE RIGHT SIDE OF BOARD =GOOD
3-GOT POWER=GOOD
4-PROTECT LIGHT NOT ON =GOOD
5-NO BURNT SPOTS ON BOARD AT ALL TO OR BOTTOM LEFT OR RIGHT = GOOD
6-NOTHING LOOSE=GOOD
7-NO IN LINE FUSES=GOOD
8-DISPLAY SHOWS 13.8 VOLTS 71 DEGS AND SOUND INPUT BARS MOVING ON DISPLAY=GOOD
ANY INFO PLZ EMAIL ME AT SGTMAJWRENCH@YMAIL.COM

mike49504 · 9th March 2011, 02:02 AM

Did you test to see if the amp is producing both + - rail and regulated voltages?

WRENCH030380 · 9th March 2011, 10:40 PM

No I didn't check? Do I use my meter and what setting on the meter. All I know is I had power and input but nutting to subs and the subs were test and working with a different amp on same power and input wires

henjoyan · 11th March 2011, 07:05 AM

in my opinion the amp was triggered protect for some reasons,but it's a class d or class ab amplifier?

amc32 · 11th March 2011, 02:44 PM

check the cast metal speaker terminals at the circuit board. MA,PowerAcoustic,Audiobahn,Alphasonic ect,,, were notorious for breaking

WRENCH030380 · 11th March 2011, 10:39 PM

I checked them at the bored and there connected. But I can't get a connection from the - terminal anywhere else on the board only right at the connection of the speaker - terminal. The + terminal I can get a connection all the way to the otherside if the amp I will let. Know on village at the output termials tommorow I used continuity to check the connection in the amp btw

7th March 2011, 04:33 PM	#1
WRENCH030380 diyAudio Member Join Date: Mar 2011	MA AUDIO HK-4000D ,NO OUTPUT TO SUBS MA AUDIO HK-4000,NO OUTPUT TO SUBS CHECKED 1- SUBS =GOOD 2-ALL FETS (MOSFETS) ARE IN THE MEGA OHMS EXCEPT THE ONE ON THE LEFT SIDE OF THE BOARD THEY ARE IN 47.6 ? ALL ARE EQUAL THO ON LEFT SIDE, HAVE 4 FETS MSG33R AND MSG33S 2 OF EACH , CHARGDED THEM AND THE SWITCH THEY ARE ON THE RIGHT SIDE OF BOARD =GOOD 3-GOT POWER=GOOD 4-PROTECT LIGHT NOT ON =GOOD 5-NO BURNT SPOTS ON BOARD AT ALL TO OR BOTTOM LEFT OR RIGHT = GOOD 6-NOTHING LOOSE=GOOD 7-NO IN LINE FUSES=GOOD 8-DISPLAY SHOWS 13.8 VOLTS 71 DEGS AND SOUND INPUT BARS MOVING ON DISPLAY=GOOD ANY INFO PLZ EMAIL ME AT SGTMAJWRENCH@YMAIL.COM

11th March 2011, 07:05 AM	#4
henjoyan diyAudio Member Join Date: Jul 2010	in my opinion the amp was triggered protect for some reasons,but it's a class d or class ab amplifier? __________________ impossible is nothing

11th March 2011, 02:44 PM	#5
amc32 diyAudio Member Join Date: Mar 2008	check the cast metal speaker terminals at the circuit board. MA,PowerAcoustic,Audiobahn,Alphasonic ect,,, were notorious for breaking __________________ ...............I Hear in color.................

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9th March 2011, 02:02 AM	#2
mike49504 diyAudio Member Join Date: Sep 2006	Did you test to see if the amp is producing both + - rail and regulated voltages?

9th March 2011, 10:40 PM	#3
WRENCH030380 diyAudio Member Join Date: Mar 2011	No I didn't check? Do I use my meter and what setting on the meter. All I know is I had power and input but nutting to subs and the subs were test and working with a different amp on same power and input wires

11th March 2011, 10:39 PM	#6
WRENCH030380 diyAudio Member Join Date: Mar 2011	I checked them at the bored and there connected. But I can't get a connection from the - terminal anywhere else on the board only right at the connection of the speaker - terminal. The + terminal I can get a connection all the way to the otherside if the amp I will let. Know on village at the output termials tommorow I used continuity to check the connection in the amp btw

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