MA AUDIO HK-4000D ,NO OUTPUT TO SUBS - diyAudio
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Old 7th March 2011, 04:33 PM   #1
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Default 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
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Old 9th March 2011, 02:02 AM   #2
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Did you test to see if the amp is producing both + - rail and regulated voltages?
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Old 9th March 2011, 10:40 PM   #3
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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
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Old 11th March 2011, 07:05 AM   #4
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in my opinion the amp was triggered protect for some reasons,but it's a class d or class ab amplifier?
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Old 11th March 2011, 02:44 PM   #5
amc32 is offline amc32  United States
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check the cast metal speaker terminals at the circuit board. MA,PowerAcoustic,Audiobahn,Alphasonic ect,,, were notorious for breaking
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Old 11th March 2011, 10:39 PM   #6
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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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