ma audio hk-4000 ,no sound to subs ?MA AUDIO HK-4000,NO OUTPUT TO SUBS - diyAudio
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Old 7th March 2011, 05:29 PM   #1
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Default ma audio hk-4000 ,no sound to subs ?MA AUDIO HK-4000,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 ON 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 7th March 2011, 06:08 PM   #2
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2- that mosfet is fried
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Old 8th March 2011, 12:38 AM   #3
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Default ma audio hk-4000

what mosfets are bad ? there is bout 45 of them, half read mega ohms 1075 and the other half read 47.6 and 4 of them are the msg33r and msg33s , are they all suppost to read in the mega ohms? ,does anyone have the schematics or diagram on what this amp mosfets are suppost to read on a meter?
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