Hifonics Brutus Bxi 2006D in protect

[bigpun4fubu]

ok sir

 

[bigpun4fubu]

Q210 leg 1

Q210 leg 2

Q210 leg 3

 

[Perry Babin]

Are you sure that you have the settings right? It appears that the variable controls are not at the fully clockwise position. I can't see the others.

 

[bigpun4fubu]

ill repost i just noticed that , the volts/div was set at 2 with x10 on my probe on and time/div was 2ms ill fix the variables and retest have posted by tomorrow afternoon

 

[Perry Babin]

Did you have it on DC coupling?

If you unplug both probes, does the trace go parallel to the reference line?

 

[bigpun4fubu]

i had it on dc coupling, but the trace was crooked because rotation was off ive adjusted it now

 

[Perry Babin]

If it was on DC coupling, the amp isn't producing rail voltage. Is the power supply working?

 

[bigpun4fubu]

Q210 Leg1

Q210 Leg2

Q210 Leg3

 

[bigpun4fubu]

Video of oscope waveform

Hifonics 2006D rail rail oscillation test for diy audio.com - YouTube

 

[bigpun4fubu]

was getting rail voltage , the probe of meter slipped and shorted an output fet while checking i need to check those and replace the bank of outputs it will blow 10a fuse on power up now oops

 

[Perry Babin]

If the amp was producing rail voltage, the trace should deflect either up or down when you touch the probe to it.

Does the trace deflect up and remain up when you touch the scope probe to the positive terminal of your 12v power supply?

 

[bigpun4fubu]

the trace deflects up and stays up when connected to 12v power supply

 

[Perry Babin]

Post a photo of the center leg of the power supply FETs. Set the scope to 10us and 10v/div.

 

[bigpun4fubu]

the probe of meter slipped and shorted an output fet while checking i need to check those and figure out why its blowing my 10a fuse in my power supply, anny suggestions? ive removed and tested the output fets so far they are good but drain and source legs (2 and 3) read shorted and solder pads read shorted with fets removed... 4 fets on one side tested bad after further analysis after i get the replacements in a few days ill check the power supply fets

 

[Perry Babin]

Check D202 near the drivers for the audio outputs.