Hifonics brx2416.1d

[Perry Babin]

4 100k ohm resistors that are essentially in paralle lwill read about 25k. Pull one leg of all of the resistors on the side reading low to see if all are within tolerance. Then
(while the resistors are out) confirm that the gate to drain and gate to source read as open.

 

[rhempz01]

And yes there an andode connected that's the right side correct? Low side has the diode.
What placement do the recitfiers go? Just making sure I have them correct:

 

[rhempz01]

Still draws current. Without rectifiers gate look ok and I have 50.1vdc on all of the rectifier diode 1-3. 12.6vd drawing 1.05amps just the power supply. All the resistors and mosfets test good. With the soder bridge still draws supply down to 7.v and 5.67amps of current.

 

[Perry Babin]

The output of the positive rectifiers goes to a positive terminal on the rail caps. The negative output of the rectifier goes to the negative terminal on the rail caps.

Did you have the rectifiers in when the outputs were heating up?

Are the outputs still heating? Does the hottest output remain the hottest if you move it to a different location? Or does whatever FET you have in a particular location get the hottest?

 

[rhempz01]

Yes recifiers were in and the power supply fets heated up. Only one real hot and the one next to it. I pulled them and tested them in the tester and they tested good. What diode belongs in d12?

 

[rhempz01]

The diode I used shorted and the one that was there was blown in half.

 

[Perry Babin]

What diode did you use?

 

[rhempz01]

What are the OEM driver transistors on the driver cards for these amplifiers. This amplifier has a 2d in q4 a transistor MAX in Q5-Q6 and a 1D-Q2 2A-Q3. 2D-Q7.
One is shorted. What divers should be used in this amplifier?

 

[rhempz01]

Bzw06 was the diode I had

 

[Perry Babin]

I don't know what your diode was. I've seen the P6KE350 in some. The minimum breakdown voltage must be at least slightly more than rail-rail voltage.

 

[rhempz01]

I believe I have that diode as well perry. I will use it. What transistors should I use in the output board. There is just too many different transistors for me to tell what was on.

 

[Perry Babin]

Have you removed all of the transistors?

 

[rhempz01]

From the driver board? Or the outputs and power supply?

 

[Perry Babin]

You were asking about the transistors on the driver board. Post a photo of what you have and note what you need to know, referring to the photo.

 

[rhempz01]

Photo of the driver board. I was asking what transistors should be used in this board to ensure it is working properly. Q6, Q4, Q2 and Q3, Q5, Q7

 

[Perry Babin]

Do you believe that the components that are installed are the wrong components?

 

[rhempz01]

I looked up a few of the transistors and they the MAX are 80v rating. Just seems excessive. If I will only have at most +-15...so 30v for the drive signal filter transistors should be sufficient. And there are so many different transistors that the soder jionts do not appear factory. So I would like to use the original components.

 

[Perry Babin]

Some transistors are selected on features other than voltage and current. See attached. View full size (click, then click arrows in left bottom corner). This is from a different model but similar.

 

[rhempz01]

Just keeps going into protection now if I install the board. Proper voltage regulator that are working. Same original drivers. Only the ic is was new. Not sure if anything happened to it.

 

[rhempz01]

Found an out put that had turned diode. I removed it but still protection.