Hifonics BXI-6000D

[Achim1409]

yes

 

[Perry Babin]

Re-check the newly replaced IC according to the diagram I posted. They are easily damaged by heat.

 

[Achim1409]

Maybe i got a Bad batch. Buyed from utsource.

 

[Achim1409]

I have installed the last two drivers i had. Both are not working. This time i used speacial solder equipment and was very careful not to overheat. Anyhow, i expect, i received counterfeit parts from ut source. I will order new parts from german seller.



Thanks a lot for assistance.


Achim

 

[Achim1409]

One question, The ir21844s is not available at the moment. Can i Use instead irs21844s?

 

[Perry Babin]

That's what I've been using.

 

[Achim1409]

So, continue. Got the parts, but another problem. Amp is not powering up. Found, that on the Driver Board for Power supply on VCC is only 2,3V. If i connect 12V on that pin amp is powering up and power supply is working. During that condition i checked audio driver board and now on both irs8442 i got only dc. But thats later. Where i have to look, to got 12vdc on that VCC Pin?

 

[Perry Babin]

Do you have 12v on the center terminal of the header for the driver board?

Does the collector of Q6 connect to pin 12 of the 494?

 

[Achim1409]

added some measurments to the picture

 

[Achim1409]

Hello,
i have +12V , Minus on earth and + 12V on REM. There is no connection between Q6 Collector to pin 11 of 494. (2,5kOhm)

 

[Perry Babin]

Pin 12 of the 494, not pin 11.

Which pin if the header for the driver board connects to the emitter of Q6?

 

[Achim1409]

Pin 12 is conected to Q6.

Emitter of q6 is going to Pin 5 of the Header (+12V)

 

[Perry Babin]

If you have 12v on that header pin and the emitter of Q6, is the base of Q6 about 1/2v lower than the emitter of Q6?

 

[Achim1409]

Emitter is +12v, Collector is 0V, Base is 2,7V

 

[Perry Babin]

It's defective.

 

[Achim1409]

Its Marked with BE, i expect BCX55 from Galaxy Electric. Don´t have that size and type, can i try a standard NPN?

 

[Perry Babin]

2SB1260. PNP

 

[Achim1409]

should i order some parts more, which often will be damaged on the driver cards?
I have now: IRS21844s
Lm211
MMBTA42, 92
ESG1

 

[Perry Babin]

Are you buying parts from a reputable/authorized distributor?

 

[Achim1409]

Yes, from farnell or mouser