Hifonics BXI1606D

Hello again, this time requesting your help with a hifonics bxi1606d amplifier, this amplifier had damaged the power supply mosfets once the driver transistors were checked, the source was repaired with voltages of 62 and -62, the amplifier apparently turned on correctly but when checking I did not get audio on the output, I suspect the HIP4080HIP these are the voltages

1-12.07
2-12.89
3-12.89
4 0
5- 7.12
6-6.17
7-6.08
8-5.27
9-5.27
10- 12.3
11-10.3
12-10.93
13-0
14-0
15-12.8
16-12.8
17-0
18- 0
19-10.84
20-10.84

the hip gets hot, another IC that gets hot to is the IC4C lm833n
the voltages are:
1-6.8
2-6.68
3-6.68
4-0
5-6.84
6-6.84
7-6.70
8-12.93

unfortunatelly i do not have a good scope

I already decided that I am going to buy an oscilloscope, I hope you can also help me with the decision, I am between buying a USP PC oscilloscope type hantek or a similar one that has 2 channels of 20 mhz or a handheld of a single channel of 100 mhz (like the FNIRSI-1C15) I think that either of the two can serve me, but I can't decide, one has the advantage of two channels but only up to 20 MHz, the other is a channel but up to 110 MHz.

I appreciate your comments, about the amplifier and I appreciate your recommendations of which oscilloscope should buy
 
aditional voltages

sorry i forgot to post the 3013 voltages i know is dificult to torubleshoot the amp without scope i hope i be able to buy one soon

4013 voltages:

1-0
2-12.9
3-12.9
4-0
5-12.9
6-0
7-0
8-2.14
9-1.82
10-2.20
11-12.87
12-12.9
13-12.9
14-12.9


i know pin 3 shoul be near to 0 volts tfor the hip4080 to operati and my pin 3 is high

cuold ths high condition caused by the pin 2 of the 4013?
 
Are the outputs in the circuit?

If you're going to buy a USB scope, the OWON VDS1022I (<<< I is very important). The Isolated input makes it easier to use for viewing gate signals that are not referenced to ground.

If you can find a CRT based scope in good working order for a decent price, that's the way I'd go. The clean trace that you generally can't get with an LCD based scope is what I want when I use a scope. The fancy readouts are absolutely not necessary.
 
Green. (Just after the startup protection process end the red led turns off (protection 2 pin led) , and the three pin led turn on green, a few mili seconds after the green led turns on , the speaker relay turns on.)
 
Last edited:
No. after the red leds turns off, the green led start blinking and it is blinking two or three times while this happen the voltage increase from cero to about four volts then to about 9 Volts and finally when the led stop blinking and stays green the voltage is 12volts.
Not always the green led blinks sometimes goes being off (two pin red led on) to solid green, most of the times this ocurs when I connect again the remote a few seconds between conecting and disconecting remote to 12 volts
 
Last edited:
If the pin 3 start a12 volts, then something mut send it to ground to operate?, or in the startup process is the chip do not detect problems it goes to cero automática lily?
I mean the hip8040 dependes of an external circuit to have 0volts in pin 3?
 
No, I'm not controling this voltage, not conecting battery voltage.

Excuse me if i was not clear.
My question was, the pin 3 outputs12 volts when the chip detects a problem??? I understan 12 volts presnt in pi. 3 indicates a problem but.
I wonder if a signal inputs that 12 volts, and the amp must send to ground the pin to operate normally? So the

One of the two condition is correct, I do not know what it is, maybe the 12volts in pin 3 indicate protection, and the only way to achieve 0 volts in pin 3 is correcting another audio stage problem, can you confirm this?
Because the other option I was tinkhing is that some protection signal send to ground to pin 3.(chip internally or not?)

Excuse my bad english please
 
Yes, I think so, that I was tryng to ask in my previous posts, but my bad english did not let me explain my self correctly.
There is a path line from pin 2 of the 4013 to pin 3 of the hip4080. 0 ohms between pin 2 (4013). And pin 3(hip4080).
 
It is a bit different in this amp the prot LED is not control led by the 4013. The 3pin led is controlled totally by 4013
I attached a picture so you can see,

Thank you
 

Attachments

  • DSC_0451.jpg
    DSC_0451.jpg
    859.1 KB · Views: 94
  • DSC_0452.jpg
    DSC_0452.jpg
    856.1 KB · Views: 92
Last edited: