Hifonics pwm board 2610 081013

[Mjimenez]

Hello colleagues, I am looking for the name of this transistor (Q2) if someone could provide it to me, it would be very helpful greetings is for a hifonics amplifier Model RE1600.1d greetings

 

[Perry Babin]

2SB1260

 

[Mjimenez]

thank you Mr. Perry, I will see if I can not find who sells it in my village ... will there be a replacement?

 

[Mjimenez]

Mr. Perry I already got the transistor, thanks for the info but I have more problems the amplifier is in protection and I have the amplification stage out of the board, already check the PS fets and they are in good condition I realize that pin 3 of the 494 is higher, I don't know what is causing it, I see that the voltage of pin 1 is higher than 2 But I can't discover the cause, what else should I check?

 

[Perry Babin]

What audio driver board does it use?

 

[Mjimenez]

2610 PWM 081013

 

[Perry Babin]

The attached diagram may be close enough. If so, I'd start by checking Q226.

 

[Mjimenez]

Thanks
Now the part of Ps has already been solved, but now in the output stage the board has too many problems sorry for focusing on the foreground only to the PS stage but apparently this amplifier has a monstrous disorder, on the output driver board fast the resistors flew 8,34,35,26 and the D1 so when they turned on they flew, it remains to replace them and investigate the root cause and in the case of diode 1 which one did he place? what model?

 

[Perry Babin]

Flew? Blew?

D1 is a standard 1N4148 type diode.

Replace all of the transistors along the top of the board (Q7, 11, 19, 22).

Get the drive circuit working properly before installing the outputs.

 

[Mjimenez]

Are these? (marked with red). I already checked them out of the board, but I'll see to get them

 

[Perry Babin]

That's not the 2610 audio driver board. Is that what you have?

 

[Mjimenez]

81013 output stage driver and for PS Stage is 2610 PWM 081013 and yes i have this

 

[Perry Babin]

That's not the model number for the board. The attached diagram is for the 1200 board.

I'd suggest only replacing the two transistors indicated by the yellow square.

The op-amps sometimes (rarely) fail so you can order them.

The power supply and output boards are not necessarily used together.

 

[Mjimenez]

Are tl072c or njm072c ?

 

[Perry Babin]

I don't understand the question.

Those are interchangeable and the op-amps on the board.

 

[Mjimenez]

oky I think I have op-amp 4558, can I place them?

 

[Perry Babin]

I don't know. Class D amps are notoriously finicky and the slightest change can make them inoperable and difficult to troubleshoot.

If it's not defective, I'd leave it as is.

I repaired a LOT of these and virtually 100% had no problems other than the 2 transistors in the yellow square.

 

[Mjimenez]

Oki I will replace everything damaged and comment as it was, now what voltages should it have in each one of the pins? talking about the driver board to check before mounting it.

 

[Mjimenez]

I can see that it says 5532 1 of the 2 op-amps despite being scraped

 

[Mjimenez]

Are the voltages good?