Kove AD2400 schematic diagram

[hanzooo]

Hello,
I search the schematic diagram to the Kove AD2400 amp, or the IC111 reference.
Thanks

 

[Perry Babin]

Post a good quality photo of the component side of the entire main board and the component side of any driver boards if no one can help.

 

[hanzooo]

The IC111 photo, i will post tomorrow for the entire main board

 

[Perry Babin]

That's an HIP4080.
https://www.renesas.com/en/document/apn/an9324-hip4080-80v-high-frequency-h-bridge-driver

When I see the top of the board, I'll see if I have a similar diagram.

What's wrong with the amplifier?

 

[hanzooo]

Four IRF3710 MOSFETs burned out, I replaced them, but the amplifier still remains in protection mode. Then I noticed that the IC111 was heating up using the thermal camera

 

[Perry Babin]

The IRF3710Z was better than the non-Z version. The replacement non-Z version caused a lot of problems but not completely preventing it for working.

Did you check the drive signals on the output FETs before installing them?

 

[hanzooo]

I didn’t check the signals, I just changed the mosfets

 

[Perry Babin]

Is there ever any drive to the outputs before it goes into protect?

In the future, always confirm that you have drive before installing the FETs.

 

[hanzooo]

Okay, I'll look at that later
Thank you