RCF ART 415A Protected Issue: Green & Red Lights On, IRS20955s or ADAU1701 Problem?

HI
rcf art 415a protected.
The green and red lights are bright together. Gate pin in Mosfets are not enabled through IRS20955s...There is 12 volts in irs . The. It's a problem with the IRS or ADAU1701?

Amingpx wrote:

Green and red lights are bright together.

This indicates damage to the final stage. The problem may be in the half-bridge transistors themselves, but also in some break in the output circuit itself, damaged RC elements there, or incorrect power supply.

Amingpx wrote:

about problem with IRS or ADAU1701?

Unless nothing has been done before, ADAU1701 is the last element that can be suspected.

Amingpx wrote:

IRS20955s... Wirs is 12 volts.

This is not enough, you need to check at least, for starters: Vdd pin 1, Vss pin4, Vcc pin 11, Vs pin13, Vb pin 15.

Due to the lack of a diagram, you can use similar solutions, with a typical use of IRS20955S:

Irs20955s

Pin 11( vcc) = 47v
Pin 4 = Vss =directly connected to ground =0v
Pin 1 = vdd = 10v
Pin 15 vb = 14v
Pin 13 vs =2.9v

Meanwhile I changed adau1701 but the problem was not resolved

Which LEDs are lit? The ones on the power supply or on the panel next to the potentiometer?
What is the gate voltage of q2 and q3? They are controlled by adau, high state (3.3V) is IRS shutdown.
What is the voltage on pin2 IRS? This pin is crucial, it must have a voltage almost the same as on pin2, i.e. about 10V. This is an open collector pin, if it is attached outside the system, the IRS will not rise.
What voltage on pin9 IRS? On pin11 there should be voltage from pin9 + 12V.

Sorry, but you replied too late. The owner of the device received it with the same problem.
Yes, red and green lights on.
These LEDs are next to the potentiometer. Mosfets are healthy.