Help for schematic explorer 2

[Divardetector]

Hello friends, I need to know the parts number of the minelab explorer 2 metal detector's power part for repairs. Please, I need a schematic of the power board

[kt315]

the chipo markings sanded? can you read it?

[Divardetector]

Thank you for the reply. It has been sanded

[hameg_5000]

Hello, I can give you the information you need. Tell me what defect does your machine have?

[Divardetector]

Hello my friend . The problem with my device is that when the sensitivity is higher than 19, it produces strange sounds and after a few moments it calms down again. I changed the coil and there was no problem. I also changed the capacitor of the power part, but the problem was not solved. Thank you

[Orbit]

Replace the input amplifier ADxxx!

[Divardetector]

Hello . Please tell me the name of the piece, please show me from the photo. I don't know its exact location. Thank you very much for your attention

[Orbit]

AD 797

[Divardetector]

Thank you this is an op amp can you tell me on the map which one to change thanks .I put the photo of the circuit in the first post, please take a look

[Orbit]

Штампана плоча испод плоче за напајање уређаја.. Оно што стављате је плоча за напајање..

[Divardetector]

Thank you very much for your help, my friend, there is a multiplex IC that turns on automatically if there is a problem, I don't know the number, I will send you the photo.

[Divardetector]

Hello friends, does anyone know the number of this part, it belongs to minelab explorer 2