ElectroVoice PA2250T schematics?

[tadejm]

Hello!

I'm repairing EV PA2250T amplifier, which was reportedly injured by lightning.

Does anyone have a schematic for this amplifier?

During the visual inspection, the first thing that caught my eye were blown capacitors around 5532 op amp.
But unfortunately I don't have any idea what the values should be...

Tnx!

 

[doorunrun]

You might try checking the other caps of the same form-factor in the unit with the hopes that EV wanted to keep from stocking a large variety of values and less errors with pick & place during assembly.

Good luck with the repair!

 

[Khron]

Those look like they might be on the supply rails of the opamp (V+ on pin 8, V- on pin 4), so... No guarantees the opamp survived, unless the internal ESD protection diodes managed to stay in one piece somehow.

 

[tadejm]

Those look like they might be on the supply rails of the opamp (V+ on pin 8, V- on pin 4), so... No guarantees the opamp survived, unless the internal ESD protection diodes managed to stay in one piece somehow.

Yes I know...