electronic circuit / ultrasonic cleaner

[reneman65]

hello everyone ,

i have a ultrasonic cleaner from the brand EMAG in germany , the type of unit is the EMMI 40 HC
now the problem is that the electronic circuit is deffect ,,,,the are two FET'S  IRFP 460 L on the board that where blown .
i replace those FET'S  and the unit stil don't work  ?
so i concentrate on the one 16 DIP IC   that i think is also deffect ,,but the identification number is scratched of by the manufactor 
can someone help me with this to figure out what kind of IC is needed for this 38 khz cleaner ...
i found some number stil readable  and looks like 44 number  ..it has to be a oscilator IC  in the 38khz range
the output of the ic i found that it drives two transistors one pnp and one npn  .

can anyone help  ?

thanks  rene van steenis   

[alsetalokin4017]

Without a schematic it is going to be pretty hard to tell just what the chip should be. Could be as simple as a TL494, but without knowing the circuit's pinout arrangement it is not possible to tell.

Also, you should probably put this post in the "Repair" thread rather than General Chat.

[1001]

it should be a CD4046B, phase-locked loop device, can you post a pic of whole pcb?

[DmitryL]

i have a ultrasonic cleaner from the brand EMAG in germany , the type of unit is the EMMI 40 HC
now the problem is that the electronic circuit is deffect ,,,,the are two FET'S  IRFP 460 L on the board that where blown .
i replace those FET'S  and the unit stil don't work  ?
so i concentrate on the one 16 DIP IC   that i think is also deffect ,,but the identification number is scratched of by the manufactor 
can someone help me with this to figure out what kind of IC is needed for this 38 khz cleaner ...
i found some number stil readable  and looks like 44 number  ..it has to be a oscilator IC  in the 38khz range
the output of the ic i found that it drives two transistors one pnp and one npn  .

Is is a "consumer grade" cleaner ? If yes, there should be a plenty of schematics in the internet. In brief: It is a simple self-oscillaing circuit, you power it on, it just generates. In my cleaner there is just one IC,  CD4xxx (don't remember) and its function is to generate time delay to keep thing turned ON, 3 minutes or whatever.