Flash module restore

Hello everyone,

My name is Sergiu, I am new here an need help on a flash circuit.

I have 5 identical flash modules that comes probably from digital photo cameras.
I try to use them as slave flash. I have the slave trigger, this is not a problem.
But I don't understand how to connect each pin from the header to make them functional.

I had reverse-engineered the schematic from the circuit. It was not very easy because it is multi-layer but I hope is complete.
It was easy to understand that PIN6 from header is for GND and PIN5 is for Vcc.
I think PIN4 is for triggering the flash.

But what to do with PIN1,2 and 3?
And what would be the +Vcc value.
Here is the schematic and the module photo’s.

Thank you for your time.

Sergiu

**broken link removed**
**broken link removed** by Sergiu Ciubotariu, on Flickr

**broken link removed**
**broken link removed** by Sergiu Ciubotariu, on Flickr

**broken link removed**
**broken link removed** by Sergiu Ciubotariu, on Flickr

I changed the schematic. The oscilator area was erroneous.