My second german Saturn for switchless MOD was not the same as the first one.
This one got 2 PCBs inside. A smaller Main PCB and a separate Controller Port PCB.
The Mainboard is called: 837-11892-01 PAL.
![layout_0_1 layout_0_1](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_0_1-300x225.jpg)
![layout_1 layout_1](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_1-300x300.jpg)
Here you can find the Mainboard Revision on the TOP Side of the Board
![layout_2 layout_2](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_2-300x192.jpg)
For correct working of the 50/60Hz you have to desolder Pin 1 and pull up pin 1 of IC20.
Then wire it to GND.
![layout_4 layout_4](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_4-300x225.jpg)
Backsite Mainboard.You need to cut the jumper at JP7 (remove the circuit)
![layout_3 layout_3](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_3-300x287.jpg)
Frontsite of the Mainboard (LED Resistors 220Ohm) PIC 16F630 cut the two red marked circuit pathes between JP12 and JP 10
![layout_5 layout_5](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_5-300x225.jpg)
Separate Controller PCB (cut the red marked circuit)
wire colors (upper site grey at the RESET Button, downsite white)
![layout_6 layout_6](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_6-300x213.jpg)
DUO-LED soldering an position at the separate Controller PCB
![layout_7 layout_7](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_7-300x241.jpg)
Some more pictures
![layout_8 layout_8](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_8-300x225.jpg)
![layout_10 layout_10](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_10-300x225.jpg)
![layout_9 layout_9](http://wolfsoft.de/wordpress/wp-content/uploads/2010/03/layout_9-300x225.jpg)