Need Gecko Stepper Drive Schematic

[dex]

Does anyone have a schematic of the G201 or G203V Gecko Stepper drives?  I'm wanting to see if is possible to upgrade the G201 to have the same circuit protection given by the G203V.

Thanks in advance.

[dandumit]

here you can find a simplified schematic after g203

http://www.dioda.ro/Content/pid=24.html