Sinar Digital Shutter problem

[eddysmit]

Hi,
I have bought 2 Sinar Digital shutters on ebay. They are selled "as is"...
Not mentioning that one set is missing a lot of screws 
However, both switch on and shutter time and diaphragm is working.
But the shutter blades are closed and stay closed when the shutter is tripped.
I can hear and see a mechanism winding the shutter and hear a click when the shutter trips.
444 44 shows up in the display and the whole unit resets.

What I'm doing wrong? Or what can be the problem?
Is there a service manual of this shutter? I'm used working at mechanical shutters.

Thanks.

[edwinb]

check out the service manuals atwww.image2output-support.com
best to download the pdfs as they can be quite large
edwin

[eddysmit]

Edwin,

thank you for this link.
I have been looking under service manuals and shutters.

Page 905 explains the digital shutter what I'm looking for.
However, this chapter is missing 

[edwinb]

I think your right although the manual is a bit scrappy in this area with pagination as its made up from other documents
I'll check with a hard copy when I can and let you know if there is any more
regards
Edwin

[edwinb]

So it really is missing and now no longer available, there are no supporting spare parts for it from Sinar any more.
sorry
Edwin

[eddysmit]

No problem Edwin.
I'll try to fix it without the service manual.

Thanks for your time and the very good link.
Happy Christmas and many happy photo shootings in 2011.