Beaulieu 6008 PRO Repair

I left it alone for a long time. I got tired of checking every capacitor and transistor. No defective parts were found. And I couldn't find the viewfinder mask. There are many electrical contacts. Maybe one of them had a bad connection. Or maybe it was successful because I soldered it again. I'm glad it's working now. A shutter speed chart is attached. I don't know who made it, but it's very well made. It's a very ingenious mechanism. I don't know how they came up with it.