Thanks Geoff for your reply. have downloaded that but the schematics are a bit different in 895 and 897.
Problem with our machine was with the feed. It was out of order, I checked and found that fuse was blown, replaced it with same rating new fuse. Feed button worked while we tested, but after a few hours door button, feed buttons are not picking up signals.
895 shows this is problem with Main IC but the pinouts are different and thats why service manual is needed to diagnose the exact point of problem.
Girish Arora