Zener Diode Color Coding
If you look at the photo, you will see a diode (D835) have two color stripes across it-Green and Blue color. Since the label is D (D835) so you may think it is a normal diode but actually it is a zener diode. Some manufacturers when putting the label do not follow the standard coding and this will give a problem to repairer. As a repairer you must be flexible otherwise you may have thought that this is a normal diode. From the schematic, the part number was MA2560 and further check from the datasheet website-it was proven to be a 56 volt zener diode. You can click on the this link to view the zener diode data in pdf.